bluuebunny/crossref_metadata_2025 huggingface dataset:
Microorganismos tolerantes a metales pesados del pasivo minero Santa Rosa, Jangas (Perú)
Authors: Muñoz-Silva Loyer , Olivera-Gonzales Percy , Santillán-Torres Miguelina , Tamariz-Angeles Carmen
Published: April 2019

En el presente trabajo estudiamos el grado de tolerancia a metales pesados de hongos y bacterias aisladas de suelos con y sin rizósfera, con el propósito de conocer su potencial para aplicaciones en biorremediación. Las muestras procedían del pasivo minero de Santa Rosa de Jangas. Los hongos y bacterias aislados fueron identificados taxonómicamente mediante el análisis de la región ITS y 16S ADNr, respectivamente. El índice de tolerancia a metales pesados se calculó usando medio salino suplementado con 1 mM a plomo (II), cobre (II), niquel (II) o zinc (II), y 0.1 mM a plata (I), cromo (VI) o cadmio (II). En total se aislaron 23 hongos y 18 bacterias. Las cepas de hongos con mejores índices de tolerancia fueron: Fusarium temperatum CTLM05 (Pb+2), F. temperatum CTLM08 (Zn+2), F. oxysporum CTLM18 (Ni+2 y Cd+2), F. oxysporum CTLM12 (Ag+1), F. inflexumCTLM22 (Cu+2) y Penicillium vanluykii CTLM11 (Cr+6). Las cepas de bacterias con mayores índices de tolerancia fueron Bacillus licheniformis SSR18 (Cd+2, Ni+2 y Zn+2), B. subtilis SSR3 (Pb+2), Serratia sp. SSR15 (Cu+2), Serratia sp. SSR13 (Ag+1) y B. cereus SSR01 (Cr+6). También se encontró que los hongos mostraron mejores índices de tolerancia que las bacterias. Finalmente, los suelos del pasivo ambiental minero de Santa Rosa de Jangas poseen una microflora interesante, probablemente con mecanismos para su adaptación, crecimiento y desarrollo sobre metales pesados y pueden ser de utilidad para el desarrollo de procesos biotecnológicos y biorremediación.
Confirmación de una disyunción a escala continental del helecho Campyloneurum decurrens (Polypodiaceae)
Authors: León Blanca , Huamán Elluz , Smith Alan R.
Published: April 2019

Se confirma la presencia de Campyloneurum decurrens en el occidente de América del Sur en base a colecciones de herbario. Se reporta tres localidades adicionales para su distribución geográfica, dos en Perú y una en Ecuador y se provee de información morfológica adicional. Este reporte confirma también el patrón de disyunción entre la región del Bosque Atlántico en el sureste del Brasil y la de los bosques bajos de la amazonia peruana y del Chocó ecuatoriano.
In Memoriam Doctora Juana María Coha Gonzáles (1926-2017)
Authors: Alvarado Iparraguirre Débora , García-de-la-Guarda Ruth , Ramírez Roca Pablo
Published: April 2019

La Dra. Juana María Coha fue profesora de la Universidad Nacional Mayor de San Marcos, reconocida por su energía interna y personalidad intensa, la misma que podía percibirse en sus cursos y en particular en las conversaciones con sus alumnos. Con un gran afán de promover la investigación y resolver problemas del país, se convirtió en la guía de muchas promociones de microbiólogos. Juana María Coha Gonzáles, nació el 24 de junio de 1926 en la ciudad de Huacho y falleció el 22 de julio de 2017. Estas líneas son escritas por sus alumnos y discípulos que continuamos lo que ella forjó en sus líneas de investigación.
Assessment of probiotic effects on colorectal surgery complications: A double blinded, randomized clinical trial
Authors: Kakaei Farzad , Shahrasbi Mohammadreza , Asvadi Kermani Touraj , Taheri Sahar , Tarvirdizade Kowsar
Published: April 2019

Background: Probiotics are living bacteria, which can be used as a food supplement to produce inhibitory agents and compete with pathogens in the guts. Nowadays, because of the easy accessibility and misuse of antibiotics, probiotic usage is increasing. The goal of our study is to assess the effects of probiotics on colorectal surgery complications.

Methods: The enrolled cases were selected from colorectal surgery candidate patients, who referred to Sina and Imam Reza Hospitals of Tabriz University from April of 2016 to April of 2017. They were divided into two groups of study and control. For the study group, 7 days before surgery, one capsule of probiotics (Familact) was administrated every night, while the control group was given capsules of placebo.

Results: Although the infective complications, mortality ratio and duration of hospitalization in the study group were lower than the control group, these differences were not statistically significant. Discussion: Our study confirmed that preoperative probiotic consumption in colorectal surgery had not affected complications or mortality of surgery and this finding is in disagreement with some previous studies. Perhaps, other strains of bacteria or different dosage, duration and rout of administration can have positive effects on these complications.

Conclusion: This study showed that there was no correlation between probiotic consumption preoperatively and decreased complications or mortality after colorectal surgery.
A comparison study of insertion of spreader graft in the convex side in patients with deviated nose undergoing open septorhinoplasty
Authors: Mehdi Moosavizadeh Seyed , Mahmoudvand Hormoz , Nadri Sedigheh , Rouientan Abdolreza
Published: April 2019

Background: Correction of a crooked or deviated nose is a major challenge for rhinoplasty surgeons. In the present study we proposed to compare the aesthetic and functional results of unilateral grafting using spreader grafts on the convex side of the nasal deviation with those used on the concave side.

