bluuebunny/crossref_metadata_2025 huggingface dataset:
Vinculación con la sociedad en el ámbito de la salud: USFQ más allá de su campus y sus aulas
Authors: Palacios León Iván
Published: April 2021

La Escuela de Medicina de la Universidad San Francisco de Quito (USFQ), en convenio con el Ministerio de Salud Pública, implementa el Programa de Vinculación con la Sociedad en 16 comunidades de los valles de Tumbaco y Los Chillos desde 2016. El programa tiene como objetivos sociales apoyar los esfuerzos de la comunidad por conocer y cuidar su salud, y, como objetivos académicos, desarrollar competencias técnicas de los estudiantes en los campos de prevención de la enfermedad, promoción de la salud, y fortalecer el conocimiento sobre el humanismo de una manera práctica. El propósito de este artículo es compartir los logros, aprendizajes y retos del programa, así como dar a conocer los proyectos que los estudiantes implementan en las comunidades, bajo la supervisión de docentes y tutores de la USFQ y del Ministerio de Salud Pública. En la actualidad, el programa cuenta con 16 proyectos de prevención de la enfermedad y promoción de la salud en las áreas de envejecimiento saludable, enfermedades crónicas como diabetes e hipertensión arterial, prevención de cáncer cérvico uterino, salud materna, prevención de embarazo no deseado en adolescentes, apoyo a pacientes con capacidades especiales y sus cuidadores, salud infantil y prevención de VIH. Cada año, unas 8,000 personas de todas las edades se benefician con servicios directos otorgados por el programa.
“Física Creativa”, un espacio para compartir ciencia
Authors: Guitarra Silvana
Published: April 2021

“Física Creativa” es el proyecto de vinculación con la comunidad propuesto por el Departamento de Física del Colegio de Ciencias e Ingenierías de la Universidad San Francisco de Quito, que comprende dos actividades principales: Casa Abierta de Física y Physics-Van. El objetivo de este proyecto es generar amor e interés por la ciencia en estudiantes y en la comunidad en general, al proponer espacios donde la audiencia puede interactuar con experimentos que cubren distintas ramas de la Física. La preparación, desarrollo y ejecución involucra a estudiantes y profesores de la carrera, y los beneficiarios incluyen a un público que comprende un amplio rango de edad (4-60 años). Las actividades brindan a los visitantes un espacio para ser parte activa del proceso de aprendizaje, gracias a una interacción directa con los experimentos y los expositores, quienes, con un lenguaje adecuado, transmiten su conocimiento y responden las inquietudes planteadas. En estos cuatro años de ejecución, las actividades se han realizado en varias regiones del país y han sido acogidas con gran entusiasmo por los participantes.
"Agua para Galápagos": un programa de monitoreo de la calidad del agua en las islas Galápagos
Authors: Vernaza Wendy , Pozo Rodrigo , Mateus María Cristina , Quiroga Diego , Stewart Jill , Thompson Amanda , Raheem Nejem , Ochoa-Herrera Valeria
Published: April 2021

Las islas Galápagos se caracterizan por contar con fuentes limitadas de agua; por lo tanto, la conservación y protección del agua dulce es uno de los retos más difíciles de afrontar. La disponibilidad, calidad y tratamiento de aguas en cada isla es diferente, y está relacionada con la demanda de la población. En este artículo, presentamos la situación actual y los proyectos que desarrollamos relacionados con el recurso hídrico en tres islas: Santa Cruz, San Cristóbal e Isabela. En Santa Cruz, en conjunto con el Parque Nacional Galápagos (PNG), se generó una línea base de calidad del agua mediante un set de datos levantados durante nueve años por el PNG; además, se desarrolló un estudio sobre la percepción de la población sobre la calidad del agua, su satisfacción en cuanto al recurso y la disposición local a pagar por mejoras a este servicio. En San Cristóbal, se desarrolla el Programa de Monitoreo a largo plazo de calidad del agua; mientras que en Isabela se efectuó un proyecto piloto de monitoreo de la calidad del agua. Por último, en las tres islas se realizaron talleres de trabajo con gente local, representantes de instituciones públicas y privadas, ONG y estudiantes. Estos, además de dar a conocer los proyectos que se llevan a cabo en cada isla, permitieron identificar y priorizar las preocupaciones y dudas de cada comunidad acerca del manejo del agua y las estrategias mitigación al cambio climático. En este documento se presentan los resultados principales de cada actividad desarrollada, el estado de la calidad del agua en las tres islas y opiniones de las partes involucradas sobre las mejoras aplicables en las islas para obtener un recurso de calidad. Este proyecto de vinculación contribuye a los Objetivos de Desarrollo Sostenible (ODS) de las Naciones Unidas 3: Salud y Bienestar; 6: Agua Limpia y Saneamiento; 13: Acción por el ClimaM y 14: Vida Submarina. Finalmente, este programa contribuye de manera tangible a preservar y conservar el recurso hídrico en el archipiélago.
Conclusiones
Authors: Jordà Rafael , Miño Alejandra
Published: April 2021

Conclusiones
Inhibition of GPR4 attenuates SH-SY5Y cell injury in cerebral ischemia/reperfusion via anti-apoptotic pathways
Authors: Xing Chunli , Yan Guizhen , Liu Qishuai
Published: April 2021

