Clinical significance of digital measurement of occipital condyle and foramen magnum in children / 中国组织工程研究

BACKGROUND:Due to the young age of children,the occipital condyle and foramen magnum are not fully developed,and they are prone to various diseases and injuries in the occipitocervical junction,which requires surgical treatment in severe cases.However,anatomical parameters for the development of the occipital condyle and foramen magnum in children are lacking. OBJECTIVE:To measure the morphological structure of the occipital condyle and foramen magnum by three-dimensional reconstruction technique,and to provide important anatomical parameters for occipitocervical junction lesions,related surgical procedures and forensic identification. METHODS:Imaging data of 389 cases of primitive children and adolescents involved in skull base undergoing spiral CT scanning(247 males and 142 females)aged 1-18 years were collected and divided into 1-3-year-old group,4-6-year-old group,7-9-year-old group,10-12-year-old group,13-15-year-old group,and 16-18-year-old group according to their age.Mimics 16.0 software was used to reconstruct the skull base and measure the length and width of the foramen magnum.A formula was used to calculate the area and index of the foramen magnum.We measured the length,width and height of the occipital condyle,the angle between the long axis and the sagittal axis of the occipital condyle(O-S angle),the included angle between the midpoint of the front and back edges of the foramen magnum and the connection between the back edge of occipital condyle and the intersection point of the foramen magnum(F-O angle),and the included angle between the midpoint of the front and back edges of the foramen magnum and the midpoint of the back wall of the sublingual neural tube(F-H angle).Gender,side and age differences were analyzed among the indicators. RESULTS AND CONCLUSION:(1)In foramen magnum measurement,there was no significant difference between sexes in the index of the foramen magnum(P>0.05),but there were significant differences in length,width and area of the foramen magnum(P<0.05).(2)The O-S angle,F-O angle and F-H angle of the occipitral condyle were not significantly different between genders(P>0.05),but length,width and height of the occipital condyle were significantly different between genders(P<0.05).(3)There were no significant differences in the length of the occipital condyle among different groups(P>0.05),but there were significant differences in the width and height of the occipital condyle,O-S angle,F-O angle and F-H angle among different groups(P<0.05).(4)Length,width and area of the foramen magnum,length,width and height of the occipital condyle showed a wavy increasing trend with the increase of age,while O-S,F-O and F-H angles showed a wavy decreasing trend with the increase of age,while the index of the foramen magnum showed no significant change.(5)In conclusion,there are gender and lateral differences in the morphological indexes of the foramen magnum and the occipital condyle in children.These differences can provide an important reference for clinical surgical approach selection and forensic examination.

Micro-CT analysis of distribution and structural characteristics of bone trabeculae in the calcaneus / 中国组织工程研究

BACKGROUND:The calcaneus is located in the lower posterior part of the foot and is heavily stressed.Calcaneus is complex and irregular in shape,surrounded by thin cortical bone and filled with a large number of trabeculae.The study of the microstructure,movement,and distribution of trabeculae is helpful to improve the understanding of calcaneus fracture. OBJECTIVE:The image data of calcaneus were obtained by scanning the calcaneus specimens with micro-computed tomography,and the structure of trabecular bone in calcaneus was analyzed to explore the morphology,distribution and structural characteristics of trabecular bone in calcaneus. METHODS:Dry adult calcaneus specimens were continuously scanned by micro-computed tomography,and the images were obtained after scanning and stored in DICOM format.Image data were imported into Hiscan Analyzer software to display clear and complete images of the sagittal plane,coronal plane,and the horizontal plane of the adult calcaneus.The trabecular movement of bone was observed layer by layer.According to the trabecular movement characteristics,the sagittal plane of the calcaneus was divided into six parts.A 49-mm2 region of interest was selected for each part at the same thickness as 7 mm.The three-dimensional microstructure of calcaneus and trabecular bone was obtained after three-dimensional reconstruction.After binarization,the volume fraction,surface density,trabecular thickness,trabecular space,and trabecular number parameters of the trabecular bone in the region of interest were calculated by software. RESULTS AND CONCLUSION:(1)The cortical layer of the calcaneus was very thin and filled with a large amount of cancellous bone,and the cortical layer of the horn of Gissane was obviously thickened.(2)The trabecular volume fraction in the upper part of the calcaneus was greater than that in the anterior part of the lower part of the calcaneus,the central triangle,the posterior part of the lower part of the calcaneus,and the base of the calcaneus,and the trabecular volume fraction in the tubercle of the calcaneus was greater than that in the anterior part of the lower part of the calcaneus,the central triangle,the posterior part of the lower part of the calcaneus,and the base of the calcaneus.The surface density of the trabecular bone in the tubercle of the calcaneus was higher than that in the front of the lower calcaneus,the middle triangle area,and the bottom of calcaneus,and the surface density of the trabecular bone in the upper part of calcaneal bone,and the lower part of the calcaneus was higher than that in the middle triangle area.The thickness of the trabecular bone in the upper part of the calcaneus was greater than that in the tubercle of the calcaneal bone.The bone trabecular space in the middle triangle was larger than that in the upper part of the calcaneus and calcaneal tubercles.The number of bone trabeculae in the calcaneal tubercles was greater than that in the middle triangle area.(3)These results indicate that the trabeculae of rod bone were mainly distributed in the middle triangle area.The surface density of trabeculae was the smallest,the volume fraction was smaller,and the space between trabeculae was the largest.This part of the bone is relatively loose.The compression resistance is poor when subjected to high impact.The trabecular bone fractures first occur,which is a prone site for fractures.

Isolation and Characterization of Bacterial Endophytes from Maize Genotypes Varying in Resistance against Macrophomina phaseolina

The present work aims to isolate and characterize the bacterial endophytes associated with different maize genotypes varying in resistance to disease reaction against Macrophomina phaseolina. A total of 50 endophytic bacteria were isolated from root and stem of healthy maize plants at 30 DAS, 60 DAS by using two different media like TSA, NA medium and maximum number of endophytic bacterial population were recovered from root followed by stem in all the genotypes and TSA medium was found to be the most suitable medium for deciphering maximum endophytic bacterial diversity. The isolated bacterial endophytes were characterized on the basis of morphological parameters viz., size, shape, colour, margin and texture, elevation, gram staining reaction and it was observed that Gram positive bacteria (68.0 %) formed the dominant group. The colony characterization revealed that circular forms (38.0 %) were dominated. Among the colony features the colonies with entire margins (66.0 %) and convex elevation (44.0 %) were found to be dominating.

