Soxllb regulates the migration and fate determination of Müller glia-derived progenitors during retina regeneration in zebrafish

The transcription factor Sox11 plays important roles in retinal neurogenesis during vertebrate eye development.However,its function in retina regeneration remains elusive.Here we report that Sox11 b,a zebrafish Sox11 homolog,regulates the migration and fate determination of Müller glia-derived progenitors(MGPCs)in an adult zebrafish model of mechanical retinal injury.Following a stab injury,the expression of Sox11 b was induced in proliferating MGPCs in the retina.Sox11 b knockdown did not affect MGPC formation at 4 days post-injury,although the nuclear morphology and subsequent radial migration of MGPCs were alte red.At 7 days post-injury,Sox11 b knockdown res ulted in an increased proportion of MGPCs in the inner retina and a decreased propo rtion of MGPCs in the outer nuclear layer,compared with controls.Furthermore,Sox11 b knockdown led to reduced photoreceptor regeneration,while it increased the numbe rs of newborn amacrines and retinal ganglion cells.Finally,quantitative polymerase chain reaction analysis revealed that Sox11 b regulated the expression of Notch signaling components in the retina,and Notch inhibition partially recapitulated the Sox11 b knockdown phenotype,indicating that Notch signaling functions downstream of Sox11 b.Our findings imply that Sox11 b plays key roles in MGPC migration and fate determination during retina regeneration in zebrafish,which may have critical im plications for future explorations of retinal repair in mammals.

Factors Determining the Postponement of Schedule Gyneaco-Obstetric Surgery at CHUMEFJE in Libreville (Gabon)

The study aimed to identify factors causing delays in scheduled gynaeco-obstetric surgeries at CHUMEFJE in Libreville from January 2019 to July 2020. Through a 16-month observational survey, it was found that out of 346 scheduled procedures, 128 (36.4%) were postponed. Organizational issues in the operating theatre were responsible for 80.3% of these delays, with 95.3% being preventable. To enhance efficiency, improvements in operating theatre organization are recommended.

Rapid determination of radon monitor＇s calibration factors

The monitors used to measure radon concentration must be calibrated,and the calibration factor of each measurement cycle should be determined.Thus,the determination time of calibration factors of NRL-Ⅱ radon monitors should be reduced.In this study,a method is proposed to determine the calibration factors of radon monitors rapidly.In the proposed method,the calibration factor is initially determined in the 60-min measurement cycle;the calibration factor is then identified in the other measurement cycle on the basis of the principle that the calibration factor of the same radon monitor in different measurement cycles is inversely proportional to the number of a particles produced by ^(218)Po decay in this cycle.Results demonstrate that the calculated calibration factor of the different measurement cycles is consistent with the experimental calibration factor.Therefore,this method is reliable and can be used to determine the calibration factor of radon monitors rapidly.

Rabies by Dog Bites in Benin: Determinants of Good Knowledge of the Rabies Risk among Subjects Exposed in the Plateau Department in 2023