Methods: In this study, the technique and aesthetic and functional outcomes of the correction of crooked noses with spreader graft placement at either convex or concave side of the nasal deviation are presented.

Results: Unilateral spreader graft was used in 66 patients with C-type deviated nose. At the discretion of the rhinoplasty surgeon, the spreader graft was placed in the convex side of the nasal deviation in 33 patients (group A) and in the concave side of the nasal deviation in the remaining 33 patients (group B). During an average following-up period of 18 months (ranged from 8 to 36 months), there were no complications, infection, or graft extrusions. Functional evaluation was performed using a visual analog scale before and 4 months after surgery. Patients were asked to score their nasal breathing on a scale from 0 to 10. In group A (convex group), the mean preoperative score was 6.32+/-1.02 (ranging from 2 to 8), and the mean postoperative score was 2.03+/-1.01 (ranging from 0 to 4). In group B (concave group), the mean preoperative score was 6.76+/-1.10 (ranging from 2 to 8), and the mean postoperative score was 3.67+/-1.80 (ranging from 2 to 7). Patients with spreader graft at the convex side showed higher increase in angle measurements as compared to the patients with spreader graft in the concave side. Moreover, patients with spreader graft at the convex side were more likely to have excellent or good surgical outcomes (according to the degree of correction in the angle of deviation) as compared to patients with spreader graft in the concave side.

Conclusion: The use of the spreader graft is a safe and effective method for correction of crooked noses. We showed that speeder graft at the convex side of C-type nose deformity provided better aesthetic and functional results as compared to the placement of the speeder graft in the concave side of the nasal deformity.
La revolución no es un sueño eterno: La parodia de la militancia setentista y la cuestión del aprendizaje ideológico en No velas a tus muertos (1986) de Martín Caparrós
Authors: Conde De Boeck José Agustín
Published: April 2019

Entre 1988 y 1991, Martín Caparrós dirigió Babel, una de las revistas más importantes del campo literario argentino de post-dictadura. El grupo de autores nucleados en torno a esta publicación –Alan Pauls, Daniel Guebel y el propio Caparrós, entre otros– propuso una nueva lectura del canon literario nacional, así como una serie de poéticas que, opuestas al realismo social y al Boom latinoamericano, buscaban renovar el panorama con narrativas exóticas, metaliterarias y experimentales que, en su momento, fueron leídas como obras despolitizadas. En este trabajo realizamos un estudio de la primera novela de Martín Caparrós, No velas a tus muertos (1986), una de las primeras ficciones escritas en Argentina en torno a la militancia juvenil durante los años setenta. La particularidad de esta novela consiste en ser la única del grupo que aborda la cuestión evadida por los babélicos: la política y la historia reciente. A partir de un estudio del campo literario del momento, así como del diálogo intratextual con otras obras del autor, analizaremos las implicancias de ciertas categorías que entran en juego en un texto donde están en tensión las disyuntivas entre realismo y anti-realismo, literatura política y vanguardia experimental, testimonio militante y parodia conservadora.
DESIGN AND MODELING OF LADIES' CLOTHING WITH A STUDY OF THE DECORATIVE FEATURES OF THE BULGARIAN FOLK COSTUME FROM THE PIRIN REGION
Authors: Kosinkova-Stoeva Angelina
Published: April 2019

For many centuries the Bulgarian costumes have been one of the main objects of Bulgarian artistic creativity. High artistic embroidery, types of fabrics, patterns, shapes are a source for revealing the ethnic unity and diversity of traditional Bulgarian culture. The great wealth of decorative elements of the folk costume in the Pirin region, distinguished by its inimitable variety and color, are the basis for the creation of designs and designs for modern ladies' garments. The aim of the present work is to trace and explore the historical development of the traditional folk costume in the Pirinan region and to design modern women's clothing using the decorative elements of the authentic costumes.
A Call to Improve Conditions for Conducting Holistic Review in Graduate Medical Education Recruitment
Authors: Williams Christopher , Kwan Brian , Pereira Anne , Moody Ebony , Angus Steven , El-Bayoumi Jehan
Published: April 2019

This article was migrated. The article was marked as recommended. The authors identify several components of the application for residency and fellowship recruitment that impede progress toward conducting holistic review in graduate medical education (GME). As well, important differences between undergraduate (UME) and graduate medical education (GME) recruitment are discussed. The authors call for inclusion of questions about family background and disadvantaged status in the GME application, which is a standard practice within applications for health professions. The second recommendation encourages a question about non-cognitive strengths. Many specialties have adopted standardized letters of recommendation (SLORs) or standardized letters of evaluation (SLOEs) that collect this information from letters writers. Programs and applicants would benefit from uniformity across specialties. The authors also call for a centralized, searchable database that provides applicants with each program's mission, educational goals, and alumni outcomes. To support this paradigm shift in GME recruitment, reinforced with new Accreditation Council for Graduate Medical Education standards in July 2019, a task force should provide theoretical, evidence-based reasoning, along with development of new tools.
Ethnoecology and socioeconomic around an artificial reef: the case of artisanal fisheries from southeastern Brazil
Authors: Lima Juliano Silva , Zappes Camilah Antunes , Di Beneditto Ana Paula Madeira , Zalmon Ilana Rosental
Published: April 2019

