bluuebunny/crossref_metadata_2025 huggingface dataset:
Fluorescence Recovery After Photobleaching in Ultrathin Polymer Films
Authors: Prakash Praneet , Pahal Suman , Varma Manoj
Published: October 2017

Fluorescence recovery after photobleaching (FRAP) is a widely used technique to study transport of molecules in biological systems. Recently, FRAP has been used to study molecular transport in polyelectrolyte multilayers (PEMs). Through numerical simulations verified by experiments, we show that the FRAP behaviour of PEM films in an aqueous medium differs significantly from that in previously explored systems such as single cells. This is because fluorescence recovery can take place through the aqueous medium surrounding the PEM film. Our simulations show the critical role of the time scale of the different processes namely, diffusion through PEM, diffusion through surrounding medium and the unbinding rate of fluorophore labelled species in the interpretation of FRAP data. An important conclusion from our numerical and experimental study is that, for ultrathin PEM films ~ 100 nm thicknesses, recovery is dominated through solution medium and hence, classical FRAP analysis is not sufficient to probe diffusion in PEM. Our numerical study reveals several aspect of FRAP phenomena in thin polymer films which are critical for the proper interpretation of experimental data.
Contribuição para a história da profissão contabilística em Portugal
Authors: Gonçalves Miguel
Published: October 2017

O trabalho introduz na historiografia contabilística o nome de um agente português que ajudou a disseminar as partidas dobradas em Portugal e divulga, comentando criticamente, a versão manuscrita original daquele que se crê ser o primeiro diploma de curso de um guarda-livros português. O profissional em questão, Felix Potier (1741-1790), um português nascido em Lisboa, filho de um negociante francês aí radicado, formou-se em 1763, mas apenas em 1771 terá requerido o seu diploma de curso. Potier foi um dos primeiros 61 alunos da Aula do Comércio, escola de contabilidade fundada em 1759 em Lisboa por Sebastião José de Carvalho e Melo, mais conhecido pelo seu título nobiliárquico de Marquês de Pombal (1770). Dos 61 alunos matriculados aquando da inauguração da escola, apenas 31 terão pedido à Junta do Comércio o seu diploma de conclusão de curso. E, tudo assim o indica, apenas uma dessas cartas de curso certificadoras das habilitações literárias obtidas na Aula do Comércio sobreviveu à inexorável passagem do tempo; aquela que este artigo intenta mostrar à comunidade, datada de 10 de janeiro de 1771, emitida pela Junta do Comércio, a instituição governamental a quem cabia a incumbência de gerir a escola. Potier iniciou o seu percurso profissional no Erário Régio (1763-1767) e depois, em 1767, começou a sua atividade no Colégio Real dos Nobres, instituição na qual foi o responsável pela contabilidade durante mais de 20 anos. As conclusões apoiam-se em fontes primárias de investigação, em legislação e em recursos secundários. O artigo contribui para a literatura com informação que permite um novo verbete no Dicionário de Professores e Alunos das Aulas de Comércio (1974), compêndio de Francisco Santana, cuja atualização se julga muito útil para a história da contabilidade lusófona. O estudo adiciona, bem assim, outros novos elementos ao conhecimento em geral e ao conhecimento da história da contabilidade, em particular, designadamente informação relacionada com a formação escolar de Francisco Bento Maria Targini, tesoureiro-mor do Erário Régio, organização pública estabelecida no Brasil em 1808 pelo Príncipe Regente D. João (futuro Rei D. João VI).
Contabilidad nobiliaria
Authors: Granado Suárez Sonia , Calvo Cruz Mercedes , Castro Pérez Candelaria
Published: October 2017

Resulta ampliamente aceptado entre los historiadores que la nobleza jugó un significativo papel en el desarrollo económico de nuestro país durante el denominado Antiguo Régimen (siglos XVI al XVIII). Estos privilegiados gozaban de poder político y prestigio social, quedando bajo su propiedad buena parte de la tierra cultivable. A pesar de su importancia económica, la investigación histórica en Contabilidad nobiliaria española resulta escasa. De ahí que diversos autores hayan realizado llamamientos sobre la falta de conocimiento respecto a los sistemas contables empleados para la gestión de los patrimonios nobiliarios absentistas. Este trabajo tiene como objetivo exponer el sistema contable implantado en el estado condal de La Gomera (Islas Canarias) durante un periodo de tiempo en el que el señor no residía en su señorío, pero explotaba directamente sus propiedades gracias a la ayuda de sus agentes delegados. Analizando sus registros contables, reconstruimos la economía del señorío y su organización administrativa, demostrando que el propósito principal del sistema contable era controlar la actuación del administrador gomero y establecer su responsabilidad ante el señor.
História da contabilidade e o gênero feminino
Authors: Silva Sampaio Eliane , Rocha Gomes Delfina Rosa , De Santana Porte Marcelo
Published: October 2017