Cerebral ischemia/reperfusion injury (CIRI) can lead to increased vascular endothelial permeability and blood-brain barrier damage in patients with stroke. G protein-coupled receptor 4 (GPR4) is a functional pH sensor that plays a key role in renal ischemia-reperfusion-induced apoptosis. However, whether GPR4 has a role in cerebral ischemia remains to be further studied. Our study found that after oxygen-glucose deprivation/reoxygenation (OGD/R) treatment, the levels of GPR4 and CHOP in SH-SY5Y cells were significantly increased, which was accompanied by a decrease in cell viability, and an increase in LDH release and apoptosis. After knockdown of GPR4 using shRNA, CHOP levels in SH-SY5Y cells were also decreased, which unexpectedly increased cell activity and decreased LDH release and apoptosis rate. Interestingly, CHOP overexpression reversed the effect of GPR4 knockdown, suggesting that OGD/R-induced CIRI may involve endoplasmic reticulum stress-related apoptosis. In conclusion, our study provided a basis for further research on the mechanism of CIRI.
TÜRKİYE’DE ÇEKİŞMELİ BEDENLERE GİRİŞ
Authors: ŞAHİNOL Melike , BAŞKAVAK Gülşah
Published: April 2021

Bu özel sayının ortaya çıkışı uzun bir düşünme ve tartışma sürecini barındırıyor. Bu süreçte beliren farklı disiplinden temalar, birbirini destekleyerek alana bilimsel katkı ve alanda var olan boşluğu doldurma amacıyla özgün bir dergi sayısını ortaya çıkardı. Fikrin doğuşu 2019 Eylül’de, “STS3 Turkey 2019 – Toplum için Bilim ve Teknoloji Çalışmaları Konferansı”’na özel bir oturum düzenlemesiyle başladı. “Türkiye’de Biyotıp ve Teknoloji Alanındaki Gelişmeler, Dönüşümler ve Yeni Düzenlemeler” başlığı ile düzenlediğimiz özel oturumda dört çalışma ile bir aradaydık. Sosyal bilimlerin dört farklı disiplininden gelmesine rağmen oturumda sunulan araştırmaların tümü tıp teknolojileri kesişimindeydi. Konferans boyunca canlı tartışmalar oldu ve ardından yeni fikirler gelişti. Bu alanda güncel araştırmaların ve teorik paylaşımların Türkçe literatürdeki zayıflığını ve hatta eksikliğini fark ettik. Benzer konulara odaklanan araştırmaları bir araya getiren özel bir dergi sayısı derlemeye karar verdik. Biz, sağlık ve tıp sosyolojisi, medikal antropoloji ve STS alanlarında/kesişimlerinde buluşan ve Türkiye’de gerçekleştirilmiş alan araştırmalarından hareketle özgün çalışmalar üretmekte olan ulusal ve uluslararası düzeydeki araştırmacıları sizlerle buluşturuyor olmaktan ötürü heyecan duyuyoruz.
TIBBİ GÖRÜNTÜLEME CİHAZLARI VE HEKİMLERİN MESLEKİ BAĞIMSIZLIĞI: ÇELİŞKİLİ BİR İLİŞKİ
Authors: ÇORBACIOĞLU Gül
Published: April 2021

Bu çalışma, en yaygın tıp teknolojilerinden olan tıbbi görüntüleme cihazlarının Türkiye’de hekimlerin mesleki bağımsızlığı üzerindeki etkisini incelemektedir. Tıbbi görüntüleme cihazlarının sunduğu olanaklar, hekimlerin otoritesini ve mesleki bağımsızlığını güçlendirmekte önemli bir rol oynamış, fakat aynı zamanda sağlık harcamalarının artmasına neden olmuştur. Bu harcamaları kontrol altına almak için 1970’lerden başlayarak sağlık hizmeti sunumu ve finansmanında gerçekleştirilen değişiklikler, hekimlerin, aralarında teknoloji kullanımı da olmak üzere, faaliyetlerini kontrol altına almayı ve denetlemeyi de amaçlamıştır. Bu değişikliklerin hekimlerin mesleki bağımsızlığı nasıl etkilediği, tıp sosyolojisi ve meslekler sosyolojisi alanında önemli bir yer tutmuştur. Bu çerçeveden yola çıkan çalışma, Ankara’da uzman hekimlerle yapılmış görüşmelere dayanarak, tıbbi görüntüleme cihazı kullanımı bağlamında hekimlerin mesleki bağımsızlıklarının boyutunu ve cihaz kullanımının hekimlik pratikleri üzerindeki etkilerini incelemektedir. Çalışma, bu inceleme için yalnızca teknolojinin hızı ve doğasını değil, hekimlerin sağlık hizmetleri alanındaki diğer aktörlerle kurdukları ilişkileri ve sağlık sistemin yapısal özelliklerini de ele almak gerektiğini ileri sürmektedir.
İNTERNET VE SAĞLIK BİLGİSİ: ANKARA’DA ALTMIŞ YAŞ ÜSTÜ KADINLARIN SAĞLIK BİLGİ KAYNAĞI OLARAK İNTERNET KULLANIMI ÜZERİNE SOSYOLOJİK BİR ARAŞTIRMA
Authors: ÜLKER Deniz Bilge
Published: April 2021

Bu makale, Ankara’da yaşayan farklı sosyo- ekonomik statüdeki altmış yaş üstü kadınların, internette sağlık bilgisi arama deneyimlerini tartışmaktadır. Makaleye kaynaklık eden veri, Aralık 2017 – Mart 2018 arasında ve Eylül 2019’da Ankara’da gerçekleşen derinlemesine mülakatlardan oluşan niteliksel bir araştırmanın sonuçlarına dayanmaktadır. Makale kuramsal olarak sağlık sosyolojisindeki meslek dışı yaklaşımı benimsemektedir. Meslek dışı yaklaşımına göre, meslekten olmayanların öznel sağlık ya da hastalık deneyimleri olmadan üretilen tıbbi bilgi eksik kalmaktadır. İnternetin sağlık bilgisi kaynağı olmasını ele alan çalışmaların birçoğu, internetin kullanıcıların sağlık bilincinin artışına etkilerine odaklanmaktadır. Bu araştırmalardan farklı olarak makale, meslek dışından olanların internette sağlık bilgisi arama deneyimlerinin anlaşılmasının, günümüz tıbbının hastalarla kurduğu iletişim açısından önemli veriler sağladığını öne sürmektedir.
DEVLET TARAFINDAN DÜZENLENEN ÜREMEYE YARDIMCI TEKNOLOJİLERİN KULLANIMI VE DEMOGRAFİK SÜREÇ
Authors: KILIÇTEPE Şafak
Published: April 2021