Abstract: The objective of this study is to describe the ethnoecological aspects, valorization, and commercialization of target species caught by artisanal fishers on the northern coast of Rio de Janeiro, southeastern Brazil. The data were obtained through semi-structured interviews conducted with 60 fishers from the fishing community of Guaxindiba (21°29'S, 41°00'W), which is associated with the Z-1 fishers' colony. Eighty-nine species were cited by the fishers and 44.1% are important commercial fish in the region. The fishers cited five distinct zones used to fish: border zone (68 species), estuary (41 spp.), artificial reef (27 spp.), "malacacheta" (24 spp.), and open ocean (10 spp.). The fishery resources were classified according to their gastronomic and economic characteristics: primary fish (35 spp.), secondary fish (32 spp.), mixed fish (10 spp.), discarded fish (7 spp.), and fish used as bait (5 spp.). The price of the target species increases along the production chain due to the greater number of people involved, processing costs, and improvement of the product. The data from this study can contribute to local fisheries management and point out to the use of artificial reefs in the maintenance of fishery resources in northern Rio de Janeiro.
Protein-to-creatinine urinary in the early diagnosis of renal injury in canine pyometra
Authors: Sant’Anna Marcos C. , Martins Guilherme F. , Flaiban Karina K.M.C. , Trautwein Luiz G.C. , Martins Maria I.M.
Published: April 2019

ABSTRACT: Kidney disease that affects bitches with pyometra may lead patients to develop chronic renal failure even after pyometra treatment. Therefore, several studies have sought to clarify the gaps in the understanding of the pathogenesis of renal injury in pyometra. Identification of early detection markers for renal damage, which can predict and identify the prognosis of the disease, is very important. Proteinuria analysis can diagnose kidney damage, since proteins such as albumin are not filtered through the glomerulus and those that undergo glomerular filtration are almost completely reabsorbed by tubular cells. The objective of this study was to evaluate whether the urinary protein-to-creatinine ratio (UPC) can detect renal injury in bitches with pyometra before development of azotemia. For this, 44 bitches with pyometra were divided into two groups: bitches with azotemic piometra (A, n=15, creatinine >1.7) and bitches with non-azotemic pyometra (NA, n=29). The two groups were compared to the control group (CG, n=12), which had no signs of systemic disease. All animals underwent blood and urine tests. Leukocytosis was more evident in bitches in the A group than in the other groups. This shows that the inflammatory response may be associated with the pathogenesis of renal injury. The median UPC in bitches with pyometra was significantly higher than in the CG, with a median above the reference values. In conclusion, the UPC can be used in bitches with pyometra to detect renal damage before the development of azotemia. It has been suggested that the UPC of bitches with pyometra should be followed through during the postoperative period so that permanent renal lesions secondary to pyometra can be diagnosed and treated properly before the development of azotemia.
Causes of death and euthanasia in domestic cats in the Santa Catarina plateau (1995-2015)
Authors: Withoeft Jéssica A. , Cristo Thierry G. , Biezus Giovana , Costa Leonardo S. , Pont Tainah P. Dal , Freitas Amanda C. , Traverso Sandra D. , Casagrande Renata A.
Published: April 2019

ABSTRACT: Knowledge about the causes of death in felines constitutes important information to owners, veterinarians, and researchers, aiming at reducing the number of deaths in this species. In order to determine the main causes of death or euthanasia in cats in the Santa Catarina plateau, data from 1995 to 2015 available in necropsy files of the Laboratory of Animal Pathology (LAPA) of the State University of Santa Catarina (UDESC) were collected and evaluated. In that period, 1,728 cats were necropsied, mainly males (46.12%) and adults (50.11%). The mean ages at death for kittens, adults, and elderly were 5.07 months, 3.9 years, and 13.9 years, respectively. Of the 1,728 necropsy reports assessed, the cause of death was identified in 1,184 (68.52%) cases. The main cause of death was associated with infectious diseases (15.8%), with prevalence of feline infectious peritonitis (29.76%), followed by neoplasms (11.98%) with lymphoma (44.93%) and leukemia (16.91%) as the most common, and traumas (11.81%) mainly caused by motor vehicle accidents. These results show the need for owner awareness, as well as establishment of prophylaxis and vaccination programs, aimed at reducing the number of deaths and thus increasing life expectancy in the feline population.
Detection of Enterobacteriaceae, antimicrobial susceptibility, and virulence genes of Escherichia coli in canaries (Serinus canaria) in northeastern Brazil
Authors: Beleza Antonio Jackson F. , Maciel William C. , Carreira Arianne S. , Bezerra Windleyanne G.A. , Carmo Cecilia C. , Havt Alexandre , Gaio Fernanda C. , Teixeira Régis S.C.
Published: April 2019