Este trabalho tem como objetivo analisar e compreender a atuação de Anna Joaquina Jansen à frente dosnegócios da família sob a perspectiva da pesquisa do gênero feminino em história da contabilidade. Para tanto, operíodo compreendido por esta pesquisa foi o século XIX, tendo como ponto de partida o ano do casamento deAnna Jansen com o Coronel Izidoro Pereira, 1822, encerrando-se em 1869, ano de seu falecimento.O enquadramento teórico utilizado na investigação é retirado da literatura que explora os conceitos degênero e contabilidade, sendo também considerado o conceito de emancipação oriundo desta relação, uma vezque a contabilidade, enquanto prática social, é capaz de atuar como ferramenta emancipatória em benefício dosgrupos sociais menos favorecidos. O presente estudo tem como principais fontes os documentos manuscritos doséculo XIX, dentre os quais se tem o inventário de Anna Jansen, registros portuários, assim como solicitaçõesdirigidas a D. Pedro II.Mediante a análise dos manuscritos e dos jornais da época foi possível constatar que Anna Jansen setornou detentora de uma das maiores fortunas da região ao ficar viúva, e por meio desta fortuna conseguiu atingirlugar de destaque na sociedade maranhense. Sua atuação representa um romper dos paradigmas que tendem aanular a participação feminina em atividades econômicas e políticas, e levou ao seu reconhecimento como umamulher muito à frente da época em que viveu. Embora não se tenha conhecimento de registros técnicos mantidospor Anna Jansen ao longo de sua vida, constata-se por meio dos documentos primários analisados que possuíagrande destreza para a administração das suas propriedades e seus bens.
INTERNATIONALIZATION OF HIGHER EDUCATION: INTERCULTURAL DIMENSION
Authors: Sikorskaya I.
Published: October 2017

The paper presents some aspects of the internationalization of higher education from the angle of intercultural dimension, namely willingness of host universities to create and maintain the multicultural environment, readiness of the incoming students to immerse into foreign cultural environment, their adaptation towards western educational practices, as well as the issues of the internationalization of the curriculum. The author also emphasizes that learning styles are diverse in different cultures, which should be taken into consideration by host institutions.Key words: higher education, internationalization, intercultural dimension, curriculum, international students, diverse learning styles
Rebar: Reinforcing a Matching Estimator With Predictions From High-Dimensional Covariates
Authors: Sales Adam C. , Hansen Ben B. , Rowan Brian
Published: October 2017

In causal matching designs, some control subjects are often left unmatched, and some covariates are often left unmodeled. This article introduces “rebar,” a method using high-dimensional modeling to incorporate these commonly discarded data without sacrificing the integrity of the matching design. After constructing a match, a researcher uses the unmatched control subjects—the remnant—to fit a machine learning model predicting control potential outcomes as a function of the full covariate matrix. The resulting predictions in the matched set are used to adjust the causal estimate to reduce confounding bias. We present theoretical results to justify the method’s bias-reducing properties as well as a simulation study that demonstrates them. Additionally, we illustrate the method in an evaluation of a school-level comprehensive educational reform program in Arizona.
Emerging adults' experiences of middle and high school sexual health education in New Brunswick, Nova Scotia, and Ontario
Authors: Byers E. Sandra , Hamilton Lisa Dawn , Fisher Bonnie
Published: October 2017

The current study examined the perception of sexual health education (SHE) being provided in middle and high schools in three Canadian provinces from a sample of young adults. Participants were 296 undergraduate students (91 men, 205 women) between the ages of 18 and 24 who had gone to both middle school and high school in New Brunswick, Nova Scotia, or Ontario. There were few differences between provinces. Almost all participants reported receiving SHE in middle school but about a quarter had not received SHE in high school. On average, participants rated the SHE they had received in middle school as fair and in high school as good. Participants, on average, rated most of 21 specified sexual health topics as covered poorly and covered. The men tended to rate the SHE they had received in middle school more positively than did the women. Participants reported that teachers used a variety of methods in the classroom, 6.78 of 9 possible methods on average. Multiple regression analyses showed that higher perceived quality of SHE was associated with better topic coverage, the extent to which the topics covered matched their interests, and the number of different methods used. Participants reported that peers were a more important source of sexual health information than was SHE. The results point to a continued need to improve the quality of SHE provided in Canadian schools.
Special Issue on Open Access
Authors: Avery Marguerite , Holzman Alex , Brown Robert
Published: October 2017

The co-editors of the Journal of Scholarly Publishing introduce the second special issue of their tenure. This issue on open access publishing was undertaken with the assistance of guest co-editor Marguerite Avery.
Assessing the Openness of Anthropology Journals
Authors: Dale Melody , Eichmann-Kalwara Nickoal , Kathuria Sheeji , Jones Mary Ann
Published: October 2017

This study analyses the extent of gold open access (OA) publishing options in 377 anthropology journals by applying a six-level coding scheme (0=non-transparent publishing, 5=fully OA, i.e., free to read and publish without embargo). This analysis is meant to simplify the process of identifying OA journal publishing options in the discipline of anthropology, in addition to sharing findings on some of the prominent issues in OA publishing as they relate to anthropology journals, including non-transparency among publishers and the prevalence and price of article processing charges (APCs). We conclude that publishers should be more transparent about their OA publishing options and policies by providing conspicuous and straightforward information to potential authors. Further, we find that in the anthropology scholarly communication ecosystem, APCs for hybrid journals are more expensive than those for fully gold OA journals, thus contradicting the assumption that gold OA is more costly to researchers.
Open Publication, Digital Abundance, and Scarce Labour
Authors: Eve Martin Paul
Published: October 2017