Morphological characteristics and pulmonary function of naval saboteurs and ground special forces of the armed forces of Montenegro / Características morfológicas y función pulmonar de saboteadores navales y fuerzas especiales terrestres de las fuerzas armadas de Montenegro

SUMMARY: The results of numerous medical and kinesiological studies indicate the existence of differences in pulmonary function in relation to age, body height, and the relationship between certain parameters of body composition. The aim of this study was to determine the state of morphological characteristics and pulmonary function of naval saboteurs and ground Special Forces of the Armed Forces of Montenegro. The sample of participants included 30 naval saboteurs aged 30.3±6 years and 30 members of the ground special forces aged 25.6±5 years. The sample of measuring instruments included 4 indicators each for the evaluation of longitudinal dimensionality, transversal dimensionality, mass and body volume, subcutaneous fat, body composition, and pulmonary function. The central and dispersion parameters of the variables were calculated. The specificities of body composition of the naval saboteurs and members of the ground Special Forces of the AF of Montenegro were determined, while the parameters of lung volume and capacity and the parameters of airway flow indicated an excellent state of their respiratory function. Furthermore, it was determined that the studied members of the armed forces had no individual health risks in the sense of the onset of obesity or obstructive ventilatory defects. The results obtained indicate the need for further studies which would predominantly focus on the impact of individual morphological measurements and parameters of body composition on pulmonary function. This would provide important data both for the armed forces in the sense of improving the training system and the realization of specific tasks, as well as for kinesiology as a science from the aspect of determining certain regularities in the functioning of the human body in specific living and working conditions in the armed forces.

Los resultados de numerosos estudios médicos y kinesiológicos indican la existencia de diferencias en la función pulmonar en relación con la edad, la altura corporal y la relación entre determinados parámetros de la composición corporal. El objetivo de este estudio fue determinar el estado de las características morfológicas y la función pulmonar de los saboteadores navales y de las Fuerzas Especiales terrestres de las Fuerzas Armadas de Montenegro. La muestra de participantes incluyó a 30 saboteadores navales de 30,3±6 años de edad y 30 miembros de las fuerzas especiales terrestres de 25,6±5 años. La muestra de instrumentos de medición incluyó 4 indicadores cada uno para la evaluación de dimensionalidad longitudinal, dimensionalidad transversal, masa y volumen corporal, grasa subcutánea, composición corporal y función pulmonar. Se calcularon los parámetros centrales y de dispersión de las variables. Se determinaron las especificidades de la composición corporal de los saboteadores navales y miembros de las Fuerzas Especiales terrestres de la FA de Montenegro, mientras que los parámetros de volumen y capacidad pulmonar y los parámetros de flujo de las vías respiratorias indicaron un excelente estado de su función respiratoria. Además, se determinó que los miembros de las fuerzas armadas estudiados no tenían riesgos individuales de salud en el sentido de la obesidad o defectos ventilatorios obstructivos. Los resultados obtenidos indican la necesidad de más estudios que se centren predominantemente en el impacto de las medidas morfológicas individuales y los parámetros de composición corporal en la función pulmonar. Esto proporcionaría datos importantes tanto para las fuerzas armadas en el sentido de mejorar el sistema de entrenamiento y la realización de tareas específicas, como para la kinesiología como ciencia desde el aspecto de determinar ciertas regularidades en el funcionamiento del cuerpo humano en situaciones específicas de vida. y condiciones de trabajo en las fuerzas armadas.

Morphological characteristics and motor abilities differences: first and second Montenegrin league female volleyball players / Características morfológicas y diferencias en habilidades motoras de jugadoras de voleibol de la primera y segunda liga montenegrina

SUMMARY: The aim of this study is to determine whether there is a statistically significant difference in morphological characteristics and motor abilities of the first and second league female volleyball players. The sample comprised of 20 players of the first and 20 players of the second league. Only those female volleyball players who completed the whole measurement program were included in the sample. Subjects underwent measurement of morphological characteristics (7 variables) and motor abilities (8 variables). Statistically significant differences were determined with t-test for independent samples. The results of the research show that there are no statistically significant differences in morphological characteristics and motor abilities of the first and second league female volleyball players. The difference was found only in the variable for assessing balance in favor of first league female volleyball players.

El objetivo de este estudio fue determinar si existe una diferencia estadísticamente significativa en las características morfológicas y habilidades motoras de las jugadoras de voleibol de primera y segunda liga. La muestra estuvo conformada por 20 jugadores de primera y 20 jugadores de segunda liga. Solo se incluyeron en la muestra aquellas jugadoras de voleibol que completaron todo el programa de medición. Los sujetos se sometieron a la medición de las características morfológicas (7 variables) y habilidades motoras (8 variables). Las diferencias estadísticamente significativas se determinaron con la prueba t para muestras independientes. Los resultados de la investigación mostraron que no existían diferencias estadísticamente significativas en las características morfológicas y habilidades motrices de las jugadoras de voleibol de primera y segunda liga. La diferencia se encontró solo en la variable para evaluar el equilibrio a favor de las jugadoras de voleibol de primera división.

Phenotypic intrapopulation variation in quinoa from the department of Boyacá, Colombia / Variación fenotípica intrapoblacional en quinua en el departamento de Boyacá, Colombia

ABSTRACT Quinoa (Chenopodium quinoa Wild.) is an Andean crop that originated from the Andes of South America, with great agronomic, industrial, pharmaceutical potential and also a great capacity to tolerate adverse environmental factors. In Colombia, more accurately in the Department of Nariño, Cauca, Cundinamarca and Boyacá. Shows great genetic variation, both molecular and morphological, which organization remains poorly documented. In Boyacá, there are few studies on the morphological characterization of cultivated materials, and there is no certified planting material, with farmers planting a mixture of materials. Qualitative and quantitative descriptors and principal component and cluster analyses were used to characterize the structure of the intra-population phenotypic variation in Blanca de Jericó quinoa materials grown in the Department of Boyacá. The principal component analysis explained more than 70 % of the observed variation, with the AP, LP, DP, LHS, and AHS characteristics being more variable. The cluster analysis showed grouping by characteristics, such as AP, panicle color, and the presence of pigmented axillae. Results show that the variance in morpho-phenological traits was concentrated at the intra-population, due to high variation at the inter-individual level. A more efficient selection process should be carried out to find materials or "pure" varieties with higher yields, resistance to biotic and abiotic factors, and adaptation to local conditions, which make quinoa an economically profitable crop in the Boyacá department.

