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1.
Children (Basel) ; 10(9)2023 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-37761510

RESUMO

(1) Background: The study's purpose was to explore the knowledge, perceptions, and confidence of mothers about infant care to reduce the risk of sudden unexpected infant death. (2) Methods: A purposeful sampling method was used to recruit 15 first-time mothers from Georgia with infants under 1 year of age. The researchers utilized the Socio-ecological model to report the results. Participants also provided recommendations on how to improve infant care and reduce the risk of SUID. (3) Results: The confidence level of infant care among most participants was low but increased over time. Mothers' knowledge level about the prevention of SUID was high, but poor emotional health could hurt their parental abilities. Most participants recognized medical providers as the main source of reliable information. However, a lack of emotional and physical support was reported by mothers. (4) Conclusions: Results suggested that a more holistic approach to infant care is needed. The healthcare system and communities should provide more physical, social, and mental support to first-time mothers, a consolidated approach to care before and after birth, and easy access to services at all stages of the process to reduce the risk of SUID.

2.
Health Promot Pract ; 24(1_suppl): 128S-139S, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36419257

RESUMO

Barriers to breastfeeding for Black mothers are well documented in the literature. Local context is crucial for understanding and addressing barriers. Our research used the photovoice method to amplify the voices of Black mothers in Chatham County, Georgia. Guided by the sociol-ecological model, this photovoice project explored and identified the social, cultural, and physical barriers to breastfeeding that the mothers experienced. Two additional themes emerged through data analysis: personal comfort with public breastfeeding and the women's recommendations for breastfeeding support and normalization. Lack of physical spaces, lack of peer and family support, the need to overcome the stigma associated with breastfeeding, and advocating for more lactation spaces were commonly stated by the participants. These results led to the creation of a policy toolkit, a breastfeeding policy template, a proclamation to make the City of Savannah a Breastfeeding Family Friendly Community, an online photobook to share the experiences of the mothers, and additional paths of dialogue to increase inclusivity and expand health equity within Chatham County.


Assuntos
Aleitamento Materno , Confiança , Feminino , Humanos , Georgia , Grupos Focais , Apoio Social , Mães
3.
Mater Today Bio ; 12: 100131, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34622194

RESUMO

Recent advancement in nanotechnology seeks exploration of new techniques for improvement in the molecular, chemical, and biological properties of nanoparticles. In this study, carbon modification of octahedral-shaped magnetic nanoparticles (MNPs) was done using two-step chemical processes with sucrose as a carbon source for improvement in their electrochemical application and higher molecular biocompatibility. X-ray diffraction analysis and electron microscopy confirmed the alteration in single-phase octahedral morphology and carbon attachment in Fe3O4 structure. The magnetization saturation and BET surface area for Fe3O4, Fe3O4/C, and α-Fe2O3/C were measured as 90, 86, and 27 emu/g and 16, 56, and 89 m2/g with an average pore size less than 7 nm. Cyclic voltammogram and galvanostatic charge/discharge studies showed the highest specific capacitance of carbon-modified Fe3O4 and α-Fe2O3 as 213 F/g and 192 F/g. The in vivo biological effect of altered physicochemical properties of Fe3O4 and α-Fe2O3 was assessed at the cellular and molecular level with embryonic zebrafish. Mechanistic in vivo toxicity analysis showed a reduction in oxidative stress in carbon-modified α-Fe2O3 exposed zebrafish embryos compared to Fe3O4 due to despaired influential atomic interaction with sod1 protein along with significant less morphological abnormalities and apoptosis. The study provided insight into improving the characteristic of MNPs for electrochemical application and higher biological biocompatibility.