Rabies, a viral zoonosis, is one of the neglected tropical diseases (NTDs) that mainly affects poor and vulnerable populations. Human rabies is endemic in Benin. Although listed among the notifiable diseases, it nevertheless remains a neglected and under-reported disease. The objective of this study was to investigate the determinants of knowledge of rabies risk among subjects exposed to human rabies by dog bites in the Plateau department of Benin. Methods: This was a cross-sectional study with an analytical aim which involved a sample of 900 people aged at least 18 years old chosen randomly and residing in the Plateau department for at least six months. A pre-tested and validated digital questionnaire served as a data collection tool. Data analysis was done with R 3.4.1 software. The prevalence ratio was used as a measure of association. The confidence threshold was set at 5%. We carried out a multiple logistic regression using the likelihood ratio (top-down approach) in order to identify the main factors which influenced the good knowledge of human rabies in the population of Plateau. Results: In the study population, 80.89% of the subjects surveyed lived in a rural area. The sex ratio (Male/Female) was 1.11. The average age of the subjects was 40.24 ± 14.52 years. The prevalence of dog bites was 4.11% (95% CI = [3.00;5.63]) or 37 subjects bitten. After evaluation of knowledge of rabies risk in the study population, the main factors which positively influenced good knowledge of human rabies were age (p linear trend 0.01), residence of the subject in the municipality of Pobè (ORa = 8.34;95% CI = 0.83 - 1.23;p < 0.01), individual dwelling (ORa = 17.95;95% CI = 13.12 - 49.58;p < 0. 01), educational level of at least secondary (ORa = 5.53;CI 95 = 3.06 - 10.15;p = 0.01), the existence of a veterinary center (ORa = 3.66;CI 95 = 1.07 - 12.43 p = 0.01) and knowledge of a dog bites victim (ORa = 6.55;95% CI = 2.73 - 8.25;p < 0.01). Conclusion: This population study confirms that human rabies remains a public health problem with a need to raise awareness among populations on good prevention practices against human rabies after a dog bite in the Plateau department. This could help to improve strategies surveillance for the control and eradication of human rabies through the implementation of the One Health approach.

Simultaneous Spectrophotometric Determination of Four Components including Acetaminophen by Taget Factor Analysis

UV Spectrophotometric Target Factor Analysis （TFA） was used for the simultaneous determination of four components （acetaminophen, guuaifenesin, caffeine, Chlorphenamine maleate） in cough syrup. The computer Frogram of TFA is based on VC＋＋ language. The difficulty of overlapping of absorption spectra of four compounds was overcome by this procedure. The experimental results show that the average recovery of each component is all in the range from 98.9% to 106.8% and each component obtains satisfactory results without any pre-separation.

Cardiovascular diseases in European ethnic minorities: Beyond the traditional cardiovascular risk factors

This editorial is intended to be a reflection on cardiovascular disease(CVD)burden in European ethnic minorities.In some European countries,ethnic minority realities,due to their recent appearance,are still to be studied in depth.The experience of several European countries,where the migration processes started earlier,even more than a century ago,can help by being an example.Many studies have shown that major differences in CVD burden exist not only between countries,but also within the same country when considering different social strata and ethnic groups.The CV risk factors underlying heart disease have been well established.Important epidemiological studies have helped us understand that the underlying causes of heart disease as well as the behaviors that can help prevent them are the same.We are now well aware that CVD should be treated by considering a holistic approach.This is why the social determinants(SDs)of health that may worsen the disease burden or that,vice versa,may improve the treatment,and even more significantly,the prognosis of a patient’s illness should be taken into consideration.For ethnic minority patients,this holistic,hermeneutic approach is of importance.Several SDs of health that influence CVDs have been identified but their relevance for the health of ethnic minorities has not yet been clearly defined.In some European countries,most ethnic minorities are largely also religious minorities.Only a few studies have evaluated the role of religion,which is an important SD that affects the probability of having CV risk factors and diseases.Adolescents,particularly those belonging to the second generation,seem to be the weak link.If we believe that these young people are really citizens of their country of birth,then a way of recognizing their belonging to the community starts from a will to better understand their condition,in order to assist them while they grow physically and mentally.Thinking about safeguarding the health of this population should be more than a health task,rather a goal of social justice.