RESUMEN La quinua (Chenopodium quinoa Wild.) es un cultivo andino, originario de los Andes Suramericanos, con gran potencial agronómico, industrial y farmacéutico y también con una gran capacidad para tolerar factores ambientales adversos. En Colombia, actualmente, se cultiva en los departamentos de Nariño, Cauca, Cundinamarca y Boyacá. Presenta una gran variación genética, tanto a nivel molecular como morfológica, la cual, ha sido poco documentada. En Boyacá son pocos los estudios de caracterización morfológica de materiales cultivados y no hay material de siembra certificado, por lo que los agricultores siembran una mezcla de materiales. Descriptores cualitativos y cuantitativos y un análisis de componentes principales y de agrupamiento fueron usados para caracterizar la estructura de la variación fenotípica intrapoblacional de los materiales de quinua Blanca Jericó, que son cultivados en el departamento de Boyacá. El análisis de componentes principales explicó más del 70 % de la variación observada, siendo las características más variables AP, LP, DP, LHS y AHS. El análisis clúster mostró un agrupamiento por características, tales como AP, color de la panícula y presencia de axilas pigmentadas. Los resultados mostraron que la variación en las características morfológicas estaba concentrada dentro de la población, debido a la alta variación, a nivel inter-individual. Se deben llevar a cabo procesos de selección más eficientes para encontrar materiales "puros" o variedades con más altos rendimientos, con resistencia a factores bióticos y abióticos y adaptados a las condiciones locales, para así hacer de la quinua un cultivo económicamente rentable para el departamento de Boyacá.

Blood formed elements of the women with uterine tumors as one of the criterion for assessment of severity of the pathology

The indicators for structural analysis of blood formed elements are prominent in the assessment of pathologies, diagnostics and the degree. Therefore, we aimed to evaluate the ongoing alterations that reflect on the structural characteristics of blood formed elements based on the hormonal imbalance among menopausal women with uterine tumors. Blood samples from the women with benign (n=20), malignant (n=20) uterine tumors, and healthy menopausal women (control, n=20) were used. Enzyme-linked Immunosorbent assay (ELISA) kits were used for the quantitative determination of hormones. The blood formed elements ultrastructure observations were conducted using transmission electron microscope. Compared to control (33.8±0.7 pg/mL), estradiol level was higher in benign (45.7±0.9 pg/mL) and malignant (70.7±3.7 pg/mL) cases (P< 0.001). Similar pattern was noted in testosterone levels [control=0.38±0.03 ng/mL, benign=0.55±0.04 ng/mL (P< 0.01), malignant=1.56±0.14 ng/mL (P< 0.001)] was higher in malignant cases. In contrast, progesterone levels were decreased in the disease cases [control=0.93±0.05 ng/mL, benign=0.44±0.003 ng/mL, malignant=0.31±0.02 ng/ml (P< 0.001)]. Assessments of the morphologic structure of erythrocytes revealed pathological forms of erythrocytes (poikilocytosis) in case of benign, as well as in malignant tumors. particularly target cells (codocytes), hamlet cells, teardrop cells (dacrocytes), sickle cell (drepanocytes) erythrocytes. Using ELISA and transmission electron microscopy our results demonstrate that in case of malignant uterine tumor quantitative/structural changes occur in blood formed elements indicating ongoing alterations in hormonal imbalance. Assessing these changes in structural characteristics would be useful in examining uterine pathologies and subsequent treatment plans

Morphology changes of maxillary molar distalization by clear aligner therapy / Cambios de la morfología en la distalización de molares maxilares mediante terapia con alineadores transparentes

SUMMARY: To evaluate the skeletal, dento-alveolar and soft tissue morphology changes after maxillary molar distalization by clear aligner therapy and identify the significant efficacy of molar distalization,18 patients in conformity with the inclusion criteria were selected. Pre- and post-treatment Cone Beam Computed Tomography (CBCT) were examined to measure the angular and linear parameters. All subjects were completed non-extraction clear aligner treatment by distalizing molars. A paired-t test and independent-samples t-test were performed to observe the difference between before and after treatment and the difference between the first molar and second molar respectively. P-values <0.05 were considered statistically significant. Predicted movement rate was calculated by the formula: (actual movement(mm)/planned movement(mm)) x100%. Most variables of pre- and post-treatment showed no statistical difference(P<0.05), excepting SNA angle (P<0.05) and Upper lip/E-line linear (P<0.01) due to incisor retraction. The first and second molar revealed a translation movement without significant tipping and vertical movement. Clear aligners provided a high predictability (83.44 %) of distalization the maxillary first molar, and 85.14 % of the maxillary second molar. Clear aligners can effectively achieve distal displacement of molars.

RESUMEN: Se seleccionaron 18 pacientes, de acuerdo con los criterios de inclusión, para evaluar los cambios en la morfología esquelética, dentoalveolar y de los tejidos blandos después de la distalización de los molares maxilares, mediante la terapia con alineadores transparentes e así identificar la significativa eficacia de la distalización de los molares. Se examinó a través de tomografía computarizada de haz cónico (CBCT) antes y después del tratamiento para medir los parámetros angulares y lineales. Todos los sujetos completaron el tratamiento con alineadores transparentes sin extracción mediante la distalización de los molares. Se realizó una prueba t pareada y una prueba t de muestras independientes para observar la diferencia entre antes y después del tratamiento y la diferencia entre el primer molar y el segundo molar, respectivamente. Los valores de p<0,05 se consideraron estadísticamente significativos. La tasa de movimiento prevista se calculó mediante la fórmula: (movimiento real (mm)/movimiento planificado (mm)) x 100 %. La mayoría de las variables de pre y postratamiento no mostraron diferencia estadística (P<0,05), excepto el ángulo SNA (P<0,05) y el labio superior/línea E lineal (P<0,01) debido a la retracción del incisivo. El primer y segundo molar revelaron un movimiento de traslación sin inclinación significativa y movimiento vertical. Los alineadores transparentes proporcionaron una alta previsibilidad (83,44 %) de la distalización del primer molar superior y del 85,14 % del segundo molar superior. Los alineadores transparentes pueden lograr efectivamente el desplazamiento distal de los molares.

