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1.
J Phys Condens Matter ; 36(29)2024 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-38588673

RESUMO

Here, we report the influence of Jahn-Teller active Cu substitution on the charge-ordering (CO) characteristics of one of the well-known manganite Pr0.45Sr0.55MnO3(S55) with a distorted tetragonal structure. Magnetization studies unveil a complex magnetic phase diagram for S55, showing distinct temperature ranges corresponding to various magnetic phases: a ferromagnetic phase dominated by the Double Exchange interaction withTC∼ 220.5 K, an antiferromagnetic phase belowTN∼ 207.6 K induced by CO with a transition temperature ofTCO∼ 210 K consistent with the specific heatCP(T) data, and a mixed phase in the rangeTNTN(T

2.
Mymensingh Med J ; 32(3): 823-832, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37391981

RESUMO

Following the COVID-19 pandemic, a growing percentage of COVID-19 survivors exhibit post-COVID symptoms. This cross-sectional study aimed to assess radiological findings in individuals having post-COVID respiratory problems. This study was conducted in the Departments of Radiology and Imaging and Internal Medicine, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from November 2021 to June 2022 and included 30 COVID survivors aged 40 to 65 years. We employed a pre-tested semi-structured questionnaire including socio-demographic information, clinical data and CT chest imaging parameters. Pearson's correlation coefficient was calculated, as well as multiple linear regressions. Among 30 participants, 56.0% were male. The mean age of the respondents was 51.20 years (standard deviation of 7.09), ranging from 40 to 65 years. Approximately one-third of the participants had at least one co-morbid condition where hypertension (26.67%), diabetes (26.67%), chronic interstitial lung disease (16.67%) and obesity (16.67%) were most commonly recorded. Approximately 20.0% of participants were smokers. The incident of at least one post-COVID symptom was 100.0%. Approximately 73.0% presented with post-COVID lethargy, 16.67% with SoB (Shortness of Breath), and 90.0% of participants complaint of self-reported anxiety. We have found a positive correlation between age and overall lung involvement. The most common lung tomographic findings were fibrosis (93.0%) and diffuse ground glass opacity (70.0%). Interstitial lung thickening was found in 50.0% of cases and bronchiectasis accounted for 16.67%. In 6.6% of cases, there was no pulmonary lesion. It was notifiable that, with time, the feature of DGGO (diffuse ground glass opacity) became subtle and the total lung involvement decreased from 75.0% to about 25.0% during the post-COVID period. Timely assessment for post-COVID pulmonary sequelae by high-resolution CT chest scan might play an important role in modulating a treatment plan for patients suffering from the post-COVID syndrome.


Assuntos
COVID-19 , Radiologia , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Bangladesh/epidemiologia , Estudos Transversais , Pandemias , COVID-19/complicações , COVID-19/diagnóstico por imagem , Dispneia/diagnóstico por imagem , Dispneia/epidemiologia , Dispneia/etiologia
3.
J Phys Condens Matter ; 35(37)2023 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-37267992

RESUMO

We report the mixed valence and intermediate spin-state (IS) transitions in Pr substituted LaCoO3perovskites in the form of bulk and nanostructures. Various compositions (x) of La1-xPrxCoO3(0 ⩽x⩽ 0.9) were synthesized using the sol-gel process under moderate heat treatment conditions (600 °C). The structural analysis of these compounds reveals a phase crossover from the monoclinic phase (space group, s.g.:I2/a) to an orthorhombic one (s.g.:Pbnm), and a rhombohedral phase (s.g.:R-3c) to an orthorhombic one (s.g.:Pnma) in the bulk and nanostructures, respectively, for the composition range 0 ⩽x⩽ 0.6. Such a structural transformation remarkably reduces the Jahn-Teller distortion factor ΔJT: 0.374 → 0.0016 signifying the dominant role of the IS state (SAvg= 1) of trivalent Co ions in the investigated system. Magnetization measurements reveal the ferromagnetic (FM) nature of bulk LaCoO3along with a weak antiferromagnetic (AFM) component coexisting with an FM component. This coexistence results in a weak loop-asymmetry (zero-field exchange-bias effect ∼134 Oe) at low temperatures. Here the FM ordering occurs due to the double-exchange interaction (JEX/kB∼ 11.25 K) between the tetravalent and trivalent Co ions. Significant decrease in the ordering temperatures was noticed in the nanostructures (TC∼ 50 K) as compared to the bulk counterpart (∼90 K) due to the finite size/surface effects in the pristine compound. However, the incorporation of Pr leads to the development of a strong AFM component (JEX/kB∼ 18.2 K) and enhances the ordering temperatures (∼145 K forx= 0.9) with negligible FM correlations in both bulk and nanostructures of LaPrCoO3due to the dominant super-exchange interaction: Co3+/4+‒O‒Co3+/4+. Further evidence of the incoherent mixture of low-spin (LS) and high-spin (HS) states comes from theM-Hmeasurements which yields a saturation magnetization ofMS∼ 275 emu mol-1(under the limit of 1/H→ 0) consistent with the theoretical value of 279 emu mol-1corresponding to the spin admixture: 65% LS + 10% IS of trivalent Co along with 25% of LS Co4+in the bulk pristine compound. A similar analysis yields: Co3+[30% LS + 20% IS] + Co4+[50% of LS] for the nanostructures of LaCoO3,yet the Pr substitution decreases the spin admixture configuration. The Kubelka-Munk analysis of the optical absorbance results in a significant decrease in the optical energy band gap (Eg:1.86 → 1.80 eV) with the incorporation of Pr in LaCoO3which corroborates the above results.