Türkiye, gittikçe azalan toplam doğum hızının (TDH) gelecekteki iş gücü açısından tehlike yaratacağına işaret ederek, on yılı aşkın bir süredir pronatalist nüfus politikaları uygulamaktadır. Türkiye İstatistik Kurumu verilerine göre Türkiye’nin TDH’si, genel olarak, yenilenme düzeyi olan 2.10’un altına düşmüş olsa da TDH bölgesel farklılıklar göstererek, bu bölgelerin demografik süreçlerinin farklılığına dikkati çekmektedir. Pronatalist nüfus politikaları doğrultusunda, devlet evli çiftlerin ilk üç tüp bebek tedavisini desteklemektedir. Ancak, yaygın olarak kullanılan tüp bebek ya da teknik ifadesiyle üremeye yardımcı teknolojilerin (ÜYT) erişimi ve kullanımı da devlet düzenlenmesi ve kontrolü altındadır. Etnisite ve toplumsal cinsiyet kategorilerinin bölgesel farklılık gösteren demografik süreçteki (evlilik, üreme ve boşanma ile ilgili kararları) yerini analitik olarak irdeleyen bu çalışma, Kürt kadınlarının üremeyle ilgili deneyimlerini merkezine almaktadır. Böylece, devlet tarafından düzenlenen ÜYT’nin demografik süreci nasıl etkilediğine bakıp, demografi ile ilgili veri ve istatistiklerin yereldeki sosyopolitik tarih ve yapı, iktidar ilişkileri, pratik ve inanışlarıyla beraber nasıl (yeniden) şekillenebileceğini göstermektedir.
ÜREMEYE YARDIMCI TEKNOLOJİ YASAKLARINA KARŞILIK PRATİK-RASYONEL DAVRANIŞ
Authors: EVSEL Gülsevim
Published: April 2021

Türkiye’de üremeye yardımcı teknolojiler (ÜYT) alanında, evli çiftlerin üreme süreçlerinde üçüncü kişilerin bedenleri ve üreme hücrelerinin kullanılması yasaktır ve bu yasağa uymayanlar birtakım yaptırımlarla cezalandırılmaktadır. Bu nedenle bu makale, Türkiye vatandaşlarının bu yasal yaptırımlardan ve toplumsal dışlanmalardan; yani her türlü cezadan kaçınmak için yasadışı yollara başvurmak ve Weber’in ifadesiyle pratik rasyonel davranış sergilemek durumunda kaldığını iddia etmekte ve bu iddiayı saha bulguları ile desteklemektedir. Bu çalışma, araştırmacının 2018 yılında taşıyıcı anneler, yumurta donörleri ve bu yollarla çocuk sahibi olan aileler ve embriyologlarla yüz yüze gerçekleştirdiği nitel görüşmelerden yola çıkarak, bireylerin çocuk sahibi olamamak veya çocuk sahibi olmak için başka bedenlere ihtiyaç duymaları konusunda yaşadıkları toplumsal baskıya ve/veya çevreleri tarafından küçük düşürülmeye karşı geliştirdikleri pratik-rasyonel yönelimlere odaklanmaktadır.
Fuzzy Phase Trajectories in Hemispherical Resonator Gyroscopes
Authors: Demenkov N.P. , Mochalov I.A. , Tran D.M.
Published: April 2021

The paper considers elementary fuzzy oscillator models represented by hard and fuzzy second-order differential equations with hard and fuzzy initial conditions. Linear models describe wave processes in ring resonators of hemispherical resonator gyroscopes.We show that in the case 1 (a hard model with fuzzy initial conditions), when there is no internal friction (model 1), phase trajectories appear as a fuzzy centre shaped as an elliptical ring. When internal friction is present (model 2), phase trajectories appear as a fuzzy focus shaped as a circular logarithmic spiral. In the case 2, for a fuzzy hemispherical resonator gyroscope model with hard initial conditions, when there is no internal friction (model 1), a representative point of a fuzzy phase trajectory does not stop or increase its oscillations with time, meaning that the system is asymptotically unstable, while for the model 2 the origin singularity is a fuzzy stable focus. In the case 3, for a fuzzy hemispherical resonator gyroscope model with fuzzy initial conditions, when there is no internal friction (model 1), there is a fuzzy asymptotic instability in the model 1 of a hemispherical resonator gyroscope, while in the presence of internal friction (model 2), the phase trajectory is also a function of time and controls the asymptotic stability of the fuzzy model 2 of a hemispherical resonator gyroscope. Asymptotic stability is determined for all cases and models
Forming the Bargaining Win-Win-Win Papakonstantinidis Tripartite Focal Points Analysis of the Bibliography
Authors: Papakonstantinidis Leonidas A.
Published: April 2021

Focal points, in a period that people are reviewing their priorities, in a more social direction due to thepandemic, as a global threat and catastrophe, are examined in this work, under the prism of the win -win-winpapakonstantinidis perception, closer to the tripartite global concept. Identity, social justice, and the community spirit seem to be the new-day priorities in a “pandemic period”, under a win-win-win perception: the last one is analyzed through the sequence toward the limit ln2 =0,693 and the disagreement point in a bargain. Finally, its philosophical perspective is analyzed through the tripartite thesis.
Research on pandemic “behavior” is provided at the end of this work.
Beyond the VLE: Transforming Online Discussion and Collaboration through Microsoft Teams
Authors: Hewson Edmund , Chung Gar Wai
Published: April 2021