This article examines the challenges of labour provision in the open-access online scholarly publishing environment. While the technological underpinnings of open access imply an abundance, it is also the case that the labour that remains necessary in publishing processes is based on a set of economics that are scarce: the availability of human time, effort, and expertise. I here argue, with a demonstration of some of the labours of XML typesetting, that we are unlikely to realize the transformations of an abundant proliferation of scholarship without a substantial change and redistribution of labour functions to authors, which is unlikely to be socially accepted. The resultant outputs from this process would also, I argue, be less likely to be machine readable and semantically rich, thereby conflicting with other imagined digital possibilities.
Opening the Monograph: Lessons from Luminos
Authors: Mudditt Alison
Published: October 2017

In response to increasing challenges to both the financial model and the distribution model for traditional monographs, the University of California Press developed and launched a new open access monograph program, Luminos, in 2015. Now that Luminos is halfway through its second year, this article reviews the program's progress in addressing its three core goals: developing a more sustainable financial model, improving access and impact, and providing a digital space with multimedia capabilities for monographs.
Evaluating and Promoting Open Data Practices in Open Access Journals
Authors: Castro Eleni , Crosas Mercè , Garnett Alex , Sheridan Kasey , Altman Micah
Published: October 2017

The last decade has seen a dramatic increase in attention from the scholarly communications and research community to open access (OA) and open data practices. These are potentially related because journal publication policies and practices both signal disciplinary norms and provide direct incentives for data sharing and citation. However, there is little research evaluating the data policies of OA journals. In this study we analyse the state of data policies for OA journals by employing random sampling of the Directory of Open Access Journals and Open Journal Systems journal directories and applying a coding framework that integrates both previous studies and emerging taxonomies of data sharing and citation. This study, for the first time, reveals both the low prevalence of data-sharing policies and practices in OA journals, which differs from the previous studies of commercial journals in specific disciplines.
Gold Open Access Publishing in Mega-Journals: Developing Countries Pay the Price of Western Premium Academic Output
Authors: Ellers Jacintha , Crowther Thomas W. , Harvey Jeffrey A.
Published: October 2017

Open access publishing (OAP) makes research output freely available, and several national governments have now made OAP mandatory for all publicly funded research. Gold OAP is a common form of OAP where the author pays an article processing charge (APC) to make the article freely available to readers. However, gold OAP is a cause for concern because it drives a redistribution of valuable research money to support open access papers in ‘mega-journals’ with more permissive acceptance criteria. We present a data-driven evaluation of the financial ramifications of gold OAP and provide evidence that gold OAP in mega-journals is biased toward Western industrialized countries. From 2011 to 2015, the period of our data collection, countries with developing economies had a disproportionately greater share of articles published in the lower-tier mega-journals and thus paid article APCs that cross-subsidize publications in the top-tier journals of the same publisher. Conversely, scientists from Western developed countries had a disproportionately greater share of articles published in those same top-tier journals. The global inequity of the cross-subsidizing APC model was demonstrated across five different mega-journals, showing that the issue is a common problem. We need to develop stringent and fair criteria that address the global financial implications of OAP, as publication fees should reflect the real cost of publishing and be transparent for authors.
Eschatological Communion: Human and Nonhuman Animals in Light of Evolution
Authors: Harvie Timothy
Published: October 2017

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Scientifically engaged theologies struggle to include a cohesive eschatology in light of empirical projections of mass extinction and the potential death of the cosmos. On the one hand, Denis Edwards argues for a noninterventionist account of resurrection that coheres with evolutionary origins. On the other hand, animal theologies tend to neglect eschatology or engage in speculation. This article argues that eschatology requires a scientifically coherent account of creation. Therefore, it proposes that eschatology for both human and nonhuman participants must be communally grounded along evolutionary lines. Using Buber's intersubjectivity and evolutionary accounts of theology, it concludes that since eschatological life is relationally constituted within an evolutionary community, then in order to maintain continuity of identity, eschatological relationships are contingent upon the evolutionary relationships established pre-eschaton.
Hypomagnesemia is associated with increase in mortality and morbidity in ICU: Can serum magnesium level be used as prognostic marker in critically ill ICU admitted patients?
Authors: Islam Md Motiul , Faruq Mohammad Omar , Asaduzzaman Mohammad , Sultana Amina , Mollick Uzzawl Kumar
Published: October 2017

Objective: Hypomagnesemia is one of the common electrolyte disorders found in critically ill patients. It is often an incidental finding and usually its importance is ignored. This study was designed to assess the significance of the impact of hypomagnesemia on the mortality and morbidity of the ICU patients. Hence the efficacy of hypomagnesemia as prognostic marker was also tested.Method: Prospective cohort study done at the department of Critical Care Medicine, of a tertiary care hospital in the city of Dhaka, Bangladesh (from January 2014 to December 2014) aiming to find out of the differences in mortality & morbidity between two groups of patients one with low and other with normal Mg level.Result: 95 adult ICU admitted patients were included in the study and 38% of the study subjects were found to be Hypomagnesemic. The Hypomagnesemic group of patients needed more frequent ventilator support (75% vs 52.54%, p<0.02) and the duration of mechanical ventilator support was also prolonged (3.88±4.10 vs 2.25±3.18, p<0.04, in days). Hypomagnesemic group also needed prolonged ICU stay (9.13 vs 6.27, p<0.01) and total hospital stay (14.94 vs 10.47, p<0.007, days). Hypomagnesemic group of patients had more abnormal total leukocyte count (69.4% vs 47.5%, p <0.05) and more frequent use of inotropic support (61.1% vs 38.9%, p <0.05). The 28 days mortality rate in Hypomagnesemic patients were also high (33.3% vs 11.86%, p<0.01).Conclusion: In this study it was observed that Hypomagnesemia was significantly associated with adverse outcome. So it is better not to ignore this important confounder to predict the outcome of the critically ill ICU admitted patient. Considering the increasing demand of more accurate prognostic marker in critically ill patient, it maybe the high time to utilize serum Mg level systematically for outcome prediction.Bangladesh Crit Care J September 2017; 5(2): 77-82
Laparoscopic cost effective management of cholecystoduodenal fistula
Authors: Ratan Md Ezharul Haque , Alam Hasina , Karim Md Abdul
Published: October 2017