6.
Med J Armed Forces India ; 78(Suppl 1): S206-S212, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36147385

RESUMO

Background: Fixed dental prostheses have been provided in the Armed Forces for a long time, yet definite evidence-based guidelines on the success and failure of different types of prostheses are currently lacking. A cross-sectional observational study was conducted as a step towards addressing this lacuna. Methods: The study included 156 patients and 538 prostheses based on pre-established inclusion criteria. The types of prostheses that were evaluated included crowns, fixed partial dentures (FPDs), post and core restorations, dental implants and veneers. Visual, tactile and radiographic examination was used for evaluating the prostheses. Success, survival and failure of prostheses were evaluated, and the types of complications leading to the failure were also recorded. In addition, the oral hygiene status of the included patients was also evaluated using the Oral Hygiene Index-Simplified. Results: The overall failure rate in all prostheses combined together was 28.81%. The failure rate in cantilever FPDs was the highest at 44.44%. It was 16.67% in veneers, 35.37% in conventional FPDs, 23.81% in single crowns and 30.56% in all post and core restorations. Conclusion: Barring the all-ceramic prostheses and fibre post and core restorations, the rate of occurrence of both complications and failures in the remaining categories of prostheses was higher than that mentioned in the literature.

8.
Kathmandu Univ Med J (KUMJ) ; 19(74): 253-259, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34819446

RESUMO

Background Intake of excess salt can lead to high blood pressure a leading cause of cardiovascular diseases (CVDs). The behaviour risk factors for hypertension including high salt consumption, alcohol and tobacco use and physical inactivity; among them, salt intake reduction is one of the most cost-effective ways to control hypertension and CVD. Objective To find out the practice of salt intake control among rural and urban women of Tripura. Method This community based cross-sectional study was conducted among 400 housewives from rural and urban areas of Tripura, India for a period of ten months (June 2017-March 2018). A pre-tested, semi-structured interview schedule was used to collect required information regarding their socio-demographic, behavioural characteristics, family history and practice of salt intake control etc. The collected data was entered in SPSS version 16.0, represented in proportions and p<0.05 was considered as statistically significant. Result In present study, less than half of the participants (46% rural vs 41.5% urban) from both areas have good practice on control of salt intake. The mean control scores of rural and urban housewives were 9.7200±1.63246 and 9.4750±1.68927 respectively. Rural housewives had more control of extra salt intake in comparison to urban housewives but difference was not statistically significant (p>0.05). Majority Hindu housewives in rural areas had good control of salt intake than urban housewives (p<0.05). Conclusion The current study found less than half of the participants both in rural and urban areas have good control of dietary salt intake. This finding may provide an idea for development of intervention strategies aiming at increasing salt control-related awareness.