4.
Mymensingh Med J ; 30(3): 738-743, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34226463

RESUMO

Superficial fungal infection or dermatophytosis is one of the most common dermatological problems in a tropical country like Bangladesh. For last 4-5 years this skin problem is on rise with increase in cases of recalcitrant, recurrent and chronic dermatophytosis. In place of an easy task to treat dermatophytosis recently it has evolved into difficult to treat by traditional antifungal agents. Meanwhile, voriconazole, primarily appeared as an agent for deep fungal infections, has come out as a new promising systemic antifungal drug for dermatophytosis also. In Bangladesh recently an endeavor has been made to treat superficial fungal infection with voriconazole. Two hundred and ninety four patients suffering from recalcitrant, recurrent, resistant and chronic dermatophytosis between 12 and 70 years of age and both sexes were selected for the study between August 2018 and November 2018 from different parts of the country. Two categories of therapy were designed: Group A - 200mg 12 hourly for 14 days and Group B - 200mg 12 hourly for 28 days. Patients showing full response in 2 weeks were declared apparently cured and were kept under follow up. Those who did not show significant response (less than 50% improvement) in 2 weeks were considered failed. Unresponsive cases after 28 days were considered failed. Both groups were followed up for 4 weeks. Cases not showing any activity of the disease and negative microscopy on two occasions at 2 weeks interval were considered cured. Two hundred and fifty patients completed the study. Incidence of cure rate was more in Group B (93.04%) which is statistically significant (p<0.005). Relapse rate was observed more in Group A (22.83%). Visual side effects were 4.4% while vertigo and headache were observed in 12.0% and 10.8% respectably. Voriconazole is a promising treatment option for recurrent, recalcitrant and chronic dermatophytosis in dosage of 200mg twice daily for at least 4 weeks with negligible side effects. More diversified studies with longer follow up period is required for further opinion to establish an authenticated dosage schedule for treatment of superficial fungal infection.


Assuntos
Antifúngicos , Antifúngicos/uso terapêutico , Bangladesh/epidemiologia , Doença Crônica , Feminino , Humanos , Incidência , Masculino , Recidiva
5.
Nat Med ; 26(12): 1835-1838, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32989313

RESUMO

Access to healthcare is a requirement for human well-being that is constrained, in part, by the allocation of healthcare resources relative to the geographically dispersed human population1-3. Quantifying access to care globally is challenging due to the absence of a comprehensive database of healthcare facilities. We harness major data collection efforts underway by OpenStreetMap, Google Maps and academic researchers to compile the most complete collection of facility locations to date. Leveraging the geographically variable strengths of our facility datasets, we use an established methodology4 to characterize travel time to healthcare facilities in unprecedented detail. We produce maps of travel time with and without access to motorized transport, thus characterizing travel time to healthcare for populations distributed across the wealth spectrum. We find that just 8.9% of the global population (646 million people) cannot reach healthcare within one hour if they have access to motorized transport, and that 43.3% (3.16 billion people) cannot reach a healthcare facility by foot within one hour. Our maps highlight an additional vulnerability faced by poorer individuals in remote areas and can help to estimate whether individuals will seek healthcare when it is needed, as well as providing an evidence base for efficiently distributing limited healthcare and transportation resources to underserved populations both now and in the future.


Assuntos
Acessibilidade aos Serviços de Saúde , Aceitação pelo Paciente de Cuidados de Saúde , Humanos , Fatores de Tempo , Viagem , Populações Vulneráveis
6.
Mymensingh Med J ; 29(2): 351-356, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32506089

RESUMO

Pityriasis versicolor (PV) also known as tinea versicolor, which is chronic and superficial fungal skin disease caused by Malassezia yeasts. A permanent cure may difficult to achieve and this may explain the long-term nature of the disease. Consequently, a preventive treatment regimen may help to prevent the recurrence of pityriasis versicolor. Whether, the recurrence of tinea versicolor could be prevented by monthly itraconazole treatment regimen after a short course of itraconazole therapy. Open treatment followed by a randomized, single blind placebo control trial. Multi-center trial was characterized by an open, active treatment phase with itraconazole followed by a randomized placebo controlled treatment for prevention of recurrence. A total 200 patients (150 male and 50 female) were included in this study and was given 200mg itraconazole daily for 7 days (treatment phase). Patients in whom tinea versicolor was mycologically cured divided into Group A and Group B. Active open treatment was followed by preventive itraconazole treatment 200mg twice daily in Group A and placebo in Group B monthly for 6 consecutive months. The patients were diagnosed clinically and confirmed by Wood's lamp examination and KOH microscopy. Clinical improvement in 90%, negative Wood's lamp examination in 86.5% and Mycological cure in 85.5% were found at the end of open treatment. The mycological cure, 171 subjects were taken into this study for preventive treatment phase and divided into two groups- Group A & Group B. Preventive treatment was given in Group A and placebo in Group B. After the preventive treatment, the end point (After 6 months), clinical improvement, negative Wood's lamp examination and mycological cure were found in 81(90%), 76(84.4%) and 75(83.3%) in Group A and 44(55%), 41(51.3%) and 42(52.5%) in Group B respectively. In preventive treatment phase, 1 patient in Group A did not complete the study. No patient experienced any serious adverse effects. Prevention of recurrence of Pityriasis versicolor with itraconazole is as effective as treatment.