Microsoft Teams is a new collaborative working and digital community platform launched in 2017 as part of the Microsoft Office 365 suite of applications. It provides an online space ideally suited for collaboration and streamlining communication for anyone involved in online learning and teaching in Higher Education. In the Distance Learning Unit (DLU) at Leeds Beckett University, Teams has been piloted used as part of a University-wide pilot project to help transform the way we work with both staff and students, both on distance and classroom courses. This presentation will outline the wider context of the Teams pilot in the University and how it is being trialled as a potential replacement for other collaborative platforms. As an early adopter, the Distance Learning Unit has experimented with Teams to improve communication, collaborative working, and sharing of best practice within the team. The presentation will then focus on how these lessons have been applied in working with the Course Team and students on a fully online distance learning course to help boost student engagement, develop a more active learner community, facilitate collaborative working, enhance resource sharing and provide a more accessible, mobile learning experience. The presentation will look at both the challenges and benefits of moving collaboration and communication outside the VLE and present staff and student feedback on their experiences of using Teams instead of other more traditional VLE-based tools and the provision of a safe, collaborative space.
Gross Morphological and Sex Wise Morphometrical Studies on Mandible of Adult Blue Bull (Boselaphus tragocamelus)
Authors: Sathapathy S. , Dhote B.S. , Bharti S.K. , Singh I.
Published: April 2021

Background: The Blue bull (Boselaphus tragocamelus) is one of the biggest antelopes in Asia and is widely distributed in both the forests and adjoining villages with enough green grass. Methods: The present study was carried out on the mandible of six specimens of adult Blue bull (Boselaphus tragocamelus) of either sex. The biometrical parameters were measured by scale, graduated tape and digital Vernier’s caliper. The statistical analysis of the recorded data was done by independent samples t-Test with Systat Software Inc, USA and SPSS 16.0 version software. Result: The mandible of Blue bull consisted of two rami, i.e. horizontal and vertical rami. The two halves of this bone fused incompletely at the mandibular symphysis, situated at the midline. The average length of horizontal ramus of mandible was found to be 24.7±1.02 cm in female, which was significantly less (P less than 0.05) than that of males, where it was recorded as 35.4±1.97 cm. Similarly, the average thickness of vertical ramus at the base was found to be 0.53±0.001 cm in female, which was significantly less (P less than 0.05) than that of males, where it was recorded as 0.80±0.002 cm. The average cranio-caudal length of mandibular notch was found to be 1.32±0.01 cm in female, which was significantly less (P less than 0.05) than that of males, where it was recorded as 1.44±0.02 cm. Most of the biometrical observations on different parameters of mandible of Blue bull were having significantly (P less than 0.05) more values in males than females. Conclusion: Most of the biometrical observations on different parameters of mandible of Blue bull were having significantly (p less than 0.05) more values in males than females. The present gross and biometrical studies would be useful to the wild life professionals for determination of sex of this animal and solving vetero-legal cases related with this species.
Sex Wise Morphometrical Studies on the Mid Thoracic Ribs of Blue Bull (Boselaphus tragocamelus)
Authors: Sathapathy S. , Dhote B.S. , Mrigesh M. , Sahu S.K. , Dahariya N. , Joshi S.K. , Biswal S.S. , Ali I. , Nanda S.M.
Published: April 2021

Background: The Blue bull (Boselaphus tragocamelus) is regarded as one of the biggest antelopes in Asia and safeguarded beneath the IUCN since 2003 and under safeguard of ‘Schedule III’ of the Indian Wildlife Protection Act, 1972. This study focused on the detailed gross morphometrical study of mid thoracic ribs of Blue Bull (Boselaphus tragocamelus). Methods: The present morphometrical study was carried out in six specimens of adult Blue bull (Boselaphus tragocamelus) of either sex. The measurements of various parameters of ribs were taken with the help of weighing machine, thread, scale and digital Vernier’s calliper. Result: It was found that the average diameter of the head of the fourth rib was found to be 2.56±0.01 cm in adult Blue bull. Further, it was measured as 2.53±0.01 cm in females that was significantly less (P less than 0.05) than that of males, where it was found to be 2.59±0.01 cm. The average cranio-caudal diameter of the cranial articular facet of the head of 5th rib was found to be 0.97±0.01 cm in adult Blue bull. Further, it was measured as 0.95±0.02 cm in females that was significantly less (P less than 0.05) than that of males, where it was found to be 1.00±0.01 cm. The average diameter of the tubercle of sixth rib at the dorso-ventral aspect was found to be 1.66±0.01 cm in adult Blue bull. Further, it was measured as 1.64±0.02 cm in females that was significantly less (P less than 0.05) than that of males, where it was found to be 1.69±0.02 cm. Similarly, the average minimum length of the neck of sixth rib at the cranial aspect was found to be 0.68±0.01 cm in adult Blue bull. Further, it was measured as 0.65±0.02 cm in females that was significantly less (P less than 0.05) than that of males, where it was found to be 0.70±0.01 cm. The average diameter of vascular groove of seventh rib at the proximal aspect was found to be 0.56±0.01 cm in adult Blue bull. Further, it was measured as 0.52±0.01 cm in females that was significantly less (P less than 0.05) than that of males, where it was found to be 0.60±0.01 cm.
Pollination Biology of Lespedeza davurica
Authors: Tong L.R. , Song Y. , Wang P. , Wang J. , Ni S.G. , Xia F.S.
Published: April 2021