Assuntos
População Rural , Cloreto de Sódio na Dieta , Estudos Transversais , Feminino , Humanos , Índia , Fatores de Risco , População Urbana
9.
Mymensingh Med J ; 30(4): 1131-1138, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34605487

RESUMO

The objective of this study was to determine whether Magnetic Resonance Imaging is a sensitive and specific alternative method to clinical FIGO criteria in the staging of cervical carcinoma. This prospective cross-sectional study was conducted in the Department of Radiology and Imaging, BSMMU, Dhaka during the period of September 2018 to August 2020. A total of 60 patients were selected purposively and all are staged clinically by EUA. Then all samples underwent MRI in Department of Radiology and Imaging, BSMMU. Images of uterine cervix, corpus, vagina and parametrium were taken with a prefixed standard protocol (TIWI axial, T2WI axial and sagittal, DWI axial & DCE) and reporting was done by Radiologist. Comparison was done between the MRI and clinical FIGO criteria of staging of cervical carcinoma. P value <0.05 was considered as significant. Sensitivity & specificity of the MRI was measured. Data were analyzed by using Statistical Package for Social Sciences (SPSS) software version 23.0 for Windows (SPSS Inc., Chicago, Illinois, USA). Out of 60 patients in this study the mean age was found 47.5±10.1 years with range from 22 to 60 years. Positive correlation (r=0.993; p=0.001) between histopathological size and MRI size of tumour. Positive correlation (r=0.950; p=0.001) between histopathological size and FIGO size of tumour. MRI findings more correlates with histopathology than clinically detected tumor size. The sensitivity, specificity, accuracy, positive and negative predictive values of MRI diagnosis evaluation for vaginal extension was 100.00%, 95.20%, 100.00%, 98.30% and 97.50% respectively. Sensitivity, specificity, accuracy, positive and negative predictive values of MRI diagnosis evaluation for parametrial invasion was 100.00%, all. In this study we observed that MRI staging was more likely to be concordant with pathological stage in comparison to the clinical stage. There was a concordance rate of 95.00% in MRI and 65.00% in clinical staging respectively. Out of 3 non-concordant cases in MRI, 2 were upstaged and 1 case was down staged in histopathology. FIGO staging concurred with histopathology in 39(65.00%) cases and differed in 21(35.00%) cases. Magnetic resonance imaging (MRI) is a sensitive and specific modality for accurate staging of cervical carcinoma in comparison with clinical FIGO criteria considering histopathology as gold standard.


Assuntos
Carcinoma , Neoplasias do Colo do Útero , Adulto , Bangladesh , Estudos Transversais , Feminino , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Estudos Prospectivos , Neoplasias do Colo do Útero/diagnóstico por imagem , Adulto Jovem
10.
Mymensingh Med J ; 30(1): 182-188, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33397872

RESUMO

The objective of the study was to investigate and quantify the severity of COVID-19 infection by high resolution computed tomography (CT) of chest and to determine its relationship with clinical parameters. This study also aimed to see CT changes with clinical recovery or progression of disease. This cross sectional study was performed from July 20 to August 20, 2020, where both chest HRCT and clinical features were included in laboratory confirmed COVID-19, 100 patients, attending the depertment of Radiology & Imaging, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh. This study included clinical symptoms, comorbidities of patients, HRCT chest characteristics, CT severity score. After collection of all required data and careful medical chest review, the clinical data of laboratory confirmed patients was compiled and tabulated. In this study group out of 100 patients, most of the patients were in 5th & 6th dacades with a mean age of 53.7 years. In this study out of 100 patients 72% were male and 28% were female with an average sex ratio of male : female being 2.5:1. Prevalance of various clinical presentation in this study sample population distributed as fever in 76% cough in 77.4%, shortness of breath in 55%, sore throat in 17% were the most common clinical manifestations while a few patients (13.2%) also had other symptoms like headache, chest tightnes, anosmia and diarrhoea. Major comorbid conditions were diabets mellitus, hypertension, bronchial asthma and Chronic kidney disease (CKD). Patient with comorbid disease, especially if multiple had higher symptomatic presentation. Out of 100 patients 75.5% patient had co-morbidity where as 24.5% ptaients did not have any co-existing disease. According to HRCT imaging severity score the lung pathological changes were evaluated, when typical covid findings in 80%, intermediate in 10%, atypical in 2% and normal chest CT findings in 8% patients. Symptomatic presentation had found higher (85.21%) who had CT severity index >15/25 while sympotomatic presentation lesser (14.79%) who had CT severity index <15/25. CT severity index of 1-5 was seen in 20(21.73%) patients, 6-10 in 38(41.30%) patients, 11-15 in 22(23.91% patients, 16-20 in 10(10.86%) patients and 21-25 in 2(2.17%). As positive CT findings were more prominent in symptomatic and co-morbid patients HRCT chest in COVID-19 patient had a major diagnostic and prognostic importance. Clinical symptoms of patients directly correlated with CT severity score. Therefore, CT imaging was found to be useful in predicting clinical recovery of patient or progression of disease.


