bluuebunny/crossref_metadata_2025 huggingface dataset:
26 Eylül 2019 Silivri Açıkları (Marmara Denizi) Depreminin Kuvvetli Yer Hareketi Verilerinin Değerlendirilmesi
Authors: ZÜLFİKAR A. Can , TEKİN Senem , OKUYAN AKCAN Seyhan , GÜNDOĞDU GÖK Methiye
Published: August 2020

26 Eylül 2019 günü Türkiye yerel saati 13.59’da Silivri açıklarında (Marmara Denizi) Kuzey Anadolu Fay hattı Kumburgaz segmenti üzerinde 6.99 km derinlikte büyüklüğü Mw 5.8 olan deprem meydana gelmiştir. Deprem Tekirdağ ve İstanbul başta olmak üzere Yalova, Kocaeli, Bursa ve Kırklareli illerinde hissedilmiştir. 26 Eylül Silivri depremi, 1999 Kocaeli (Mw 7.6) ve 1999 Düzce (Mw 7.1) depremleri ve artçılarından sonra bölgeyi etkileyen en büyük deprem olması nedeni ile önemlidir. Bu çalışma kapsamında Mw 5.8 Silivri deprem yer hareketi kayıtları incelenmiştir. Yer hareketi parametresi Maksimum Yer İvmesi (PGA), 2014 Yeni Nesil Yer Hareketi Tahmin denklemleri (YHTD - Next Generation Attenuation -NGA- Relations) kullanılarak değerlendirilmiştir. Ayrıca yer hareketi parametreleri (MMI, PGA, Sa 0.2 s, Sa 1.0 s) dağılım haritaları oluşturularak, kaydedilmiş yer hareketleri ile karşılaştırılmıştır. Ayrıca öncü ve artçı depremler değerlendirilerek orta ölçekli Marmara Denizi depremlerinin karakteristiği ortaya konmuştur. Ortaya çıkan enerji miktarı geçmiş büyük ölçekli depremler ile karşılaştırılmıştır.
Electric Field Effect on Excited State Binding Energy and Self-Polarization of a Hydrogenic Impurity in a Spherical Quantum Dot
Authors: MEŞE Ali İhsan
Published: August 2020

Effects of the electric field and impurity position on the 2p-excited state self-polarization and binding energy of the electron-impurity in a spherical quantum dot are investigated as a function of the dot radius using variational approach. According to results, turning point of 2p-excited state binding energy changes with the electric field strength and position of impurity in the spherical quantum dot. Self-polarization and binding energy between the 1s-ground state and 2p-excited state of a hydrogenic donor impurity in SQD are presented as a function of the dot radius for different electric field value and impurity positions. Obtained numerical results show a good agreement with the literature.
Serin iklim yeşil alan bitkilerinin Samsun koşullarında uyum, kalite ve devamlılık özellikleri
Authors: ARSLAN Sedat , AYAN İlknur , ACAR Zeki
Published: August 2020

Bu çalışma, Samsun ekolojik şartlarında bazı serin iklim yeşil alan bitkilerinin uyumunu ve kalite özelliklerini belirlemek amacıyla, Kasım 2010 ile Aralık 2012 tarihleri arasında eksik bloklar deneme desenine göre dört tekrarlamalı olarak yürütülmüştür. Denemede bitki materyali olarak Çok yıllık çim (L. perenne L.), Kamışsı yumak (F. arundinacea Schreb.), Rizomsuz kırmızı yumak (F. rubra L. subsp. commutata), Rizomlu kırmızı yumak (F. rubra L. subsp. rubra), Narin kırmızı yumak (F.rubra trchophyla), Koyun yumağı (F. ovina L.), Çayır salkım otu (P. pratensis L.), Adi salkım otu (P. trivialis L.), Stolonlu tavusotu (A. stolonifera L.), Narin tavusotu (A. tenuis Sibth.) türlerine ait 38 adet serin iklim yeşil alan çim çeşidi kullanılmıştır. Araştırmada ilk yıl çıkış hızı ve kaplama hızı, ikinci yıl kaplama derecesi, yenilenme gücü, kışa dayanıklılık ve yeşil kütle verimi gözlem ve ölçümleri alınmıştır. Çıkış hızı, kaplama hızı ve derecesi yönleriyle çok yıllık çim ve kamışsı yumak; yenilenme gücü açısından narin kırmızı yumak; kış koşullarına dayanıklılık bakımından narin kırmızı yumak, tavus otu ve kamışsı yumak; yeşil kütle veriminin düşüklüğü yönünden çayır salkım otu ve adi salkım otu çeşitleri öne çıkmıştır. Yeşil alanlarda ekilen tohumların hızla çimlenip çıkış yaparak ortamı kapatmaları, olumsuz koşullardan olabildiğince az etkilenmeleri, yenilenme gücünün yüksek olması ve bakım masraflarını azaltabilmek adına kütle verimlerinin düşük olması istenir. Bu özelliklerin tümünü tek bir tür veya çeşitte bulmak mümkün görünmemektedir. Bu nedenle, istenen özelliklere en yakın sonuçlara ulaşabilmek için, bölge koşullarına uygun karışımların hazırlanmasının çok önemli olduğu sonucuna varılmıştır.
Tüp Bebek Tedavisi Gören İnfertil bireylerde stres ve stresle başa çıkma yaklaşımları Üzerine Pilot Bir Çalışma
Authors: KARPAT Can , ERENSOY Habib
Published: August 2020