Introduction: Contraindication to laparoscopic surgery is decreasing with time, expertise and innovation. One such uncommon condition is cholecystoduodenal fistula (CDF), now increasingly managed with laparoscopic technique. We are reporting eight such incidentally diagnosed cases during laparoscopic operation, which were successfully and cost-effectively managed with traditional laparoscopic instruments.Materials and Methods: During March 2008 to March 2017, 1500 patient underwent laparoscopic cholecystectomy for benign gall bladder condition or their complications, eight of these having chronic dyspeptic symptoms of gallstone, were found to have cholecystoduodenal fistula, intraoperatively. All cases were managed laparoscopically using common laparoscopic instruments without any special gadgets and extra costs. Medical records of eight cases were reviewed for age, sex, operative technique, intra and post-operative complications and length of stay in hospital.Results: Five patients were male and three were female with a mean age of 63 years. All of them had gall stones at abdominal ultrasound and cholecystoduodenal fistula were found intraoperatively. Fistula tract was dissected, cleaned and sealed with combination of intracorporeal simple transfixation ligation and interrupted stitches to invert the stump within the duodenal wall in transverse fashion. All eight had uneventful postoperative course with hospital stay of 4-7 (mean 5) days.Conclusion: In expert hands cholecystoduodenal fistula can successfully and safely be managed laparoscopically using common instruments and logistics with slight modification of open technique without extra cost.Bangladesh Crit Care J September 2017; 5(2): 110-112
Effect of Mitral Valve Leaflets Excursion on Mitral Valve area after Percutaneous Trans- Venous Mitral Commissurotomy
Authors: Mannan Md Abdul , Majumder AAS , Hossain Solaiman , Ullah Mohammad , Kayes SNI
Published: October 2017

Background: Aim of our study was to predict the effect of mitral valve leaflets excursion on mitral valve area following percutaneous transvenous mitral commissurotomy PTMC in patients of mitral stenosis.Methods: Total 70 patients with severe mitral stenosis who underwent PTMC were enrolled in the study.Transthoracic echocardiography was done the day before PTMC and 24-48 hours after PTMC. Mitral valve area, anterior and posterior leaflets excursion were recorded. The relation between leaftlet excursion and mitral valve after PTMC was evaluated.Results: Following PTMC there were significant increasein anterior leaflet excursion from 1.9 ± 0.2 to 2.3 ± 0.2cm (p<0.001), posterior leaflet excursion from 1.6±0.2to1.9 ± 0.2cm (p<0.001). Mitral valve areas increased from 0.8 ± 0.1 to1.7 ± 0.2cm²(p<0.001). Both leaflet excursion increased significantly with the increase in mitral valve area till the area reached a value of about 1.5 cm2, after which any further increase in mitral valve area was not associated with any further increase in leaflet excursion.Conclusion: PTMC is associated with immediate significant changes in mitral valve morphology in terms of splitting of fused mitral commissures, increased leaflets excursion and splitting of the subvalvular structures. Post PTMC leaflet excursion increases significantly with the increase in mitral valve area till the area reaches a value of about 1.5 cm2 after which any further increase in mitral valve area is not associated with any further increase in leaflet excursion.Cardiovasc. j. 2017; 10(1): 3-7
Impact of Body Mass Index on In-Hospital Outcomes after Percutaneous Coronary Interventions
Authors: Siddiqui Mohammad Khalilur Rahman , Azam STM Abu , Karmakar Pradip Kumar , Nabi Shaila , Karmaker Pranob , Datta Ratan Kumar , Ahsan Mohammad Morshedul , Howlader Anup Kumar , Roy Sharadindu Shekhar , Sikder Mohammad Sadaqul Islam
Published: October 2017