Assuntos
COVID-19 , Tomografia Computadorizada por Raios X , Bangladesh , COVID-19/diagnóstico por imagem , Teste para COVID-19 , Estudos Transversais , Feminino , Humanos , Pulmão , Masculino , Pessoa de Meia-Idade , SARS-CoV-2
11.
Sci Rep ; 10(1): 20097, 2020 11 18.
Artigo em Inglês | MEDLINE | ID: mdl-33208782

RESUMO

Large-area X-ray imaging is one of the most widely used imaging modalities that spans several scientific and technological fields. Currently, the direct X-ray conversion materials that are being commercially used for large-area (> 8 cm × 4 cm without tiling) flat panel applications, such as amorphous selenium (a-Se), have usable sensitivities of up to only 30 keV. Although there have been many promising candidates (such as polycrystalline HgI2 and CdTe), none of the semiconductors were able to assuage the requirement for high energy (> 40 keV) large-area X-ray imaging applications due to inadequate cost, manufacturability, and long-term performance metrics. In this study, we successfully demonstrate the potential of the hybrid Methylammonium lead iodide (MAPbI3) perovskite-based semiconductor detectors in satisfying all the requirements for its successful commercialization in synchrotron and medical imaging. This new generation of hybrid detectors demonstrates low dark current under electric fields needed for high sensitivity X-ray imaging applications. The detectors have a linear response to X-ray energy and applied bias, no polarization effects at a moderate bias, and signal stability over long usage durations. Also, these detectors have demonstrated a stable detection response under BNL's National Synchrotron Light Source II (NSLS-II) 70 keV monochromatic synchrotron beamline.


Assuntos
Compostos de Cálcio/química , Diagnóstico por Imagem/métodos , Desenho de Equipamento , Iodetos/química , Chumbo/química , Metilaminas/química , Óxidos/química , Síncrotrons/instrumentação , Titânio/química , Pontos Quânticos , Semicondutores , Raios X
12.
Mymensingh Med J ; 29(4): 964-968, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33116103

RESUMO

A cross sectional study was conducted to demonstrate the value of Computed Tomographic (CT) scan in clinically suspected 114 COVID-19 patients with emphasis on identifying and characterizing the most common findings of chest CT. The CT findings were compared and correlated with the results of Reverse Transcriptase Polymerase Chain Reaction for corona virus disease. This study was conducted in the Department of Radiology and Imaging, Bangabandhu Sheikh Mujib Medical University, Dhaka with clinically COVID-19 suspected patients. This cross sectional study was performed from July 7 to August 7, 2020 where both chest HRCT and RT-PCR test were included, keeping RT-PCR as the reference standard. Of the 114 patients 104(91.22%) patients had ground glass opacities (with no consolidation), 50(43.85%) patients had ground glass opacity and consolidation. Along with ground glass opacities 60(52.63%) patients had associated crazy paving appearance, 44(39.59%) patients had reverse halo sign, 76(66.66%) patients had vascular thickening and 60(52.63%) patients had fibrotic shadows. Most patients (94%) (98/104) had bilateral chest CT findings. Out of 114 patients, 96 (84%) patients had positive RT-PCR results and 18(15.7%) patients had negative RT-PCR results. Out of 96 RT-PCR positive patients, 90 patients had positive chest CT findings, where was 06 patients had negative CT findings. On the other hand, out of 18 RT-PCR negative patients, 14 patients had positive chest CT findings while 4 patients had negative chest CT findings. To conclude, chest CT imaging has high sensitivity for diagnosis of COVID-19, Data and analysis from our study suggests that chest CT ought to be considered for the COVID-19 as a primary diagnostic tool for early detection of COVID-19 patients where awaited RT-PCR results.