Amaç: Son yıllarda infertilite sorunu yaşayan bireylerin sayısında bir artışa rastlanmıştır. Tanı ve tedavi süreçlerinin bireyleri gerek fiziksel gerekse psikolojik olarak yıprattığı bilinmektedir. Yaşanan bu durum karşısında bireyler streslerini kontrol altına almakta güçlük çekebilmektedirler. Bu çalışmada tüp bebek tedavisi gören infertil hastalarin stres ile başa çıkma yöntemleri incelenecektir. Gereç ve Yöntemler: Çalışmanın örneklemi 63 infertil kadından oluşmaktadır. Katılımcılara Sosyodemografik Bilgi Formu, İnfertilite Stres Ölçeği ve İnfertilite Stresi ile Başa Çıkma Ölçeği uygulanmıştır. Bu çalışma Kasım2019- Ocak 2020 tarihleri arasında yapılmıştır. Bulgular: Çalışmamıza katılan kişilerin tamamı, 18-49 yaş arasındaki kadınlardan oluşmaktadır. Katılımcıların “İnfertilite Stresi ile Başa Çıkma Ölçeği” alt boyut ve toplam ölçek puanları arasındaki korelasyonlar incelendiğinde; alt boyut puanları arasında sadece “aktif mücadele etme” ve “anlam bulma temelli” alt boyut puanları arasında pozitif yönde, zayıf-orta düzeyde, istatistiksel olarak anlamlı korelasyon bulunmuştur. Katılımcıların “İnfertilite Stresi Ölçeği” ve “İnfertilite Stresi ile Başa Çıkma Ölçeği” alt boyut puanları arasındaki korelasyonlar incelendiğinde sadece “kişisel alanda stres” ile “aktif yok sayma” ve “anlam bulma temelli” alt boyut puanları arasında zayıf-orta düzeyde, istatistiksel olarak anlamlı korelasyonlar bulunmuştur. Sonuç: Tüp bebek tedavisi gören infertil kadınların stres düzeyleri ve aynı şekilde stres ile başa çıkma yöntemleri de artış eğilimi göstermektedir. Bu bağlamda infertilite teşhisi almış kadın bireylerin tedavi sürecinde psikolojik destek almaları önerilebilir.
Telemonitoring for Patients With COVID-19: Recommendations for Design and Implementation
Authors: Silven Anna V , Petrus Annelieke H J , Villalobos-Quesada María , Dirikgil Ebru , Oerlemans Carlijn R , Landstra Cyril P , Boosman Hileen , van Os Hendrikus J A , Blanker Marco H , Treskes Roderick W , Bonten Tobias N , Chavannes Niels H , Atsma Douwe E , Teng Y K Onno
Published: August 2020

Despite significant efforts, the COVID-19 pandemic has put enormous pressure on health care systems around the world, threatening the quality of patient care. Telemonitoring offers the opportunity to carefully monitor patients with a confirmed or suspected case of COVID-19 from home and allows for the timely identification of worsening symptoms. Additionally, it may decrease the number of hospital visits and admissions, thereby reducing the use of scarce resources, optimizing health care capacity, and minimizing the risk of viral transmission. In this paper, we present a COVID-19 telemonitoring care pathway developed at a tertiary care hospital in the Netherlands, which combined the monitoring of vital parameters with video consultations for adequate clinical assessment. Additionally, we report a series of medical, scientific, organizational, and ethical recommendations that may be used as a guide for the design and implementation of telemonitoring pathways for COVID-19 and other diseases worldwide.
Estimation of Above Ground Carbon Sequestration in Trembesi (Albizia saman) and Johar (Senna siamea) at PT Multi Harapan Utama, East Kalimantan
Authors: Fajariani Widya , Hendra Medi , Susanto Dwi
Published: August 2020

The open-pit mining method has a very large ecological impact. It causes the loss of forest vegetation which decreases CO2 absorption. Measuring the amount of carbon stored in plant biomass can represent the amount of CO2 that can be absorbed in the atmosphere. The objective of this research is to determine the carbon sequestration of Albizia saman and Senna siamea in different age classes at PT MHU Busang Jonggon Block, Kukar, East Kalimantan. Estimation of carbon sequestration in the stands of A. saman and S. siamea was carried out by non-destructive methods using biomass allometric equations while in understorey and litter using the destruction sampling. The results showed that the highest carbon absorption value of A. saman was 314.28 tons/ha which appear at six years old stands and the lowest value was 193.31 tons/ha at three years old stands while the highest carbon absorption value of S. siamea was 113.65 tons/ha which appear at nine years old stands and the lowest value was 24.64 tons/ha at three years old stands. A. saman could be more promising plant species than S. siamea according to its higher level of carbon sequestration and their high adaptation level. All data from this study could suggest several information for increasing carbon sequestration level in forest ecosystem as well as achieving forest rehabilitation purpose.
The Diversity of Ray-finned Fishes (Actinopterygii) in Plio-Pleistocene Java
Authors: Yudha Donan Satria , Prabowo Muhammad Ageng , Suriyanto Rusyad Adi , Barianto Didit Hadi
Published: August 2020

Java has been known in the world of Paleontology as a contributor to the findings of Homo erectus fossils, but there are still other fossil findings that have not been identified until now, especially fossil fishes of the subclass Actinopterygii. This research was conducted to recognize the diversity of the actinopterygians fishes in Plio-Pleistocene of Java and to determine the diagnostic characters of each taxon group of fossils in the Plio-Pleistocene of Java. The study was carried out using comparative anatomical methods with present-day specimens and fossil findings collection of the Laboratory of Bioanthropology and Paleoanthropology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada; Bandung Geological Museum and Sangiran Early Man Site. The research found at least 8 species of fish fossils in Java which belong to three order, i.e., the order Siluriformes with 5 identified species: Bagarius gigas, Hemibragus nemurus, Clarias macrocephalus, family Ariidae with indeterminate genus or species, Plotosus canius, Clarias batrachus, and family Pangasiidae with indeterminate genus or species; the order Perciformes with two identified species: Anabas testudineus and Sphyraena crassidens; and the order Cypriniformes with one identified species: Osteochilus vittatus. Based on the fossil findings showed that the Java Island during the Plio-Pleistocene used to be a marine environment that gradually ascending into a lowland river which closes to mangrove swamps and estuaries while the ancient Bandung lake site was a lacustrine environment with calm currents and is overgrown with riparian vegetation.
Induction of Microspore Embryogenesis of Eggplant (Solanum melongena L.) ‘Gelatik’
Authors: Pagalla Devi Bunga , Indrianto Ari , Maryani Maryani , Semiarti Endang
Published: August 2020