Rationale of a Cross Sectional Analytic Study on Determinants of Recurrent Preeclampsia at University Clinics of Kinshasa (Democratic Republic of Congo) and at Victor Dupouy Hospital Center (France)

Research Background: Pre-eclampsia is one of main causes of materno-foetal mortality and morbidity worldwide, with a prevalence of 3% - 7%. Although considered a primiparous condition, it can nevertheless recur. Several factors appear to be associated with risk of recurrence of pre-eclampsia, such as the term of delivery of previous pregnancy, severity of disease, the existence of co-morbidities and the inter-genital space. Purpose: The aim of our study will be to analyse and identify in a population of pregnant women with a history of preeclampsia risk factors associated with occurrence of recurrent preeclampsia at University clinics of Kinshasa (Democratic Republic of Congo) and at Victor Dupouy Hospital Center (France). Methods: In this study, pregnant women with an history of preeclampsia who will give birth between November 2018 and October 2024 at University Clinics of Kinshasa (UCK) and Victor Dupouy Hospital Center (VDHC) will be included. This will be a cross-sectional analytical study, data from previous and subsequent pregnancies will be studied. Expected Result: The prevalence of recurrent preeclampsia in the study population will be determined. And we will highlight the factors that will determine the recurrence of preeclampsia by analysing the risk factors. Conclusion: Knowledge of the factors associated with recurrent preeclampsia could be an excellent tool for predicting and preventing the disease.

Changes and determining factors of crop evapotranspiration derived from satellite-based dual crop coefficients in North China Plain

Evaluating actual crop evapotranspiration(ET) variations and their determining factors under changing climates is crucial for agricultural irrigation management and crop productivity improvement in nonhumid regions.This study analyzed the spatiotemporal characteristics and detected the determining factors of ETfor winter wheat and summer maize rotation system from 2000 to 2017 in the North China Plain(NCP),by combining the FAO-56 dual crop coefficient approach with remotely sensed vegetation indices(VIs).The results indicated that daily air temperature increased in varying degrees while wind speed and sunshine hours decreased slightly during the growing season of winter wheat and summer maize over the study period.The trends of relative humidity and effective precipitation varied in crop growing seasons.Based on the validated relationship of dual crop coefficients and VIs,the estimated multi-year average ETof winter wheat(370.29±31.28 mm) was much higher than summer maize(281.85±20.14 mm),and the rotation cycle was 652.43±27.67 mm.Annual ETof winter wheat and the rotation cycle increased by 2.96 mm aand 1,77 mm a,respectively.However,the ETof summer maize decreased with distinct spatial variation.Spatially,winter wheat ETincreased significantly in the northeast NCP,covering the Beijing-Tianiin-Hebei areas.Meanwhile,significant increases in summer maize ETwere detected in the southwest NCP.The sensitivity and contribution analysis showed that ETof winter wheat and summer maize was positively sensitive to temperature,wind speed,and sunshine hours while negatively to relative humidity.Moreover,wind speed and sunshine hours contributed most to changes in ET(around 20%-40%).

Sex Determination Mechanisms in Fish

In fish,sex determination(SD) system shows high variation. The SD mechanisms include environmental and genetic regulation. The research on SD system and related genes in intensively studied fish species was reviewed. Although some genes have been described as sex-related,only DMRT1bY can be considered as a master sex determination gene and none of them has been utilized in aquaculture. The variation of fish SD system,the importance of sex-related genes in evolution research and the relations between environmental factors and sex-related genes were also discussed. The fish sex determination mechanism remains largely unknown. Further research needs to be done considering the significance of fish SD studies in basic and applied aspects.

Area under the curve of methotrexate and creatinine clearance are outcome - determining factors in primary CNS lymphomas

Although high-dose methotrexate(HD-MTX)is the most effective drug against primary CNS lymphomas(PCNSL),outcome-de-termining variables related to its administration schedule have not been defined.The impact on toxicity and outcome of the area under thecurve(AUC(MTX)),dose intensity(DI(MTX))and infusion rate(IR(MTX))of MTX and plsamatic creatinine clearance(CL(crea))was investigated in a retrospective series of 45 PCNSL patients treated with three different HD-MTX-basedcombinations.Anticon-vulsants were administered in 31 pts(69%).Age>60 years,anticonvulsant therapy,slow IR(MTX)(