Assuntos
Infecções por Coronavirus , Coronavirus , Pandemias , Pneumonia Viral , Bangladesh , Betacoronavirus , COVID-19 , Teste para COVID-19 , Técnicas de Laboratório Clínico , Infecções por Coronavirus/diagnóstico , Estudos Transversais , Humanos , Reação em Cadeia da Polimerase Via Transcriptase Reversa , SARS-CoV-2 , Tomografia Computadorizada por Raios X
13.
J Appl Microbiol ; 129(3): 753-767, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32145053

RESUMO

AIMS: To examine the modulation of the interacting partners of the calcineurin (CaN)-NFAT pathway in T cells during Cryptococcus neoformans fungal infection and post-T11TS immunotherapy. METHODS AND RESULTS: Wistar rats were infected with C. neoformans and followed by immunotherapy with immune-potentiator T11TS. T cells were analysed by flow cytometry, immunoblotting and nuclear translocation study. The signalling proteins LCK, FYN, LAT, PLCγ1 and CaN in T cells were regulated by C. neoformans infection resulting in reduced nuclear translocation of NFAT and IL-2 expression. Following T11TS immunotherapy, the expressions of the above-mentioned proteins were boosted and thus resulting in the clearance of C. neoformans from lung and spleen. CONCLUSIONS: The precise mechanism of suppression of the T-cell function by C. neoformans is still unknown. Previously, we have shown that T11TS positively regulates the function of T cells to abrogate glioma and other immunosuppressive conditions. T11TS immunotherapy increased the expression of the above signalling partners of the CaN-NFAT pathway in T cells and improved nuclear retention of NFAT. As a result, an increased IL-2 expression leads to activation and proliferation of T cells. SIGNIFICANCE AND IMPACT OF THE STUDY: Our results demonstrate the role of T11TS in restoring the CaN-NFAT signalling pathway in T cells. It identifies T11TS as an immunotherapeutic agent with potential clinical outcomes to counteract C. neoformans infection.


Assuntos
Antígenos CD58/uso terapêutico , Calcineurina/metabolismo , Criptococose/terapia , Fatores de Transcrição NFATC/metabolismo , Linfócitos T/imunologia , Animais , Criptococose/imunologia , Criptococose/microbiologia , Cryptococcus neoformans/efeitos dos fármacos , Cryptococcus neoformans/imunologia , Imunoterapia/métodos , Interleucina-2/metabolismo , Ativação Linfocitária/efeitos dos fármacos , Ratos , Ratos Wistar , Ovinos , Transdução de Sinais/efeitos dos fármacos , Linfócitos T/metabolismo
14.
Behav Brain Res ; 382: 112485, 2020 03 16.
Artigo em Inglês | MEDLINE | ID: mdl-31958518

RESUMO

Behavioral and anatomical sex-related differences have been traditionally found in decision-making processes assessed by Iowa Gambling Task (IGT). So far, the administration of transcranial direct current stimulation (tDCS) over orbitofrontal regions has shown an enhancing effect over decision-making. However, it is unknown whether there is a sex-dependent effect of stimulation in decision-making, a key question considering previous differences between men and women in IGT and the influence of individual differences in tDCS. The present study examines, at first time, the interaction between sex and tDCS in decision-making. For that aim, in a first experimental phase, ninety-two healthy participants performed the IGT. In a second phase, sixty-one participants received 20 min of anodal or sham tDCS over the right orbitofrontal cortex (rOFC) in a single-session pre-post sham-controlled study. To support the focality of the montage, a Stop Signal Task (SST) was used as a control task and also a numerical simulation of current flow distribution was performed. According to literature, in the first phase, results showed that men outperformed women in the IGT. In the second phase, the stimulation varied the IGT performance according to a sex specific manner: anodal tDCS increased the IGT performance in women, while in men; the stimulation did not produce any effect. Results were mediated by sex-specific morphological differences. These results highlight the necessity to consider the interaction of sex with the effect of the stimulation in future tDCS protocols, specifically in future clinical studies.


Assuntos
Tomada de Decisões/fisiologia , Córtex Pré-Frontal/fisiologia , Assunção de Riscos , Caracteres Sexuais , Adulto , Animais , Feminino , Jogo de Azar , Humanos , Masculino , Modelos Neurológicos , Testes Neuropsicológicos , Estimulação Transcraniana por Corrente Contínua , Adulto Jovem
15.
Artigo em Inglês | MEDLINE | ID: mdl-34712102

