bluuebunny/crossref_metadata_2025_split huggingface dataset:
Seleção de livros nas bibliotecas universitárias sob a ótica dos bibliotecários brasileiros
Authors: Albuquerque Daniela Eugênia Moura de , Silva Junior Antonio De Souza , Silveira Murilo Artur Araújo da 
Published: June 2021

Introdução: A seleção de livros é um processo complexo caracterizado por aspectos socioculturais, humanísticos, técnicos, em os critérios de seleção são fundamentais para nortear os bibliotecários nas tomadas de decisões. Objetivo: Tem como objetivo central identificar os critérios de indispensáveis para o processo de tomada de decisão de seleção de livros nas bibliotecas públicas universitárias brasileiras. Metodologia: Configura-se como uma pesquisa exploratória que utiliza a técnica de análise de conteúdo e de regressão linear múltipla em duas etapas: quantitativa e qualitativa. A amostra da etapa quantitativa foi composta por 140 respondentes e a realização da coleta de dados foi mediante a aplicação de questionários embasada na literatura científica nacional e internacional. Na etapa qualitativa a amostra foi de 15 entrevistados e os dados foram coletados através de entrevistas semiestruturadas. A análise e o diagnóstico dos dados quantitativos foram realizados a partir do desenvolvimento do método de regressão linear múltipla e os dados qualitativos foram por meio da análise pragmática da linguagem. Resultados: Conclui que o processo de seleção pode ser explicado através da variável atualidade da informação descrita como único utilizado pelos bibliotecários das Universitárias públicas do Brasil. Conclusões: Em contraponto a literatura, manter a informação atualizada se mostra como a função significativa, no tocante ao desenvolvimento de coleções, pelos bibliotecários das Universitárias públicas do Brasil.
Identificação de elementos para construção do vocabulário controlado: contribuições do diagnóstico de arquivo
Authors: Almeida Maria Fabiana Izidio de , Moreira Walter , Davanzo Luciana , Vitoriano Marcia Cristina de Carvalho Pazin 
Published: June 2021

Introdução: As organizações têm buscado o tratamento adequado de suas informações, isso perpassa a implantação da gestão documental, por meio dos seus instrumentos arquivísticos. Esta pesquisa fomenta discussões em torno de metodologia de diagnóstico de arquivo e construção de vocabulários controlados, atividades fundamentais para a implantação de uma gestão documental eficaz. Coloca-se como problema desta pesquisa: quais as contribuições da identificação da linguagem natural durante a realização do diagnóstico de arquivos para a elaboração de vocabulário controlado? Objetivo Apontar os meios para identificar a linguagem natural durante a realização do diagnóstico de arquivo para a construção do vocabulário controlado é o objetivo geral desta pesquisa. Metodologia: Utilizou-se de pesquisa exploratória, proporcionando um aprofundamento do objeto de estudo deste estudo. Resultados: Obteve-se como principal resultado que, a inclusão da análise da linguagem natural da organização na realização de diagnóstico de arquivo é fundamental para a elaboração de vocabulário controlado, pois embasará os demais instrumentos arquivísticos. Aponta-se também os elementos que compõem um vocabulário controlado, como identificá-los no diagnóstico de arquivo e os produtos gerados a partir da sua elaboração. Conclusões: Fomentar e disseminar a necessidade dos arquivistas realizarem um diagnóstico de arquivo holístico incluindo a análise da linguagem natural, visando à construção de vocabulários controlados, contribuirá para uma gestão documental eficiente e eficaz.
O museu de zoologia como espaço formativo: uma experiência que vale a pena ser vivenciada
Authors: Santos Lucas Henrique dos , Jerep Fernando , Santos Adriana Regina de Jesus 
Published: June 2021

O presente artigo tem como objetivos: a) compreender a importância do Museu de Zoologia enquanto espaço formativo, e b) identificar como o museu de Zoologia pode auxiliar no processo de ensino e aprendizagem de alunos dos anos finais do ensino fundamental de uma escola pública localizada na cidade de Londrina, acerca dos conceitos de conservação ambiental e biodiversidade, tendo como parâmetro, os animais taxidermizados. Utilizamos como metodologia a pesquisa bibliográfica e de campo. Ao termino da pesquisa constatou-se que os alunos conseguiram conhecer o conceito e o contexto que envolve os animais taxidermizados, bem como, a necessidade de perceber a importância da relação entre o homem e a natureza no que tange a preservação do meio ambiente.
Covid-19 Serosurveillance Positivity in General Population: Comparison at Different Times
Authors: Prakash Om , Solanki Bhavin , Sheth Jay K , Shah Chirag , Kadam Mina , Vyas Sheetal , Shukla Aparajita , Tiwari Hemant 
Published: June 2021