The haploid or double haploid plant of eggplants could be produced from microspore culture (embryogenesis of microspores). In the breeding programs, microspore can be developed into an embryo directly after exposure to stress treatment during cultured. Stress (temperature and starvation medium) is an important factor in the induction of embryogenesis microspore. This study aims to induced embryogenic microspores from eggplant CV. Gelatik. The stage late-uninucleate microspore (Vacuolate Microspore/VM) and early binucleate (Young Bicellular Pollen/YBP) are the suitable stages to induce multinucleate structure. There are 3 methods used in this research; 1) Determination of the stage development of microspore based on flower buds length and anther length. 2) Induction of embryogenic microspore on the pre-treatment and starvation medium. 3) After giving pre-treatment for 4 days, micropores were transferred to culture medium A2 at 28oC in dark conditions to induce the multicellular structures. This study reported that 50-68.51% of the VM+YBP stage obtained in the range of flower bud lengths of 10-17 mm, and 5.0-6.9 mm, the range of anther length containing VM+YBP of 50-77.48%. The pre-treatment heat shock at 33oC in the medium B for 2 days,  produced embryogenic microspores with a high percentage, that is about 50.19%, while microspores at 25oC and 4oC respectively 46.17% and 49.28%. Pre-treatment for 4 days at 4 oC, 25 oC,  and 33oC with the percentage of embryogenic microspores apiece 32.87%, 27.45%, and 37.34%. The multicellular (starlike) structure begins forming on the fifth day of incubation in culture medium (A2) after pre-treatment in B medium at 33oC.
The Flora Diversity of Lasitae Protected Nature Forest and the Nearby Area, District of Barru, South Sulawesi
Authors: Sari Rismita , Astuti Inggit Pudji , Susandarini Ratna , Makmur Irwan
Published: August 2020

An expedition to Lasitae Protected Forest in District of Barru, South Sulawesi was undertaken to collect living plants for Pucak Botanic Garden, South Sulawesi. The aims were to investigate the diversity of the plants and as a dedication to the Expedition of the Republic of Indonesia Corridor Sulawesi. Using an explorative method, we collected the plants and recorded all data in the field following the tracks assisted by the field guide. A total of 179 collection-numbers have been collected from this dry lowland forest including the data for the local names. Many potential and valuable plants occur in the forest, 13 plants were highlighted in this paper for its conservation status, the potentiality for various purposes or its uniqueness: Diospyros celebica Bakh. or streak ebony (Ebenaceae), Arenga pinnata (Wurmb.) Merr. (Arecaceae), Phyllanthus lamprophyllus Mull.Arg. (Phyllanthaceae), Cycas rumphii Miq. (Cycadaceae), Lagerstroemia speciosa (L.) Pers. (Lythraceae), Garcinia celebica L. (Clusiaceae), Nervilia aragoana Gaud. (Orchidaceae), Phalaenopsis amabilis (L.) Blume (Orchidaceae), Ophioglossum reticulatum L. (Ophioglossaceae), Tetracera scandens (L.) Merr. (Dilleniaceae), Derris trifoliata Lour., Phytocrene bracteata Wall. (Icacinaceae), and Dioscorea hispida Dennst. Buchanania arborescens (Blume) Blume and Ardisia elliptica Thunb. can easily be found and widely spread.
Autecology of An Endemic Palm Pinanga arinasae J.R.Witono in Bali, Indonesia
Authors: Iryadi Rajif , Sutomo Sutomo
Published: August 2020

Nyabah, or Jabah (Pinanga arinasae J.R.Witono) is pinanga or palm which is endemic to Bali.  This study aimed to determine the distribution, abundance patterns, and habitat preferences of P. arinasae, and also its natural microclimate on Mount Pengelengan, Bali, on which the species occurred. Field observations were conducted using systematic sampling method. 20 x 20 m plots were made along a transect of forest path on the right and the left, with 100 m distance between plots. Results showed P. arinasae distribution in Mount Pengelengan grows clumped with different abundance in each plot. Microclimate observations (light intensity, humidity relative, and air temperature) each plot varies the effect on the distribution and abundance of P. arinasae. Light intensity is the main factor that regulates the abundance and distribution of P. arinasae and this species has the most abundant on the limited canopy cover area which has high the light intensity at 1319 lux. Autecological data is the first step in conservation efforts.
Effects of taboo conversation topics on impression formation and task performance evaluation
Authors: Lee Hye Eun , Westerman Catherine Kingsley , Hashi Emi , Heuett Kyle B. , Spates Stephen A. , Reno Katie M. , Jenkins Erica W.
Published: August 2020

