bluuebunny/crossref_metadata_2025 huggingface dataset:
Homolog-Dependent Repair Following Dicentric Chromosome Breakage in Drosophila melanogaster
Authors: Bhandari Jayaram , Karg Travis , Golic Kent G
Published: May 2019

Double-strand DNA breaks are repaired by one of several mechanisms that rejoin two broken ends. However, cells are challenged when asked to repair a single broken end and respond by: (1) inducing programmed cell death; (2) healing the broken end by constructing a new telomere; (3) adapting to the broken end and resuming the mitotic cycle without repair; and (4) using information from the sister chromatid or homologous chromosome to restore a normal chromosome terminus. During one form of homolog-dependent repair in yeast, termed break-induced replication (BIR), a template chromosome can be copied for hundreds of kilobases. BIR efficiency depends on Pif1 helicase and Pol32, a nonessential subunit of DNA polymerase δ. To date, there is little evidence that BIR can be used for extensive chromosome repair in higher eukaryotes. We report that a dicentric chromosome broken in mitosis in the male germline of Drosophila melanogaster is usually repaired by healing, but can also be repaired in a homolog-dependent fashion, restoring at least 1.3 Mb of terminal sequence information. This mode of repair is significantly reduced in pif1 and pol32 mutants. Formally, the repaired chromosomes are recombinants. However, the absence of reciprocal recombinants and the dependence on Pif1 and Pol32 strongly support the hypothesis that BIR is the mechanism for restoration of the chromosome terminus. In contrast to yeast, pif1 mutants in Drosophila exhibit a reduced rate of chromosome healing, likely owing to fundamental differences in telomeres between these organisms.
APALANCAMIENTO FINANCIERO Y SU INFLUENCIA EN LA RENTABILIDAD DE LAS EMPRESAS, PERIODO 2008-2017
Authors: Casamayou Calderón Elisabeth Teresa
Published: May 2019

Objetivo: El objetivo principal de esta investigación fue determinar la influencia del apalancamiento financiero en la rentabilidad de las empresas pertenecientes al sector industrial que cotizan en la bolsa de valores de Lima en el periodo 2008-2017. Método: El tipo de estudio es no experimental porque las variables no fueron manipuladas y cuantitativo por los datos numéricos que se tiene en la investigación, el diseño de la investigación es longitudinal. Fueron analizadas 34 empresas, usando datos tipo panel para el análisis simultáneo en un periodo de 10 años, por último, el nivel de la investigación es descriptivo, correlacional y causal, debido a la relación directa entre las variables de estudio. Resultados: Se comprobó que el apalancamiento financiero influye significativamente en la rentabilidad, explicándola en un 21,85 %, también influye en el precio de la acción (23,18 %). El margen operativo y el gasto operativo no influyeron de manera independiente en la rentabilidad. En el análisis simultáneo el apalancamiento financiero, y el margen operativo influyeron significativamente en la rentabilidad de las empresas de estudio explicándola en un 23,56 %. Conclusiones: Se concluyó que el apalancamiento financiero influye menos de un 50 %, en la rentabilidad, indicando que existen otras variables que explican su comportamiento como: el precio de la acción, el margen operativo y el gasto operativo, que fueron tomados en cuenta en la investigación.
Long-term Outcomes of Cerebral Aneurysms in Children
Authors: Amelot Aymeric , Saliou Guillaume , Benichi Sandro , Alias Quentin , Boulouis Grégoire , Zerah Michel , Aghakhani Nozar , Ozanne Augustin , Blauwblomme Thomas , Naggara Olivier
Published: May 2019

BACKGROUND:

Our aim was to report the long-term clinical and imaging outcomes of ≤15-year-old children treated for ruptured or symptomatic cerebral aneurysms and to identify prognostic factors for clinical outcome, recurrence, and rebleeding.

METHODS:

We retrospectively identified all pediatric cases of cerebral aneurysm from 2000 to 2015 and then prospectively evaluated long-term occlusion using brain MRI and clinical outcome measures: outcome was considered favorable if King’s Outcome Scale for Childhood Head Injury score was ≥5. We performed univariate analysis and logistic binary regression to identify variables associated with clinical and imaging outcomes.

RESULTS:

Fifty-one children (aged 8.5 ± 1.1 years [mean ± SD], with 37 ruptured and 14 symptomatic aneurysms) were included, and endovascular treatments (84%) or microsurgical procedures (16%) were performed. Despite a 19.6% death rate, at a mean follow-up of 8.3 years, 35 children (68.6%) had a favorable outcome. Annual bleeding and aneurysm recurrence rates were 1.4% ± 1.1% and 2.6% ± 1.8%, respectively. Cerebral ischemia, whether initial or delayed within the first month, was predictive of poor clinical outcome in multivariate analysis (odds ratio: 25; 95% confidence interval: 0.43–143; P < .0001), whereas aneurysm size >5 mm was the only factor associated with recurrence (odds ratio: 14.6; 95% confidence interval: 2.4–86.1; P = .003).