The effects of the aerobic endurance running program on the morphological characteristics of adolescent girls with different nutritional status / Efectos del programa de carrera de resistencia aeróbica en las características morfológicas de las adolescentes con diferentes estados nutricionales

SUMMARY: This study aimed to explore the effects of a single moderate-intensity aerobic endurance running program on the morphological characteristics of normal-weighted and overweighted female adolescents and whether effects differ between individuals of different nutritional statuses. A total of 47 adolescent girls participated in this randomized controlled trial. Before and after 12 weeks of intervention, measurements were obtained for body height, body mass, BMI, triceps, subscapular, abdominal, thigh, and calf skinfolds, and chest, abdominal, thigh, and calf circumference. The total duration of the program was 12 weeks, with a frequency of 2 hours/week (24 sessions). The individual session lasted 60 minutes, and the intensity ranged from 60 % HRmax to 80 %. The findings from the present study suggest that the 12-week aerobic endurance running program induced changes in morphological characteristics of female adolescents. The significant reductions in body mass and BMI were small for normal-weight adolescents (-2,64 % and -3,48 %) and moderate for overweight adolescents (-4,14 % and -4,36 %) following the experimental program. The magnitude of reductions in the skinfold thickness was small for both groups (triceps, subscapular, abdominal, and calf) and moderate for thigh skinfold and a sum of skinfolds in the overweight group. The reductions in the magnitude of all circular measures were small for both groups. It ranged from - 1.59 % to -2.59 % for normal-weight and from -2.54 % to -3.92 % for overweight adolescents, respectively. Additionally, the effects of the applied program seem more favorable to overweight than normal-weight adolescents. This study's current findings indicate that the 12-week aerobic endurance running program is effective due to improvements in morphological characteristics, body mass, and BMI of female adolescents. Additionally, this study's findings show that applied aerobic endurance running program proved more effective for overweight adolescents.

RESUMEN: Este estudio tuvo como objetivo explorar los efectos de un programa único de carrera de resistencia aeróbica de intensidad moderada sobre las características morfológicas de mujeres adolescentes con peso normal y con sobrepeso y si los efectos difieren entre individuos con diferentes estados nutricionales. Un total de 47 niñas adolescentes participaron en este ensayo controlado aleatorio. Antes y después de 12 semanas de intervención, se obtuvieron mediciones de altura corporal, masa corporal, IMC, tríceps, pliegues cutáneos subescapular, abdominal, muslo y pantorrilla, y circunferencia torácica, abdominal, muslo y pantorrilla. La duración total del programa fue de12 semanas, con una frecuencia de 2 horas/semana (24 sesiones). La sesión individual tuvo una duración de 60 minutos y la intensidad osciló entre el 60 % y el 80 % de la FCmáx. Los hallazgos del presente estudio sugieren que el programa de carrera de resistencia aeróbica de 12 semanas indujo cambios en las características morfológicas de las adolescentes. Las reducciones significativas en la masa corporal y el IMC fueron menores para los adolescentes con peso normal (-2,64 % y -3,48 %) y moderadas para los adolescentes con sobrepeso (-4,14 % y -4,36 %) después del programa experimental. La magnitud de las reducciones en el grosor del pliegue cutáneo fue pequeña para ambos grupos (tríceps, subescapular, abdominal y pantorrilla) y moderada para el pliegue cutáneo del muslo y la suma de los pliegues cutáneos en el grupo con sobrepeso. Las reducciones en la magnitud de todas las medidas circulares fueron pequeñas para ambos grupos. Osciló entre -1,59 % y -2,59 % para normopeso y entre -2,54 % y -3,92 % para adolescentes con sobrepeso, respectivamente. Además, los efectos del programa aplicado parecen más favorables para los adolescentes con sobrepeso que para aquellos de peso normal. Los hallazgos actuales de este estudio indican que el programa de carreras de resistencia aeróbica de 12 semanas es eficaz, debido a las mejoras en las características morfológicas, la masa corporal y el IMC de las adolescentes. Además, los hallazgos de este estudio muestran que el programa de carrera de resistencia aeróbica aplicada demostró ser más efectivo para los adolescentes con sobrepeso.

Trends in body height, body weight, BMI, and nutrition status from 1979 to 1987: a measurement-based analysis of 10, 954 male adolescents from the municipality of Bijelo Polje / Tendencias en la altura corporal, el peso corporal, el IMC y el estado nutricional de 1979 a 1987: un análisis basado en mediciones de 10. 954 adolescentes varones del municipio de Bijelo Polje

SUMMARY: This study aimed to consolidate data regarding body height, body weight, body mass index, and nutrition status of the entire young male population from the Municipality of Bijelo Polje in order to estimate trends from 1979 to 1987. The sample of respondents includes 10,954 young males divided into nine groups. The measurement sample includes body height, body weight, and body mass index based on two previous measures. The descriptive statistics were expressed as a mean and standard deviation for each variable, while the analysis of nutrition status was done based on body mass index (underweight, normal weight, pre-obese, obese). The results showed that a secular trend in the observed study period is not visible regarding body height, body weight, and body mass index. The contribution of this study is reflected in the fact that there were no previously published data for this period and this municipality; the data can significantly aid in monitoring the secular trends throughout Montenegro.

RESUMEN: Este estudio tuvo como objetivo consolidar los datos sobre la altura corporal, el peso corporal, índice de masa corporal y el estado nutricional de toda la población masculina joven del Municipio de Bijelo Polje con el fin de estimar las tendencias de 1979 a 1987. La muestra de encuestados incluyó 10.954 hombres jóvenes divididos en nueve grupos. Las mediciones incluyeron la altura corporal, el peso corporal y el índice de masa corporal basado en dos medidas anteriores. Las estadísticas descriptivas se expresaron como media y desviación estándar para cada variable, mientras que el análisis del estado nutricional se realizó con base en el índice de masa corporal (bajo peso, peso normal, pre-obesidad, obesidad). Los resultados mostraron que una tendencia secular en el período de estudio observado no es visible con respecto a la altura corporal, el peso corporal y el índice de masa corporal. La contribución de este estudio está basada en que no existían datos publicados previamente para este período y en este municipio; los datos pueden ayudar significativamente a monitorear las tendencias seculares en todo Montenegro.