RESUMO

The precise measurement of cosmic-ray antinuclei serves as an important means for identifying the nature of dark matter and other new astrophysical phenomena, and could be used with other cosmic-ray species to understand cosmic-ray production and propagation in the Galaxy. For instance, low-energy antideuterons would provide a "smoking gun" signature of dark matter annihilation or decay, essentially free of astrophysical background. Studies in recent years have emphasized that models for cosmic-ray antideuterons must be considered together with the abundant cosmic antiprotons and any potential observation of antihelium. Therefore, a second dedicated Antideuteron Workshop was organized at UCLA in March 2019, bringing together a community of theorists and experimentalists to review the status of current observations of cosmic-ray antinuclei, the theoretical work towards understanding these signatures, and the potential of upcoming measurements to illuminate ongoing controversies. This review aims to synthesize this recent work and present implications for the upcoming decade of antinuclei observations and searches. This includes discussion of a possible dark matter signature in the AMS-02 antiproton spectrum, the most recent limits from BESS Polar-II on the cosmic antideuteron flux, and reports of candidate antihelium events by AMS-02; recent collider and cosmic-ray measurements relevant for antinuclei production models; the state of cosmic-ray transport models in light of AMS-02 and Voyager data; and the prospects for upcoming experiments, such as GAPS. This provides a roadmap for progress on cosmic antinuclei signatures of dark matter in the coming years.

16.
Facts Views Vis Obgyn ; 11(1): 77-84, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31695860

RESUMO

BACKGROUND: Alternatives to improve treatment outcomes in poor responders are needed. For this we studied whether multiple (x3) Natural Modified (NM)-IVF(ICSI) cycles followed by an embryo transfer (ET) from the accumulated embryos can improve the treatment outcomes in poor responders. METHOD: A retrospective analysis was applied to a pool of participants qualifying as poor responders according to the Bologna criteria. This was performed over a 2-year IVF center database with a Study Group including women with a minimum of 3 cycles of NM-IVF (ICSI) and subsequent vitrified-thawed ET. As a control, 1 NM-IVF (ICSI) cycle with fresh ET was used. The primary outcome accounted was the livebirth rate (LBRs) following one ET; the secondary outcome was clinical pregnancy rates (CPRs), miscarriage and cycle cancellation rates. Comparisons were held over mean numbers by t-test, over median by Mann-Whitney, and categorical data were treated by Chi-square. RESULTS: The prognosis for livebirth in the study (n=125) and control (n=208) group was equally poor (mean age: 40.2 ± 3.0 vs 40.0 ± 3.3; median AMH: 2.1 vs 2.2 (pmol/L), AFC 4.0 vs 4.0). The LBR was significantly higher with the study protocol (30.6% vs 13.3%; p=0.002), particularly in women aged 35-39 years (31% vs 10.8%; p=0.05) and 40-44 years (26% vs 10.3%; p=0.02). Lower LBR in women aged ≥35 years in the control-group was mainly attributable to the higher miscarriage rate. With significantly more oocytes (mean: 6.5 ± 3.8 vs 2.0 ± 1.4; p <0.0001) and embryos available (mean: 3.6 ± 2.3 vs 0.9 ± 0.7; p<0.0001), only a minority ended up with no ET in the study-group (7.2% vs 35.6%; p<0.0001). None dropped-out while undergoing 3 cycles, whereas no patient opted for further attempts after one standalone cycle. CONCLUSION: Accumulation of embryos through 3 NM-IVF cycles before transfer improves livebirth rates and reduces the risk of lacking an embryo for transfer in poor responders aged ≥35 years.

17.
Phys Rev Lett ; 123(18): 181102, 2019 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-31763896

RESUMO

Precision measurements by the Alpha Magnetic Spectrometer (AMS) on the International Space Station of ^{3}He and ^{4}He fluxes are presented. The measurements are based on 100 million ^{4}He nuclei in the rigidity range from 2.1 to 21 GV and 18 million ^{3}He from 1.9 to 15 GV collected from May 2011 to November 2017. We observed that the ^{3}He and ^{4}He fluxes exhibit nearly identical variations with time. The relative magnitude of the variations decreases with increasing rigidity. The rigidity dependence of the ^{3}He/^{4}He flux ratio is measured for the first time. Below 4 GV, the ^{3}He/^{4}He flux ratio was found to have a significant long-term time dependence. Above 4 GV, the ^{3}He/^{4}He flux ratio was found to be time independent, and its rigidity dependence is well described by a single power law ∝R^{Δ} with Δ=-0.294±0.004. Unexpectedly, this value is in agreement with the B/O and B/C spectral indices at high energies.