CONCLUSIONS:

Two-thirds of studied ≤15-year-old children suffering from ruptured or symptomatic cerebral aneurysms had long-term favorable outcome. Annual bleeding and aneurysm recurrence rates have shown to be low after endovascular or surgical treatment. Long-term imaging follow-up helps to depict aneurysm recurrence or de novo aneurysm formation and to prevent rebleeding.
High-resolution Mapping in Patients with Persistent AF
Authors: Andronache Marius , Drca Nikola , Viola Graziana
Published: May 2019

Ablation of AF through electrical isolation of the pulmonary veins is a well-established technique and a cornerstone in the ablation of AF, although there are a variety of techniques and ablation strategies now available. However, high numbers of patients are returning to hospital after ablation procedures such as pulmonary vein isolation (PVI). Scar tissue (as identified by contact voltage mapping) is found to be present in many of these patients, especially those with persistent AF and even those with paroxysmal AF. This scarring is associated with poor outcomes after PVI. Cardiac mapping is necessary to locate triggers and substrate so that an ablation strategy can be optimised. Multipolar mapping catheters offer more information regarding the status of the tissue than standard ablation catheters. A patient-tailored catheter ablation approach, targeting the patient-specific low voltage/fibrotic substrate can lead to improved outcomes.
Level of Adherence to Antihypertensive Medications Among Adult Hypertensive Patients in Riyadh City
Authors: Albishi Khaled Abdullah
Published: May 2019

Background: In 2015, there were 1.13 billion individuals living with hypertensionaround the globe. The predominance of hypertension worldwide is of about 40%. InSaudi Arabia, it reached 3.2% among those aged between 15-24 years, 51.2% amongthose aged 55-64 years and up to 70% among those aged 65 years and more. Hypertensioncauses 7.5 million deaths, about 12.8% of the total deaths every year. Adherenceto medication is essential for maintaining life for hypertensive patients.Objective: This study aimed to assess the level of adherence to hypertension medicationsand to determine factors affecting the compliance of hypertensive patients totheir antihypertensive drugs.Methods: we have conducted a descriptive cross-sectional study in Riyadh city population,Saudi Arabia. This study was conducted during the period from December2018 to January 2019. The participants were selected by random sampling. Samplingincluded the different geographical areas of the city. The total sample included216 subjects, all of which were approached to obtain the desired sample size. A selfadministeredquestionnaire about hypertension and complications was filled by theparticipants.Results: in this study, participants classified to three groups according to age: lessthan 40 years old from 40 to 65 years old and 65 years old or above. Male and femalegroups contributed to 72.2% and 27.8% respectively. The majority of participantshad secondary education (55.6%) and about 33.3% were at least university level. Themajority of participants with hypertension were on one medication prescribed for thetreatment of their high blood pressure and the majority of participants (66.7%) werepoorly compliant to their hypertension medication.Conclusion: more attention is needed on preventive educational programs that focuson awareness and assessment of the hypertension medications adherence, complicationsof hypertension, and the danger of poor control of it.Key words: Hypertension–adherence–control–perception
Using a structured assessment of technical skills checklist for surgical management of postpartum hemorrhage
Authors: Erika Banks Meleen Chuang*,Melissa Fazzari, Heather Smith,Julie Kaplan,
Published: May 2019

BACKGROUND: Maternal hemorrhage during cesarean sections can often beidentified and managed surgically with use of the B-Lynch compression suture, andO’Leary (bilateral uterine artery ligation) stitch. Residents may improve their performanceof these procedures using a technical skills checklist with global rating scale.OBJECTIVE: To assess the reliability and validity of a technical skills checklist forthe B-Lynch Suture and O’Leary Stitch using a surgical model.METHODS: Two blinded evaluators reviewed the recordings of 52 obstetrics/gynecology residents and 25 attending physicians performing the simulated BLynchand O’Leary Stitch using a felt uterus model from March 1 2017 to August 31,2017. The evaluators completed task-specific OSATS and global rating scales (GRS)for the two simulations. Interrater reliability and construct validity were assessed.RESULTS: Interrater reliability was 97% for task-specific OSATS (task specificchecklist, TSC) and exceeded 98% for GRS. For construct validity regarding B-Lynchsimulation, attending physicians and senior residents scored higher than junior andnew residents; TSC (15.04 and 15.12, respectively vs. 5.63 and 3.38); GRS B-Lynch(22.38 and 19.35, respectively vs. 8.85 and 6.75. For the O’ Leary simulation, seniorresidents and attending physicians scored higher than junior and new resident on TSC(15.20 and 13.65, respectively, vs. 11.54 and 2.83). Similar findings noted for O’LearyGRS (23.76 and 21.32 vs. 14.89 and 6.83).CONCLUSION: There was good interrater reliability and construct validity using atask-specific OSATS for B-Lynch and O’Leary Stitch. This instrument shows promiseas a tool for competency-based evaluations.Key words: Assessment of skills for postpartum hemorrhage
The Functional Preparedness Of Football Players With Various Ability
Authors: Thuc Dao Chanh
Published: May 2019

This study on the functional readiness of football players in the different game rolesof the teams of Vietnam’s first and second championships is revealed. The criteria forthe readiness of football players are indicators such as maximum oxygen consumptionand physical performance.Functional status of the players is determined in the research laboratory of HCM StatePhysical Culture Academy. The difference in the structure of the functional readinessof the players with different abilities of different playing roles (goalkeeper, center andwing, central midfield and wing and attack) is revealed.Key words: football players–playing role–functional readiness–VO2max–PWC170
Building The Model Of Recreational Sports Club For Students Of An Giang University, Vietnam
Authors: Thuc Dao Chanh
Published: May 2019