ABSTRACT: This study aimed to verify the presence of members from the Enterobacteriaceae family and determine antimicrobial susceptibility profiles of the isolates in canaries bred in northeastern Brazil; in addition, the presence of diarrheagenic Escherichia coli (DEC) and avian pathogenic Escherichia coli (APEC) was also verified in these birds. Samples were collected during an exhibition organized by the Brazilian Ornithological Federation in July 2015 in Fortaleza, Brazil. A total of 88 fecal samples were collected and submitted to pre-enrichment step using buffered peptone water, followed by enrichment with the following broths: brain-heart infusion, Rappaport-Vassiliadis, and Selenite-Cystine. Subsequently, aliquots were streaked on MacConkey, brilliant green and salmonella-shigella agar plates. Colonies were selected according to morphological characteristics and submitted to biochemical identification and antimicrobial susceptibility tests with disk-diffusion technique. E. coli strains were evaluated for the presence of eight DEC genes and five APEC genes through conventional polymerase chain reaction (PCR) screening. The most frequent species observed were Pantoea agglomerans (25%), Serratia liquefaciens (12.5%), and Enterobacter aerogenes (9.1%). A single rough strain of Salmonella enterica subsp. enterica was identified in one sample (1.1%). High resistance rates to amoxicillin (78.7%) and ampicillin (75.4%) were identified. Polymyxin B (9.8%), gentamycin (6.6%), and enrofloxacin (6.6%) were the most efficient antibiotics. The total number of multidrug-resistant strains (isolates resistant to more than three antimicrobial classes) was 23 (37.7%). Four E. coli strains were tested for the virulence genes, and two were positive for APEC virulence genes: one strain was positive for iutA and the other for hlyF. In conclusion, canaries in northeastern Brazil participating in exhibitions may present Salmonella spp., Escherichia coli and other enterobacteria in the intestinal microbiota with antimicrobial resistance. These results indicate that, although the E. coli strains recovered from canaries in this study have some virulence genes, they still do not fulfill all the requirements to be considered APEC.
Grayscale histogram analysis to study the echogenicity and echotexture of the walls of the common carotid arteries of horses and mules
Authors: Fogaça Jéssica L. , Vettorato Michel C. , Puoli-Filho José Nicolau P. , Fernandes Marco A.R. , Machado Vânia Maria V.
Published: April 2019

ABSTRACT: Visual inspection of ultrasound examination for assessment of echogenicity and echotexture of blood vessel tissues is a technique routinely used in medical practice in humans. However, simple visual inspection can lead to poor quality diagnoses and errors. The use of grayscale histogram (GSH) analysis has proved to be an efficient technique to quantify the region of interest, allowing minimization of image interpretation errors. This study aimed to evaluate and compare the echogenicity and echotexture of the walls of the common carotid arteries of healthy female horses and mules using the GSH technique and correlate them with age, body mass, and vessel diameters. B-mode ultrasound examinations were performed in the left and right common carotid arteries in three regions (cranial, middle, and caudal) in 11 horses and 11 healthy mules. The GSH of the animals showed heterogeneous walls, but did not differentiate statistically between female horses and mules. The Mean variable of the middle right, middle left and caudal right sides showed differences, more significant in the mules. On the middle right side, the Min variable was different, higher in the mules. On the middle and caudal left side, the variables Max and Mode showed higher values in the mules. For the mules, the age factor presented negative correlation with the Mean, Mode,, Mode(Count), and Mode(Count)/Count(%) variables, and the body mass factor presented negative correlation with the Mode, Mean and Max variables. For the female horses, the body mass factor showed positive correlation with the Mean and Mode variables. Echogenicity of the carotid artery walls differed between female horses and mules, whereas echotexture was heterogeneous and statistically similar among the animals. The age and body mass factors inversely influenced the echogenicity of the mules, but were not significant in the female horses, in which only the body mass factor positively influenced echogenicity.
Bovine rabies: economic loss and its mitigation through antirabies vaccination
Authors: Mello Ana Karla M. , Brumatti Ricardo C. , Neves Danielle A. , Alcântara Lilian O.B. , Araújo Fábio S. , Gaspar Alberto O. , Lemos Ricardo A.A.
Published: April 2019

ABSTRACT: Rabies is among the most common neurological disease in cattle in Brazil, causing significant economic losses. Data on the economic impact of rabies in livestock are available in several countries. However, in Brazil, these data focus mainly on the public health point o view, emphasizing the costs related to the prevention of rabies in humans, in dogs, or wildlife. Specific studies carried out in different regions of Brazil indicate critical economic losses caused by rabies in cattle in this country. However, the studies on the losses caused by the disease in cattle lack a detailed analysis of the affected rural properties based on data from official disease control agencies. The objective of this work was to evaluate the economic impact of bovine rabies, and its mitigation through antirabies vaccination in rural properties in Mato Grosso do Sul, Midwestern Brazil.
BACHARELADO INTERDISCIPLINAR EM SAÚDE DA UNIVERSIDADE FEDERAL DA BAHIA (UFBA): FATORES DE ESCOLHA DOS ESTUDANTES INGRESSOS
Authors: Veras Renata Meira , Baptista Carolinne Montes
Published: April 2019

Resumo Baseado no modelo de ciclos, os Bacharelados Interdisciplinares da XXX se configuram pela formação interdisciplinar e não profissionalizante. Por ser o primeiro ciclo, os estudantes podem, após seu término, migrar para um Curso de Progressão Linear (CPL), para a pós-graduação ou para o mercado de trabalho. Esse artigo tem como objetivo identificar os fatores predominantes na escolha dos estudantes pelo Bacharelado Interdisciplinar em Saúde. Utilizando a pesquisa qualitativa, participaram da pesquisa 14 estudantes desse curso. Foram utilizadas entrevistas semiestruturadas e grupos focais. Os resultados, analisados a partir da análise de discurso, demonstram que os estudantes procuram o BI de saúde por almejar um CPL, especialmente Medicina, a partir da expectativa de ascensão econômica e social. No entanto, os relatos também indicaram que o caráter interdisciplinar do curso contribuiu para que a escolha pudesse ser feita pelos estudantes de forma mais elaborada e refletida.
As cigarreiras revoltosas e o movimento operário: história da primeira greve feminina do Recife e as representações das mulheres operárias na imprensa
Authors: Souza Felipe Azevedo e
Published: April 2019