18.
Mymensingh Med J ; 28(4): 914-919, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31599260

RESUMO

Allergic rhinitis is one of important risk factor for developing asthma and sometimes it appears before developing full-blown asthma in affected patients. This is a socially embarrassing condition for the patients. Current estimates are that allergy in one form or another affects some 30% or more of general population. Otolaryngologists may expect about 50% of patients encountered in their daily practice to have allergy as a major or at least a contributing cause of presenting problems. Allergy has been called "The great masquerader", because of its ability to mimic an immense variety of other conditions. Objective of the study is to determine the association of allergic rhinitis with asthma. This cross sectional study was conducted at Green Life Hospital, Dhaka, Bangladesh from January 2018 to July 2018. Ultimately 250 interested patients were enrolled in the study. 50.8% of the participants were male and 49.2% were female. Among the 250 allergic rhinitis patients 92% presented with nasal discharge, 64.8% presented with nasal blockade, 84% presented with bouts of sneezing, 27.6% presented with hyposmia, 8.8% presented with Ocular redness, 48.8% presented with headache, 18.0% presented with epistaxis. Among them 43.2% patients were previously diagnosed as asthma by competent physicians; 39.2% patients had previous history of breathlessness that relieved with asthma medication in last 12 months. At least more than one symptom like wheeze, shortness of breath, chest tightness and cough in last 12 months were experienced by 51.6% patients. Among the 250 patients 51.2% had Rhonchi on chest examination, 54.8% had some form of shortness of breath, 43.2% had chest tightness, 59.6% had dry cough during the time of history taking & physical examination. The current study found strong association between allergic rhinitis and asthma.


Assuntos
Asma/epidemiologia , Rinite Alérgica/epidemiologia , Bangladesh/epidemiologia , Estudos Transversais , Feminino , Humanos , Masculino , Rinite , Fatores de Risco
19.
Mult Scler J Exp Transl Clin ; 5(2): 2055217319849721, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31236283

RESUMO

BACKGROUND: In White populations more than 60% of clinically isolated syndrome (CIS) convert to multiple sclerosis (MS) on a long-term follow-up; several predictors for conversion have been identified. OBJECTIVE: This study aimed to determine the conversion rate and the predictors of conversion from CIS to MS (McDonald 2010) among Indians. The other objective was to evaluate the diagnostic accuracy of the new McDonald 2017 criteria in prediction of a second clinical attack. METHODS: Clinical and demographic data of CIS cohorts were collected. Baseline investigations included cerebrospinal magnetic resonance imaging (MRI) with contrast and cerebrospinal fluid (CSF) testing for oligoclonal band (OCB). Follow-up clinical and MRI examinations were performed annually for at least 24 months. RESULTS: Of the 82 subjects (age range 15-58 years), 36 (43.9%) converted to MS; 31/82 (37.8%) converted in 24 months. The predictors for conversion were earlier age of onset, CSF-OCB, cerebral MRI T2 lesion count, and periventricular and juxtacortical location of lesions. Twenty-two (26.83%) CIS fulfilled the McDonald MS 2017 criteria at baseline. CONCLUSION: In this first prospective study of CIS in India, the risk factors for conversion are similar but the conversion rate to MS is lower than that in the western nations.

20.
Health Aff (Millwood) ; 38(5): 101377hlthaff201805233, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-31017490

RESUMO

As people age and require more assistance with daily living and health needs, a range of housing and care options is available. Over the past four decades the market for seniors housing and care-including assisted living and independent living communities-has greatly expanded to accommodate people with more complex needs. These settings provide housing in a community environment that often includes personal care assistance services. Unfortunately, these settings are often out of the financial reach of many of this country's eight million middle-income seniors (those ages seventy-five and older). The private seniors housing industry has generally focused on higher-income people instead. We project that by 2029 there will be 14.4 million middle-income seniors, 60 percent of whom will have mobility limitations and 20 percent of whom will have high health care and functional needs. While many of these seniors will likely need the level of care provided in seniors housing, we project that 54 percent of seniors will not have sufficient financial resources to pay for it. This gap suggests a role for public policy and the private sector in meeting future long-term care and housing needs for middle-income seniors.


Assuntos
Acessibilidade aos Serviços de Saúde/economia , Habitação/economia , Classe Social , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Demografia , Feminino , Necessidades e Demandas de Serviços de Saúde , Nível de Saúde , Humanos , Estudos Longitudinais , Masculino
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