Meta-analysis of the efficacy of invisible orthodontic appliances for maxillary molar distalization in adult patients / 口腔疾病防治

Objective@#To evaluate the clinical efficacy of invisible orthodontic appliances without brackets for the distal movement of maxillary molars to improve the ability of orthodontists to predict treatment outcomes.@*Methods@#Web of Science, Cochrane Library, Embase, PubMed, Wanfang Database, CNKI Database, and VIP Database were searched for studies investigating the efficacy of invisible orthodontic appliances for distal movement of maxillary molars in adult patients and published from database inception to August 1, 2023. A total of three researchers screened the studies and evaluated their quality and conducted a meta-analysis of those that met quality standards.@*Results@#This study included 13 pre- and postcontrol trials with a total sample size of 281 patients. The meta-analysis revealed no significant differences in the sagittal or vertical parameters of the jawbone after treatment when compared with those before treatment (P>0.05). The displacement of the first molar was MD=-2.34, 95% CI (-2.83, -1.85); the displacement was MD=-0.95, 95% CI (-1.34, -0.56); and the inclination was MD=-2.51, 95% CI (-3.56, -1.46). There was a statistically significant difference in the change in sagittal, vertical, and axial tilt of the first molar before and after treatment. After treatment, the average adduction distance of the incisors was MD=-0.82, 95% CI (-1.54, -0.09), and the decrease in lip inclination was MD=-1.61, 95% CI (-2.86, -0.36); these values were significantly different from those before treatment (P<0.05).@*Conclusion@#Invisible orthodontic appliances can effectively move the upper molars in a distal direction and control the vertical position of the molars. When the molars move further away, there is some degree of compression and distal tilt movement, which is beneficial for patients with high angles. The sagittal movement of incisors is beneficial for improving the patient's profile.

Typodont model study on double keyhole loop in mandibular extraction space closure / 口腔疾病防治

Objective@#To analyze the impact of the activation mode on the results of space closure in the mandibular arch using a double keyhole loop (DKHL) with a typodont model and reverse engineering technique to provide guidance for clinical treatment. @*Methods@#Nine normal mandibular typodont models after leveling were randomly divided into 3 groups, which then underwent three types of DKHL activation for space closure. Each model was assessed at the initial stage and after the warm water bath, and the images were superimposed to measure the displacement of special crown and root mark points. All statistical analysis of the data was performed using SPSS 19.0@*Results@# After equal activation times, the root retraction of anterior teeth and the crown forward position of posterior teeth in groups activated at the distal loop (conditions 2 and 3) were much greater than those in the group activated horizontally (condition 1). Activation between mesial and distal loops (condition 3) induced significant anterior tooth intrusion, together with elongation and buccal inclination of posterior teeth. The displacement of mark points among the three conditions showed a statistically significant difference. @* Conclusion @# The movement of mandibular anterior and posterior teeth could be flexibly controlled through different DKHL activation modes, which should be chosen carefully according to individual conditions.

Educação e sensibilidade: o brincar e o se-movimentar da criança pequena na escola / Education and sensitivity: the play and move yourself the child in school / Educación y sensibilidad: el jugar y el "movimiento" del niño pequeño en la escuela

Este estudo teve como objetivo central investigar como o brincar e o se-movimentar são proporcionados no espaço escolar e de que maneira eles contribuem para a educação da sensibilidade da criança pequena. Foi desenvolvido um estudo de caso que envolveu duas escolas municipais da cidade de Capinzal, SC; uma localizada no interior do município e a outra na cidade. Foi selecionada uma turma de crianças entre 4 e 6 anos de idade em cada escola, que totalizaram 40 crianças. Constatou-se que o brincar e o se-movimentar nas escolas estudadas acontecem muitas vezes por intermédio do controle dos professores, sempre com o intuito de promover uma competição e de chegar a um resultado final. Portanto, nas escolas investigadas, o incentivo à construção de situações que possibilitem o desenvolvimento da sensibilidade recebe pouca importância, o que compromete significativamente a educação da sensibilidade dessas crianças e limita o poder de criação.

Thus, this study had as main objective to investigate about the ways as the play and the move yourself are proposed in the school environment and how they contribute for the sensibility education to the child. First, it was developed a theorical research about the subjets and the fundamental authors, that suply the base for the second part of the study. This other step was an empirical study that involved two municipal schools from the city of Capinzal, SC; one located in the countryside and the other one downtown. It was chosen a class of chuildren from 4 to 6 years old in each school, that totaling 40 children. Therefore, in the investigated schools, the stimulus to situations construction that enable the sensibility development receives little importance, what commits meaningly the sensibility education of these children and limits the creation' power.