Resumo A greve das cigarreiras de 1903 foi encetada pela demissão das primeiras quatro mulheres a ingressarem no movimento operário do Recife. Com o objetivo de compreender as motivações que levaram essas trabalhadoras a se organizarem politicamente, este artigo analisa os eventos em torno da greve e as representações sociais que situavam o trabalho de mulheres em fábricas como uma prática moralmente reprovável. O exame das questões propostas evidencia que as cigarreiras se apropriaram das plataformas de ação fornecidas pelo movimento operário para conquistar visibilidade em um processo de estabelecimento de uma identidade de gênero relacionada ao trabalho.
A construção do espaço cívico: monumentos e rituais de memória na Natal republicana (1902-1922)
Authors: VIANA HELDER DO NASCIMENTO
Published: April 2019

RESUMO O artigo analisa o processo de formação do espaço cívico na cidade de Natal entre 1902 e 1922. Procura compreender o papel central dos historiadores locais e do Instituto Histórico e Geográfico do Rio Grande do Norte na construção de uma memória pública republicana por meio do agenciamento de artefatos, da ressignificação de locais públicos e da prática dos rituais cívicos. A pesquisa visa compreender como a nomeação e renomeação de ruas e logradouros, a criação de praças, o entalhamento e a instalação de estátuas, bustos, lápides, hermas e quadros, a identificação de “sítios históricos” e o estabelecimento de espaços edificados para abrigar relíquias e “objetos históricos” colecionados, bem como as celebrações históricas de personagens e de acontecimentos dignos de nota foram importantes na construção de uma identidade coletiva na qual a consciência histórica deveria ter um lugar relevante.
Pteridophytes as ecological indicators: an overview
Authors: Della Aline Possamai , Falkenberg Daniel de Barcellos
Published: April 2019

ABSTRACT The pteridophytes present a great but poorly explored potential as ecological indicators (EIs), shown only in some sparse studies. Therefore, to analyze this potential, we reviewed published articles, websites, or books with pteridophytes as EIs, searching on five scholar databases and also on Google. We selected 134 studies, conducted in all continents (118 in mainland areas and 16 in islands). Brazil is the country with the highest number of studies (N = 33). In general, several species were considered as EIs in a given study, not only a single. The use of Pteridophytes in these works was classified in seven different types: a) classification of vegetation, soils, environments, and ecosystems (N = 65), b) environmental integrity (or quality) (N = 21), c) disturbance (N = 17), d) regeneration/restoration of habitats and/or ecosystems (N = 10), e) climate changes (N = 10), f) contamination of air, soil, or water (N = 14), and g) association with other groups of organisms (N = 12). The vast majority of these studies merely hypothesized the potential use of the Pteridophytes as EIs, with few presenting helpful criteria for the selection of EIs. Although there is an increasing recognition of the potential use of Pteridophytes as EIs, a more in-depth discussion about the criteria for selecting Pteridophytes as indicators and the real uses of such plants is needed.
A procedure for correcting the position of plant tissue samples in accidentally polymerized glycol methacrylate resin
Authors: Leitão Carlos André Espolador
Published: April 2019

ABSTRACT Glycol methacrylate resin is a very convenient medium used for inclusions of various types of tissue for histological and cytological studies. It provides excellent mechanical support in the sectioning of samples, even the ones with big differences in hardness. Additionally, it allows a large range of stain techniques and histochemical tests. During the infiltration stage, especially if it lasts for several days, the resin may be accidentally polymerized, which may give the impression that the sample has been lost. The present work aims to provide a technique for correcting the position of plant tissues samples embedded in accidentally polymerized glycol methacrylate resin. For this purpose, blocks of resin accidentally polymerized containing plant samples were trimmed and reshaped appropriately. The results were satisfactory and it was possible to obtain good sections of three micrometers thick.
Heating properties of ERHCM molds based on heating cell units
Authors: Jiang Shaofei , Zhou Hangchao , Li Jiquan
Published: April 2019

A thermal analysis method was developed based on heating cell units to study the thermal response of electrical rapid heat cycle molding (ERHCM) molds. Heating efficiency, mold strength and uniformity of temperature distribution on the mold cavity surface were studied as a function of the distance from the center of heating rods to the mold cavity surface, which is one of the most important parameters for mold design. In this paper, the height/diameter (H/D) value was employed to describe the distance from the center of the heating rods to the mold cavity surface. Additionally, the maximum von Mises stress after heating was determined to describe the mold strength, and the temperature difference was applied to characterize the temperature distribution uniformity of the cavity surface. The results showed that electrical rapid heating cycle injection molds obtain reasonable heating efficiency, mold strength and cavity surface temperature uniformity when the distance from the center of heating rods to the mold cavity surface is approximately 1–1·5 times their diameter.
A historical perspective on unconfined seepage: correcting a common fallacy
Authors: Wesley Laurence D , Preene Martin
Published: April 2019

It is commonly assumed in seepage studies for geotechnical problems that the phreatic surface (the line of zero pore water pressure) represents the upper flow line and is the boundary of the seepage zone. Seepage is assumed to occur below the phreatic surface but not above it (this is termed the ‘phreatic assumption’). A brief historical review is given of the development of seepage theory and how this assumption became established. It is explained that this assumption is true only if the soil involved is coarse grained when the majority of the pore water above the phreatic surface will drain out of it under gravity forces. The assumption is not valid for fine-grained soils such as clay, in which case water is held in the soil pores by capillary forces for many metres above the phreatic surface and seepage occurs above the phreatic surface according to the same laws as below it. Examples are given of correct flow nets for unconfined seepage in clay compared with those routinely adopted in soil mechanics.
Dezavantajlı Gruptaki Çocuklarla Eğitim Süreci: Sınıf Öğretmeni Adaylarının Görüşleri
Authors: GÜRDOĞAN BAYIR Ömür
Published: April 2019