Assuntos
Itraconazol , Tinha Versicolor/tratamento farmacológico , Antifúngicos/uso terapêutico , Feminino , Seguimentos , Humanos , Masculino , Método Simples-Cego
7.
Mymensingh Med J ; 29(2): 414-419, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32506098

RESUMO

Urticaria is a common clinical condition that gives a major concern for physicians and patients alike. Urticaria is referred to as chronic when wheals occur daily or almost daily for a period of at least six weeks. The primary purpose of this study is to find out the efficacy of fexofenadine in the treatment of chronic idiopathic urticaria patients among the Bangladeshi population. This quasi-experimental study was performed in the Department of Dermatology & Venereology, Shaheed Ziaur Rahman Medical College Hospital, Bogura, Bangladesh from July 2013 to December 2013. Total 100 patients of chronic idiopathic urticaria aged 18 years and above with exclusion and inclusion criteria were selected. Then they were given fexofenadine 120mg twice daily for the treatment of chronic idiopathic urticaria for four weeks. A semi quantitative rating scales were used for the assessment of therapeutic efficacy before and after treatment. Data were collected in a pre-designed questionnaire by face-to-face interview and analyzed by the help of SPSS. Among the 100 respondents after one week of treatment, 8.0% had complete disappearance of symptoms, 10.0% had marked improvement, 40.0% had moderate improvement and 42.0% had slight improvement. After two weeks of treatment 35.0% had complete disappearance of symptoms, 13.0% had marked improvement, 12.0% had moderate improvement and 40.0% had slight improvement. After three weeks of treatment 40.0% had complete disappearance of symptoms, 13.0% had marked improvement, 35.0% had moderate improvement and 12.0% had slight improvement. After four weeks of treatment 42.0% had complete disappearance of symptoms, 24.0% had marked improvement, 26.0% had moderate improvement and 8.0% had slight improvement. The study concluded that fexofenadine is very effective in the treatment of chronic idiopathic urtecaria.


Assuntos
Urticária Crônica , Urticária , Adolescente , Bangladesh , Doença Crônica , Método Duplo-Cego , Humanos , Terfenadina/análogos & derivados , Resultado do Tratamento
8.
Public Health ; 182: 56-63, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32179289

RESUMO

OBJECTIVE: We aimed to quantify the extent to which country-level trends in HIV incidence in Sub-Saharan Africa (SSA) were influenced by gender inequalities, measured by gender gaps in educational attainment, income, and a Gender Inequality Index (GII). STUDY DESIGN: We examined the relation between gender inequality and HIV incidence using country-level panel data from 24 SSA countries for the period between 2000 and 2016. METHODS: Our goal was to estimate the relation between within-country changes in gender inequality and HIV incidence. We compared results from fixed effects and random effects models for estimating the effect of gender inequalities on changes in HIV incidence. Based on the results of the Hausman test, the fixed effects model was selected as the preferred approach. RESULTS: HIV incidence decreased by nearly one-half over the period from 2000 to 2016. We estimated that a one percent increase in the GII was associated with a 1.6 percent increase in HIV incidence (95% confidence interval = [0.21%; 3.00%]), after adjusting by country-level socio-economic and governance variables. CONCLUSIONS: Our study suggests that addressing gender inequalities is a potential strategy to reduce HIV incidence in the SSA region. To control HIV infection, policymakers and public health practitioners should support relevant interventions for promoting gender equality. Further work is needed to identify specific interventions to improve gender inequality and to examine their impacts on changes in HIV incidence.


Assuntos
Infecções por HIV/epidemiologia , Disparidades nos Níveis de Saúde , Adolescente , Adulto , África Subsaariana/epidemiologia , Feminino , Humanos , Incidência , Renda , Masculino , Pessoa de Meia-Idade , Saúde Pública , Fatores Sexuais , Fatores Socioeconômicos , Adulto Jovem
9.
Mymensingh Med J ; 29(1): 66-72, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31915338