Background: Obesity, measured on the basis of body mass index (BMI), is an independent cardiovascular risk factor. However, some studies have reported the obesity paradox after percutaneous coronary intervention (PCI). The relationship between BMI and clinical outcomes after PCI has not been thoroughly investigated, especially in Bangladesh.Method: This cross sectional observational study was conducted at National Institute of Cardiovascular Diseases, on total 100 patients who underwent PCI with two equally divided groups on the basis of BMI of Asian ethnicity: Group I (BMI < 23 kg/m2) and Group II (BMI e 23.0 kg/m2). In-hospital outcomes were observed and recorded after PCI.Results: The mean BMI of study population was 23.9 ± 1.9 kg/m2. The sum of occurrence of adverse in-hospital outcomes was 14.0%. Complications were significantly (p < 0.01) higher in Group I than Group II. Among all adverse in-hospital outcomes, only acute left ventricular failure was found to be statistically significant between groups (p < 0.01). The difference of mean duration of hospital stay after PCI was higher in Group-I which was statistically significant (p < 0.01). Diabetes mellitus and dyslipidemia were found to be the independent predictors for developing adverse in-hospital outcome (OR= 1.68 and 1.46; 95% CI = 1.25  2.24 and 1.16  1.83; p = 0.018 and 0.040, respectively). BMI was inversely associated with adverse in-hospital outcome after PCI (OR = 0.95; 95% CI = 0.91  0.98; p = 0.007).Conclusion: BMI is inversely associated with adverse in-hospital outcomes after PCI. The underweight and normal weight people are at greater risk to experience in-hospital adverse outcomes than overweight and obese people following PCI.Cardiovasc. j. 2017; 10(1): 31-39
Association of Body Mass Index with Angiographic Severity of Coronary Artery Disease in Patients with Acute ST- Segment Elevation Myocardial Infarction
Authors: Rafiquzzaman Khondker , Ali Mahboob , Rahman Md Toufiqur , Alam Nur , Hossain Muhammad Azmol , Md Jafar Abul Hasnat , Rahman Mohammad Arifur
Published: October 2017

Background: This study evaluated the association of body mass index (BMI) and angiographic severity of coronary artery disease in patients with acute ST segment elevation myocardial infarction (STEMI).Methods: Data were analyzed from 100 acute STEMI patients who underwent coronary angiogram. The patients were grouped based on BMI; those with normal BMI, 18.5- 24.9 kg/m2 (group I) and those with increased BMI, >25 kg/m2 (group II). Each group contained 50 patients. Angiographic severity of the three groups was compared and the relation between BMI and angiographic severity was assessed.Results: The mean BMI of subjects with normal angiographic findings was 20.81 ± 1.03 kg/m2. The mean BMI of single, double and triple vessel disease were 23.85 ± 2.24, 24.25 ± 2.41 and 32.06 ± 7.86 kg/m2 respectively. The number of vessel involvement increased in proportion with increased BMI and the differences were statistically significant (p=0.001).Conclusion: Increased BMI is associated with angiographic severity of coronary artery disease in patients with acute ST-segment elevation myocardial infarction.Cardiovasc. j. 2017; 10(1): 68-73
Renal Functional Status of Asphyxiated Babies & its Correlation with Apgar Score
Authors: Saha Dipa , Mollah Md Abid Hossain , Afroz Shireen , Banerjee Manisha , Khan Tofazzal H , Saha Chinmoy Sumar
Published: October 2017

Introduction: Kidney is the 2nd commonest affected organ as a consequence of asphyxia1. Most attention is given to prevent CNS damage and neurological sequel but hypoxic renal insult not only influences neonatal morbidity & mortality but may give rise to CKD. to assess the renal functional status of asphyxiated babies.Material & Methods: This cross sectional study was conducted in the Department of Neonatology & Department of Gynecology and Obstetrics, Dhaka Medical College Hospital during January 2012 to January 2013. A total of 150 inborn, term asphyxiated neonates with e 2.5 kg who had history of delayed or no cry with Apgar score <7 at 5 minutes were enrolled. Then, the cases were grouped into mild (AS: 6-7), moderate (AS: 4-5) and severe asphyxia (AS: 0-3) based on Apgar score. Forty eight neonates were excluded according to exclusion criteria. Finally, the renal functions were assessed among 102 neonates by measuring urine output 8 hourly and estimated creatinine clearance (eCCL) on the 3rd day o7f life using Schwartz formula (eCCl=Height (cm) ×.37/S.creatinine). Neonates with impaired renal function were further classified as stage-I (risk), II (injury), III (failure) using pRIFLE criteria. Data were analyzed by Chi-square & Pearson correlation coefficient test to find out correlation between Apgar scores and renal functional status.Results: Of the 102 cases studied, majority 48% were in moderate, 30.4% in mild and 21.6% in severely asphyxiated group. In the mild asphyxiated group 58.06% had normal renal function. However, the remaining cases 29.03% & 12.90% had stage I, stage II renal injury respectively and had no renal failure. In Moderately asphyxiated group, 26.53% had normal renal function & the remaining 32.65%, 34.69%, 6.1% had stage I, II, III renal injury respectively. None of the severely asphyxiated babies had normal renal function. However they had impaired renal function ranging from Stage I (27.27%), stage II (27.27%) & stage III (40.90%).Variable proportion of kidney injuries were noted among the asphyxiated neonates. The lower the Apgar score, the more severe the injuries and association between stages of kidney injuries and Apgar score was observed statistically significant (p<0.001). The renal functional status (eCCL) was also found positively correlated with low Apgar score (r=0.6, p<0.002).Conclusion: Variable functional impairment of kidneys was found among the asphyxiated neonates and the severity of impairment significantly correlated with low Apgar score.J Bangladesh Coll Phys Surg 2017; 35(3): 128-132
Micro Preemie with the Earliest Gestational Age and the Lowest Birth Weight that Survived in ICU, Dhaka Shishu (Children) Hospital, Bangladesh
Authors: Hoque Md Shafiul , Rahman Mobashshera , Hussain Manzoor , Ahmed SM Nawshad Uddin
Published: October 2017