Toplumda yetersiz koşullarda içinde yaşayan ve bu

koşullara bağlı olarak bazı yetersizliklerle baş etmek durumunda kalan gruplar

dezavantajlı gruplar olarak tanımlanabilir. Günümüzde bu grupların eğitim

sorunları da ele alınması gereken önemli bir sorundur. Bu bağlamda bu grupta

yer alan çocukların eğitsel gereksinimlerinin dikkate alınması bakımından sınıf

öğretmeni adaylarının bu konuya ilişkin farkındalığı önem taşımaktadır. Söz

edilen önemden yola çıkarak bu araştırmanın amacı,  sınıf öğretmeni adaylarının dezavantajlı

grupta yer alan çocukların eğitim sürecine ilişkin görüşlerini belirlemektir.

Araştırma betimsel nitelik taşıyan bir araştırmadır. Araştırmanın

katılımcılarını ölçüt örnekleme dayalı olarak seçilen sınıf öğretmeni adayları

oluşturmaktadır. Araştırmanın verileri yapılandırılmış görüşme formu

aracılığıyla toplanmış ve tümevarım analizi ile analiz edilmiştir. Araştırmada

sınıf öğretmeni adaylarının dezavantajlı gruplarla eğitim sürecine ilişkin

görüşleri aile, çocuk, kurum/kişiler ve öğretim etkinlikleri temaları

çerçevesinde ele alınmıştır
Uluslararası Öğrenci Değerlendirme Programında Öğrencilerin Sosyoekonomik Özellikleri ile Okuma Becerileri Arasındaki İlişki
Authors: ERDOĞAN Elif , ACAR GÜVENDİR Meltem
Published: April 2019

Bu çalışmanın amacı, Uluslararası Öğrenci

Değerlendirme Programı (PISA) 2015 yılı verilerine göre öğrencilerin

sosyoekonomik özelliklerinin okuma becerileri ile ilişkisinin incelenmesidir.

Verilerin analizinde iki düzeyli hiyerarşik lineer model (HLM) kullanılmıştır. Bu çalışmaya PISA 2015 yılı öğrenci ve okul

anketlerinden elde edilen veriler dâhil edilmiştir. Öğrenci düzeyinde

ele alınan değişkenlerin hepsi; anne eğitim düzeyi, baba eğitim düzeyi ve ev

olanakları okuma becerileri ile

ilişkili bulunmuştur. Okul düzeyinde ele alınan değişkenlerden; nitelikli

öğretmen eksikliği, yerleşim yeri, okulda düzenlenen aktivite sayısı, öğrenci-

öğretmen oranı ve okul büyüklüğü okuma becerileri ile ilişkili bulunurken; okul

türü, eğitimsel kaynak eksikliği

ve aile katılımı değişkenleri ile okuma becerileri arasında herhangi bir ilişki

olmadığı sonucuna ulaşılmıştır.
Sınıf Öğretmenlerinin ve Anne-Babaların Gözünden Okul Aile İşbirliği
Authors: KILIÇ Zeynep
Published: April 2019

Okul-aile işbirliği çocukların sağlıklı gelişimlerini

sürdürebilmeleri ve okula hazırlanması amacı ile düzenlenen eğitim

etkinliklerini gerçekleştirmek için okulun ve ailelerin birlikte çalışmasını

ifade eder. Bu çalışmanın amacı sınıf öğretmenlerinin ve ilkokulda çocuğu

bulunan anne-babaların okul-aile işbirliğine yönelik algılarını ortaya

çıkarmaktır. Bu araştırmada temel nitel araştırma deseni kullanılmıştır.

Araştırmaya 140 sınıf öğretmeni ve 110 anne-baba katılmıştır. Araştırmanın

verileri, “Okul-aile işbirliği…..gibidir, çünkü………”cümlesinin yer aldığı açık

uçlu anket formu ile toplanmıştır. Bu kapsamda, sınıf öğretmenlerinin ve

anne-babaların okul-aile işbirliği kavramına yönelik algıları metafor yoluyla

belirlenmiştir. Verilerin analizinde tematik analiz kullanılmıştır. Elde edilen

bulgulara göre sınıf öğretmenlerinin ürettikleri metaforlardan 14 kategori;

anne-babaların ürettikleri metaforlardan ise 13 kategori oluşturulmuştur. Sınıf

öğretmenleri ve anne-babalar, okul-aile işbirliğine yönelik köprü, anahtar,

zincir, hava, kanal gibi metaforları üretmişlerdir.  