Este estudio tuvo como objetivo central investigar cómo el juego y el movimiento se proporcionan en el espacio escolar y de qué manera contribuyen a la educación de la sensibilidad del niño pequeño. Se desarrolló un estudio de caso que involucró dos escuelas municipales de la ciudad de Capinzal, SC; una ubicada en el interior del municipio y la otra en la ciudad. Se seleccionó una clase de niños entre 4 y 6 años de edad en cada escuela, que totalizaron 40 niños. Se constató que el jugar y el mudanza en las escuelas estudiadas ocurren muchas veces por intermedio del control de los profesores, siempre con el propósito de promover una competición y de llegar a un resultado final. Por lo tanto, en las escuelas investigadas, el incentivo a la construcción de situaciones que posibiliten el desarrollo de la sensibilidad recibe poca importancia, lo que compromete significativamente la educación de la sensibilidad de esos niños y limita el poder de creación.

Effects of Remind-to-move Treatment on Functional Recovery after Stroke / 中国康复理论与实践

Objective To explore the effect of remind-to-move treatment on upper limb motor function,activities of daily living and participation in patients with subacute stroke. Methods From February,2016 to October,2017,45 patients with mild to medium upper limbs dysfunction after stroke were randomly assigned to control group(n=23)and experimental group(n=22).The control group accepted rou-tine occupational therapy,while the experimental group wore a wristwatch on the hemiplegic forearm to encour-age the predetermined training programs,for three weeks.They were measured with Fugl-Meyer Assessment-Up-per Extremity(FMA-UE),Function Independence Measurement(FIM),Motor Activity Log(MAL),and Stroke Impact Scale(SIS)before and after treatment. Results Both groups improved in part of the scores of three scales after treatment(P<0.05),and improved more in the experimental group than in the control group in scores of FMA-UE and FIM,and some sub-scores of MAL and SIS(t>1.183,P<0.05),with no significant difference in other indexes(P>0.05). Conclusion Remind-to-move treatment can promote the recovery of upper limb motor function,activities of daily living and participation in the patients with subacute stroke.

Genre analysis of English medical papers: a corpus-based study / 中华医学教育探索杂志

Objective To get to know the genre structure of clinical medical papers in English and to improve the reading and writing abilities of medical workers.Methods Fifteen clinical medical papers from New England Journal of Medicine,The Lancet,Journal of the American Medical Association and British Medical Journal were randomly selected and analyzed based on Swale's CARS model;with reference to the language clues,their moves and steps,as well as their language features,were recorded.Results There were 10 common moves-presenting background information,reviewing related research,announcing present research,clarifying study design,performing data analysis,reporting objective result,highlighting overall outcome,explaining main findings,indicating limitations,stating conclusions-in English clinical medical papers,and each move had its own steps and language features.Conclusion The English clinical medical paper has its common genre structures,and understanding their language features will help Chinese medical workers develop high-quality international academic exchanges.

Laborotary study of DanHong in improving the movement function after stroke / 局解手术学杂志

Objective To investigate Danhong in improving the movement function of reperfused rat after stroke. Methods Rats to make middle cerebral artery occlusion model,after 24 hours of reperfusion were divided into control group,high dose and low dose of Danhong groups and Venorruton group randomly. Rats in Control group were injected saline. High and low dose group were injected DanHong according to their weight,high dose as 14. 4 mg/kg,low dose as 3. 6 mg/kg. Venorruton group were injected Venorruton as 0. 04 g/kg. The infarcted square of rat brain was measured,the rats were tested with walking wood bar and two fore limb grasp strength. Results Rat infarcted squre in 24 hours and 3 days,control groups is the biggest,compared with others,there are statistically difference(P<0. 05). Score in each group of walking wood bar in 3rd days are (1. 30 ± 0. 91),(3. 78 ± 1. 72),(4. 18 ± 2. 05),(4. 63 ± 2. 45). Compared between control and other druge groups,there are statistically differnec(P<0. 05). There are statistically differences between control and other groups in two fore limb grasp testing(P<0. 05). Conclusion Danhong has the same effect which can improve the movement function to stroke rat as Venorruton.

Eco-etología básica del caracol rosa Strombus gigas (Mesogastropoda: Strombidae), en Xel-Há, Yucatán, Caribe mexicano / Basic eco-ethology of the queen conch, Strombus gigas (Mesogastropoda: Strombidae) in Xel-Há, Yucatán, Mexican Caribbean