Background: In order to reveal the pollination biological characteristics of Lespedeza davurica, wild L.davurica from eight regions of Shanxi Province was used as test materials to study their floral dynamic, pollen storage and other aspects. Methods: During 2019, the flowering dynamics of wild L. davurica collected from eight regions of Shanxi Province were observed by selecting the better-grown L.davurica. Freshly bloomed flowers were picked, and their pollen was set up for two treatments, dry and undried, for pollen storage experiments. Pollen viability was determined by the TTC (expand for first instance) and MTT (expand for first instance) methods and stigma receptivity was determined by the hydrogen peroxide-benzidine method. Result: The results showed us the following points: the flowers of L. davurica were pale yellow, large and fragrant; it usually opens from the base to the top with distinctly asymmetrical petals; it opens during the day and closes at night; the number of flowers reached its peak between 12:00 and 14:00. After measuring the pollen viability of L. davurica, we found that dry storage at -20°C was the most effective treatment. And with the increase of temperature and decrease of humidity, the pollen viability and stigma receptivity of L. davurica increased continuously and the highest viability value occurs between 12:00 and14:00.
The Effect of Salinity on Root Architecture in Forage Pea (Pisum sativum ssp. arvense L.)
Authors: Acikbas S. , Ozyazici M.A. , Bektas H.
Published: April 2021

Background: Plants face different abiotic stresses such as salinity that affect their normal development, growth and survival. Forage pea is an important legume crop for herbage production in ruminants. Its agronomy requires high levels of irrigation and fertilization. This study aimed to evaluate the effect of salinity on seedling root system development in forage pea under semi-hydroponics conditions. Methods: Different treatment of NaCl doses (0, 50, 100, 150, 200, 250 and 300 mM) on root architecture was investigated in two different forage pea cultivars (Livioletta and Ulubatlı) with contrasting root structures under controlled conditions. The experimental design was completely randomized design with three replications and nine plants per replication. Result: Salinity affects root and shoot development differently on these cultivars. Despite the salinity, Livioletta produced more shoot (0.71 g) and root biomass (0.30 g) compared to Ulubatlı (0.52 g and 0.25 g for Root and Shoot biomass, respectively) at 150 mM and all other salinity levels. Livioletta developed a better root system and tolerated salt to a higher dose than Ulubatlý. Understanding root system responses of forage pea cultivars may allow breeding and selecting salinity tolerant cultivars with better rooting potential.
Everybody Dies: Financial Education and Basic Estate Planning
Authors: Kim Kyoung Tae , Stebbins Richard
Published: April 2021

This study investigated the role of financial education on a basic level of estate planning of U.S. households. Results from the 2018 National Financial Capability Study (NFCS) dataset showed that financial education is positively associated with one's basic estate planning, proxied by having a will. Multiple exposures to financial education over time had stronger positive associations with having a will. One notable finding was that those receiving financial education offered by an employer only or jointly by an employer and other sources (high school and/or college) were more likely to have a will. In addition, among those who received financial education, the number of hours and the overall quality were positively associated with the likelihood of having a will. Additional analyses from Propensity Score Matching (PSM) and similar regressions across generations reveal that results were robust. The results provide meaningful insights for financial educators and practitioners.
Financial Literacy and the Early Withdrawal of Funds From Retirement Accounts
Authors: Tharayil Ashley , Walstad William B.
Published: April 2021

This study examined the association between financial literacy and the decision to withdraw funds from different types of retirement accounts before retirement. Data from the 2012 and 2015 National Financial Capability Study were used to investigate if financial literacy may potentially influence the decision to dissave from funds already set aside for retirement. The results showed that lower financial literacy appeared to increase the likelihood to retract funds saved for retirement, across different types of retirement accounts. The importance of financial literacy persisted, even after controlling for income shocks to personal finances, the availability of precautionary savings as an alternative source of funding, and an extensive set of demographic variables.
Nouvelles mobilités pastorales : cas des éleveurs d’ovins de la wilaya de Djelfa, Algérie
Authors: Gaci Dihia , Huguenin Johann , Kanoun Mohamed , Boutonnet Jean-Pierre , Abdelkrim Hacène
Published: April 2021

Les évolutions socioéconomique, démographique, politique et climatique que la steppe algérienne a connues au cours des dernières décennies ont induit de profondes transformations au niveau des pratiques d’élevage, tout particulièrement en matière de mobilités pastorales. Cette étude décrit de nouvelles pratiques de mobilité adoptées actuellement par des éleveurs de la région de Djelfa. Elle s’est basée sur 59 entretiens semi-directifs réalisés entre 2014 et 2016 auprès d’éleveurs dans différentes zones d’accueil. Nos résultats ont mis en évidence une diversité de pratiques pastorales relative à la distance parcourue durant un cycle annuel, au calendrier, à l’itinéraire de transhumance et au passage ou non par le terroir d’attache. Ces mobilités pouvaient varier d’une année à l’autre ou au cours de la vie d’un éleveur. Cette étude a montré que de nouvelles formes d’adaptation au contexte changeant de la steppe algérienne pouvaient être mises en oeuvre par les éleveurs par le moyen de nouvelles mobilités de grande distance. Nos résultats soulignent le renouvellement des formes de mobilité pastorale malgré le resserrement de l’espace et montrent que la sédentarisation n’est pas l’unique forme d’adaptation des populations pastorales aux changements.
Propostas alternativas para demonstrações práticas do tema Solos no contexto da Base Nacional Comum Curricular
Authors: Arruda Bruna , Guimarães Clécia Cristina Barbosa , Pucci Renata Helena Pin , Azevedo Antonio Carlos de
Published: April 2021