 
Okul Öncesi Eğitimde Ailelerin Kreş Tercihleri Ve Kreşlerden Beklentileri: Eskişehir Örneği
Authors: ÇEMREK Fatih , ÖZAYDIN Özer
Published: April 2019

Bu çalışmada

Eskişehir’de yaşayan ve çocukları kreşe giden ailelerinin kreş tercihi ve

kreşlerden beklentileri tespit etmeye çalışılmıştır. Bu amaçla araştırmacılar

tarafından bir anket formu hazırlanmıştır. Sözkonusu anket formu Eskişehir’de

yaşayan ve 2015-2016 öğretim yılında kreşe giden çocukları olan aileler

arasından rasgele seçilen 440 aileye 2015 Aralık-2016 Nisan ayı arasında

uygulanmıştır. Araştırmada kullanılan ankette yer alan sorular iki bölümden

oluşmuştur. Birinci bölümde ailelerin sosyo-ekonomik özelliklerine ilişkin

sorular yer almaktadır. İkinci bölümde ise, ailelerin kreş tercihi ve

kreşlerden beklentilerine ilişkin olarak beşli likert tipi 23 tutum sorusu yer

almıştır. Bu 23 sorudan alınan cevaplarla faktör analizi yapılmış ve sorular

beş faktörde yer almıştır.
Determination of water soluble arsenic by the Hydride Generation Method (FIAS) and Atomic Absorption v1
Authors: Grimaldo Zapata Ilse
Published: April 2019

Atomic absorption spectroscopy with hydride generation and flow injection system (Flow Injection Atomic Absorption Spectrometry, FIAS) is a procedure widely used for the quantification of arsenic, since it allows the analysis of a smaller amount of sample, decreases the production of residues and of arsine (whose toxicity is high) and also enables the automation of the technique. This method is applicable to the determination of arsenic in drinking water, surface, underground and residual samples. It is based on the protocol established in the reference. The detection limit of this method is 0.10 μg As L-1. By this method arsenic can be determined in a range of 0.10 to 10.00 μg As L-1, and by dilution at higher concentrations.
Metodología utilizada para predecir el perfil metabólico de un paciente definido por los polimorfismos en el gen CYP2C9 v3
Authors: guerrero salazar abidan
Published: April 2019

Un gran número SNPs se localizan en genes que codifican enzimas metabolizadoras de fármacos y transportadores, todos ellos importantes para determinar la respuesta clínica a tratamientos farmacológicos. La familia de proteínas del citocromo P450 representan las enzimas más importantes en la metabolización de los fármacos, ya el metabolismo implica una interacción compleja entre las diferentes enzimas oxidando una serie de sustratos endógenos y xenobióticos, incluyendo varios carcinógenos, toxinas y más del 90% de fármacos. Diversos estudios han demostrado una amplia variación en el contenido y actividad hepática del citocromo P450. Se sabe que algunas mutaciones genéticas pueden afectar la expresión enzimática y la actividad de muchos P450, particularmente los genes CYP2C9, CYP2C19, CYP2D6, CYP3A4 y CYP2B6, que además son de los más polimórficos. El objetivo de este trabajo es describir la metodología utilizada para predecir el perfil de metabolismo de un paciente definido por los polimorfismos presentes en el gen CYP2C9. Se extraerán 5 mL de sangre periférica en tubo con tapón lila con EDTA. Posteriormente, el ADN se obtiene por el método de “salting out”. La pureza del ADN extraído se determinará mediante espectrofotometría con el equipo NanoDrop 1000®. Para la genotipificación se utilizará un microarreglo comercial Axiom® Precision Medicine Research Array de Affymetrix; además del análisis de datos obtenidos de secuenciación de nueva generación.
Metodología utilizada para predecir el perfil metabólico de un paciente definido por los polimorfismos en el gen CYP2C9 v4
Authors: guerrero salazar abidan
Published: April 2019

Un gran número SNPs se localizan en genes que codifican enzimas metabolizadoras de fármacos y transportadores, todos ellos importantes para determinar la respuesta clínica a tratamientos farmacológicos. La familia de proteínas del citocromo P450 representan las enzimas más importantes en la metabolización de los fármacos, ya el metabolismo implica una interacción compleja entre las diferentes enzimas oxidando una serie de sustratos endógenos y xenobióticos, incluyendo varios carcinógenos, toxinas y más del 90% de fármacos. Diversos estudios han demostrado una amplia variación en el contenido y actividad hepática del citocromo P450. Se sabe que algunas mutaciones genéticas pueden afectar la expresión enzimática y la actividad de muchos P450, particularmente los genes CYP2C9, CYP2C19, CYP2D6, CYP3A4 y CYP2B6, que además son de los más polimórficos. El objetivo de este trabajo es describir la metodología utilizada para predecir el perfil de metabolismo de un paciente definido por los polimorfismos presentes en el gen CYP2C9. Se extraerán 5 mL de sangre periférica en tubo con tapón lila con EDTA. Posteriormente, el ADN se obtiene por el método de “salting out”. La pureza del ADN extraído se determinará mediante espectrofotometría con el equipo NanoDrop 1000®. Para la genotipificación se utilizará un microarreglo comercial Axiom® Precision Medicine Research Array de Affymetrix; además del análisis de datos obtenidos de secuenciación de nueva generación.
Electroforesis de células individuales (linfocitos) "Ensayo cometa" v1
Authors: Jiménez Azucena , Jiménez Azucena
Published: April 2019

Se utiliza para determinar el daño en el material genético de las células, fragmentación del ADN, causado por agentes físicos o químicos. En una cama de agarosa se coloca una alícuota de muestra sanguínea, misma que se somete a un proceso de lisis celular para destruir eritrocitos, luego mediante electroforesis alcalina de bajo voltaje, los fragmentos de ADN migran a través de la agarosa, dicha preparación se tiñe con gel green, un colorante fluorescente que permite observar el daño producido en linfocitos.
CULTURAL-EDUCATIONAL TOURISM DEVELOPMENT IN UKRAINE: KAMYANETS-PODILSKY
Authors: Uliganets S. , Arion O. , Bol D.
Published: April 2019