Introduction: Serological surveys estimating the cumulative incidence of the disease are powerful and effective tools for monitoring the epidemic and in determining the immunity status.
Objectives: To compare the percentage sero-positivity for IgG antibodies against SARS-CoV2 at two different time period in the same population to understand the pandemic and predict about the immunity status of the population.
Methods: As a part of Covid19 pandemic management, two separate population based sero-survey within a gap of 1½ months were carried in Ahmedabad city to scientifically document the progress of the Covid19 pandemic. Various demographic factors and other parameters from both the survey were compared with seropositivity for valid and precise estimation of disease situation as well as immunity status of the population.
Results: The study documents an increase in seropositivity by 5.32% (from 17.92% to 23.24%). The seropositivity shows increasing trend with increase in the age group and the seropositivity is significantly higher among females. Overall higher seropositivity against the reported cases in the first sero-survey and the narrow increase in the seropositivity during the subsequent sero-survey inspite of high number of cases may indicate temporary status of the antibodies. This may also be due to the difference in the level of stigma, health care service delivery, service utilization and related field level situation affecting the asymptomatic/unreported case positivity.
Conclusion: The result of seropositivity comparison indicates the scopes for further research to confirm and generate greater evidences regarding the factors affecting seropositivity.
EFFECTIVE ESTIMATES FOR BOUNDARY VALUE PROBLEMS
Authors: YANG GOU-SHENG , LEU JYH-WEN 
Published: June 2021

We establish some effective estimates for the boundary value problems
\[ x^{(6)}(t)-\sum_{i=1}^5 p_i(t)x^{(i)}(t), x(a) = x'(a) = x''(a) = x'''(a) = x^{(4)}(a) = x(b) = 0; \]
and
\[ x^{(6)}(t)-\sum_{i=1}^5 p_i(t)x^{(i)}(t), x(a) = x'(a) = x''(a) = x(b) = x'(b) =x''(b)= 0. \]
SELF-FOCUSING AND SELF-TRAPPING OF SPHERCIAL BEAMS IN A NONLINEAR MEDIUM
Authors: NG KIN-CHUNG 
Published: June 2021

Self-focusing and self-trapping of optical beams are studied by obtaining the asymptotic solution of the nonlinear reduced wave equation
\[ \nabla^2 u +k^2n^2(|u|^2)u=0\]

in three dimensional space where the incident waves are assumed to be spherical waves . In order to discuss diffraction effects and self-focusing effects of the beam, the concepts of diffraction length and focal length are introduced. It is shown that diffraction effects and self-focusing effects occur in different regions. This means that diffraction cannot, in general, influence self-focusing. In the special case where diffraction effects and self-focusing effects are balanced, a self-trapped beam is shown to exist.
Integration of Forward Osmosis in Municipal Wastewater Treatment Applications
Authors: Kappa Stavroula , Malamis Simos 
Published: June 2021

In recent years, the research community has made constant efforts to develop new technologies for the recovery and valorization of water, nutrient and energy content of municipal wastewater. However, the recovery process is significantly limited due to the low-strength of sewage. Over the last 10 years, the Forward Osmosis (FO) process, has gained interest as a low-cost process with low membrane fouling propensity, which can convert municipal wastewater into a concentrated low-volume effluent, characterized by high organic and nutrient concentration. This chapter presents the main configurations that have been implemented for the concentration of municipal wastewater using FO, including their performance in terms of contaminant removal and water/reverse salt flux (Jw/Js). Furthermore, the draw solutions and respective concentrations that have been used in FO for the treatment of sewage are reported, while at the same time the positive and negative characteristics of each application are evaluated. Finally, in the last section of this chapter, the spontaneous FO followed by anaerobic process is integrated in a municipal wastewater treatment plant (WWTP) and compared with a conventional one. The comparison is done, in terms of the mass balance of the chemical oxygen demand (COD) and in terms of the energy efficiency.
Preterm Birth and Inflammation
Authors: Matyas Melinda 
Published: June 2021