O Programa Ponte Solo na Escola (PPSNE) busca conscientizar estudantes, por meio de demonstrações lúdicas, sobre a necessidade de preservação do solo, um recurso não renovável essencial à vida. Considerando que o público-alvo do programa se estende a todo o Brasil, por meio da internet, as atividades do PPSNE foram adequadas à Base Nacional Comum Curricular (BNCC). Os objetivos foram: analisar a perspectiva da BNCC acerca de solos; refletir sobre o tratamento do tema em sala de aula e sugerir práticas de demonstrações e formas diferenciadas de abordagem no Brasil. O trabalho examina o uso do termo solo na BNCC e sua conceitualização de acordo com a ciência do solo, com sugestões de demonstrações que podem ser utilizadas no ensino fundamental, bem como uma contextualização de suas abordagens ao longo do território brasileiro, como forma de direcionar o ensino de solos de acordo com os contextos escolar e regional brasileiro.
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Estrategia metodológica para desarrollar el aprendizaje autorregulado en los estudiantes del primer ciclo de la carrera de Administración en una Universidad Privada de Lima
Authors:   , García Álvarez Mónica Maribel
Published: April 2021

La investigación tiene por objetivo proponer una estrategia metodológica para desarrollar el aprendizaje autorregulado en estudiantes del primer ciclo de la carrera de Administración de una universidad privada de Lima. Esta investigación se circunscribe en los paradigmas sociocrítico e interpretativo, con un enfoque cualitativo, se clasifica como una investigación educacional de tipo aplicado, de diseño no experimental y de corte transversal descriptivo. La muestra estuvo conformada por 38 estudiantes y dos docentes. Las técnicas aplicadas fueron la entrevista, la encuesta y la observación, y como instrumentos, se usaron la guía de entrevista, el cuestionario y la guía de observación, con el fin de evaluar cómo se emplea el aprendizaje autorregulado. En el trabajo de campo, se identificó que la mayoría de los estudiantes y docentes desconocen las estrategias de autorregulación, además de otros problemas, como carencia de educación emocional, limitado desarrollo del pensamiento crítico y analítico, insuficiente desarrollo de habilidades blandas, escasa investigación en el proceso de enseñanza-aprendizaje y deficiente desarrollo profesional de los docentes. En la sistematización de las categorías apriorísticas se tomaron en cuenta las teorías de Pintrich para el aprendizaje autorregulado, y las teorías de Moya para la estrategia metodológica. Se concluye la investigación con la modelación de una estrategia metodológica, en la cual se propone que los docentes desarrollen las sesiones de clase incluyendo procesos y estrategias de autorregulación, en tres fases: planificación, ejecución y evaluación.
La diégesis femenina en el discurso filmográfico de Hayao Miyazaki. Casos: Mi Vecino Totoro (1988) La Princesa Mononoke (1997) El viaje de Chihiro (2001) El Castillo Ambulante (2004)
Authors:   , Canal Paricahua Katherine
Published: April 2021

La siguiente propuesta investigativa permitirá manejar el conocimiento previo y el compromiso para dar a conocer la obra de Hayao Miyazaki. No obstante, me exigirá como reto personal, separar mi subjetividad respecto de mi afición por los animes y lograr descubrir, interpretar y exponer el sentido del trabajo de Miyazaki, abarcando una dimensión social, artística y transcultural. Del mismo modo, se busca contribuir con la apreciación y selección de material de consulta para futuros trabajos audiovisuales y que en las universidades las películas no occidentales puedan ser temas de estudio. Adicionalmente, se dará a conocer el estilo de Hayao Miyazaki, que sería un instrumento destacable en el tipo de enseñanza virtual a la niñez, a través de una educación que motive el respeto a la naturaleza, cultura y potenciar el rol femenino, algo que es necesario en todo el mundo y en especial en nuestro Perú. Al delimitar el presente trabajo de investigación, se optó por analizar: Mi vecino Totoro (1988), La princesa Mononoke (1997), El viaje de Chihiro (2001), El castillo ambulante (2004), películas con protagonistas de carácter independiente que demuestran las destrezas de una mujer. Se determinará la contribución de dichas obras que abarcan desde las primeras a las más recientes, material que permitirá un análisis íntegro y vertical del enfoque del autor.
Ekonomska opravdanost ulaganja u hotelske objekte
Authors: Blažević Branko
Published: April 2021

U radu se analizira isplativost ulaganja u hotelsku sobu koristeći se jednim od najvažnijih parametara za analizu isplativosti ulaganja tzv. "ROOM RATE". Analizira se "ROOM RATE” u investicijskim programima na uzorku 11 hotelskih objekata reprezentantnih za hrvatsko hotelijerstvo, izgrađenih u razdoblju 1960.-1980. godine, kao i "room rate" u vrijeme njihove pune eksploatacije 1980.-1990. godine. Iz predmetne analize izvlači se ukupna ocjena o isplativosti ulaganja u hotelsku sobu u dosadašnjem razdoblju, te ukazuje na složene zadatke u procesu uključivanja u svjetske međunarodne hotelske standarde.
QUALITY OF CHILLED CANINE SEMEN IN TRIS-EGG YOLK EXTENDER SUPPLEMENTED WITH SERICIN
Authors: Khye Kim Chwin , Yusuf Tuty Laswardi , Satrio Faisal Amri , Karja Ni Wayan Kurniani
Published: April 2021