RESUMO

Various forms of sexual dysfunction occur in men with diabetes mellitus (DM) including disorders of libido, ejaculatory problems, and erectile dysfunction (ED). This cross sectional study was conducted in a tertiary hospital of Bangladesh from December 2017 to May 2018 to find out the frequency and risk factors of ED in subjects with type 2 DM (T2DM). One hundred fifty (150) consecutive male patients with T2DM attending the Endocrinology outpatient department (OPD) of the hospital during the study period were evaluated for the presence of ED by using the International Index of Erectile Function-5 (IIEF-5) questionnaire; their socio-demographic, anthropometric, and clinical data were also recorded. Glycemic status was assessed by measurement of fasting plasma glucose (FPG) and HbA1c. Morning serum testosterone was measured in all. Among 150 subjects 68(45.3%) had ED; ED was mild in 14.7%, mild to moderate in 18.0%, moderate in 6.0% whereas severe ED was present in 6.7% of the subjects. The subjects with ED had higher mean age, longer duration of DM, higher body mass index (BMI), higher HbA1c, higher FPG, higher serum creatinine, and lower serum testosterone level than those without ED. Study subjects in the higher age group and higher duration of DM had higher frequencies of ED. IIEF-5 score showed significant negative correlation with age, duration of DM, HbA1c, fasting plasma glucose, serum creatinine and significant positive correlation with serum testosterone. In logistic regression analysis, duration of DM and serum testosterone were found be independent predictors of ED. Frequency of ED among Bangladeshi type 2 diabetic males is high; duration of DM and serum testosterone are independent predictors of ED in them.


Assuntos
Diabetes Mellitus Tipo 2/complicações , Disfunção Erétil/epidemiologia , Adulto , Distribuição por Idade , Bangladesh/epidemiologia , Glicemia/análise , Índice de Massa Corporal , Estudos Transversais , Diabetes Mellitus Tipo 2/epidemiologia , Disfunção Erétil/etiologia , Hemoglobinas Glicadas/análise , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/epidemiologia , Prevalência , Fatores de Risco , Testosterona/sangue
10.
J Am Coll Health ; 68(7): 698-703, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-31063036

RESUMO

Objective: The purpose of this study was to understand what influences health behaviors in Black female students at a Historically Black College and University (HBCU).Participants and Methods: Twenty-five Black female students enrolled at a HBCU in the southern United States participated in five focus groups and one interview. Qualitative analysis was used to analyze data for similar themes and codes.Results: The three areas that appear to influence health behaviors are interpersonal, community, and society.Conclusions: These findings highlight the need for HBCUs to develop health programs for Black women on their campus that include elements of interpersonal support. Additionally, HBCUs need to work on how they create an environment that provides their female students with the resources they need to be able to live a healthy life.


Assuntos
Negro ou Afro-Americano/psicologia , Comportamentos Relacionados com a Saúde/etnologia , Estudantes/psicologia , Universidades , Adolescente , Feminino , Humanos , Entrevistas como Assunto , Pesquisa Qualitativa , Fatores Socioeconômicos , Estados Unidos , Saúde da Mulher , Adulto Jovem
11.
Artigo em Inglês | MEDLINE | ID: mdl-31753523

RESUMO

Preeclampsia is a pregnancy complication, associated with an increased risk of maternal and neonatal morbidity and mortality. The etiology of preeclampsia is not yet fully understood, although the current literature indicates an up regulation of inflammatory mediators. Vitamin D is known to have anti-inflammatory properties and influence vascular function. Fatty acids are also known to regulate inflammation in pregnancy. This study was carried out to explore the association of maternal vitamin D and fatty acids in pregnancy. The present study includes 69 normotensive control (NC) and 50 women with preeclampsia (PE). Maternal and cord serum 25-hydroxyvitamin D [25(OH)D] levels were lower (p<0.01for both) in women with PE compared to NC women. Maternal plasma total polyunsaturated fatty acids (PUFA) levels were lower (p<0.05) while levels of total saturated fatty acids (SFA) and total monounsaturated fatty acids (MUFA) were higher (p<0.05 for both) in women with PE. Cord erythrocyte PUFA levels were higher (p<0.01) in PE women. Maternal 25(OH)D levels were negatively associated with maternal systolic and diastolic BP (p<0.01 for both). Maternal 25(OH)D levels were positively associated with maternal total PUFA (p<0.01) and negatively associated with maternal total SFA (p<0.05), total MUFA (p<0.01). This study for the first time demonstrates an association of maternal vitamin D with fatty acid levels in pregnancy. Our results suggest that vitamin D and fatty acids may work in concert to regulate fetal growth.