We examined how taboo conversation topics, such as being arrested, religion, and one's body weight, affect impression formation and task performance. In an experiment with 109 women, each participant and a female research confederate, whom the participant believed to be another participant,
had a conversation and were asked to complete a task. We manipulated the conversation topics and actual task performance of the confederate, and measured participants' communication satisfaction; perception of the confederate's social, physical, and task attractiveness; and task performance.
The results show that when the confederate performed well and appropriate (vs. taboo) conversation topics were discussed, the participants formed a more positive impression of the confederate and evaluated her task performance more positively. Therefore, if social norms for appropriate conversation
topics are not followed, individuals may be less satisfied with their interpersonal communication interaction with the person who has not observed the norms, and may evaluate the task performance of that other person more negatively.
Budget overestimation when dealing with an uncertainty goal
Authors: Zhang Pan , Guo Yulang , Wu Fang
Published: August 2020

We conducted 2 studies (N = 86 and 248) to examine people's tendency to overestimate their personal budget. The findings support 3 hypotheses. First, about 35% of participants in our first study tended to overestimate their budget when dealing with an uncertainty goal. Second,
we found that focalism played a mediating role in this relationship. Third, in our second study we found that temporal distance positively moderated this relationship: The distant future strengthened the effect of dealing with an uncertainty goal on budget overestimation, whereas the near
future attenuated it. These findings shed light on the cause and internal mechanism of consumer budget overestimation. Theoretical and practical implications are also discussed.
Influence of attributions on negative emotions of individuals experiencing parenting-related trauma
Authors: Wu Hao , Zhao Jiaxu , Chao Xiaomei
Published: August 2020

We investigated how the type of trauma and attributions contribute to and affect negative emotions in individuals who have experienced parenting-related trauma. We assessed 6 negative emotions and 4 attributions of 294 participants who had experienced 3 types of parenting-related trauma:
infertility, death of a child, or a child with a disability; and 124 participants who had not experienced parentingrelated trauma (control group). Results show that the attributions had different effects on the negative emotions of participants in each of the 3 trauma groups and the control
group. Our findings suggest that attribution is an important factor in inhibiting the influence of parenting-related trauma on negative emotions.
Extracurricular sports participation increases life satisfaction among Chinese adolescents: A moderated mediation model
Authors: Wang Guang-Hui , Li Wei-Dong , Dou Kai
Published: August 2020

We investigated whether participation in extracurricular sports promotes the life satisfaction of Chinese adolescents and tested the mediating effect of academic stress and the moderating effect of extraversion in this relationship. We conducted a survey with 1,608 Chinese adolescents
to assess their participation in extracurricular sports and their levels of extraversion, academic stress, and life satisfaction. The regression analysis results indicate that extracurricular sports participation positively influenced life satisfaction through the mediator of academic stress.
The moderated regression analysis results reveal that high extraversion strengthened not only the direct effects of extracurricular sports participation and academic stress but also the indirect effects of extracurricular sports participation and life satisfaction. These findings indicate
that participation in extracurricular sports chiefly promoted life satisfaction in Chinese adolescents indirectly by reducing their academic stress, subject to the moderating effect of having an extraverted personality. Thus, increasing the time students spend on participating in extracurricular
sports can help to enhance their life satisfaction.
How psychological safety influences employee creativity in China: Work engagement as a mediator
Authors: Liu Kebin , Ge Yuanqin
Published: August 2020

Although the effect of psychological safety on employee creativity is well documented, the mechanisms that explain that effect remain unclear. This study extends previous research by examining the direct link between psychological safety and employee creativity, and testing the mediating
effect of work engagement in this relationship in a Chinese context. We chose 231 participants employed by 4 banking companies located in China to complete a series of self-report questionnaires. Structural equation modeling was used to evaluate the mediation model. The results reveal that
psychological safety was a significant antecedent of employee creativity and that work engagement fully mediated the influence of psychological safety on employee creativity. These findings shed light on how psychological safety influences employee creativity. Implications for theory and practice
are discussed.
The cognitive and socioemotional effects of a short-term light painting intervention
Authors: Hu Jun , Lu Lidong , Zhu Mengjing , Li Zhaoyi , Wang Chu , Gu Shengli , Meng Linghao , Liu Hongyan , Hu Zhiguo , Xu Yun
Published: August 2020

We investigated the cognitive and socioemotional effects of a light painting intervention, which is a new type of creative arts therapy. Participants were 60 university students, 30 of whom were assigned to the light painting (LP) group and attended 5 light painting sessions for 1 hour
every other day, and 30 of whom were assigned to the control group and engaged in classroom self-study on the same schedule. Both groups completed a spatial orientation task and the Positive Affect and Negative Affect Schedule before and after the intervention. Compared to the control group,
the LP group showed significant improvement in speed of performing the spatial orientation task. Moreover, the LP group reported increases in imagination, creativity, emotional and mental health, and social skills. Our findings provide preliminary empirical evidence supporting the positive
effect of LP in some cognitive and socioemotional domains, and indicate that LP could be a promising creative arts therapy intervention for treating psychiatric disorders.
Risk of Anemia With Metformin Use in Type 2 Diabetes: A MASTERMIND Study
Authors: Donnelly Louise A. , Dennis John M. , Coleman Ruth L. , Sattar Naveed , Hattersley Andrew T. , Holman Rury R. , Pearson Ewan R.
Published: August 2020

OBJECTIVE

To evaluate the association between metformin use and anemia risk in type 2 diabetes, and the time-course for this, in a randomized controlled trial (RCT) and real-world population data.

RESEARCH DESIGN AND METHODS

Anemia was defined as a hemoglobin measure of <11 g/dL. In the RCTs A Diabetes Outcome Progression Trial (ADOPT; n = 3,967) and UK Prospective Diabetes Study (UKPDS; n = 1,473), logistic regression was used to model anemia risk and nonlinear mixed models for change in hematological parameters. In the observational Genetics of Diabetes Audit and Research in Tayside Scotland (GoDARTS) population (n = 3,485), discrete-time failure analysis was used to model the effect of cumulative metformin exposure on anemia risk.