Prematurity is a common neonatal problem in developing countries and is associated with high mortality and both immediate and long-term morbidities. More a baby is premature more is the chance of mortality. With the advent of modern supportive care favorable outcome has been observed in extremely premature babies in developed countries, but the outcome is not satisfactory in developing countries. Recently, an incredibly low birth weight (456 grams) micro preemie was successfully managed in Dhaka Shishu Hospital. With round the clock care at the hospitals Neonatal Intensive Care Unit she was tipping the scales and discharged at the age of three months, weighing 1128 grams. To the best of our knowledge, this is the lowest birth weight baby survived in our country, an exceptional achievement and a milestone in newborn care in Bangladesh.J Bangladesh Coll Phys Surg 2017; 35(3): 142-146
Digital Subtraction Angiography Findings in Aneurysmal Subarachnoid Haemorrhage: Experience of 30 Cases in Bangladesh
Authors: Islam Mahmudul , Hasan Mashfiqul , Hakim Maliha , Khan Sharif Uddin , Rahman Kazi Mohibur , Mohammad Quazi Deen
Published: October 2017

Background: Digital subtraction angiography (DSA) is an important diagnostic tool for aneurysmal subarachnoid haemorrahage (SAH). Objectives: The purpose of the present study was to observe the findings of DSA in patients with SAH. Methodology: This cross-sectional study was performed in the Department of Neurology at Dhaka Medical College Hospital, Dhaka from December 2009 to November 2010 for a period of one (1) year. Patients at any age in both sexes who were admitted with SAH were included by purposive sampling technique. Demographic and clinical data were recorded in a semi-structured questionnaire. Angiography was performed after 4 weeks by DSA technique among all patients. Results: The mean age of the participants was 44.9±9.7 years (mean±SD). Male female ratio was 3:2. Hypertension, smoking, diabetes mellitus and family history of SAH were found in 14(46.6%) cases, 13(43.3%) cases, 3(10.0%) cases and 2(6.7%) cases patients respectively. All the study patients (100%) had headache and vomiting while 19(63.3%) cases had history of unconsciousness. Signs of meningeal irritation were present in 23(76.7%) patients. Anterior communicating artery was the most common site of aneurysm (36.7%) followed by middle cerebral (26.7%) and posterior communicating artery (23.3%). Majority of aneurysms were medium sized (46.7%), while 33.3% were small and 20.0% were large. Saccular aneurysm was found in 93.3% and aneurysms of narrow neck size in 86.7%. Conclusions: DSA has demonstrated that anterior communicating artery is the most common site of aneurysms in patients with SAH and is most often saccular with a narrow neck. Journal of National Institute of Neurosciences Bangladesh, 2016;2(2): 51-54
Split Cord Malformation-1 (SCM): Characteristic Neuro-imaging
Authors: Chowdhury Forhad Hossain , Haque Mohammod Raziul , Mohammod Nur
Published: October 2017

Abstract not availableJournal of National Institute of Neurosciences Bangladesh 2016;2(2): 103-104
On the Redox Activity of Urban Aerosol Particles: Implications for Size Distribution and Relationships with Organic Aerosol Components
Authors: Samara Constantini
Published: October 2017

This article presents the distribution of the dithiothreitol-based (DTT) redox activity of water-soluble airborne particulate matter (PM) from two urban sites in the city of Thessaloniki, northern Greece in four size ranges (<0.49, 0.49–0.97, 0.97–3.0 and >3 μm). Seasonal and spatial variations are examined. The correlations of the mass-normalized DTT activity with the content of PM in water-soluble organic carbon (WSOC) and non-water-soluble carbonaceous species, such as organic and elemental carbon, as well as with solvent-extractable trace organic compounds (polycyclic aromatic hydrocarbons and nitro-derivatives, polychlorinated biphenyls, organochlorines, polybrominated biphenyl ethers) and polar organic markers (dicarboxylic acids and levoglucosan), are investigated. Our study provides new and additional insights into the ambient size distribution of the DTT activity of the water-soluble fraction of airborne PM at urban sites and its associations with organic PM components.
Detailed Investigation of the Electric Discharge Plasma between Copper Electrodes Immersed into Water
Authors: Venger Roman , Tmenova Tetiana , Valensi Flavien , Veklich Anatoly , Cressault Yann , Boretskij Viacheslav
Published: October 2017

A phenomenological picture of pulsed electrical discharge in water is produced by combining electrical, spectroscopic, and imaging methods. The discharge is generated by applying ~350 μs long 100 to 220 V pulses (values of current from 400 to 1000 A, respectively) between the point-to-point copper electrodes submerged into the non-purified tap water. Plasma channel and gas bubble occur between the tips of the electrodes, which are initially in contact with each other. The study includes detailed experimental investigation of plasma parameters of such discharge using the correlation between time-resolved high-speed imaging, electrical characteristics, and optical emission spectroscopic data. Radial distributions of the electron density of plasma is estimated from the analysis of profiles and widths of registered Hα and Hβ hydrogen lines, and Cu I 515.3 nm line, exposed to the Stark mechanism of spectral lines’ broadening. Estimations of the electrodes’ erosion rate and bubbles’ size depending on the electrical input parameters of the circuit are presented. Experimental results of this work may be valuable for the advancement of modeling and the theoretical understanding of the pulse electric discharges in water.
Thermal Characteristics of Conversion-Type FeOF Cathode in Li-ion Batteries
Authors: Zhao Liwei , Kitajou Ayuko , Okada Shigeto
Published: October 2017