Correlation Analysis of Parasitic Chinese Medicine Based on Morphology-habit-habitat-property and Efficacy / 中国实验方剂学杂志

Objective:To explore the correlation of the botanical characteristics， biological characteristics， habitat， and medicinal property and efficacy of parasitic Chinese medicines， underpin quality evaluation based on property differentiation， and provide references for the development and utilization of parasitic medicinal plant resources. Method:The origin， property and meridian tropism， parasitic type， and the efficacy of the common of parasitic Chinese medicines were summarized. The frequencies of parasitic Chinese medicines in Qingfei Paidu decoction，<italic> Medicine Food Homology</italic>， <italic>Catalogue of Ancient Classical Formulas （the first batch）</italic>， and the 2020 edition of <italic>Chinese Pharmacopoeia</italic> were statistically analyzed. Excel 2013 and SPSS Statistics 23.0 were employed for statistical research. Result:The ranking results of parasitic Chinese medicines are listed below： root parasitism>stem parasitism>root hemiparasitism>symbiosis=saprophytism according to the parasitic type， plain>warm>cool>cold， no heat involved according to nature， sweet>bitter>pungent>sour=salt， with one sweet-pungent， one sweet-bitter， one sweet-salt， and one bitter-salt Chinese medicine according to flavor， kidney>liver>large intestine>spleen>lung>heart=bladder， no small intestine meridian involved according to meridian tropism. Conclusion:Parasitic Chinese medicines were mostly root-parasitic， plain in nature， sweet in flavor， and entered kidney meridian， with main effects of dispelling wind-dampness， nourishing liver and kidney， clearing heat， and removing toxin. The morphology， habit， and habitat of parasitic Chinese medicine were correlated with the property and efficacy. This study is expected to provide comprehensive references and a theoretical basis for in-depth research， clinical application， and resource development.

Value of dual-layer spectral detector CT in differentiating the diagnosis of lung cancer and inflammatory nodules / 中华放射学杂志

Objective:To explore the value of dual-layer spectral detector CT in differentiating the diagnosis of lung cancer and inflammatory nodules.Methods:A total of 92 patients undergoing enhanced chest scan from March 2019 to September 2020 at Renji Hospital, School of Medicine, Shanghai Jiaotong University, were retrospectively enrolled in the study. The conventional CT parameters, spectral CT parameters were measured and the nodules′ morphological characteristics were analyzed. Later the factors with statistical significance were identified as independent variables in a logistic regression model to establish models for predicting malignant nodules. ROC curve was used to assess the diagnostic performance for the conventional CT model, spectral CT parameters and combined model, respectively. Differences in the area under the ROC curve (AUC) were analyzed by the DeLong test.Results:Lobulated sign (42 and 8, respectively, χ2=10.779, P=0.001), short burr sign (41 and 7, respectively, χ2=11.911, P=0.001), pleural indentation sign (45 and 9 respectively, χ2=11.705, P=0.001), vascular convergence sign (35 and 8, respectively, χ2=5.337, P=0.021) and the venous phase iodine concentrations (IC) value [(2.1±0.5) mg/ml, (2.3±0.5) mg/ml, t=-2.464, P=0.016], normalized iodine concentrations (NIC) value (0.40±0.06, 0.45±0.08, t=-6.943, P<0.001), and Z-effective (Z eff) values (8.38±0.21, 8.49±0.19, t=-2.122, P=0.037) were significantly different between the lung cancer group and the inflammatory group, while other CT signs and CT indicators were not significantly different between the lung cancer group and the inflammatory group ( P>0.05). The conventional CT model was established with lobulated sign, short burr sign, pleural indentation sign, vascular convergence sign, and the AUC for differential diagnosis of lung cancer and inflammatory nodules was 0.827. The spectral CT parameter model was established with venous phase IC, venous phase NIC, and venous phase Z eff value, and the AUC for differential diagnosis of lung cancer and inflammatory nodules was 0.899. The conventional CT model combined spectral CT parameter model was established with the significant factors in the univariate analysis, and the AUC for differential diagnosis of lung cancer and inflammatory nodules was 0.925. The AUC of the combined model showed no significant difference from that of the spectral CT parameter model ( Z=1.794, P=0.073). However, AUC of the combined model was significantly higher than that of evaluation based on conventional CT alone ( Z=2.156, P=0.031). Conclusion:Spectral CT parameters combined with conventional CT signs can improve the differential diagnosis efficiency between lung cancer and inflammatory nodules.

Detection of inferior myocardial infarction based on morphological characteristics / 生物医学工程学杂志

Early accurate detection of inferior myocardial infarction is an important way to reduce the mortality from inferior myocardial infarction. Regrading the existing problems in the detection of inferior myocardial infarction, complex model structures and redundant features, this paper proposed a novel inferior myocardial infarction detection algorithm. Firstly, based on the clinic pathological information, the peak and area features of QRS and ST-T wavebands as well as the slope feature of ST waveband were extracted from electrocardiogram (ECG) signals leads Ⅱ, Ⅲ and aVF. In addition, according to individual features and the dispersion between them, we applied genetic algorithm to make judgement and then input the feature with larger degree into support vector machine (SVM) to realize the accurate detection of inferior myocardial infarction. The proposed method in this paper was verified by Physikalisch-Technische Bundesanstalt (PTB) diagnostic electrocardio signal database and the accuracy rate was up to 98.33%. Conforming to the clinical diagnosis and the characteristics of specific changes in inferior myocardial infarction ECG signal, the proposed method can effectively make precise detection of inferior myocardial infarction by morphological features, and therefore is suitable to be applied in portable devices development for clinical promotion.