RESULTS

In ADOPT, compared with sulfonylureas, the odds ratio (OR) (95% CI) for anemia was 1.93 (1.10, 3.38) for metformin and 4.18 (2.50, 7.00) for thiazolidinediones. In UKPDS, compared with diet, the OR (95% CI) was 3.40 (1.98, 5.83) for metformin, 0.96 (0.57, 1.62) for sulfonylureas, and 1.08 (0.62, 1.87) for insulin. In ADOPT, hemoglobin and hematocrit dropped after metformin initiation by 6 months, with no further decrease after 3 years. In UKPDS, hemoglobin fell by 3 years in the metformin group compared with other treatments. At years 6 and 9, hemoglobin was reduced in all treatment groups, with no greater difference seen in the metformin group. In GoDARTS, each 1 g/day of metformin use was associated with a 2% higher annual risk of anemia.

CONCLUSIONS

Metformin use is associated with early risk of anemia in individuals with type 2 diabetes, a finding consistent across two RCTs and replicated in one real-world study. The mechanism for this early fall in hemoglobin is uncertain, but given the time course, is unlikely to be due to vitamin B12 deficiency alone.
Challenges and Strategies for Managing Diabetes in the Elderly in Long-Term Care Settings
Authors: Pandya Naushira , Hames Elizabeth , Sandhu Sukhman
Published: August 2020

Diabetes affects a large number of patients in the long-term care (LTC) setting, and their care is often complicated because of multimorbidity, diabetes-related complications, disability, dependency on caregivers, and geriatric syndromes, including frailty and cognitive impairment. This population includes patients receiving short-term rehabilitation in skilled nursing facilities, those who are residents in LTC facilities, and those receiving palliative or end-of-life care. An individualized approach to care based on clinical complexity, diabetes trajectory, and patients’ preferences and goals is required. Such patients may experience one or more transitions of care and decline in condition. They are also prone to adverse drug events, cardiovascular events, and hypoglycemia. Facility-related challenges include varying staff competencies and practitioner preferences, inconsistent interdisciplinary communication, overly complex medication regimens, and poorly implemented care transitions.
Los paradigmas de la investigación: un acercamiento teórico para reflexionar desde el campo de la investigación educativa
Authors: Miranda Beltrán Sorangela , Ortiz Bernal Jorge Alexander
Published: August 2020

El presente artículo académico busca responder la pregunta: ¿qué configuraciones teóricas se asumen desde los paradigmas de la investigación y qué nuevos retos se plantean en torno a ellos desde la investigación educativa? Para ello, se parte de la revisión teórica de los conceptos de conocimiento, epistemología y paradigma. Particularmente, se profundiza en el concepto de paradigma en cuanto que este sirve de marco para la comprensión de los fenómenos de la realidad. Y se identifican cuatro variantes: positivista (las teorías como verdades absolutas), interpretativo (la construcción de la realidad en las subjetividades), crítico (la emancipación para la transformación social) y el paradigma emergente de la complejidad. Una vez hecho el abordaje teórico, se determina que, en términos de la investigación educativa, es necesario generar reflexión frente a tres elementos relevantes: los retos investigativos frente a las dinámicas cambiantes de las sociedades, las miradas a los problemas propios de la educación y la postura del investigador en razón a los ámbitos del conocimiento desde los cuales parte para entender el fenómeno de estudio.
Los exámenes cooperativos en la educación superior: un enfoque desde la perspectiva del estudiante
Authors: Ramírez-Noriega Alan , Jiménez Samantha , Martínez-Ramírez Yobani , Sánchez García José Emilio
Published: August 2020

Los exámenes cooperativos impulsan al estudiante a trabajar en pequeños grupos y así, grupalmente, cumplir una meta. Con este tipo de exámenes, los alumnos reciben comentarios inmediatos de sus compañeros mientras contestan el examen. Esta investigación determinó el impacto y la aceptación de los exámenes cooperativos (dos integrantes) desde la perspectiva de estudiantes de ingeniería de Software de la Universidad Autónoma de Sinaloa. La muestra para el experimento se conformó de seis grupos en etapa terminal de dicha carrera profesional. El experimento consistió en resolver exámenes cooperativos a lo largo del semestre. Para recopilar información, una vez finalizado el semestre, los estudiantes contestaron un instrumento previamente diseñado. Los resultados indican una aceptación de los exámenes cooperativos. Además, según los participantes, estos exámenes brindan retroalimentación y reducen el estrés que provoca el ser evaluados.
Complementary and Alternative Medicine: Are Medical Students in AlKhobar, Saudi Arabia Interested?
Authors: Alamoudi Naela B. , Itani Sarah A. , Shafey Marwa M. , Abdel Wahab Moataza M.
Published: August 2020

This study aimed to assess the knowledge and attitude of medical students toward complementary and alternative medicine. A cross-sectional design was used, in which a total of 319 fourth- to sixth-year medical students at a local university hospital participated in self-administered questionnaires during the academic year of 2018-2019. The questionnaire assessed levels of perceived knowledge, attitude, and willingness to recommend complementary and alternative therapies. It showed that most students (95.6%) have heard of complementary and alternative medicine previously, and 74.6% of students held a positive attitude toward it. The majority had perceived knowledge about nutritional supplements (63.2%), prayer (60.9%), and yoga/meditation (60.9%), but less than 50% had perceived knowledge about other common therapies. Only 8.7% of the participants thought that their current knowledge about complementary and alternative medicine is adequate. Students were willing to recommend therapies that they were most familiar with, namely prayer (82%), massage (74%), and yoga/meditation (72.6%). Most students (60.5%) got their information about complementary and alternative medicine from the university curriculum. Yet, they did not believe that it provided them with adequate information. In conclusion, medical students showed a positive attitude toward complementary and alternative medicine despite their limited perceived knowledge. We recommend incorporating a complementary and alternative medicine course in the medical curricula that focuses on common therapies in Saudi Arabia.
Statistical Analysis of the Effect of Environmental Degradation on Mortality Rate: A Vector Autoregressive (VAR) Model Approach
Authors: Adedotun A. F. , Obadina O. G. , Adesina O. S. , Omosanya K. O. , Dare R. J.
Published: August 2020