Rutile FeOF was used as a conversion-type cathode material for Li-ion batteries. In the present study, 0.6Li, 1.4Li, and 2.7Li per mole lithiation reactions were carried out by changing the electrochemical discharge reaction depth. The thermal characteristics of the FeOF cathode were investigated by thermogravimetric mass spectrometric (TG-MS) and differential scanning calorimeter (DSC) systems. No remarkable HF release was detected, even up to 700 °C, which indicated a low toxic risk for the FeOF cathode. Changes in the thermal properties of the FeOF cathode via different conversion reaction depths in the associated electrolyte were studied by changing the cathode/electrolyte ratio in the mixture. LiFeOF was found to exothermically react with the electrolyte at about 210 °C. Similar exothermic reactions were found with charged FeOF cathodes because of the irreversible Li ions. Among the products of the conversion reaction of FeOF, Li2O was found to exothermically react with the electrolyte at about 120 °C, which induced the main thermal risk of the FeOF cathode. It suggests that the oxygen-containing conversion-type cathodes have a higher thermal risk than the oxygen-free ones, but controlling the cathode/electrolyte ratio in cells successfully reduced the thermal risk. Finally, the thermal stability of the FeOF cathode was evaluated in comparison with FeF3 and LiFePO4 cathodes.
Metacognitive Precursors: An Analysis in Children with Different Disabilities
Authors: Sáiz Manzanares María , Carbonero Martín Miguel
Published: October 2017

The analysis of Metacognitive skills is a key element to guide the learning process. Current research has shown the initiation of these skills from an early age. The present study had two aims: (1) to validate a Scale Measuring Precursor Metacognitive Skills (SMPMS) in children with diverse disabilities, and (2) to study possible significant different between different disabilities in precursor metacognitive skill use. We worked with 87 children with different disabilities, with an average age range of 24–37 months. The results have shown high indicators of reliability and validity of the SMPMS. We isolated two factors related to cognitive and metacognitive and self-regulation skills response to an adult. We also found significant differences in the acquisition of metacognitive and self-regulation skills among children with global developmental retardation as compared to children with expressive language and comprehension disability.
Welcome to Ceramics: A New Open Access Scientific Journal on Ceramics Science and Engineering
Authors: Fantozzi Gilbert
Published: October 2017

The word ceramics comes from the Greek word keramikos, which means pottery and corresponds to a very old human activity. Indeed, one of the oldest materials fabricated in the world is ceramic pottery [...]
Heterojunctions Based on II-VI Compound Semiconductor One-Dimensional Nanostructures and Their Optoelectronic Applications
Authors: Zhang Xiwei , Wu Di , Geng Huijuan
Published: October 2017

Wide band gap II-VI semiconductor nanostructures have been extensively studied according to their great potentials for optoelectronic applications, while heterojunctions are fundamental elements for modern electronic and optoelectronic devices. Subsequently, a great deal of achievements in construction and optoelectronic applications of heterojunctions based on II-VI compound semiconductor one-dimensional nanostructures have been obtained in the past decade. Herein, we present a review of a series of progress in this field. First, construction strategies towards different types of heterojunctions are reviewed, including core-shell heterojunctions, one-dimensional axial heterojunctions, crossed nanowires heterojunctions, and one-dimensional nanostructure/thin film or Si substrate heterojunctions. Secondly, optoelectronic applications of these constructed heterojunctions, such as photodetectors, solar cells, light emitting diodes, junction field effect transistors, etc., are discussed briefly. This review shows that heterojunctions based on II-VI compound semiconductor 1-D nanostructures have great potential for future optoelectronic applications.
EXONEST: The Bayesian Exoplanetary Explorer
Authors: Knuth Kevin , Placek Ben , Angerhausen Daniel , Carter Jennifer , D’Angelo Bryan , Gai Anthony , Carado Bertrand
Published: October 2017

The fields of astronomy and astrophysics are currently engaged in an unprecedented era of discovery as recent missions have revealed thousands of exoplanets orbiting other stars. While the Kepler Space Telescope mission has enabled most of these exoplanets to be detected by identifying transiting events, exoplanets often exhibit additional photometric effects that can be used to improve the characterization of exoplanets. The EXONEST Exoplanetary Explorer is a Bayesian exoplanet inference engine based on nested sampling and originally designed to analyze archived Kepler Space Telescope and CoRoT (Convection Rotation et Transits planétaires) exoplanet mission data. We discuss the EXONEST software package and describe how it accommodates plug-and-play models of exoplanet-associated photometric effects for the purpose of exoplanet detection, characterization and scientific hypothesis testing. The current suite of models allows for both circular and eccentric orbits in conjunction with photometric effects, such as the primary transit and secondary eclipse, reflected light, thermal emissions, ellipsoidal variations, Doppler beaming and superrotation. We discuss our new efforts to expand the capabilities of the software to include more subtle photometric effects involving reflected and refracted light. We discuss the EXONEST inference engine design and introduce our plans to port the current MATLAB-based EXONEST software package over to the next generation Exoplanetary Explorer, which will be a Python-based open source project with the capability to employ third-party plug-and-play models of exoplanet-related photometric effects.
Fluctuation of Information Entropy Measures in Cell Image
Authors: Wohl Ishay , Zurgil Naomi , Hakuk Yaron , Sobolev Maria , Deutsch Mordechai
Published: October 2017