Assuntos
Ácidos Graxos Monoinsaturados/sangue , Sangue Fetal/química , Pré-Eclâmpsia/sangue , Vitamina D/análogos & derivados , Adolescente , Adulto , Estudos de Casos e Controles , Estudos Transversais , Eritrócitos/química , Feminino , Homocisteína/sangue , Humanos , Recém-Nascido , Gravidez , Vitamina D/sangue , Adulto Jovem
12.
Mymensingh Med J ; 28(4): 894-899, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31599257

RESUMO

Psoriasis, a chronic inflammatory disease is associated with a long list of comorbidities. In our practice we like to draw attention in comorbidities of psoriatic arthritis and we are adapted with cardiovascular comorbidities. A great deal remains unknown about psoriasis associated comorbidities. An understanding of these comorbidity patterns can help us to ensure better care of patients with psoriasis. Objective of the study was to find out the comorbid conditions in the patients of psoriasis. This observational case control study was conducted 150 diagnosed cases of psoriasis and 150 age matched healthy control. Purposively 150 patients of psoriasis were selected from the Dermatology OPD of Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from January 2017 to December 2018 as case. After a complete physical examination, a pre-designed structured questionnaire was fulfilled with patients and controls. To detect unknown comorbidities the following tests was done in both groups and compared: Blood sugar, urine routine and microscopic examination, serum creatinine, serum AST, ALT, GGT, and ALP levels measured by an enzymatic method, X-ray chest view, USG of whole abdomen/KUB. The diagnosed comorbidity was listed and referred for treatment accordingly. Charlson-age comorbidity index chart was used to estimate risk of mortality in two groups. The mean age of incident psoriasis was 38.64 years. Diabetes mellitus (4.67%), hypertension (4%), ischemic heart disease (IHD) (3.33%) were the top three comorbidities in patients with psoriasis. among them 11(7.33%) patients of psoriasis was with single comorbidity and 5(3.33%) of them was with multiple comorbidity. In control group 3(2%) participants was detected with comorbidity and that difference was significant statistically. In current study Charlson-Age Comorbidity index (CACI) was used as a tool to estimate the risk of mortality in two groups. The mean CACI score was 2.5 and 1 in two groups respectively and the difference was significant (p<0.05). The estimated risk of death (ERRD) score was calculated form CACI chart and the score was 2.78 and 1.47 in two groups respectively. There was no significant difference in two groups (p>0.05). The rate of occurrence of comorbidity was more in psoriasis group than in control. The listed comorbidity was in mild severity range but the risk of mortality was same in psoriasis group and control.


Assuntos
Psoríase/epidemiologia , Adulto , Artrite Psoriásica , Bangladesh/epidemiologia , Estudos de Casos e Controles , Comorbidade , Humanos
13.
J Community Health ; 44(5): 982-987, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31054143

RESUMO

The purpose of this study was to understand the influence Black college women have on the health behaviors of Black men. Using the Health Belief Model and the socioecological model as guides, focus groups and interviews were conducted with Black college men (n = 35) and Black college females (n = 25) at a Historically Black College and University in the Southern United States. Participants provided responses to questions on what impacts their health behaviors and whose health they influence. Results indicate that Black college men believed Black peer women influence decisions they make regarding their diet, physical activity, and general health behaviors. However, Black college women believe they only influenced physical activity and sexual health in Black college men. While they understood they had some influence on their health, the women were unsure if they had long-term influence. These findings highlight the need for programming that informs young Black women on the important role they play in the health of men in their lives, particularly young Black men. These findings also highlight the need for peer health educator training to cross-train educators on health issues of all gender groups.


Assuntos
Negro ou Afro-Americano/psicologia , Comportamentos Relacionados com a Saúde , Influência dos Pares , Feminino , Grupos Focais , Humanos , Relações Interpessoais , Masculino , Homens/psicologia , Estados Unidos , Universidades , Mulheres/psicologia
14.
Artigo em Inglês | MEDLINE | ID: mdl-30553405