The relationship between air pollution and mortality calls for attention in recent time. Diverse analyses have been conducted globally, including important cities in Africa, United States, Europe, and Asia. In this study, a time-series analysis is proposed to analyze influence of environmental pollution on mortality in Nigeria using the Vector Autoregressive (VAR) Model. Stationarity test shows that the data is stationary and VAR model suitably fits the data. The study reveals that environmental pollution has significant impact on mortality in Nigeria. Some useful recommendations were made.
Detection of Heart Defects using Electrocardiogram (ECG)
Authors: Shah Kenil , Rane Mayur , Emamian Dr. Vahid
Published: August 2020

Electrocardiogram (ECG) signals are vital to identifying cardiovascular disease. The numerous availability of signal processing and neural networks techniques for processing of ECG signals has inspired us to do research on extracting features of ECG signals to identify different cardiovascular diseases. We distinguish between a healthy person ECG data and person having disease ECG data using signal processing and neural network toolbox in Matlab. The data was downloaded from physiobank. To distinguish normal and abnormal ECG, Neural network is used. Feature extraction method is used to identify heart diseases. The diseases that are identified include Tachycardia, Bradycardia, first- degree Atrioventricular (AV) and a healthy person. Subsequently, ECG signals are very noisy; signal processing techniques are used to remove the noise impurity. The heart rate can be calculated by detecting the distance between R-R intervals of the signal. The algorithm successfully distinguished between normal and abnormal ECG data.
Blood Pressure Estimation Using Electrocardiogram and Photoplethysmogram
Authors: Rane Mayur , Shah Kenil , Emamian Dr. Vahid
Published: August 2020

An increasing number of people are suffering from cardiac diseases, diabetes, high or low blood pressure, and many more. There are many devices available in the commercial market to measure heart rate, blood pressure, and temperature of the human body. Old fashioned blood pressure meters are cuff based and inconvenient for daily monitoring. The aim of this project is to design a platform to optimally estimate blood pressure using electrocardiogram (ECG), photoplethysmogram (PPG), Pulse Transit Time (PTT), wavelet transform and artificial neural network (ANN). This kind of blood pressure assessment may not be satisfactorily correct because the regulation of blood pressure inside the human body is complex, multivariate biological procedure. Predefined data is used to get ECG and PPG. 70% data is used for training and 30% data is used for testing in ANN to get accuracy of the system.
Production of Asbestos-free Brake Pad Using Groundnut Shell as Filler Material
Authors: Solomon W. C. , Lilly M. T. , Sodiki J. I.
Published: August 2020

The development and evaluation of brake pads using groundnut shell (GS) particles as substitute material for asbestos were carried out in this study. This was with a view to harnessing the properties of GS, which is largely deposited as waste, and in replacing asbestos which is carcinogenic in nature despite its good tribological and mechanical properties. Two sets of composite material were developed using varying particle sizes of GS as filler material, with phenolic resin as binder with percentage compositions of 45% and 50% respectively. Results obtained indicate that the compressive strength and density increase as the sieve size of the filler material decreases, while water and oil absorption rates increase with an increase in sieve size of GS particle. This study also indicates that the cost of producing brake pad can be reduced by 19.14 percent if GS is use as filler material in producing brake pad. The results when compared with those of asbestos and industrial waste showed that GS particle can be used as an effective replacement for asbestos in producing automobile brake pad. Unlike asbestos, GS-based brake pads are environmental friendly, biodegradable and cost effective.
How Electronic Retailing Impact to Traditional Retailing - An Empirical Studied in the United States under Sales Value
Authors: Quyet Chu Ba , Cuong Hoang Cao
Published: August 2020

Electronic retailing is the process of selling the goods and services through electronic media, particularly the internet. Nowadays, electronic retail sales are increasing. There are some ideas for that electronic retail sales growth will impact negatively to traditional retail sales. By analyzing the relationship between of electronic retail sales and traditional retail sale at the time 2000 â€“ 2017 in the US, the purpose of this paper explains the nature of this impact. The results indicate that traditional retail sales have increased low during 2000 -2017 while electronic retail sales have increased higher. In nearest prospect, when both electronic retail sales shares and the growth speed of electronic retail sales reach to the larger amount and size, perhaps traditional retail sales will be negative growth. Used data are secondary data, using Microsoft excel 2010 for tabulating and graphing.
The Impact of Quality Control for Profitability in a Car Brake Pad Manufacturing Industry: A Case Study
Authors: Ihuoma Daniel N. , Lilly Macauley T , Ndor Morrison V.
Published: August 2020