Half of all preterm births are caused or triggered by an inflammation at fetal-maternal interface. The sustained inflammation that preterm neonates are exposed is generated by maternal chorioamnionitis, premature rupture of membranes. This inflammation will facilitate the preterm labor, but also plays an important role in development of disease like: bronchopulmonary dysplasia, necrotizing enterocolitis, retinopathy of prematurity, intraventricular hemorrhage and periventricular leukomalacia. Preterm neonates have immature immune system. The fragile co-regulation between immune defense mechanisms and immunosuppression (tolerance) is often disturbed at this category of patients. They are at high risk of sepsis due to this imbalance between the defense and suppression mechanisms but also several injuries can contribute to the onset or perpetuation of sustained inflammation. They experience altered antigen exposure in contact with hospital-specific germs, artificial devices, drugs, nutritional antigens, and hypoxia or hyperoxia. This is more significant at extremely preterm infants less than 28 weeks of gestation as they have not developed adaptation processes to tolerate maternal and self-antigens.
Theoretical and Experimental Study on the Functionalization Effect on the SERS Enhancement Factor of SiO2-Ag Composite Films
Authors: De León Portilla Paulina , Lilia González Ronquillo Ana , Sánchez Mora Enrique 
Published: June 2021

Herein we addressed a study to determine the enhancement factor (EF) of the Raman signal reached by composite films with two main components, Ag nanoparticles and SiO2 spheres. The study involves the synthesis, structural composition and optical response by using experimental techniques and theoretical-numerical modeling. A colloid with single NPs and agglomerates of them, with a tannic acid layer on its surface, was produced. Separately, porous SiO2 spheres were obtained. A mixture of both, Ag NPs and SiO2 particles was used to produce the films by solvent evaporation method. It is shown that single or agglomerated Ag NPs are preferentially located at the interstices of the SiO2 spheres. Using discrete dipole approximation, the SERS EF has been estimated considering the agglomeration and tannic acid layer. Both, the dielectric spheres and tannic acid layer diminish the electric field intensity and therefore the SERS EF. When a Ag NP with/without a dielectric shell is touching a SiO2 sphere, the EF is as high as 1 × 103, the zones where this value is reached are smaller when the dielectric layer is present. With a cluster of 3 nude Ag NPs surrounded by SiO2 spheres an EF of 2.4 × 103 is obtained.
Preventing Human Papilloma Virus through Community Education and Vaccination
Authors: Mulry Baldwin Celeste , Rinke Lisa 
Published: June 2021

Human Papilloma Virus (HPV) affects many members of the community. To better educate the community in a participatory manner, engaging those outside of the health care arena is necessary. To prevent the spread of the disease in the United States, reaching the parents of children at the vulnerable age of 9–11 years of age is critical. The barriers to education of parents and children around the spread of a sexually transmitted disease are vast and difficult to overcome. However, the use of proven vaccinations give healthcare providers and community advocates the main tool for prevention of the spread of the disease. It is often taboo to discuss anything related to sexual promiscuity or sexual activity in the United States in the public schools. The biggest myth includes the fear parents and grandparents have is that if HPV is talked about, then the child may become sexually active sooner. This myth needs to be challenged with science and reality including taking on the those vehemently opposed to vaccines, known as “Anti-Vaxers” that obstruct vaccine education. The strategies utilized in public health outreach to the community should be reviewed and uniquely developed for each diverse community to overcome the challenges in the prevention of HPV.
MtCOI DNA sequences from Sycanus aurantiacus (Hemiptera: Heteroptera: Reduviidae) provide evidence of a possible new harpactorine species from Bali, Indonesia
Authors: Sudiarta I Putu , Selangga Dewa Gede Wiryangga , Wirya Gusti Ngurah Alit Susanta , Yuliadhi Ketut Ayu , Susila I Wayan , Sumiartha Ketut 
Published: June 2021

Sycanus aurantiacus Ishikawa & Okajima, found in Bali, was first described in 2007 as a new harpactorine species based on morphological and biological characteristics; however, its genome has not yet been sequenced. In this study, we examine the mitochondrial cytochrome oxidase subunit I (MtCOI) nucleotide sequence of S. aurantiacus in order to determine whether it represents a new harpactorine species. A sample from Pancasari, Bali, Indonesia was collected at the same location S. aurantiacus was first discovered in 2007. The selected mtCOI gene (650 bp) was successfully amplified using mtCOI primer pairs LCO1490 and HCO2198, and the resulting MtCOI sequence of the S. aurantiacus sample was compared with those from other hapactorine species recorded in GenBank. This comparison revealed low genetic similarity between S. aurantiacus and most other harpactorine species worldwide, except for the Genus Sycanus (JQ888697) from USA whose mtCOI shares approximately 91% similarity with the Pancasari sample. Phylogenetic analysis indicated a close genetic relationship between Sycanus from Bali and the Genus Sycanus (JQ888697) from the USA. The mtCOI sequence of S. aurantiacus had not been recorded previously, and our comparison with existing Sycanus sequences provides support to the understanding that S. aurantiacus is indeed its own species.
Status and prospective of high-efficiency c-Si solar cells based on tunneling oxide passivation contacts
Authors: Ren Cheng-Chao , Zhou Jia-Kai , Zhang Bo-Yu , Liu Zhang , Zhao Ying , Zhang Xiao-Dan , Hou Guo-Fu ,   Institute of Photoelectronic Thin Film Devices and Technology of Nankai University, Tianjin 300350, China,   Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin 300350, China,   Engineering Center of Thin Film Photoelectronic Technology of Ministry of Education, Tianjin 300350, China,   Sino-Euro Joint Research Center for Photovoltaic Power Generation of Tianjin, Tianjin 300350, China
Published: June 2021