RESUMO

Reports indicate that maternal vitamin D deficiency may be associated with increased inflammation. Long chain polyunsaturated fatty acids (LCPUFAs); omega-3 and omega-6 fatty acids are known to have anti-inflammatory and pro-inflammatory properties respectively. The present study examines the effect of vitamin D deficiency on fatty acid composition and metabolism in a rat model. Female Wistar rats were randomly divided into two groups (n = 8/group) as follows; control and vitamin D deficient (VDD). Diets (control: 1000 IU D3/kg diet; VDD: 0 IU D3/kg diet) were given from weaning and continued throughout pregnancy. Pregnant female rats were dissected on gestational day 20 to collect blood, liver and placenta. The VDD diet reduced maternal serum 25-hydroxyviatmin D3 levels (p < 0.001) as compared to control. Maternal vitamin D deficiency resulted in lower total weight gain and placental weight (p < 0.05 for both) during pregnancy. Animals from VDD group demonstrated higher arachidonic acid (AA) levels in both the liver and plasma (p < 0.05 for both) as compared to control. Liver, plasma and placental monounsaturated fatty acid levels (MUFA) were lower (p < 0.01 for all) while plasma total saturated fatty acids (SFA) (p = 0.05) were higher in the VDD group. Animals from the VDD group demonstrated lower ∆9-desaturase activity index (p < 0.01 for all) in the liver, plasma and placenta. The plasma ∆5-desaturase activity index (p < 0.05) was higher although no change was observed in the ∆6-desaturase activity index. However, the mRNA levels of liver ∆6-desaturase was lower (p < 0.05) in the VDD group. Our findings indicate that maternal vitamin D deficiency influences fatty acid desaturase activity and expression and therefore alters maternal fatty acid metabolism.


Assuntos
Ácidos Graxos Dessaturases/genética , Ácidos Graxos Dessaturases/metabolismo , Ácidos Graxos Ômega-3/metabolismo , Ácidos Graxos Ômega-6/metabolismo , Metabolismo dos Lipídeos/fisiologia , Fenômenos Fisiológicos da Nutrição Materna , Deficiência de Vitamina D , Animais , Calcifediol/sangue , Dieta , Eritrócitos/metabolismo , Feminino , Ganho de Peso na Gestação , Fígado/metabolismo , Placenta/metabolismo , Gravidez , Ratos , Ratos Wistar , Reprodução
15.
Water Res ; 140: 387-402, 2018 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-29754044

RESUMO

Multivariate statistical analysis was applied to investigate the dependencies and underlying patterns between N2O emissions and online operational variables (dissolved oxygen and nitrogen component concentrations, temperature and influent flow-rate) during biological nitrogen removal from wastewater. The system under study was a full-scale reactor, for which hourly sensor data were available. The 15-month long monitoring campaign was divided into 10 sub-periods based on the profile of N2O emissions, using Binary Segmentation. The dependencies between operating variables and N2O emissions fluctuated according to Spearman's rank correlation. The correlation between N2O emissions and nitrite concentrations ranged between 0.51 and 0.78. Correlation >0.7 between N2O emissions and nitrate concentrations was observed at sub-periods with average temperature lower than 12 °C. Hierarchical k-means clustering and principal component analysis linked N2O emission peaks with precipitation events and ammonium concentrations higher than 2 mg/L, especially in sub-periods characterized by low N2O fluxes. Additionally, the highest ranges of measured N2O fluxes belonged to clusters corresponding with NO3-N concentration less than 1 mg/L in the upstream plug-flow reactor (middle of oxic zone), indicating slow nitrification rates. The results showed that the range of N2O emissions partially depends on the prior behavior of the system. The principal component analysis validated the findings from the clustering analysis and showed that ammonium, nitrate, nitrite and temperature explained a considerable percentage of the variance in the system for the majority of the sub-periods. The applied statistical methods, linked the different ranges of emissions with the system variables, provided insights on the effect of operating conditions on N2O emissions in each sub-period and can be integrated into N2O emissions data processing at wastewater treatment plants.


Assuntos
Óxido Nitroso/análise , Eliminação de Resíduos Líquidos/métodos , Compostos de Amônio/análise , Compostos de Amônio/metabolismo , Reatores Biológicos , Análise Multivariada , Nitratos/análise , Nitratos/metabolismo , Nitrificação , Nitritos/análise , Nitritos/metabolismo , Nitrogênio/análise , Nitrogênio/metabolismo , Oxigênio/análise , Oxigênio/metabolismo , Temperatura , Eliminação de Resíduos Líquidos/instrumentação , Eliminação de Resíduos Líquidos/estatística & dados numéricos , Águas Residuárias/química
16.
Mymensingh Med J ; 27(1): 41-45, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29459590