The Impact of quality control for profitability in a brake pad manufacturing company was evaluated in this work. The extent to which quality control practices are applied by car brake pad manufacturing firms in Nigeria was examined. The impact of quality control on the profitability of the car brake pad manufacturing firms was determined by establishing the relationship between quality control practices and profitability performance of the manufacturing firms in Nigeria. Also, a conceptual model that correlates quality control practices/techniques and profitability in car brake pad manufacturing firms in Nigeria was developed, in accordance with the third objective. The study used structured questionnaires to generate primary data and descriptive statistical tools were used to analyze the data generated. The study established that the quality control practices (commitment of senior management, training, zero defect, benchmarking, supplier relations, employee focus, process improvement, customer focus and Quality management) have been applied to a large extent by the brake pad manufacturing firms in Nigeria. More so, the study found that there is a positive relationship between dependent variable (profitability) and the independent variables (quality control practices). The relevant statistical methods were also employed to analyze the responses obtained from the structured questionnaires sent to the Brake Pads Production firms. The multiple linear regression results revealed that there is a positive relationship between dependent variable (profitability/productivity performance) and independent variables (commitment of senior management, training, employee focus, zero defects, benchmarking, supplier relations, process improvement, customers focus and Quality measurement). The regression coefficient values represented were all < 5% (from 0.06 â€“ 0.37) and only three of them were the predictors used which are significant. Similarly, the sample used Z-statistic represented by t since the sample size is more than 30. Three of the t values were > 1.96 hence only three values are significant (Commitment of senior management, training and supplier relations.) These findings are in agreement with previous research work that describes the relationship between quality control practices and the financial performance of manufacturing firms as well as the effectiveness of the application of quality control practices in engineering production processes. However, conclusion and recommendations were made to improve upon further research that will be conducted on quality control practices, and how it affects the performance of firms in the manufacturing industry.
Magnetic Flow Scattering in Ferrite Rings
Authors: Chubykalo Andrew , Espinoza Augusto , Kuligin Viktor
Published: August 2020

It is shown that, contrary to the prevailing opinion, the scattering of the magnetic flux, even in ferrites with high magnetic permeability, is very large. A description of the technique for measuring the parameters of ferrites and inductors on ferrite rings is given. The results of experimental measurements of parameters for various grades of ferrites and various values of magnetic permeability are presented. Recommendations on the design of high-frequency transformers and inductors on ferrite rings are given.
Karakteristik Pulp Hasil Pemutihan Dari Tandan Kosong Kelapa Sawit Hasil Pemasakan Yang Menggunakan Limbah Lindi Hitam Siklus Ketiga
Authors: Sri Hidayati  , Ribut Sugiharto  , Ahmad Sapta Zuidar
Published: August 2020

Tandan Kosong Kelapa Sawit (TKKS)  merupakan  limbah agroindustri yang mengandung selulosa sehingga dapat dimanfaatkan sebagai bahan baku pembuatan pulp.  Proses pembuatan pulp dari TKKS secara formacell menghasilkan pulp dengan warna yang masih gelap sehingga memerlukan proses bleaching atau pemutihan.  Tujuan penelitian ini adalah mengetahui pengaruh lama waktu pemutihan dengan menggunakan H2O2 dengan konsentrasi 35% dalam media asam asetat terhadap karakteristik pulp dari TKKS yang dimasak menggunakan proses formacell.  Lama waktu pemutihan yang digunakan adalah 0,5, 1, 1,5, 2 dan 2,5 jam dengan menggunakan suhu pemasakan 80oC.  Penelitian diulang sebanyak 3 kali.  Hasil penelitian menunjukkan bahwa perlakuan yang terbaik terjadi pada lama pemutihan selama 2 jam yang menghasilkan rendemen sebesar 79,6%, selulosa 51,08%, bilangan permanganat 6,8 dan skor terhadap warna adalah 4,5 (putih).
Hegemoni dan Simbol Daerah
Authors: Dwiyana Habsary  , Sudjarwo
Published: August 2020

Provinsi Lampung merupakan daerah yang memiliki karakteristik yang unik. Salah satu keunikan daerah ini adalah adanya dua adat yang mendiami wilayah-wilayah tertentu provinsi ini. Kedua wilayah adat tersebut memiliki simbol masing-masing yang dijadikan ciri wilayah-wilayah tersebut. Simbol-simbol tersebut dianggap ‘penting’untuk dilestarikan. Asumsi tersebut menyebabkan adanya kebijakan-kebijakan yang dibuat dan diterapkan di daerah ini. Beberapa simbol tersebut adalah Siger, motif seni rupa dan lagu-lagu pop daerah. Penelitian ini memaparkan bagaimana upaya pemerintah daerah mengenalkan simbol-simbol tersebut. Lapisan masyarakat mana sajakah yang terkena ‘imbas’ dari kebijakan tersebut. Metode penelitian yang dilakukan adalah metode kualitatif. Adapun pendekatan yang digunakan adalah sosio-antropologi. Adapun data yang dikumpulkan menggunakan beberapa metode seperti studi pustaka, wawancara, dan dokumentasi. Hasil dari penilitian ini menunjukkan bahwa pemerintah menggunakan kekuasaannya untuk mengenalkan simbol sebagai identitas daerah. Kekuasaan tersebut diwujudkan dengan cara membuat sebuah PERDA (Peraturan Daerah), yang dibuat oleh Gubernur, serta beberapa himbauan yang dibuat oleh Walikota.
Peningkatan Produksi Bawang Merah Dan Beberapa Sifat Kimia Tanah Ultisol Akibat Aplikasi Vermikompos Dan Pupuk Pelengkap
Authors: Nisya Aryani  , Kus Hendarto  , Didin Wiharso  , Ainin Niswati
Published: August 2020