The study aims to research on the effectiveness of recreational sports club for studentsof An Giang University - An Giang province, Vietnam. The study was conductedthrough some methods, namely integrated research and relevant literature reviews,experts interview, modeling, pedagogical, medical and psychological examinations,pedagogical experiments and statistical mathematics. The author has demonstratedthe effectiveness of recreational sport club model with specific, scientific and logicalresults.Key words: Model–Recreational sport club–An Giang University
Methods for Flipping of Mammogram Images and Noise Removals
Authors: Bandyopadhyay Prof. Samir Kumar
Published: May 2019

Cancer can be brain cancer, breast cancer, cervical cancer, etc. depending on theoccurrence on the different parts of the body. to name a few. Cancer detected in laterstage and it results into high mortality within few months. Early detection is the onlyhope for better prognosis and treatment. This paper proposed methods that digitalmammogram image pair is initially pre-processed, the right oriented mammogram isflipped and any unwanted artifacts are removed from the image. Next noise removalis made using the Gaussian kernel.Key words: Digital mammography–Computer Aided Diagnosis–Breast Region–Seed
Bacterial Agents and Their Antibiotic Susceptibility in Urinary Tract Infection (UTI) of Pediatric Age Group
Authors: Syed Muneeb Mohammad,Javid Ahmad,Nazir Ahmad Parray Mohd Rafiq Lone*,Nisar Ahmad Ganie,Mohsin Rashid,
Published: May 2019

Background: Urinary tract infections (UTIs) account for one of the common cause of hospital visits and therefore determination of the antimicrobial susceptibility patterns of uropathogens will help guide physicians to choice the best choice of antibiotics to affected patients. The aim of this study was to isolate the bacteriological agent causing the urinary tract infection and determination of their susceptibility to antibiotics.

Methods: Our study was hospital based prospective study in which patients suspected of UTI were admitted and urine sample were collected using ‘urinary catheter’ method in patients less than 3 years of age, while for older children ‘mid stream clean catch’ method was used. Cultures were bacteriologically analyzed using standard microbiological procedures and antimicrobial susceptibility test was performed for the isolated pathogens.Results: 208 patients with suspected UTI were included in study, out of 208 patients, urine cultures were taken from all patients, 38 cultures (18.2%) were reported as positive. The most common pathogens isolated were Escherichia coli 27 (71%), Klebsiella Species 6 (15%), Enterococcussps 3(7.8%), Proteus sps 1(2.6%), Pseudomonas aeruginosa 1(2.6%). E. coli and Klebsiella showed the highest percentage of resistance to amoxicillin and ampicillin (100%) however, all isolates of E. coli and Klebsiella were susceptible to Nitofurantoin. Among all UTI isolates, least resistance was observed against drugs such as ceftriaxone, cefixime ciproflaxacilin and gentamicin.

Conclusion: The finding of our study showed that E. Coli was the most common uropathogen and there was high resistance to routinely used drugs in clinical practice. So it high time to change the empirical therapy from conventional drugs like ampicillin and amoxicillin to drugs like nitrofurantoin or ciprofloxacilin.

Keywords: Urinary tract infection, urine culture, antibiotic susceptibility.
Is It Really a Superfood? Quinoa and The Effects on Cardiovascular Risk Factors
Authors: Günay Seyda Cetin Sanlialp Sara*,
Published: May 2019

Quinoa (Chenopodium Quinoa Willd.) is a psudocereal plant which has been consumedfor 5000 years. It has attracted the attention all over the world because ofits adaptability to all climate conditions and its biological, nutritional importance.The year of 2013 was declared international quinoa year due to the fact that it is anold plant that contributes to world food security. Quinoa has rich nutritional valuefrom protein, essential aminoacid, minerals and vitamins. Also it contains saponins,phytosterols, phytoecdysteroids, phenolics that provides its biological activities. Thesecomponents may positively affect on health such as metobolic, gastrointestinal andcardiac influences but nowadays there are limited studies on human health. In thisreview, the cardiovascular effects of quinoa will be mentioned.Key words: antioxidant–biological activities–cardiovascular effects–quinoa–nutritional value
NEGLECTED TURNER SYNDROME IN A SHORT STATURED ADOLESCENT: CASE REPORT
Authors: Ayeni T.O Oluwayemi I.O*,Odeyemi A.O,
Published: May 2019

Turner syndrome, a chromosomal anomaly with loss of all or part of one sex chromosome,has an incidence of 1/ 2500 female live births. Clinical signs like lymphoedema duringinfancy, or short stature and delayed puberty are common reasons to screen for Turnersyndrome. Ovarian failure occurs in almost all affected females. We present a 15 yearold girl who presented with short stature and delayed puberty. Her mother rememberedshe noticed swelling of both hands and feet during infancy but made no meaning of it.Patient’s weight and height were below the 3rd percentile and had no secondary sexualcharacteristics at presentation. Patient’s karyotype (45, XO) confirmed the diagnosis.She had low serum estradiol, small uterus and atretic ovaries. Puberty was stimulatedwith Primarin for 2 years during which she gained 3kg in weight, 4cm in height andbreast development from Tanner stage 1 to 4. Clinicians need to look out for commonclinical signs of Turner syndrome for early diagnosis, referral and management ofaffected children for optimal growth and development.Key words: Turner syndrome–adolescent–neglected–short stature
O Plano Nacional de Educação em Direitos Humanos: Uma ideia de formação escolar cidadã.
Authors: Silva Simone Stefani
Published: May 2019