RESUMO

Microscopic examination of skin and mucous membrane is an established investigation in diagnosis and follow up of many dermatological conditions frequently encountered during practice. Histopathological examination is performed with biopsied specimen from skin and or mucous membrane where required. However neither do all skin biopsies produce neither a conclusive diagnosis nor the dermatologists routinely perform this procedure to every patient they consult. This cross sectional descriptive study conducted by reviewing the records of all biopsied cases studied for histopathology in Mymensingh Medical College, Mymensingh and Shaheed Mansur Ali Medical College, Dhaka, Bangladesh from January 2012 to December 2016. The aim of this study was to investigate the favourable clinical diagnoses set by dermatologists when performing skin biopsy, the diagnoses reached by the dermatopathologists after microscopic examination, and the relationship between them and finally to comment on the instances that skin biopsy fails to fulfill the diagnostic task. Fourteen hundred and thirty six (1436) cases of skin biopsy were reviewed and descriptive statistics were performed. Maximum cases 39.1% (562) were in 2nd decade with almost equal sex distribution. The most frequently proposed clinical diagnoses included papulosquamous dermatoses 28.6% (410), whereas histological confirmation was in 13.1% (188). Histological diagnosis was more as nonspecific dermatitis 31.6% (454). After microscopic examination, a specific histological diagnosis was found in 83.5% (1199) of the cases and a consensus between clinical and histological diagnoses was observed in 69.2% (994). Neither histological diagnosis nor any feature consistent with clinical suspicion was observed in 10.1% (145) cases. Histopathological examination of skin biopsy is still a valuable diagnostic tool in many skin diseases and dermatoses with diagnostic dilemma. There are cases in which diagnostic inefficiency are being faced even after skin biopsy examination.


Assuntos
Dermatopatias , Bangladesh , Biópsia , Estudos Transversais , Humanos , Pele , Dermatopatias/diagnóstico , Dermatopatias/patologia
17.
Mymensingh Med J ; 27(1): 52-56, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29459592

RESUMO

Tinea corporis & cruris are one of the earliest known fungal infection and are very common throughout the world. Although tinea corporis and tinea cruris does not cause mortality but causes morbidity and poses a major health problem. This study was conducted to evaluate the Comparative Efficacy of Terbinafine and Fluconazole in the Treatment of Tinea corporis and Tinea cruris. This cross sectional comparative type of analytical study was carried out at the department of Pharmacology & Therapeutics with collaboration of Dermatology and Venereology in Mymensingh Medical College Hospital, Mymensingh, Bangladesh from January 2016 to December 2016. In this study 168 newly diagnosed Tinea corporis and Tinea cruris patient was purposively selected where pattern of comparative efficacy of terbinafine and fluconazole were analyzed. Among 168 patients most of the patients presented with tinea corporis (58.33%). Most patients belong to 21-30 years age group. Male female ratio in this study was 1.15:1. In this study 143 patients were treated by fluconazole 50mg once daily for 4 weeks and 25 patients were treated by terbinafine 250 mg once daily for 4 weeks. After 4 weeks, improvement rate by fluconazole was 86.02% and terbinafine 96.00%. The clinical score of both groups after 4th week of treatment, there was slight more reduction of clinical score in terbinafine using group than fluconazole using group. The difference between these two clinical score was not statistically significant (p>0.05). Although no significant difference was observed between these two groups of patient in clinical aspect, but due to its lower price and availability in the hospital, it is suggested that fluconazole is more suitable for the treatment of tinea corporis and tinea cruris.


Assuntos
Antifúngicos , Tinha , Adulto , Antifúngicos/uso terapêutico , Bangladesh , Estudos Transversais , Feminino , Humanos , Masculino , Pacientes Ambulatoriais , Tinha/tratamento farmacológico , Adulto Jovem
18.
Mymensingh Med J ; 26(1): 21-28, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-28260751