Factors Determining Coyote (<i>Canis latrans</i>) Diets

Although studies have documented the potential for coyote (Canis latrans) food use to negatively affect wildlife populations and domesticated animals, they are often equivocal, possibly because most are of small spatial extent, and little is known of factors determining coyote diets. Our objectives were to quantify the diet and identify factors determining coyote food use, particularly game species and livestock, over a large spatial and temporal extent. Contents of gastrointestinal tracts were identified from 263 coyotes opportunistically obtained from hunters, trappers, and as road-kills throughout Florida, 2011-2015. We employed logistic regression in an information-theoretic framework to understand determinants of coyote food use. Coyotes were opportunistic and omnivorous foragers with a diverse diet of vegetation, insects, birds, reptiles, amphibians, and more than 25 species of mammals (including important game species and livestock). They commonly consumed 11 food items (Virginia opossum [Didelphis virginiana], non-mast vegetation, feral hog [Sus scrofa], northern raccoon [Procyon lotor], insects, rabbits (Sylvilagus spp.), skunks [Mephitis mephitis and Spilogale putorius], white-tailed deer (Odocoileus virginianus), mast, birds, and cows [Bos taurus]). Food use was determined by coyote age, sex, and body mass, season of the year, deer hunting and fawning seasons, livestock calving season, and coyote collection method and location/region. As coyotes expand their range and numbers, conservationists may find it useful to understand how this opportunistic and adaptable predator uses available food sources to reduce conflict across the landscape.

Cervix and breast cancers in Oujda city in Eastern Morocco: Determinants and risk factors

A retrospective study was conducted in 2008 on 681 in Eastern Morocco in order to estimate the incidence of cervical and breast cancer, and to determine the social determinants and risk factors associated with these two types of cancer. Another goal of the study was to give health decision makers evidence of the necessity for early diagnosis and treatment. A questionnaire was used before the clinical gynecological examination and sampling cell for the Pap smear. Any woman with a Pap smear suspect had to do a biopsy at the reference centre. Physicians, obstetricians and midwives in the consultation process did gynecological examination and breast palpation. Patients with a suspicious nodule underwent ultrasound and mammography by radiologists on site. Gynecological samples were carried out systematically to all ever-married women to detect cancer of the cervix. Software Excel and SPSS 17 were used for data processing. Patients with high social status were more susceptible to develop breast cancer whereas women with cervical cancer were poor, belonging to a class with a low marital status of widowed or divorced having been married at an early age. The majority of women were married (81%), poor (80%) and illiterate (66%). Breastfeeding women were less affected by breast cancer than women not breastfeeding. For cervical cancer, the difference was not statistically significant. Women using contraceptives were vulnerable to both breast and cervical cancer. For cervical cancer, over 15% of women with a family history were screened positive. No relationship was found between breast cancer and family history. Taking into account regional particularities, we stress the importance of social determinants and risk factors and show that our results are consistent with those published by other researchers. Breast and cervical cancers constitute a real challenge in Morocco. Their socioeconomic burden can be reduced by early detection and treatment. The delayed diagnosis complicates the task both in terms of survival and cost of treatment. Consequently, Moroccan health authorities are urged to adopt preventive and cost effective strategies.

Oral Health Determinants and Demographic Factors of Permanent Tooth Extraction in Iranian Adults

Preservation of teeth until old ages indicates oral health status. Improving life expectancy in developing countries makes teeth care an important topic. This study assessed reasons of tooth extraction (TE), oral health determinants and demographic factors of permanent TE in Iranian adults. Adult people who referred to dental clinic of Mashhad Medical University in 2012 for dental extraction and lived in Mashhad city, participated in this study by convenient sampling method after obtaining informed consent. Demographic characteristics, oral health status, health habit and reasons of TE of participants were assessed. Data were analyzed by SPSS11.5 by Chi-Square, T-Test, ANOVA, Mann-Whitney and Kruskall-Wallis tests. Totally 254 people participated (383 extracted teeth) that 55% were female. Mean age of participants was 39.3 years;females were 6.1 years younger than males. The main reason of TE was dental caries (55.1%), following by impaction. There was significant difference between average times of tooth brushing in both sexes, but difference was not shown in sugar intake. Except in people with college degrees that dental caries is the main cause of TE. With increase in life expectancy to more than 70 years old in Iranian, the age of TE especially in women is younger than expected. The most common cause of TE is dental caries that seem in spite of improving health indexes in Iran, poor oral hygiene remains as a problem. There is no significant difference between frequency of sugar intake and level of education that indicates unhealthy dietary habits related to tooth decay.