A Educação para o exercício da cidadania é um tema constantemente abordado no discurso educacional. O presente artigo busca  relacionar a formação para a cidadania com a Educação em Direitos Humanos bem como analisar o Plano Nacional de Educação em Direitos Humanos no que se refere a Educação Básica e  a Educação como direito.
Modelo matemático para planejamento da distribuição de locomotivas para atendimento à demanda de formação de trens
Authors: Nascimento Fabiano Cézar Gomes , Rosa Rodrigo de Alvarenga
Published: May 2019

Resumo O custo operacional para distribuir locomotivas ao longo dos pátios ferroviários com o objetivo de atender às demandas de formação de trens é muito alto. assim, este artigo propõe um modelo matemático para planejamento da distribuição de locomotivas que visa atender às requisições dos pátios, Locomotive Scheduling Problem (LSP), com o intuito de minimizar os custos de distribuição. o modelo proposto apresenta uma nova formulação para o LSP With Multiple Locomotives e considera o desbalanceamento entre oferta e demanda de locomotivas para atender às requisições de um pátio, o que ainda não havia sido tratado na literatura. testes em instâncias com base em dados reais da estrada de ferro vitória a minas (EFVM) foram resolvidos de forma ótima utilizando o solver CPLEX 12.6. o modelo se mostrou bastante aderente ao planejamento da distribuição, e diversos parâmetros que afetam os custos da distribuição foram analisados. os resultados mostraram ganhos em relação ao planejamento manual atualmente realizado.
Composição probabilística de preferências com abordagem empírica em problemas multicritério
Authors: Gavião Luiz Octávio , Lima Gilson Brito Alves , Sant’Anna Annibal Parracho , Maciel Gabriela Franco dos Santos Vasconcelos
Published: May 2019

Resumo Este artigo teve por objetivo apresentar uma abordagem empírica ao método de Composição Probabilística de Preferências (CPP). O método CPP se destina a escolha, ordenação e classificação de alternativas em problemas multicritério. O CPP tem explorado ampla variedade de aplicações a partir de distribuições de probabilidades contínuas. Entretanto, o uso de probabilidades empíricas, sem a necessidade de conhecer ou assumir uma função de probabilidade conjunta que origina as preferências, pode contribuir para lidar com determinados tipos de problema com escalas ordinais de preferência. A abordagem empírica é aqui aplicada em três casos, com a finalidade de ilustrar suas principais características e limitações. A proposta se mostrou satisfatória para o tratamento de preferências de avaliadores, especialmente quando o número de alternativas é reduzido em relação às opções da escala de pontos de avaliação e ao número de avaliadores, por contribuir para elevar a capacidade discriminatória dos resultados.
As informações do Censo da Educação Superior na implementação da gestão do conhecimento organizacional sobre evasão
Authors: Hoffmann Ivan Londero , Nunes Raul Ceretta , Muller Felipe Martins
Published: May 2019

Resumo A evasão no ensino superior representa uma preocupação na gestão e um campo fértil para estudos acadêmicos. No Brasil, o Ministério de Educação realiza anualmente o Censo da Educação Superior. As diferentes metodologias para o cálculo e análises de indicadores da evasão são muitas vezes consideradas imprecisas e inconsistentes, fragilizando sua importância nas estratégias e políticas públicas de controle e melhorias dos serviços educacionais no âmbito das instituições de ensino superior. Este trabalho exploratório e com abordagem quantitativa propõe uma sistematização para a análise da evasão, utilizando como fonte de dados o Censo. A análise de 2009 a 2014 demonstra que, a partir dos dados do Censo, o conhecimento organizacional pode ser extraído de forma sistemática. A metodologia proposta contribui para o alinhamento entre a tecnologia da informação com a gestão do conhecimento, sendo possível desenvolver soluções que facilitem e organizem o compartilhamento de ideias, boas práticas e dados que podem ser transformados do estado implícito para o explícito, contribuindo na tomada de decisão dos gestores e coordenadores de curso com a finalidade de controlar a evasão.
PRODUCTIVE VIABILITY AND PROFITABILITY OF CARROT-COWPEA INTERCROPPING USING DIFFERENT AMOUNTS OF Calotropis procera
Authors: Bezerra Neto Francisco , Silva Maiele Leandro da , Lima Jailma Suerda Silva de , Barros Júnior Aurélio Paes , Silva Italo Nunes , Chaves Aridênia Peixoto
Published: May 2019

ABSTRACT Intercropping system and the use of green manure with spontaneous species has been an alternative farming method applied to the productive sector of vegetables in the northeastern semi-arid region. The objective of this work was to determine which amount of Calotropis procera must be incorporated into the soil to provide the highest productive performance of the component crops and increase the profitability of the carrot and cowpea intercropping. The experimental design used was randomized complete blocks with five replicates. The treatments consisted of four amounts of C. procera incorporated into the soil: 10, 25, 40 and 55 t ha-1 on a dry basis. The characteristics evaluated in this intercropping system were: commercial productivity of carrot roots, yield of cowpea green grains, land equivalent ratios for component crops and for the intercropped system, score of the canonical variable of the association, and the economic indicators of gross income, net income, rate of return, and net profit margin. The maximum agronomic efficiency of the carrot x cowpea intercropping was reached at the land equivalent ratio of 1.12, using 43.39 t ha-1 of C. procera biomass incorporated in the soil, while the maximum economic efficiency of the carrot and cowpea crops association was obtained at the net income of R$ 17,856.43 ha-1, in the amount of 40.60 t ha-1 of C. procera biomass added to the soil.
NITROGEN AND ORGANIC FERTILIZATION ON GRAPEVINE PRODUCTIVITY IN THE BRAZILIAN SEMIARID REGION
Authors: Lima Franciezer Vicente de , Mendonça Vander , Silva Francisco Sidene Oliveira , Câmara Francisco Mickael de Medeiros , Irineu Toni Halan da Silva
Published: May 2019