RESUMO

Sexually transmitted diseases (STDs) are increasing alarmingly with time among the young-adults in Bangladesh. The objective of the study was to investigate Sexual lifestyle, Risk Factors and Socioeconomic Status of the STD Patients. A total of 205 STD patients were selected following convenient method of sampling consistent with defined selection criteria from outpatient department of Skin and Venereal Disease of Mymensingh Medical College Hospital, Mymensingh. Period of data collection was from July 2014 to June 2015. The research instrument was an interviewer questionnaire and laboratory investigation reports. Results showed that the mean age of the respondents was 27±5.9 years of which 104(50.7%) unmarried and 95(46.3%) married. Level of education, 168(82.0%) of the STD patients were literate. Occupation of the STD patients, 201(98.0%) had specific occupation of which 74(36.1%) were businessmen, 48(23.4%) student, 24(11.7%) technical jobs, 20(9.8%) day labourer, 15(7.3%) household workers, 14(6.8%) service holders and 6(2.9%) were transport workers. Their average monthly income was Tk. 7892±6763. Majority of the STD patients 115((56.1%) expressed that they enjoyed extra-marital sex or illegal sex out of curiosity, 32(15.6%) habitual, 24(11.7%) to test sexual performance, 18(8.8%) inadequate response of the legal sex partners, 8(3.9%) hyper-sexuality and 8(3.9%) family disharmony. Most of the patients 200(97.6%) were heterosexual of which 165(80.5%) visited 1-10 sex partners, 18(8.8%) 11-20 sex partners and 22(10.7%) visited 21-100 sex partners in lifetime. In category of sex partners, 60(29.3%) were hotel-based sex partners, 111(54.1%) brothel-based, 20(9.8%) friends sex partners, 10(4.9%) street sex sellers and 4(2.0%) were residential sex partners respectively. Of them, 132(64.4%) did not use condom during sex, 65(31.7%) use it occasionally and only 8(3.9%) use condom regularly. Most of them 170((82.8%) had been suffering from gonococcal urethritis, 19(9.3%) non-gonococcal urethritis, 12(5.9%) genital herpes, and rest other specific infections. STDs were significantly (p<0.05) associated with category of sex partners and use of condom. Altering sexual lifestyle is still the only applicable way to stop this human catastrophe.


Assuntos
Comportamento Sexual , Infecções Sexualmente Transmissíveis , Classe Social , Adulto , Bangladesh/epidemiologia , Humanos , Estilo de Vida , Fatores de Risco , Infecções Sexualmente Transmissíveis/epidemiologia , Fatores Socioeconômicos , Adulto Jovem
19.
Mymensingh Med J ; 25(4): 620-627, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27941720

RESUMO

Vitiligo is an acquired pigmentary skin disorder which is disfiguring and difficult to treat. Cure and response rates for vitiligo are significantly lower. This study was conducted to evaluate the effectiveness of topical corticosteroid, topical calcineurin inhibitors (tacrolimus) and combination of them in the treatment of vitilligo in two tertiary care Hospital, in the Department of Dermatology and Venereology OPD (out patient department) in Mymensingh Medical College Hospital and Jahurul Islam Medical College Hospital, Bajitpur, Kishoregonj from January 2015 to December 2015. Newly diagnosed 112 vitiligo patients, aged more than 1 year to 70 years were assigned for therapy and to observe the response. This study indicates that, in case of vitiligo treatment topical tacrolimus was the most effective drug. Topical tacrolimus, topical corticosteroid and combination of them are to be effective in the treatment of vitiligo with reduction in the number of vitiliginous spots by increased repigmentation. But topical tacrolimus was the most effective drug, as it caused highest percentage of repigmentation of vitiliginous spot.


Assuntos
Vitiligo , Administração Tópica , Adolescente , Adulto , Idoso , Animais , Inibidores de Calcineurina , Criança , Pré-Escolar , Fármacos Dermatológicos , Humanos , Lactente , Pessoa de Meia-Idade , Tacrolimo , Resultado do Tratamento , Adulto Jovem
20.
Opt Express ; 24(6): 6041-51, 2016 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-27136798

RESUMO

The spatial and the angular variants of the Imbert-Federov (IF) beam shifts and the angular Goos-Hänchen (GH) shift contribute in a complex interrelated way to the resultant beam shift in partial reflection at planar dielectric interfaces. Here, we show that the two variants of the IF effects can be decoupled and separately observed by weak value amplification and subsequent conversion of spatial ↔angular nature of the beam shifts using appropriate pre and post selection of polarization states. Such optimized weak measurement schemes also enable one to nullify one effect (either the GH or the IF) and exclusively observe the other. We experimentally demonstrate this and illustrate various other intriguing manifestations of optimized weak measurements in elliptical and / or linear polarization basis. We also present a Poincare sphere based analysis on conversion / retention of the angular or spatial nature of the shifts with pre and post selection of states in weak measurement. The demonstrated ability to amplify, controllably decouple or combine the beam shifts via weak measurements may prove to be valuable for understanding the different physical contributions of the effects and for their applications in sensing and precision metrology.

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