ABSTRACTThe objective of this research was to evaluate the quality of chilled canine semen in Tris-egg yolk (TEY) extenders containing different concentrations of sericin. Semen were collected from four dogs by massage method. Canine semen was collected using sterile urine pots and evaluated. Sperm-rich fractions were pooled and divided into four equal aliquots, which were then diluted with TEY extenders supplemented with different concentrations of sericin (0%, 0.1%, 0.25%, 0.5%). The diluted semen aliquots were preserved at 4 ℃ in sterile centrifuge tubes and were then evaluated for spermatozoa motility, viability, plasma membrane integrity and acrosome integrity every 12 hours up to 72 h. The TEY extenders supplemented with 0.25% and 0.5% sericin resulted in higher spermatozoa motility and viability at 72 h compared to other TEY extenders (P0.05). The integrity of plasma membrane and acrosome of spermatozoa showed no significant differences among the groups extenders at 72 h. In conclusion, sericin in concentration of 0.25% and 0.5% were able to prevent the motility and viability of canine spermatozoa after storage for 72 h.
Desenvolvimento de um Método para Determinação do Efeito da Água Residuária de Piscicultura na Bromatologia da Forrageira Zuri e Atributos Químicos do Solo
Authors: Mota Sátiro Thaise , Barroca de Almeida Neto Onofre , Costa Nascimento Davison , Lima Bastos Felipe , Santos Madella Gabriela , Leon Flauzino Eduardo
Published: April 2021

O objetivo do estudo foi avaliar os efeitos da aplicação de diferentes doses de água residuária de piscicultura (ARP) nas características bromatológicas da forrageira Panicum maximum cv. Zuri e atributos químicos do solo. Foram realizadas três aplicações 0,250, 500, 750 e 1000 m³ ha-1 de ARP aplicadas após cada corte da forrageira. A ARP foi oriunda de um sistema de produção de policultivo e os peixes eram alimentados uma vez ao dia com ração comercial contendo 28% PB. Foi utilizado o delineamento em blocos casualizados contendo cinco tratamentos e três repetições. Após cada corte da forrageira, retirava-se uma amostra representativa para determinação da composição bromatológica da forrageira. Ao final do período experimental, amostras de solo foram coletadas nas profundidades de 0-20 e 20-40 cm para determinação dos parâmetros químicos. Houve incremento no teor de PB de forma linear (p<0,05) conforme as doses de ARP aplicada. A ARP influenciou de forma quadrática (p<0,05) os teores de H+ + Al3+ em ambas profundidades do solo. O P obteve diferença (p<0,05) somente na profundidade de 20-40 cm. O K + expressou diferença (p<0,05) nas camadas de 0-20 e 20-40 cm e o macronutriente Ca2+ apresentou diferença (p<0,05) somente na camada de 0-20 cm. A ARP contribuiu no incremento de PB da forrageira e não ocasionou salinização do solo. Em geral, os nutrientes encontrados no solo após aplicação da ARP são considerados baixos, indicando que a ARP pode ser usada como fonte parcial de nutrição, sendo necessário a complementação na forma mineral.
Inserção de Veículos Elétricos em um Sistema de Distribuição de Energia Elétrica.
Authors: Batista Maria Rita , Escobar de Oliveira Marcelo
Published: April 2021

Devido a incentivos ambientais e econômicos, o uso de veículos elétricos (VEs) tem aumentado em todo o mundo. Os carros elétricos são cargas do tipo resistiva devido à presença de baterias e, quando possuem o formato plug-in, o seu carregamento pode ser dado de duas formas: em postos de recarga e/ou residências. Esses veículos podem atuar tanto como fonte de carga (G2V) quanto fonte de energia (V2G). Neste sentido, são fundamentais análises para determinar problemas e soluções decorrentes da presença desses automóveis na rede elétrica. Assim, este trabalho analisa as consequências da presença da carga dos VEs no sistema elétrico, em situações que afetam as perdas elétricas do sistema. Para realização destas análises, um sistema real brasileiro é simulado no software OpenDSS e são analisados 3 cenários, considerando VEs na curva de carga típica residencial como fonte de energia e/ou fonte de carga. Como objeto de estudo será distribuído no sistema cargas de 4515 VEs e com os resultados obtidos nas simulações, buscou-se realizar análises a fim de verificar o comportamento da rede de forma geral, comparando as perdas de energia de todo o sistema de um dia sem VEs e o mesmo dia com os automóveis.
Proposta Metodológica para o Cultivo de Cogumelos Agaricus Blazei pela Técnica Jun Cao em Diferentes Tipos de Substratos.
Authors: Ferreira David Garcia , Barroca de Almeida Neto Onofre , Assunção Laélia Soares
Published: April 2021

A produção de cogumelos comestíveis como Agaricus blazei pela técnica Jun-Cao é tecnologia inovadora com menores impactos ambientais comparando-se a outros métodos, e pode ser explorada por pequenos e médios produtores com bom potencial de participação no mercado. Este estudo avaliou todas as etapas de produção do cogumelo Agaricus blazei. visando formular um substrato de baixo custo e fácil aquisição, utilizando a técnica Jun-Cao, Como substrato de produção utilizou-se feno de tifton (Cynodon spp), capim elefante (Pennisetum purpureum Schum), capim brachiaria (Brachiaria decumbens) e o bagaço de cana de açúcar, matérias primas facilmente disponíveis em Rio Pomba-MG. Aos substratos foram adicionados suplementos cama de frango, farelo de soja, calcário e gesso agrícola. As 3 fórmulas propostas continham 35% bagaço de cana e 30% esterco frango, variando a gramínea conforme códigos: SB1 35% Brachiaria; SB2 35% capim elefante, e SB3 35% feno Tifton. Adicionou-se 30 g de calcário, 10 g gesso e 20 g farelo de soja por cada kg de substrato. Substratos suplementados foram depois misturados, umedecidos com 65% de água e transferidos para área de compostagem. O composto foi pasteurizado em túnel de pasteurização com controle de ventilação e temperatura, sendo depois os substratos inoculados, incubados em sacos plásticos e levados para estufa de produção. A produtividade nos substratos (SB1, SB2 e SB3) em ambiente de cultivo, câmara climatizada com controle de umidade do ar, pelo período de 100 dias, alcançou 11,6% para SB1, 9,6% SB2 e 9,1% SB3 por kg de massa fresca de substrato após a pasteurização.
Surface Expressions: Gamma Ray Observation of Shallow Air-Sands Enables Early-Detection and Monitoring of Fluid Breakthrough
Authors: O'Sullivan Terence P. , Skinner Tom , Wright Jacob
Published: April 2021