Sex prediction by analysis of the morphological characteristics of macerated skulls / Predicción sexual mediante análisis de las características morfológicas de cráneos macerados

The skull is a reliable structure for determining the sex of an adult individual; it is generally resistant in adverse conditions, allowing it to be used for the analysis of sexual dimorphism. In the present study we analysed 10 non-metric characteristics of skulls of Brazilian adult individuals in order to: Determine the strength of association between sex and the morphological characteristics of the skull, the morphological characteristic(s) with greatest diagnostic influence for sex, and analyse whether the morphological characteristics of the skull predict sex. The study included 179 macerated skulls of Brazilian adults, (69 female, 110 male). The sex of all the skulls included was identified. The investigators were calibrated prior to analysis and all the evaluations were carried out under blinding. Pearson's Chi-squared test was used. The sensitivity and specificity were analysed and a ROC curve was constructed. Binary logistic regression was carried out. The SPSS v.22 software was used, with a significance threshold of 5 %. All the characteristics analysed presented statistically significant differences (p<0.05). The frontal profile, the superciliary arch and the glabella presented the greatest sensitivity, best balance between sensitivity and specificity and greatest area under curve. The regression model with the frontal profile, superciliary arch and mastoid process was significant [X2(2) = 115,728 p=0.000, R2 Negelkerke=0.657], and presented correct sex classification in 90 % of cases (Males: 87.4 %; Females: 83.1 %). In unknown individuals for whom the skull is present, non-metric analysis of the frontal profile, superciliary arch, mastoid process and glabella can be used as instruments for sex identification.

El cráneo es una estructura confiable para la determinación sexual de un individuo adulto y suele ser resistente en condiciones adversas, por lo que puede ser utilizado para el análisis del dimorfismo sexual. En el presente estudio analizamos 10 características no métricas de cráneos de individuos brasileños adultos a fin de determinar la fuerza de asociación entre el sexo y características morfológicas del cráneo; determinar la(s) característica(s) morfológica(s) con mejor poder para diagnosticar el sexo; y analizar si las características morfológicas del cráneo son previsoras del sexo. Fueron incluidos 179 cráneos macerados de brasileños adultos, (69 femeninos, 110 masculinos). Todos los cráneos incluidos presentaban identificación de sexo. Los investigadores fueron previamente calibrados y todas las evaluaciones fueron realizadas de forma ciega. Se utilizó la prueba de Chicuadrado de Pearson. Se analizó la sensibilidad y especificidad y se construyó una curva ROC. Se realizó regresión logística binaria. Se utilizó el software SPSS v.22, considerando umbral de significación de 5 %. Todas las características analizadas presentaron diferencias estadísticas significativas (p<0,05). El perfil frontal, el arco superciliar y la glabela fueron las características que presentaron mayor sensibilidad, mejor equilibrio sensibilidad/especificidad y mayor area under curve. El modelo de regresión con el perfil frontal, arco superciliar y proceso mastoides fue significativo [X2(2) = 115,728 p=0.000, R2 Negelkerke=0,657], y presentó una clasificación sexual correcta de 90 % (Males; 87,4 %; Females: 83,1 %). En individuos desconocidos en los cuales esté presente el cráneo, el análisis no-métrico del perfil frontal, del arco superciliar, del proceso mastoides y de la glabela pueden ser utilizados como herramienta para identificación sexual.

Morphological characteristics and body composition of elite volleyball players: three Montenegrin clubs with most trophies participating in European competitions / Características morfológicas y composición corporal de los jugadores de voleibol de élite: tres clubes montenegrinos con la mayoría de los trofeos que participan en competencias europeas

The aim of this research was to determine the differences related to morphological characteristics and body composition among volleyball players of the three most successful volleyball clubs in Montenegro. The results of the survey highligted the differences in terms of morphological characteristics and body composition of the players of VC Budva, VC Buduc´nost and VC Jedinstvo. The sample of 43 subjects was divided into three sub-samples, the sub-sample of the subjects consisting of 12 players of VC Budva, the champions of Montenegro 2018-19, the other sub-sample of 17 players of VC Buducnost, the participant in the European CEV Challenge Cup 2018-19, and the one of the examinees including 14 players of VC Jedinstvo, the champions of Montenegro in the season 2017-18. Morphological characteristics in the body composition were evaluated by a battery of 11 variables: body height, body weight, triceps skinfold, biceps skinfold, skinfold of the back, abdominal skinfold, calf skinfold, thigh skinfold, body mass index, fat percentage and muscle mass. The difference between the players of three the most successful volleyball clubs in the morphological characteristics and variables for assessing body composition were determined by ANOVA and LSD Post Hoc test. ANOVA test found statistically significant differences between these three clubs, determined by six variables that estimate the skinfolds, as well as a variable of estimated body mass index (BMI). LSD Post Hoc test found that the volleyball players of VC Budva have significantly lower values ??with regard to triceps skinfold, biceps skinfold, abdominal skinfold, calf skinfold and thigh skinfold, compared to the players of VC Buducnost and VC Jedinstvo, while in the case of variables that evaluates body mass index (BMI), volleyball players of VC Buducnost have less values compared to the players of VC Budva and VC Jedinstvo.

El objetivo de esta investigación fue determinar las diferencias relacionadas con las características morfológicas y la composición corporal entre los jugadores de voléibol de los tres clubes de voleibol más exitosos de Montenegro. Los resultados de la encuesta destacaron las diferencias en términos de características morfológicas y composición corporal de los jugadores de VC Budva, VC Buducnost y VC Jedinstvo. La muestra de 43 sujetos se dividió en tres submuestras, la submuestra de las asignaturas consistió en 12 jugadores de VC Budva, los campeones de Montenegro 2018-19, la otra submuestra de 17 jugadores de VC Buducnost, el participante en la European CEV Challenge Cup 2018-19, y uno de los examinados, incluidos 14 jugadores de VC Jedinstvo, campeones de Montenegro en la temporada 2017-18. Las características morfológicas en la composición corporal se evaluaron mediante una batería de 11 variables: altura corporal, peso corporal, pliegue cutáneo del tríceps, pliegue cutáneo del bíceps, pliegue cutáneo de la espalda, pliegue abdominal, pliegue cutáneo de la pantorrilla, pliegue cutáneo del muslo, índice de masa corporal, porcentaje de grasa y masa muscular. . La diferencia entre los jugadores de los tres clubes de voleibol más exitosos en las características morfológicas y las variables para evaluar la composición corporal, se determinó mediante pruebas de ANOVA y LSD Post Hoc. La prueba ANOVA encontró diferencias estadísticamente significativas entre estos tres clubes, determinadas por seis variables que estiman los pliegues cutáneos, así como una variable de índice de masa corporal (IMC) estimado. La prueba LSD Post Hoc encontró que los jugadores de voleibol de VC Budva tienen valores significativamente más bajos con respecto al pliegue de tríceps, pliegue de bíceps, pliegue abdominal, pliegue de pantorrilla y pliegue de muslo, en comparación con los jugadores de VC Buducnost y VC Jedinstvo, mientras que en el caso de Las variables que evalúan el índice de masa corporal (IMC), los jugadores de voléibol de VC Buducnost tienen menos valores, en comparación con los jugadores de VC Budva y VC Jedinstvo.