ABSTRACT Nitrogen fertilization is a limiting factor for grapevine production; its excess or deficiency can cause changes in fruit quantity and quality. Thus, the objective of this work was to evaluate productive parameters of grapevines of the Isabel-Precoce cultivar subjected to nitrogen and organic fertilization in the western semiarid region of the state of Rio Grande do Norte (RN), Brazil. The experiment was conducted at the Experimental Farm of the Federal Rural University of the Semi-Arid Region, in Mossoró, RN, Brazil, during two production cycles. The soil of the area used was classified as dystrophic Red Argissolo (Udult) of sandy texture. The experiment was conducted in a randomized block design with six replications, using a 5×2 factorial arrangement, with 5 nitrogen fertilizer rates (0, 30, 60, 90, and 120 kg ha-1) and two organic fertilizer rates (0, and 20 m3 ha-1 of bovine manure). The production components number of bunches per plant, grape production per plant, grape yield, weight, length and width of bunches, number of berries per bunch, and ten-berry weight were evaluated. The nitrogen rates and organic fertilizer rates used were significant (p=0.05) for all evaluated components. The N rate of 60 kg ha-1 combined with the organic fertilization generated the best results for the analyzed variables. N rates from 60 to 120 kg ha-1, applied singly or combined with organic fertilizer, hindered the production components of the Isabel-Precoce grapevines.
CO-INOCULATION OF GROWTH PROMOTING BACTERIA AND Glomus clarum IN MICROPROPAGATED CASSAVA PLANTS
Authors: Lopes Esmeralda Aparecida Porto , Silva Almir Dias Alves da , Mergulhão Adália Cavalcanti do Espírito Santo , Silva Emmanuella Vila Nova da , Santiago Antônio Dias , Figueiredo Márcia do Vale Barreto
Published: May 2019

ABSTRACT Arbuscular mycorrhizal fungi (AMF) and growth promoting bacteria in plants (PGPBs) benefit the survival and development of plantlets; such benefits are attributed to the increased absorption of nutrients, increased photosynthetic rate and tolerance to abiotic stress. The aim of this study was to evaluate if the co-inoculation PGPBs and the AMF, Glomus clarum, improves the growth of micropropagated Manihot esculenta Crantz. The experiment was conducted in the greenhouse. The PGPBs used were Azospirillum amazonense (BR 11140), Herbaspirillum seropedicae (BR 11175), Gluconacetobacter diazotrophicus (BR 11284) and Streptomyces sp. (S 30) and mixtures with double inoculation (Streptomyces sp + A. amazonense, Streptomyces sp + H. seropedicae, Streptomyces sp + G. diazotrophicus, A. amazonense + H. seropedicae, A. amazonense + G. diazotrophicus, and H. seropedicae + G. diazotrophicus). Strains of PGPBs inoculated in cassava cv. "BRA Pretinha III" influenced mycorrhizal colonization and the number of glomerospores, and synergistic effects occurred between Glomus clarum and PGPBs. The crude protein content revealed the contribution of PGPBs to nitrogen nutrition in cassava where the inoculated plants assimilated N in equal proportion with those that received mineral nitrogen. The combined inoculation of PGPBs in the presence of Glomus clarum was significant in cassava and fostered better performance in plant growth over time, similar to all the variables studied. Co-inoculation of PGPBs and AMF can meet the N need of cassava, with implications for the reduced use of N fertilizer.
CARTOGRAFIA ESTRUTURAL PARA REVISÃO DE LITERATURA: REVELANDO A ESTRUTURA SUBJACENTE DE UMA LITERATURA POR MEIO DE UM ATLAS BIBLIOGRÁFICO
Authors: HECK JOAQUIM , GEORGIOU ION
Published: May 2019

RESUMO Este artigo apresenta os resultados de um estudo em metodologia que determinou um método específico de análise histórica bibliográfica, descrito como cartografia estrutural para revisão de literatura. O método de cartografia estrutural é rigoroso, interdisciplinar e revela a estrutura de uma bibliografia em estudo por meio dos conceitos metodológicos encontrados em pesquisa histórica, pesquisa bibliográfica, teoria dos grafos, análise de índices e redes de citações e cartografia. Pretende-se que o leitor tenha uma ampla compreensão sobre o que é e como se aplica o método de cartografia estrutural. Por fim, serão apresentadas 12 maneiras de se abordar a estrutura de uma literatura utilizando o atlas bibliográfico elaborado por meio da cartografia estrutural para revisão de literatura.
The Influence of Topological Characteristics and Tourism Environment Information on Spatial Cognition and Satisfaction: Focused on Virtual Reality Techniques
Authors:   The Tourism Sciences Society Of Korea, Park Su-Ji , Jeong Chul
Published: May 2019