Current photovoltaic market is dominated by crystalline silicon (c-Si) solar modules and this status will last for next decades. Among all high-efficiency c-Si solar cells, the tunnel oxide passivated contact (TOPCon) solar cell has attracted much attention due to its excellent passivation and compatibility with the traditional c-Si solar cells. The so-called tunnel oxide passivated contact (TOPCon) consists of an ultra-thin silicon oxide layer less than 2 nm in thickness and a heavily doped poly-Si layer, which is used for implementing effective passivation and selective collection of carriers. This TOPCon solar cell has some advantages including no laser contact opening, no light-induced degradation and no elevated temperature-induced degradation because of N-type c-Si wafer, compatibility with high temperature sintering and technical scalability. This paper first introduces the basic structure and principles of TOPCon solar cells, then compares the existing methods of preparing ultra-thin silicon oxide layer and heavily doped poly-Si layer, and finally points out the future research direction of this cell based on the analysis of the current research status.
Helminth Parasites in the Gastrointestinal Tract of Oreochromis niloticus (Nile Tilapia) in Dadin Kowa Dam, Yamaltu Deba Local Government Area, Gombe State, Nigeria
Authors: Jemimah A. , Yahaya Y. M. , Murna T. , Rejoice A. , Bara’atu A. 
Published: June 2021

Aim: The aim of the study is to identify helminth parasites in the gastrointestinal tract of Oreochromis niloticus in Dadin Kowa Dam, Yamaltu Deba Local Government Area, Gombe State.
Study design: Oreochromis niloticus fish species were randomly obtained from the local fishermen in the landing sites; between 7:00am-10:00am weekly.
Place and duration of study: The study was carried out at Dadin Kowa Dam in Yamaltu Deba Local Government Area of Gombe State between the months of March to June, 2019.
Methodology: 60 Oreochromis niloticus (Nile Tilapia) were obtained and examined for gastro intestinal parasites. Sex of the fish was determined by the presence and absent of an intromittent organ. The total length, standard length and body weight was measured using standard method. Dissection was done using standard procedure and the Parasites recovered were identified using the helminth parasites of fish identification guide.
Results: Out of the 60 fish species examined. (23 female and 37 males), 21 (35.00%) were infected and were observed to habour six (6) endoparasites; viz nematodes, Cestodes and trematodes. The results show that there was a significant difference between infection rate, total length and weight of fish with female species having relatively higher percentage prevalence 11(43.50%) than the males 10 (29.70%). It was observed that the prevalence of parasitic infection increase with length and weight of the fish.
Conclusion: Presence of these fish helminth parasites may lead to devaluation in protein constant in the body of the fish. The work therefore recommends water quality assessment of Dams as it is one of the factors that bring about the increase in parasitic infection.
Comparative Assessment of Kukkutanda Pinda Sweda and Patra Pinda Sweda in the Management of Manyastambha (Cervical Spondylosis) - A Study Protocol
Authors: Verma Vivek Kumar , Parwe Shweta , Nisargandha Milind 
Published: June 2021