Tanah Ultisol yang miskin hara menghendaki pupuk organik dan pupuk lengkap untuk memperbaiki pertumbuhan tanaman bawang merah.  Penelitian ini bertujuan untuk mempelajari pengaruh pemberian pupuk vermikompos, pupuk pelengkap dan interaksinya terhadap pertumbuhan, produksi bawang merah dan  pH tanah, C-organik dan N-total pada tanah Ultisol yang ditanami bawang merah (A. ascalonicum L.).  Penelitian ini disusun dengan menggunakan rancangan acak kelompok (RAK), yang terdiri dari dua faktor, faktor pertama dosis vermikompos dan faktor kedua dosis pupuk pelengkap, seluruh perlakuan diulang sebanyak tiga kali.  Hasil penelitian menunjukkan bahwa: (1) Pemberian vermikompos 80 g media tanam (4%) lebih baik dibandingkan dengan 40 g per media tanam (2%) mampu meningkatkan pertumbuhan dan produksi bawang merah serta terjadi peningkatan pH tanah, C-organik dan N-total pada tanah Ultisol. (2) Pemberian pupuk pelengkap dengan konsentrasi 0,5 g L-1 mampu meningkatkan pertumbuhan dan produksi bawang merah serta terjadi peningkatan pH tanah dan N-total pada tanah Ultisol. (3) Terdapat interaksi antara pemberian vermikompos dan pupuk pelengkap. Pada pemberian vermikompos 80 g per media tanam dan pupuk pelengkap dengan konsentrasi 0,5 g L-1 menghasilkan produksi tertinggi sebesar 112,97 g setara dengan 45 t ha-1.  Jika konsentrasi pupuk pelengkap ditingkatkan, maka produksi menurun.  Pada pemberian vermikompos 40 g per media tanam dengan konsentrasi pupuk pelengkap semakin tinggi sampai dengan 1,5 g L-1 semua variabel pengamatanakan meningkat.
Kesediaan Petani Melakukan Kemitraan Dimasa Datang: Analisis Heckprobit Pada Petani Ubi Kayu Di Provinsi Lampung
Authors: Wan Abbas Zakaria  , Teguh Endaryanto  , Muhammad Ibnu  , Lina Marlina
Published: August 2020

Agribisnis ubi kayu memiliki dampak yang signifikan terhadap pembangunan berkelanjutan di Indonesia (terutama pada sektor pertanian). Namun, agribisnis ubi kayu masih memiliki berbagai tantangan yang perlu diatasi mulai dari subsistem penyediaan sarana produksi, budidaya atau produksi, panen dan pasca panen termasuk pengolahan hasil, kelembagaan, hingga subsistem pemasaran. Kemitraan/partnership antar pelaku dalam agribisnis diyakini sebagai salah satu pendekatan yang berpotensi mendukung pengembangan agribisnis ubi kayu secara berkelanjutan.  Beberapa model kemitraan pernah dilakukan, namun saat ini tidak ditemukan lagi adanya kemitraan antar pelaku agribisnis ubi kayu (terutama antara petani dan pabrik) di Provinsi Lampung.  Penelitian ini bertujuan untuk (1) menganalisis sebab-sebab berakhirnya kemitraan yang pernah dilakukan, dan (2) menganalisis determinan yang menjadi penentu kesediaan petani untuk melakukan kemitraan dimasa datang.  Penelitian dilakukan di sentra produksi ubikayu Provinsi Lampung yakni di Kabupaten Lampung Timur dan Lampung Tengah.  Responden diambil secara simple random sampling sebanyak 63 orang petani ubi kayu yang pernah melakukan kemitraan dan 63 orang petani ubi kayu yang belum pernah melakukan kemitraan, Metode analisis yang digunakan adalah analisis kuantitatif yang kredibel (regresi heckprobit) dikombinasikan dengan analisis kualitatif.  Hasil penelitian menunjukkan bahwa kemitraan pada umumnya berakhir atas kehendak petani  dengan alasan petani tidak ingin memiliki beban hutang, sudah banyak agen penjualan ubikayu, kemitraan tidak sesuai dengan isi perjanjian, dan administrasi kemitraan yang buruk. Kesediaan petani untuk melakukan kemitraan dipengaruhi secara langsung oleh variabel ‘hambatan melakukan penjualan ke non-pabrik’ dan ‘jenis komoditi yang ditanam’
Educação do Campo como categoria temática em revistas (2015-2020)
Authors: Santos Arlete Ramos dos , Soares Jamile de Souza , Souza Edmacy Quirina de
Published: August 2020

Este texto traz o estado da arte sobre a temática Educação do Campo em quatro revistas nacionais: Revista Educação & Formação, Revista Exitus, Revista Práxis Educacional e Revista Tempos e Espaços em Educação, de acordo o recorte temporal 2015-2020. Nas quatro revistas foi encontrado um total de 41 publicações, sendo que as publicações aconteceram em maior número em 2017, com 19 artigos que tratam da temática Educação do Campo. A partir do estudo, possibilitou-se analisar que a revista que possui mais publicações sobre a temática pesquisada é a Práxis Educacional com 24 artigos, seguida pela Revista Exitus com dez, Revista Educação & Formação com quatro, e por fim, a Revista Tempos e Espaços em Educação com três. Assim, diversas contribuições foram encontradas nas produções, que abarcam questões relacionadas às políticas públicas, práticas pedagógicas, movimentos sociais, Escolas Família Agrícola, formação em assentamentos e trajetórias de vida. Desse modo, as produções encontradas, são muito relevantes visto que, contribuem para nos ajudar a pensar as políticas públicas e a prática pedagógica de uma educação para o campo.
Determinants of Structural Transformation in ASEAN
Authors: Puspitowati Kalies Sirieh , Iskandar Deden Dinar
Published: August 2020

This study aims to analyze the determinants of the structural transformation in ASEAN countries. This study uses quantitative panel data from 9 countries in ASEAN from 2000 to 2017, thus makes up for 162 observations. This study employs panel data regression analysis with fixed effect model approach. In this study, the shifting of sectoral value added away from agriculture sectors indicates structural transformation. In particular, sectoral value added consists of the industrial value added and service value added. The results of this study shows that dependency ratio, income per capita, education, and trade significantly affect the increase of industrial value added during observation period. On the other hand, total population, dependency ratio, income per capita, education, control of corruption, and trade significantly increase the service value added over time.