Body composition differences between football players of the three top football clubs / Diferencias de composición corporal entre los jugadores de fútbol de los tres mejores clubes de fútbol

The aim of this research was to determine the differences among the football players of three the most successful football clubs in Kosovo, FC Trepca ´89, FC Prishtina and FC Besa Peje in a terms of morphological characteristics and body composition. A sample of 53 subjects was divided into three sub-samples. Fifteen (15) players of FC Trepca ´89 of the average age 21.80±3.57, the champions of Kosovo, twenty (20) players of FC Prishtina of the average age of 24.30±4.99, the vice champions of the Kosovo Championship, and eighteen (18) players of FC Besa Peje of the average age 21.83±3.17, the champions of the Cup of Kosovo. Football players were tested immediately after the end of the competition season. Morphological characteristics in the body composition were evaluated by a battery of 10 variables: body height, body weight, waist circumference, triceps skinfold, biceps skinfold, skinfold of the back, abdominal skinfold, body mass index, fat percentage and muscle mass. The significance of the differences between the players of the three the most successful football clubs in the morphological characteristics and variables for assessing body composition were determined by ANOVA and LSD post hoc test. ANOVA test found that the football players of the three mentioned clubs have statistically significant differences in one variable that estimate the waist circumference. The LSD Post Hoc test showed that football players of FC Besa Peje had significantly less value of waist circumference compared to the football players of FC Prishtina and FC Trepca ´89. The values of the waist circumference of all football players show that they belong to professional trained players, although their differences in this variable are statistically significant.

El objetivo de esta investigación fue determinar las diferencias entre los jugadores de fútbol de los tres clubes de mayor éxito en Kosovo, FC Trepca ´89, FC Prishtina y FC Besa Peje, en términos de características morfológicas y composición corporal. En el estudio se dividieron los 53 sujetos en tres grupos, quince (15) jugadores del FC Trepca ´89 con una edad promedio de 21,80 ± 3,57, los campeones de Kosovo, veinte (20) jugadores del FC Prishtina con una edad promedio de 24,30 ± 4,99, los vicecampeones del Campeonato de Kosovo, y dieciocho (18) jugadores del FC Besa Peje con una edad promedio de 21,83 ± 3,17, los campeones de la Copa de Kosovo. Los jugadores de fútbol fueron evaluados inmediatamente después del final de la temporada de competencias. Las características morfológicas en la composición corporal se evaluaron mediante una batería de 10 variables: altura corporal, peso corporal, circunferencia de la cintura, pliegue de tríceps, pliegue de bíceps, pliegue de la espalda, pliegue abdominal, índice de masa corporal, porcentaje de grasa y masa muscular. El ANOVA y el LSD post hoc determinaron la importancia de las diferencias entre los jugadores de los tres clubes de fútbol más exitosos en las características morfológicas y las variables para evaluar la composición corporal. La prueba de ANOVA encontró que los jugadores de fútbol de los tres clubes mencionados tienen diferencias estadísticamente significativas en una variable que estima la circunferencia de la cintura. La prueba LSD post hoc indicó que los jugadores de fútbol del FC Besa Peje tenían un valor significativamente menor de la circunferencia de la cintura en comparación con los jugadores de fútbol del FC Prishtina y el FC Trepca ´89. Los valores de circunferencia de la cintura de todos los jugadores de fútbol muestran que pertenecen a jugadores entrenados profesionalmente; las diferencias en esta variable son estadísticamente significativas.

Isolation and characterization of Pyricularia oryzae isolated from lowland rice in Sarawak, Malaysian Borneo

@#Aims: Rice blast disease caused by Pyricularia oryzae is one of the major biotic diseases of rice in Sarawak, Malaysian Borneo. This study aims to isolate and characterize rice blast fungus obtained from infected leaf collected from four different divisions in Sarawak, viz, Miri, Serian, Sri Aman, and Kuching. Methodology and results: Twelve succeeded isolates were pre-identified as P. oryzae by morphological characteristics of spores, followed by verification through (internal transcribed spacer) ITS sequencing. The isolates were evaluated for morphological characteristics, growth rate and sporulation rate, which were grown on two types of media, (filtered oatmeal agar) FOMA and (potato dextrose agar) PDA. Morphological characterization showed that the colony surface of the different isolates varied from smooth and fluffy to rough and flattened mycelia; some were with the present of concentric rings, and some with aerial mycelia. The growth rate and sporulation rate of each isolate varied based on types of media used. Most of the isolates grew faster on PDA than on FOMA but produced higher number of spores on FOMA as compared to PDA. Conclusion, significance and impact of study: This preliminary study showed that there were variations observed based on morphological and physiological characterization for the different isolates collected in Sarawak, Malaysian Borneo. This study is the first step towards understanding variation in the population of P. oryzae from Sarawak.

Morphological analysis of optimal selection of lumbar pedicle screws in adolescents aged 12-15 years / 中国组织工程研究