Surface expressions occur when hot oil, water and vapor associated with steam injection in heavy oil reservoirs flows uncontrollably to surface, creating safety and environmental hazards. A new method for early-time identification of these events and monitoring of remediation efforts is proposed. Transient high gamma ray (THG) is a high-resolution, high-amplitude measurement that samples a large volume of rock when vapor containing radon condenses at a cooled well and gamma ray increases by a factor of 10 to 200. The effect is transient because gamma ray returns to normal when this transport process is reversed, as wellbore temperature equilibrates. Absence of this high-amplitude, high-resolution signal through shallow air sands above a heavy oil reservoir is confirmation that vapor breakthrough has not occurred. For wells located in an area where surface expressions have occurred, the method identified contaminated sands and detected flow-behind-casing in an uncemented well. Gamma ray transects in an area of surface expressions identified hot spots, caused by plumes of vapor that condense just below the surface. In at-risk areas, observation wells can provide assurance that injected steam is contained. When surface expressions occur, the method can be used to optimize and confirm the effectiveness of mitigation efforts.
Successful in the Lab, Not as Effective in the Field? Uncertainties in the Field Observations of Low Salinity Water Flooding in Sandstone and Carbonate Reservoirs-A Critical Analysis
Authors: Singh Navpreet , Sarma Hemanta Kumar
Published: April 2021

Low salinity waterflooding has been an area of great interest for researchers for almost over three decades for its perceived "simplicity," cost-effectiveness, and the potential benefits it offers over the other enhanced oil recovery (EOR) techniques. There have been numerous laboratory studies to study the effect of injection water salinity on oil recovery, but there are only a few cases reported worldwide where low salinity water flooding (LSW) has been implemented on a field scale. In this paper, we have summarized the results of our analyses for some of those successful field cases for both sandstone and carbonate reservoirs.

Most field cases of LSW worldwide are in sandstone reservoirs. Although there have been a lot of experimental studies on the effect of water salinity on recovery in carbonate reservoirs, only a few cases of field-scale implementation have been reported for the LSW in carbonate reservoirs. The incremental improvement expected from the LSW depends on various factors like the brine composition (injection and formation water), oil composition, pressure, temperature, and rock mineralogy. Therefore, all these factors should be considered, together with some specially designed fit-for-purpose experimental studies need to be performed before implementing the LSW on a field scale. The evidence of the positive effect of LSW at the field scale has mostly been observed from near well-bore well tests and inter-well tests. However, there are a few cases such Powder River Basin in the USA and Bastrykskoye field in Russia, where the operators had unintentionally injected less saline water in the past and were pleasantly surprised when the analyses of the historical data seemed to attribute the enhanced oil recovery due to the lower salinity of the injected water.

We have critically analyzed all the major field cases of LSW. Our paper highlights some of the key factors that worked well in the field, which showed a positive impact of LSW and a comparative assessment of the incremental recovery realized from the reservoir visa-a-vis the expectations generated from the laboratory-based experimental studies. It is envisaged that such a comparison could be more meaningful and reliable. Also, it identifies the likely uncertainties (and their sources) associated during the field implementation of LSW.
Geochemical Modeling on Effect of Active Species, Ca2+, Mg2+ and SO2-4 on the Carbonate Rock Surface, in Connection to Wettability Alteration of the Rock
Authors: Mohamed Mohamed Ibrahim , Alvarado Vladimir
Published: April 2021

A large percentage of petroleum reserves are located in carbonate reservoirs, which can be divided into limestone, chalk and dolomite. Roughly the oil recovery from carbonates is below the 30% due to the strong oil wetness, low permeability, abundance of natural fractures, and inhomogeneous rock properties Austad (2013). Injection of adjusted brine chemistry into carbonate reservoirs has been reported to increase oil recovery by 5-30% of the original oil in place in field tests and core flooding experiments. Previous studies have shown that adjusted waterflooding recovery in carbonate reservoirs is dependent on the composition and ionic strength of the injection brine (Morrow et al. 1998; Zhang 2005). Many research works have focused on the role of the brine composition in altering the initial wettability state of carbonate rock, which is usually intermediate- to oil-wet.

Crude oils contain carboxyl group, -COOH, that can be found in the resin and asphaltenes fractions. The negatively charged carboxyl group, -COOH bond very strongly with the positively charged, sites on the carbonate surface. The carbonate surface, which is positively charged is believed to adsorb the SO42− that is negatively charged. On the other side cations Ca2+ and Mg2+ bind to the negatively charged carboxylic group and release it from the surface.

In this study we use a closed system geochemical model to study the effect of the surface-charge dominant species; Ca2+, Mg2+ and SO42− on the carbonate surfaces at 80 °C. The proposed geochemical interactions can possibly lead to a change in the surface charge, altering wettability of the rock by exchanging ions/cations. Brines with various concentrations of Mg2+ and SO42− were prepared in the lab and contact angle between carbonate substrate and crude oil was measured using a rising/captive bubble tensiometer at 80 °C. The composition of the carbonate system was collected from previous literature review and the composition of adjusted brines was used to build a surface sorption database to develop a geochemical model. This model is focused on identifying the reaction paths and the surface behavior that may represent the real system.

Changes in carbonate surface wettability were further evaluated using a series of contact angle experiments. Experimental observations and modeling results are concordant and imply that SO42− ions may alter the wettability of carbonate surface at high temperature.