This study aims to construct the spatial topological characteristics of tourism space by utilizing virtual reality technique and to confirm the influence of tourist spatial cognition from them on satisfaction. It is also intended to reveal which tourist information is more affected by cognition change of tourists depending on the spatial topology. To verify given hypotheses, quasi-experimental study was conducted in this study. For factorial designs 2(Spatial topological characteristics: LOW vs HIGH) × 2(Tourist Information System vs Request for help) was set. Results showed a difference in tourist spatial recognition according to spatial topology characteristics in virtual reality where the same facility is deployed. In addition, it was found that the information on the tourism environment have different levels of interaction effects in spaces with different spatial topology characteristics.
Anxiety, depression and associated factors among patients with epilepsy attending at outpatients of Ayder Referral, Mekelle and Adigrat Hospitals, Tigray, Ethiopia: A cross - sectional study v1
Authors: Teklebrhan Gebrehiwot Gessessew
Published: May 2019

Introduction: Depression and anxiety are the most common mental illness, but both are frequently unrecognized and unmanaged among patients with epilepsy. Objective: To assess magnitude of anxiety, depression and associated factors among patients with epilepsy attending at outpatients of Ayder Referral, Mekelle and Adigrat Hospital, Tigray, Ethiopia, 2018. Methods: An institution based cross - sectional study design using was conducted from May 15 to June 24, 2018. Data were collected by using face to face interview and systematic sampling was used. Depression and anxiety were measured by using Hospital Anxiety and Depression Scale (HADS). Binary logistic regression was used to see the association between dependent and independent variables. Results: A total of 416 study participants were interviewed with 99.3% response rate and 59.6% of study participants were male. The mean age of the study participants was 33.19 ±13.66 years. The prevalence of depression and anxiety among people with epilepsy was 37.7 % and 39.9 %, respectively. Depression was associated with poor social support (AOR = 3.33), low monthly income (AOR = 2.17), perceived stigma (AOR =5.01), medication non –adherence (AOR =2.06), side effects of AEDs (AOR = 3.71) and current use of alcohol (AOR =2.35). Anxiety was associated with poor social support (AOR = 4.59), perceived stigma (AOR =2.42), medication non –adherence (AOR =2.77), >= 4 times frequency of seizure attacks per months (AOR = 3.04), and side effects of AEDs (AOR = 4.92). Conclusion: The prevalence of depression and anxiety among people with epilepsy was high. Both depression and anxiety had a statistically significant association with perceived stigma, AEDs side effects, medication non-adherence, and social support. Being lower monthly income and current use of alcohol had a statistically significant association with depression only. A frequency of seizure attacks per months had statistically significant association with anxiety only.
U Cinn - Body Composition & Carcass Analysis v1
Authors: Tso Patrick , Lee Dana
Published: May 2019

Summary: Total body composition in live, un-anaesthetized small animals and carcasses will reveal absolute amounts of body fat, lean tissue and body water via a quantitative magnetic resonance (QMR) instrument, EchoMRI, (Echo Medical Systems, LLC, Houston, TX). This instrument uses the differences in the nuclear magnetic resonance properties of hydrogen atoms in organic and non-organic environments to fractionate signals originating from fat, lean tissue and free water.
Protocol for a reproducible circRNA analysis using Docker4Circ v3
Authors: Ferrero Giulio , Licheri Nicola , Coscujuela Tarrero Lucia , De Intinis Carlo , Miano Valentina , Adolfo Calogero Raffaele , Cordero Francesca , Beccuti Marco , De Bortoli Michele
Published: May 2019

Despite many computational tools were developed to predict circular RNAs (circRNAs), a limited number of work-flows exists to fully analyse a circRNA set ensuring the computational reproducibility of the whole analysis. For this purpose, we designed Docker4Circ, a computational work-flow for a comprehensive circRNAs analysis of a circRNAs composed of four modules: the circRNAs prediction (module 1), the circRNAs classification and annotation (module 2), the circRNAs sequence analysis (module 3), and circRNAs expression analysis (module 4). To ensure reproducibility each function of Docker4Circ was embeded into a docker image following guideline provided by Reproducible Bioinformatics Project (RBP, http://reproducible-bioinformatics.org/). Each function is included in the Docker4Seq R package which already includes different solutions for reproducible bioinformatic analyses. This protocol describes the use of each function of Docker4Circ to analyse the circRNAs predicted from a set of RNA-Seq experiments performed in normal colon and colorectal cancer cell lines. Furthermore, the description of the functions required to compute the expression level of the analysed circRNAs in a set of RNA-Seq experiments of colorectal primary tumors is provided.
Papel do Estado quanto à vulnerabilidade e proteção de adultos com deficiência intelectual
Authors: Machado Isis Laynne de Oliveira , Albuquerque Aline
Published: May 2019

Objective: to analyze the role of the State in protecting the vulnerable, especially adults with intellectual disabilities. Methodology: a theoretical study based on the vulnerability references developed by Fineman, Pelluchon and Herring, contrasted with the conception of normative bioethics. Results: we find that adults with intellectual disabilities are in a situation of increased vulnerability, which, in itself, does not justify tax intervention in their manifestation of will, under the protection argument. Conclusion: the State must be cautious about the practical applications of conceptions of vulnerability and protection, insofar as the latter can limit the exercise of the autonomy of people with intellectual disabilities, thus providing protection transvestite damage.
Impulsive Noise Models Used in Power Line Communications
Authors: ÇÜRÜK Selva Muratoğlu
Published: May 2019