Features of the cultural-educational tourism development as one of becoming more popular among tourists are considered here. Its development in Kamyanets-Podilsky as one of the tourist centres with a strong historical and cultural potential is described. In this paper the SWOT analysis of strengths and weaknesses, opportunities and threats are presented in order to determine the prospects and problems of cultural and educational tourism development in the research area.
According to its purpose, the SWOT analysis of cultural-educational tourism in Kamyanets-Podilsky is a “tool” for introducing realistic action plans in Kamyanets-Podilsky city, in which, along with medium-term strategic goals, short-term operational goals will be defined, their own projects namely. On the one hand, the implementation of these projects should weaken the influence of the weaknesses of the city, with the simultaneous strengthening of its strengths. On the other hand, to contribute fully, avoiding threats, to the use of opportunities that may arise out of external forces.
Research Issues Involving the Biology of Autism
Authors: Edelson S.M.
Published: April 2019

This article provides an overview and discussion on many of the major topics currently discussed in the autism research community. These topics include: prevalence, male-to-female ratio, diagnosis, genetics, environmental factors, neurology, medical comorbidities, sensory processing, and behavior. The article concludes with a discussion of future research in the field of autism.
Omental infarkt: Olgu sunumu
Authors: Yalnız Ahmet , Sezikli Mesut , Çilek Balimre Burcu , Uyar Ali Alpaslan
Published: April 2019

Omental enfarktüsü, omentum majusun perfüzyonunun bozulmasına bağlı
olarak akut karını taklit eden nadir bir patolojidir. Hastalığın ayırıcı
tanısında akut kolesistit, akut apandisit, akut divertikülit, renal kolik,
kolon perforasyonu düşünülmelidir. Yedi gündür olan sağ üst kadran ağrısı
şikayeti ile başvuran 52 yaşında kadın hastayı sunuyoruz. Abdomen bilgisayarlı tomografi incelemesinde, karaciğer sağ
anterior sınırında omentumun sağ ve sağ tarafında heterojenite ile karakterize
bir kitle görünümü ve yoğunluğunda bir artış gösteren hastanın konservatif
tedavi ile iki günün sonunda karın ağrısı önemli ölçüde azaldı. Özet olarak,
omental infarktüs, akut sağ taraflı abdominal ağrı için ayırıcı tanı olarak
düşünülmelidir.
The Importance of a Nursing Theoretical Framework for Nursing Practice: Rogers’ Science of Unitary Human Beings and Barrett’s Theory of Knowing Participation in Change as Exemplars
Authors: Malinski Violet
Published: April 2019

Martha E. Rogers (1970, 1990, 1992) was one of the first to maintain that nursing is both a science and an art, a learned profession based on an organized body of nursing-specific knowledge. Indeed, as early as 1963, she wrote, “Instruction in the theoretical basis of nursing practice is the hard core of baccalaureate education in nursing…professional nursing services cannot be provided unless the theoretical base is present” (1963, p. 61). Rogers saw the unique focus of nursing as irreducible human beings and environment, both identified as energy fields, with the purpose of nursing as promoting well-being and health throughout the life process, including dying. Nurses help people participate knowingly in the life process, actualizing potentials deemed commensurate with personal wellbeing. Together, nurses and clients participate mutually and knowledgeably to optimize potentials. Building on these assumptions, Elizabeth E. A. M. Barrett (1988, 2010, 2015) derived her theory of power as knowing participation in change and a tool to measure it while working with Rogers as a student in the doctoral program at New York University. The author provides a brief overview of both Rogers’ Science of Unitary Human Beings and Barrett’s theory of power as knowing participation in change and discusses their relevance to practice.
Yield and Yield Related Parameters of Tomato (Lycopersicon esculentum Mill.) Treated with Paclobutrazol at Different Stages in North West Ethiopia
Authors: Endegena Walelegn
Published: April 2019

The effects of Paclobutrazol (PBZ) on fruit yield of tomato (Lycopersicon esculentumMill.) were investigated by spraying it on tomato seedlings grown in an open field. The treatments were 5 x 2 factorial combinations including five rates of PBZ (control, 1 kg ha-1, 2 kg ha-1, 3 kg ha-1and 4 kg ha-1) and two times of application (at 2 to 4 and 6 to 8 true leaf growth stages of tomato seedlings), arranged in a Randomized Complete Block Design, each treatment replicated three times. The objective of the study was to characterize the effect of rate and time of application of PBZ on the yield and yield related parameters of tomato. Time and rate of application of PBZ significantly increased harvest index, yield concentration and index of economic earliness, and decreased fruit set percentage, pericarp thickness, fruit diameter and percentage of class one fruit. Irrespective of the time of application, an increase in the rate of PBZ compared to the control significantly increased days to fruit maturity. Time and rate of application of PBZ were significantly interacted to increase; unmarketable fruit yield but decrease means fruit weight. Compared to the control, the interaction effects also produced two significant trends of variations on fruit yield per plant, fruit dry weight per plant, marketable fruit yield and total fruit yield. Significant reduction in yields was observed for diluted concentrations like 1 and 2 kg/ha a.i. of PBZ in the second time of application and 1 kg/ha a.i. of PBZ in the first time of application, whereas all other treatments produced significantly higher yields than the controls. On the contrary, time and rate of application of PBZ were found to be effective in improving economic earliness of tomato. As a whole, time and rate of application of PBZ resulted in two significant trends of variations (increasing and decreasing) on fruit yields of tomato. Hence, it could be possible to propose that more assimilate reallocation to the fruits are significant advantage of PBZ treatments contributing to the improvement of seedling quality at planting for increased seedling survival rate, better stress protection, early and more fruit production.