A simple, label-free cytometry technique is introduced. It is based on the analysis of the fluctuation of image Gray Level Information Entropy (GLIE) which is shown to reflect intracellular biophysical properties like generalized entropy. In this study, the analytical relations between cellular thermodynamic generalized entropy and diffusivity and GLIE fluctuation measures are explored for the first time. The standard deviation (SD) of GLIE is shown by experiments, simulation and theoretical analysis to be indifferent to microscope system “noise”. Then, the ability of GLIE fluctuation measures to reflect basic cellular entropy conditions of early death and malignancy is demonstrated in a cell model of human, healthy-donor lymphocytes, malignant Jurkat cells, as well as dead lymphocytes and Jurkat cells. Utilization of GLIE-based fluctuation measures seems to have the advantage of displaying biophysical characterization of the tested cells, like diffusivity and entropy, in a novel, unique, simple and illustrative way.
A Survey on PEV Charging Infrastructure: Impact Assessment and Planning
Authors: Abdalrahman Ahmed , Zhuang Weihua
Published: October 2017

Plug-in electric vehicles (PEVs) represent a huge step forward in a green transportation system, contribute in reduction of greenhouse gas emission, and reduce the dependence on fossil fuel. Integration of PEVs into the electric power system will result in a considerable addition to electricity demand. Due to PEV mobility, this demand has a random distribution in space and time among distribution system nodes. Therefore, short term forecast of PEV charging demand is more challenging than that for conventional loads. Assessment of PEV impacts on the power system is essential to mitigate the impairments from PEV loads. Optimal planning of PEV charging infrastructure will promote the penetration rate of PEVs and minimize the negative impacts of PEVs on the electric power distribution system and transportation road network. Design of charging facilities with integrated distributed energy resources (DER) is considered a solution to alleviate strain on the grid, reduce the integration cost with the distribution network and the charging cost. In this paper, we present a comprehensive literature survey on modelling of PEV charging demand, impact assessment approaches and tools, and charging infrastructure planning. Moreover, an overview on charging facility design with integrated DER is given. Some future research directions are identified.
Energy Production by Means of Pumps As Turbines in Water Distribution Networks
Authors: Venturini Mauro , Alvisi Stefano , Simani Silvio , Manservigi Lucrezia
Published: October 2017

This paper deals with the estimation of the energy production by means of pumps used as turbines to exploit residual hydraulic energy, as in the case of available head and flow rate in water distribution networks. To this aim, four pumps with different characteristics are investigated to estimate the producible yearly electric energy. The performance curves of Pumps As Turbines (PATs), which relate head, power, and efficiency to the volume flow rate over the entire PAT operation range, were derived by using published experimental data. The four considered water distribution networks, for which experimental data taken during one year were available, are characterized by significantly different hydraulic features (average flow rate in the range 10–116 L/s; average pressure reduction in the range 12–53 m). Therefore, energy production accounts for actual flow rate and head variability over the year. The conversion efficiency is also estimated, for both the whole water distribution network and the PAT alone.
Learning-Based Adaptive Imputation Methodwith kNN Algorithm for Missing Power Data
Authors: Kim Minkyung , Park Sangdon , Lee Joohyung , Joo Yongjae , Choi Jun
Published: October 2017

This paper proposes a learning-based adaptive imputation method (LAI) for imputing missing power data in an energy system. This method estimates the missing power data by using the pattern that appears in the collected data. Here, in order to capture the patterns from past power data, we newly model a feature vector by using past data and its variations. The proposed LAI then learns the optimal length of the feature vector and the optimal historical length, which are significant hyper parameters of the proposed method, by utilizing intentional missing data. Based on a weighted distance between feature vectors representing a missing situation and past situation, missing power data are estimated by referring to the k most similar past situations in the optimal historical length. We further extend the proposed LAI to alleviate the effect of unexpected variation in power data and refer to this new approach as the extended LAI method (eLAI). The eLAI selects a method between linear interpolation (LI) and the proposed LAI to improve accuracy under unexpected variations. Finally, from a simulation under various energy consumption profiles, we verify that the proposed eLAI achieves about a 74% reduction of the average imputation error in an energy system, compared to the existing imputation methods.
An Optimized Prediction Intervals Approach for Short Term PV Power Forecasting
Authors: Ni Qiang , Zhuang Shengxian , Sheng Hanmin , Wang Song , Xiao Jian
Published: October 2017

High quality photovoltaic (PV) power prediction intervals (PIs) are essential to power system operation and planning. To improve the reliability and sharpness of PIs, in this paper, a new method is proposed, which involves the model uncertainties and noise uncertainties, and PIs are constructed with a two-step formulation. In the first step, the variance of model uncertainties is obtained by using extreme learning machine to make deterministic forecasts of PV power. In the second stage, innovative PI-based cost function is developed to optimize the parameters of ELM and noise uncertainties are quantization in terms of variance. The performance of the proposed approach is examined by using the PV power and meteorological data measured from 1kW rooftop DC micro-grid system. The validity of the proposed method is verified by comparing the experimental analysis with other benchmarking methods, and the results exhibit a superior performance.