In a communication
system, noise has always been considered as a serious cause of error. Although
most common noises can be modeled by well-known Gaussian distributions, some
communication systems experience other types of noise. Power Line Communication
(PLC) is one of these systems which run on a difficult medium since it uses the
preexisting power line network for transmission. PLC experiences several
different types of human-made and natural noise which are mostly impulsive and
cannot be modeled simply by Gaussian. Different statistical models are used for
characterizing the impulsive noise of PLC systems in the literature. The
purpose of this study is to go over the impulsive noise models previously
presented in order to have a contribution to this hot topic. We point out the
similarities and differences of the models, namely Middleton Class A, Bernoulli
Gaussian and Alpha Stable statistical models. It is presented that all have
heavy tails which make them appropriate for impulsive noise. Although Middleton
Class A is more generic, Bernoulli Gaussian model is wide enough and can be
preferable because of its compact simple form especially when analytical
results are needed.
On the extraction of input and output impedance of PWM DC-DC converters
Authors: ASADİ Farzin , EGUCHİ Kei
Published: May 2019

The buck, buck-boost and boost converter, are
the most popular types of DC-DC converters. The input/output charachteristics of
these converters operating in Continuous Current Mode (CCM) is the object of
considerations in this paper. Calculation of input/output impedance is done
with the aid of MATLAB programming since the manual extraction, i.e.
pencil-and-paper analysis, of input/output characteristics is cumbersome and
error prone. This paper can be used as a tutorial on the extraction of
input/output impedance of DC-DC converters.
Adaptive Notch Filter Bank Based Power Quality Analysis of an Ultra-High Frequency Induction Heating System
Authors: TAŞTAN Mehmet
Published: May 2019

Widespread use of the
semiconductor switching elements of power electronics in energy systems has
brought about various power quality problems. One of these significant power
quality problems is the harmonics, which occur in power systems. Harmonics are
generated predominantly by induction systems, arc furnaces, welding machines,
static frequency converters and motor converter drivers. In this study, a power
quality analysis is proposed with a Phase-Locked Loop (PLL) based Digital
Adaptive Notch Filter (ANF) for the 900 KHz Ultra-High Frequency Induction
Heating System (UHFIHS), which is widely used in the industry. In this proposed
method, firstly the power signal is synchronized with the fundamental frequency
using PLL, and then the harmonic frequency components of the signal is obtained
by the ANF. Finally, challenging factors behind the harmonic analysis, such as
fundamental frequency shifting, spectral leakage and leakage effect are
eliminated and thus a precise and reliable power quality analysis is conducted.
Unlock A Device with Pressure and Rhythm Based Password
Authors: AYDEMİR Emrah , TOSLAK Ferhat
Published: May 2019

When people open
their doors, they usually use the keys they carry in their pockets. As an
alternative to these used keys, it is possible to open the doors which are
authorized with RFID-enabled key holders or ID cards. But it seems that
different alternatives have not been developed much. Moreover, none of them
carries the sensory understanding dimension of the person and it is not
possible to determine whether or not the entrance request has been made by that
person. In this study, both the identification of the person and the opening of
the door are ensured by considering both the stroking rhythm and the stroke
force of a buttoner placed in the door. Thus, it is possible to open the door
according to the person's identity and authority without carrying any object
beside it, and it will have a unique original value. The milliseconds between
each stroke for the stroke of the quill are recorded in the generated database.
Comparison is made with the data obtained in the next stroke and the person is
used for verification. In addition, the pressure data of the person is also
kept in the database for each stroke and compared. In the study, the data of
two different people were recorded in the system and the information of the
people using the subjective button was recorded. Then, in addition to these two
different people, a total of 15 people, including 13 different people, were
allowed to use the system. In total, 50 door opening requests data were
recorded and 87.5% success rate was obtained.
Speed Control of BLDC Using NARMA-L2 Controller in Single Link Manipulator
Authors: ÇELİKEL Reşat
Published: May 2019

The BLDC motors are widely used in
industrial applications. The load characteristic and controller are important
to obtain optimum performance in the speed control of the BLDC motor because
some problems are occurred in speed control of nonlinear loads which is used the
conventional control methods. The single link manipulator used in robotic
applications is a nonlinear system for control algorithms. The load of motor is
determined on considering the conversion ratio of the reducer box. In this
study, a single link manipulator system consist of BLDC motor, reducer gearbox
and robot arm is controlled by using NARMA-L2 controller as known modern
control method in used the control of the nonlinear systems. The NARMA-L2
controller is based on neural network. The single link manipulator system is
analyzed by using MATLAB/Simulink environment. The speed control of the BLDC
motor is performed in conditions the constant and nonlinear load. The results
show that the speed control of BLDC motor is performed the high performance in
nonlinear loads.
Performance Analysis of T-type Inverter Based on Improved Hysteresis Current Controller
Authors: İNCİ Mustafa
Published: May 2019

This paper presents
an improved hysteresis current control method for five level T-type inverter.
The proposed method is based on four hysteresis levels and performed to
generate switching signals of fundamental transistors in T-type inverter. By
using generated signals through hysteresis controller, bidirectional switch in
T-type inverter is triggered through the logical way. The system is detailed in
analytical expression and exhibited to generate five voltage levels at the output
of inverter. The improved technique is based on an error signal between the
output current and the reference value. Therefore, the proposed modulation
technique achieves the following output current at the desired value and
ensures high-efficiency conversion ratio at the output. In order to show the
validity of the proposed method, the controller is compared with conventional
sinusoidal pulse width modulated T-type inverter. In performance results, it is
obvious that the proposed method provides a lower total harmonic distortion in
comparison with conventional method.
Subblock Aided OFDM with Index Modulation
Authors: ACAR Yusuf
Published: May 2019