BACKGROUND: A large amount of literature has been published on the vertebral pedicle morphology at thoracolumbar segments in adults,but little is known about the morphology of pedicles in adolescents, especially in Asian populations. Adolescent spine disorders are increasing and there are few precise morphological studies. OBJECTIVE: To investigate the anatomy of lumbar vertebrae of adolescents aged 12-15 years in Inner Mongolia, provide detailed information for pedicle screw placement, determine the safe and appropriate screw size, and provide data reference for screw size design. METHODS: The normal chest and lumbar CT data of 65 adolescents aged 12-15 years in Inner Mongolia were collected and divided into two groups, 31 cases of 12-13 years old, and 34 cases of 14-15 years old. The raw data of the thoracic and lumbar vertebrae images scanned continuously were imported into Mimics 21.0 for analysis and measurement in DICOM format. Pedicle width, pedicle height, transverse diameter, longitudinal diameter, pedicle length, pedicle outer declination, pedicle maximum external angle, pedicle head inclination, and pedicle area were measured. RESULTS AND CONCLUSION: (1) The L1-L4 pedicle width in the two groups was less than pedicle height, and pedicle width and pedicle height at L5were similar. The pedicle width determined the screw diameter, which was larger in males than in females. (2) In 12-13 years old, the screw length at L1-L5 was between 40-45 mm. In 14-15 years old, the screw length was between 40-45 mm at L1-L4 , and 45-50 mm at L5 (3) The laws of the two groups were the same. The transverse diameter of spinal canal was significantly larger than longitudinal diameter of spinal canal (P<0.05), and there was no significant difference between men and women. (4) The transverse pedicle angle: In 12-13 years old L1-L2 had small change,L2-L5 gradually increased; in 14-15 years old, L1-L5 gradually increased; it is larger in males than in females in both groups. (5) Maximum transverse pedicle angle: The two groups had the same law. L1-L5 gradually increased, and decreased with age. There was no significant difference between left and right sides and sexes. There was significant difference among different ages (P<0.05). (6) The sagittal pedicle angle: The in 12-13 years old, 30-80; in 14-15 years old, 00-50. The value decreased with age, and there was significant difference between men and women in L3-L4 (P<0.05). (7) Pedicle area: The two groups had the same rules. L1-L5 gradually increased, and L4-L5 had a clear trend of change. (8) Analysis of pedicle parameters showed that the size of the screws in the lumbar vertebrae of normal adolescents was suitable for the clinician to grasp the anatomy of the lumbar spine and improve the accuracy of clinical operation.

Morphological traits in the head and face of Kazakh adults in Yili, Xinjiang / 中国组织工程研究

BACKGROUND: The Kazakhs mainly live in the Yili Kazakh Autonomous Prefecture in northwestern Xinjiang. About 80% of the Kazakhs live in the areas of Yili, Tacheng, and Altay. To fully understand the physical characteristics of Kazakhs, a viviperception and head and face measurements of Kazakhs at the age of 20 and 86 were performed in Gilgelang Township, Gongliu County, Xinjiang. OBJECTIVE: To grasp the morphological traits in the head and face of Kazakh adults in Xinjiang. METHODS: Thirty-one head-face indexes of 422 Kazakh adults (219 males and 203 females) from Jiergelang county, Xinjiang were investigated. Twelve physical indices of the head and face were calculated. RESULTS AND CONCLUSION: In the Kazakh group, the incidence of eye fold of the upper eyelid was 92.7%; the rate of mongoloid fold was 9.9%; the appearance rates of flat and vertical types was 6.6% and 93.4%, respectively; the appearance rates of convex, concave and straight nasal profiles were 7.8%, 36.5% and 55.7%, respectively; the appearance rates of oblique, vertical and horizontal nostril shapes were 69.5%, 20.8% and 9.7%, respectively; the appearance rates of the chin of straight type and convex type were 68.2% and 31.8%, respectively; the appearance rates of earlobe type and non-earlobe type were 96.7% and 3.3%, respectively; the appearance rates of forehead hairline and non-forehead hairline were 72% and 28%, respectively; the appearance rates of straight hair and curly hair were 99.1% and 0.9%, respectively. Most of Kazakh males have dolichocephaly and hyperdolichocephaly (81.7%, 52.5%), hypsicephaly (93.6%), aerocephaly (84%), hyrerleptorrhiny (98.2%), and hypercuryen (74%). Kazak females most have dolichocephaly and hyperdolichocephaly (76.4%, 55.7%), hypsicephaly (97%), aerocephaly (84%), hyrerleptorrhiny (98.2%), and hypercuryen (74%). The head-face characteristics of Kazak population belongs to the North Asian type of Mongoloid．.

Morphological analysis of optimal selection of lumbar pedicle screws in adolescents aged 12-15 years / 中国组织工程研究

BACKGROUND: A large amount of literature has been published on the vertebral pedicle morphology at thoracolumbar segments in adults, but little is known about the morphology of pedicles in adolescents, especially in Asian populations. Adolescent spine disorders are increasing and there are few precise morphological studies. OBJECTIVE: To investigate the anatomy of lumbar vertebrae of adolescents aged 12-15 years in Inner Mongolia, provide detailed information for pedicle screw placement, determine the safe and appropriate screw size, and provide data reference for screw size design. METHODS: The normal chest and lumbar CT data of 65 adolescents aged 12-15 years in Inner Mongolia were collected and divided into two groups, 31 cases of 12-13 years old, and 34 cases of 14-15 years old. The raw data of the thoracic and lumbar vertebrae images scanned continuously were imported into Mimics 21.0 for analysis and measurement in DICOM format. Pedicle width, pedicle height, transverse diameter, longitudinal diameter, pedicle length, pedicle outer declination, pedicle maximum external angle, pedicle head inclination, and pedicle area were measured. RESULTS AND CONCLUSION: (1) The L1-L4 pedicle width in the two groups was less than pedicle height, and pedicle width and pedicle height at L5 were similar. The pedicle width determined the screw diameter, which was larger in males than in females. (2) In 12-13 years old, the screw length at L1-L5 was between 40-45 mm. In 14-15 years old, the screw length was between 40-45 mm at L1-L4, and 45-50 mm at L5. (3) The laws of the two groups were the same. The transverse diameter of spinal canal was significantly larger than longitudinal diameter of spinal canal (P < 0.05), and there was no significant difference between men and women. (4) The transverse pedicle angle: In 12-13 years old, L1-L2 had small change, L2-L5 gradually increased; in 14-15 years old, L1-L5 gradually increased; it is larger in males than in females in both groups. (5) Maximum transverse pedicle angle: The two groups had the same law. L1-L5 gradually increased, and decreased with age. There was no significant difference between left and right sides and sexes. There was significant difference among different ages (P < 0.05). (6) The sagittal pedicle angle: The in 12-13 years old, 3°-8°; in 14-15 years old, 0°-5°. The value decreased with age, and there was significant difference between men and women in L3-L4 (P < 0.05). (7) Pedicle area: The two groups had the same rules. L1-L5 gradually increased, and L4-L5 had a clear trend of change. (8) Analysis of pedicle parameters showed that the size of the screws in the lumbar vertebrae of normal adolescents was suitable for the clinician to grasp the anatomy of the lumbar spine and improve the accuracy of clinical operation.