The queen conch Strombus gigas is an important fishery in the Caribbean, whose populations are currently overexploited. Since the decade of 1980 there have been several studies on aquaculture, resource management and area rehabilitation. However, little is known about its behavior in a natural environment and the influence of environmental parameters. Monthly surveys, from January to November 2012 were conducted in in Xel Ha, to observe and quantify six behaviors of S. gigas: rest, feeding, movement, burying, copulation and spawning. The observations were made every hour from 8h to 17h by free diving through three transects with three replicates each. Each behavior was observed 90 times each month. Salinity, temperature and dissolved oxygen were registered at the bottom. We found the highest number of snails at rest in July and the lowest in March and September. Feeding and movements had a peak in August. Most buried in October and November. Copulation was first observed on March with a peak in June and July to October’s spawning. In daytime observations restingt had a peak at 8h; feeding and moving at 12 to 17h. Copulation and spawning did not have a clear pattern. Variations between months and hours (resting, feeding, moving and buried) were significant (p<0.05). Resting correlated with temperature and being buried with oxygen level (r=-0.5803; p=0.0536). Feeding and moving correlated with temperature and salinity. These results should be useful for the conservation, restoration and aquaculture programs. Rev. Biol. Trop. 62 (Suppl. 3): 215-222. Epub 2014 September 01.

El caracol rosa Strombus gigas tiene importancia pesquera en el Caribe, cuyas poblaciones se encuentran sobreexplotadas. Desde la década de 1980 se han desarrollado estudios de acuacultura, manejo del recurso y rehabilitación de áreas con la finalidad de proteger e incrementar sus poblaciones. Sin embargo, poco se sabe sobre el comportamiento del caracol rosa en su medio natural y la influencia de los parámetros ambientales. Mensualmente de enero a noviembre de 2012 en la caleta de Xel Há se observaron y cuantificaron seis comportamientos de S. gigas: reposo, alimentación, movimiento, cópula, enterrados y desove. Las observaciones se realizaron cada hora de 8h a 17h por medio de buceo libre en tres transectos con tres repeticiones cada uno. Cada comportamiento fue observado 90 veces cada mes. Se registraron datos de salinidad, temperatura y oxígeno disuelto en el fondo. El comportamiento anual de S. gigas presentó el mayor número de caracoles en reposo en julio. La alimentación y el movimiento tuvieron un máximo en agosto. La mayoría de caracoles enterrados se encontró en octubre y noviembre. La cópula comenzó a observarse en marzo con un máximo en junio y el desove de julio a octubre. En las observaciones diurnas e independientemente de los meses, el reposo tuvo un pico a las 8h, alimentación a las 12 y movimiento a las 17h. La cópula y el desove no presentaron un patrón en su comportamiento. Existieron variaciones significativas entre meses y horas (reposo, alimentación, movimiento y enterrado) (p<0.05). El reposo se correlacionó con la temperatura y los enterrados con el oxígeno (r=-0.5803; p=0.0536). La alimentación con temperatura, salinidad y oxígeno. El movimiento con temperatura y salinidad. Estos resultados son útiles para programas de conservación, restauración y cultivo de la especie.

Haemorheology analysis of Han population in plain returned from plateau / 国际检验医学杂志

Objective To analyze the haemorheological related index changes in Han population in plain who returned from plat-eau about 45 d .Methods Venous blood of Han popuktion whe returned from plateau about 45 d and who stay in plain was collected for haemorheological related index detection .Results In males of Han population who returned to plains from plateau had a re-markable rising in HCT ,erythrocyte rigidity index and the whole blood viscosity of low shear rate (P0 .05) .Conclusion In males ,the plateau re-turned to plains Han population after returned to plain about 45 d ,most indexes of blood rheology can recover to the level of the people who stay in plain .In females ,all indexes of blood rheology can recover to the level of people who stay in plain .

Development of all-direction move device for the leg support of lithotomy position surgical bed / 中国医学装备

Objective: To design a convenient and safe leg support of lithotomy position surgical bed. Methods:Put the gas spring in the device to lift and drop the leg support, instead of turning screw, And then use the new leg support in 80 lithotomy position surgeries. Results:The new device can be operated by one man, it is easy operating and labor saving. There was no leg slip occurred in 80 surgeries, operators all expressed satisfaction. Conclusion: This innovation patent solved the problem of toilsome operating and potential safety hazard, It worth widely use in the clinical.

STUDY ON REGULAR PATTERNS OF MOVE AND DIFFUSING OF ONCOMELANIA SNAILS IN RIVERS WITH CEMENT BANKS / 中国血吸虫病防治杂志

Objective To probe into regul ar patterns of move and diffusing of Oncomelania s nails in rivers with cement banks and determine the control strategy. [WT5 ”HZ]Methods The part of Sunan Canal from the estuary to Xin feng Railway Bridge was taken as the experimental zone. The revival of snail spo ts destroyed before the canal dredging, snail status on cement banks, snails on obstacles, floaters and ships in the rivers and floating snails were investigate d and compared with the situations before the dredging. Results Twelve destroyed snail spots were investigated and two of them presented snails, apart from the estuary 3.2 km and 4.3 km. The rate with sna il s on obstacles in frame in the rivers was 0, significantly lower than the 87% be fore the dredging(P