Recently, orthogonal frequency-division multiplexing (OFDM) with index modulation (IM) has been appeared as a novel method for future wireless communication systems. However, such a mechanism has low spectral efficiency due to some sub-carriers are not activated in order to implicitly convey information. In this paper, a subblock dependent approach, called sub-block aided OFDM-IM (SA-OFDM-IM) technique, is proposed for spectral efficiency enhancement of the OFDM-IM scheme with low complexity. The simulation results illustrate that the proposed SA-OFDM-IM and well known OFDM-IM have the same bit error rate (BER) performance while SA-OFDMIM has40% more spectral efficiency with low complexity
Multispectral Palmprint Recognition Based on Multidirectional Transform
Authors: OZMEN Burcin , OLALEYE Olayinka John
Published: May 2019

Multispectral palmprint recognition is one of
the most useful biometric techniques due to features obtained from different
spectral resolutions/wavelengths. In this paper, we propose a multidirectional
transform-based feature encoding plan for reliable and robust representation
and matching of multispectral palm images. The method extracts the region of
interest (ROI) for palmprint images captured with non-contact sensors. The
registered ROI of each band is newly downsampled using DWT. This approach
allows us to take more lines into consideration for interpolation. A
undecimated dual-tree complex wavelet transform based multidirectional feature
encoding plan is then newly applied since it provides better shift invariance
and directional selectivity.  Finally, a
binary code matching strategy with score level fusion is used to compute
matching for efficient identification. The experimental results obtained on
CASIA and PolyU datasets show that the presented method gives better results in
the blurring binary code matching case than state-of-the-art methods and
provides comparable performance in the non-blurring binary code matching.
Poultry Feed Dispensing System Control: A Case between Fuzzy Logic Controller and PID Controller
Authors: BALA Jibril , OLANİYİ Olayemi , FOLORUNSO Taliha , ARULOGUN Oladiran
Published: May 2019

The application of precision agriculture in
farming practices results in higher yield and productivity with lower costs.
Several works have applied this concept to poultry farming to reduce human
involvement, stress, fatigue, wastage of poultry feed and provide a high return
on investment. A number of these systems lack control techniques to improve the
system performance. A few works exist that implemented control techniques to
improve system response, but different systems were implemented and therefore,
a comparison cannot be made. In
this paper the performance comparison of the Fuzzy Logic Controller (FLC) and
the PID Controller on the Poultry Feed Dispensing System was evaluated in a
quest to determine the more efficient and effective controller. The system was modelled and simulated using MATLAB SIMULINK and the
performance was evaluated based on the rise time, settling time, overshoot and
Integrated Absolute Error (IAE). The results showed that the system implemented
with the PID and FLC performed better than the system without a control
technique. The PID gave a faster system response than the FLC in the solid feed
subsystem with a difference in rise time, settling time and IAE of 9.72
seconds, 11.68 seconds and 4.74 respectively. The FLC performed better in the
liquid feed subsystem with a difference in rise time, settling time, overshoot
and IAE of 9.22 seconds, 33.07 seconds, 13.92% and 7.18 respectively. This shows
that the PID controller is more suitable in the solid feed subsystem and the
FLC is more effective in the liquid feed subsystem.
Fate of Entanglement for Initial Separable States in Quantum Neural Network
Authors: KORKMAZ Ufuk
Published: May 2019

This study is related
to the fate of entanglement for initial separable states in a quantum neural
network (QNN) model, which is in contact with the data environments locally.
The duration of entanglement in quantum systems becomes extremely important
when we consider it as a valuable resource. Thus, the effects of various
initial states on the occurrence or decay of entanglement are investigated in
the presence of information reservoirs. Especially in this study, central spin
model has been examined as a quantum version of neural networks by taking
inspiration from the biological models. Our model consists of a central spin
system with two nodes to which the nodes are coupled to independent spin baths.
Numerical results clearly show that different initial states have a profound
effect on the fate of the entanglement. It also shows that the entanglement
lifetime can be adjusted by regulating the reservoir states. The results can be
used in realistic communication network situations to improve the performance
of entanglement formation or distribution.
Nanoestructuración y experimentación de fibras proteicas para superficies textiles y moda sostenible
Authors: Castellanos Perilla Maitte Valeria , Sánchez Díaz Diana Carolina , Pataquiva Mateus Alis Yovana , Echeverry Ocampo María Alejandra , Dotor Robayo Angela Liliana , Ramos Kalmar Elizabeth
Published: May 2019

Con el fin de otorgar un aprovechamiento con valor agregado de la lana virgen proveniente del altiplano Cundiboyacense, se desarrollaron dos metodologías para proporcionarle propiedades mejoradas; la primera se centra en el suavizado de la fibra y la segunda en una nanoestructuración in situ basada en la adición de luz ultravioleta para promover el crecimiento de nanopartículas de plata (AgNPs) en la superficie de la fibra. Las AgNPs incorporadas en la estructura de la fibra previamente suavizada, proporcionaron un mejoramiento en las propiedades del textil, puesto que retrasaron la actividad microbiana, lo que se demostró mediante los halos de inhibición formados cuando las fibras estuvieron en contacto con P. aeruginosa y S. aureus.