A Systematic Review Study on Prevalence, Determinants, and Risk Factors of HIV/AIDS among Pacific Countries

Introduction: The Human Immunodeficiency Virus (HIV) is known as the biggest public health challenge in both developed and developing countries. This systematic review study is carried out to assess the prevalence, determinants, and risk factors of HIV/AIDS in Pacific countries. Methods: This systematic review study applied Cochrane Library Guideline to search, review, apprise, and analyze the articles related to HIV/AIDS. Both qualitative and quantitative articles were published between 2000 to 2016, in English language and were published in databases such as MEDLINE/PubMed, CINAHL, ISI Web of Science, EBSCO, ProQuest, Springer and PyschInfo. A data extraction sheet was made and a descriptive statistic was applied to analyze the data. Results: Fifty-one studies met the study inclusion and exclusion criteria. The United States had the highest frequency of studies on HIV/AIDS (30 studies). The overall prevalence of HIV/AIDS among Pacific islanders was between 1 to 14 percent. The most common determinants of community-based studies were ethnicity and gender, while they were age and ethnicity in the school-based studies and age in the hospital-based studies. The highest risk factors for HIV were substance abuse, number of sexual partners and unprotected sex. Conclusion:The results of the study highlighted the main determinants and risk factors, which provide a framework for public health experts and program planners to focus on different aspects of HIV/AIDS. As HIV/AIDS is a culturally sensitive health issue, developing preventive strategies considering the factors determined in this study will be strongly advised.

FINITE ELEMENT METHOD COMBINED WITH DYNAMIC PHOTOELASTIC ANALYSIS TO DETERMINE DYNAMIC STRESS-INTENSITY FACTORS

The present paper is addressed to the finite element method combined with dynamic photoelastic analysis of propagating cracks, that is, on the basis of [1] by Chien Wei-zang, finite elements which incorporate the propagating crack-tip singularity intrinsic to two-dimensional elasticity are employed. THe relation between crack opening length and time step obtained from dynamic photoelaslie analysis is used as a definite condition for solving the dynamic equations and simulating the crack propagations as well As an example, the impact response of dynamie-bending-test specimen is investigated and the dynamic stress-intensity factor obtained from the mentioned finite element analysis and dynamic photoelasticity is in reasonable agreement with each other.

Genetic polymorphism of CYP2A6 is one of the potential factors determining tobacco-related cancer risk

While we studied pharmacokinetics of SM-12502 which was under development as an anti-PAF agent, we found three subjects showing a slow metabolic phenotype in its pharmacokinetics. Analyzing the genes for CYP2A6 from the three subjects, we discovered that the three subjects possessed the whole CYP2A6 gene deletion (CYP2A6*4C), a novel genetic polymorphism of the CYP2A6 gene. Genetically engineered Salmonella YG7108 cells expressing human CYP2A6 or CYP2E1 together with the NADPH-CYP reductase were established in our laboratory to compare the mutagen-producing capacity of these enzymes for various N-nitrosamines. We found that CYP2E1 was responsible for the metabolic activation of N-nitrosamines with relatively short alkyl chains, whereas CYP2A6 was involved in the metabolic activation of N-nitrosamines possessing relatively bulky alkyl chains such as a tobacco-specific nitrosamine, NNK, which has been known to cause lung tumor in rodents. Thus, to examine a hypothesis that individuals possessing the CYP2A6*4C have the reduced risk of lung cancer due to the lack of the capacity of the metabolic activation of certain carcinogens in tobacco smoke, a case-control study was performed.