Background: At the present time, human beings are easily prone to get several degenerative disorders because of their stressful and reckless lifestyle. 'Manyastambha' is one such lifestyle disorder instigated from excessive use of vehicle, excessive travelling, continuous sitting and working for hours, jobs that require heavy lifting or a lot of bending and twisting, lack of exercise, unhealthy food habits and suppression of natural urges. Thus the avoidance is not possible, and a better curative area is to be identified. Ayurveda suggested many treatments for Vata vyadhi. The cervical problems mimic the Vata disorders. Thus the Vata managements of Kukkutanda pinda Sweda and Patrapinda Sweda through local apply manya-pradesh are better management for the identified clinical condition Manyastambha (Cervical Spondylosis) in the present study.
Aim: studies the effect of Kukkutand Pinda Sweda and Patra Pinda Sweda and compare the impact of both procedure in the management of Manyastambha (Cervical Spondylosis).
Objectives: To Comparative assessment of Kukkutanda Pinda Sweda and Patra Pinda Sweda in the Management of Manyastambha (Cervical Spondylosis). And to compare the effect of Kukkutanda pinda Sweda and Patra Pinda Sweda on pain, stiffness in neck bones and joints and X-rays Cervical spine and Goniometer Study.
Methodology: In this study, 60 patients will be divided randomly into two groups (30 in each). In Group (A) –Kukkutanda pinda Sweda will be externally administered a day at morning for 15-20 minutes or samyak swinna lakshan for 7 days. In Group (B) – Patra pinda Sweda will be externally administered a day at morning for 15-20 minutes or samyak swinna lakshan for 7 days, and an assessment will be recorded on 0 and 7th and 15th day.
Results: Changes will be observed in objective outcomes.
Conclusion: Based on the result conclusion will be drawn.
Protocol on Comparative Clinical Efficacy of Tryushanadi Guggul and Navaka Guggul in Sthoulya (Overweight)
Authors: Pardhekar Ashvini Dineshrao , Misar(Wajpeyi) Sadhana , Ade Vinod 
Published: June 2021

Background: Sthoulya is Medovaha Strotodushtijanya vyadhi, which includes abnormal and excessive accumulation of Medodhatu in the body. This is caused by lack of physical and mental activity, daytime sleep, excessive intake of madhur (sweet), snigdha ahar (oily diet) results in increase Kaphadosha and meda which results in Sthoulya (overweight) having symptoms of mild dysponea, thirst, drowsiness, excess sleep, appetite, offensive smell from the body, incapability to work and incapability to participate in sexual intercourse.
Aim: Comparative clinical efficacy of Tryushanadi Guggul and Navaka Guggul in Sthoulya (overweight).
Materials and methods: Total 60 patients of Sthoulya will enrolled and will divided into two groups (each group contains 30). Patients in group A (experimental group) will be given 1 gram Tryushanadi Guggul two times a day after meal with honey and in group B (control group)1 gram Navaka Guggul will administered two times a day after meal with honey for 30 days. Dietary changes and walking (30 minutes) will be advised to patients of both groups. Follow up will be taken on 15th day and 30th day. Assessment of subjective parameters like kshudrashwasa (exertional dyspnoea), swedadhikya (perspiration), atikshudha (increased appetite), nidradhikya (increased sleep) and objective parameters like body weight, B.M.I., mid arm circumference, waist-hip ratio and lipid profile will be done before and after treatment.
Results: Subjective and objectives outcomes will be assessed by statistical analysis.
Conclusion: It will be drawn from the result obtained.
Memory Seeds Enable High Structural Phase Purity in 2D Perovskite Films for High‐Efficiency Devices
Authors: Sidhik Siraj , Li Wenbin , Samani Mohammad H. K. , Zhang Hao , Wang Yafei , Hoffman Justin , Fehr Austin K. , Wong Michael S. , Katan Claudine , Even Jacky , Marciel Amanda B. , Kanatzidis Mercouri G. , Blancon Jean‐Christophe , Mohite Aditya D. 
Published: June 2021

Abstract2D perovskites are a class of halide perovskites offering a pathway for realizing efficient and durable optoelectronic devices. However, the broad chemical phase space and lack of understanding of film formation have led to quasi‐2D perovskite films with polydispersity in perovskite layer thicknesses, which have hindered device performance and stability. Here, a simple and scalable approach is reported, termed as the “phase‐selective method”, to fabricate 2D perovskite thin films with homogenous layer thickness (phase purity). The phase‐selective method involves the dissolution of single‐crystalline powders with a homogeneous perovskite layer thickness in desired solvents to fabricate thin films. In situ characterizations reveal the presence of sub‐micrometer‐sized seeds in solution that preserve the memory of the dissolved single crystals and dictate the nucleation and growth of grains with an identical thickness of the perovskite layers in thin films. Photovoltaic devices with a p–i–n architecture are fabricated with such films, which yield an efficiency of 17.1% enabled by an open‐circuit voltage of 1.20 V, while preserving 97.5% of their peak performance after 800 h under illumination without any external thermal management.