Loan Strategies to Small and Medium Size Enterprises:An Analysis of Determining Factors of“Subsidiary Banks”in the Cameroonian Context

This paper proposes to present an overview of determining factors of the granting of loan to Small and Medium Size Enterprises(SMSE)by the subsidiaries of multinational banks in Cameroon.The analysis of the data collected following interviews with banking employees conducted in accordance with the method of thematic content analysis reveals that two categories of factors play a major role in the decision of the banker:parameters relating to the characteristics of the SMSE applying for a loan and elements specific to the context of study.The combination of these factors contributes to the reinforcement of the already transactional attitude of these subsidiary banks in the area of experimentation of the study.

运脾消食方提取工艺放大影响因素研究

目的考察运脾消食方提取工艺放大影响因素。方法HPLC法测定儿茶素、阿魏酸、花旗松素、异牡荆素、芸香柚皮苷、白术内酯Ⅱ、柚皮苷、桑色素、橙皮苷、木犀草素、常春藤皂苷元、白术内酯I、柚皮素、橙皮素的含量,建立指纹图谱,评价容器体积、火候、投料量对各成分含量的影响。结果15批样品指纹图谱相似度均大于0.995。14种成分在各自范围内线性关系良好(r>0.9990),平均加样回收率96.4%~103.3%,RSD 0.5%~2.7%。火候的影响程度大于提取容器体积、投料量。结论多成分含量测定结合指纹图谱可为运脾消食方提取工艺放大后一致性评价的共性技术提供数据基础和理论参考。

健康社会决定因素水平与脑卒中发病风险的关系——一项基于全国前瞻性队列的研究

目的:探讨健康社会决定因素(social determinants of health,SDOH)水平对脑卒中发病风险的影响,揭示不同SDOH水平地区人群脑卒中主要危险因素。方法:入选中国高血压调查2012~2015年采用分层多阶段随机抽样方法在全国14个省级行政区30个区县中抽取的30036名≥35岁的常驻居民,调查心血管疾病患病及相关危险因素情况,并于2018~2019年随访脑卒中事件。使用主成分分析依据社会经济和医疗资源相关9个指标构建SDOH得分,并根据其三分位数将研究对象分为三组:SDOH得分在≥-2.01~<-1.14分为低SDOH组(n=8343),≥-1.14~<0.10分为中SDOH组(n=7257),≥0.10~≤5.79分为高SDOH组(n=8457)。使用多因素Cox比例风险回归分析SDOH水平与脑卒中发病风险的关系。采用随机生存森林方法探究不同SDOH水平地区脑卒中的主要危险因素。结果:最终纳入24057名研究对象,平均随访(4.7±0.8)年期间,669例(2.8%)发生脑卒中。低、中和高SDOH组脑卒中的发病密度分别为468.39/10万人年、628.85/10万人年和700.39/10万人年(Pdifference<0.05,Ptrend=0.01)。与低SDOH组相比,中、高SDOH组发生脑卒中的HR(95%CI)分别为1.91(1.54~2.36)和1.59(1.30~1.95);随着SDOH水平升高,脑卒中发病风险呈现上升趋势(Ptrend<0.001)。高龄是人群脑卒中首要危险因素,特别是高SDOH水平地区。在中SDOH水平地区,糖尿病是脑卒中的重要的可改变危险因素。低SDOH水平地区,高血压和饮酒是重要的可改变危险因素。结论:脑卒中发病风险与高SDOH水平相关联;不同SDOH水平地区脑卒中的主要危险因素不同。建议通过实施有针对性的干预措施,提高不同SDOH地区人群脑卒中防治效果。