bluuebunny/crossref_metadata_2025 huggingface dataset:
Esthetic rehabilitation with modified Groper’s appliance in a four year old child: A case report
Authors: Barjatya Khushboo , Shrivastava Upasana , Masih Updesh , Chand Binti Rani , Manker Abhilasha , Juneja Preene
Published: April 2021

The biggest task for a paediatric dentist is the restoration in a young child who has severely damaged anterior teeth and suffered from multiple tooth loss due to severe early childhood caries. Early loss of anterior teeth has a major effect on the psychology and behaviour of children. The aim of this paper is to describe the rehabilitation of deciduous anterior teeth with a fixed, aesthetic and functional appliance (modified Groper's Appliance). Such appliances are considered to be elective and their placement is normally at the demand of parents.
Inter-American Development Bank Seventh Annual Report 1966
Authors:   Inter-American Development Bank
Published: April 2021

The Seventh Annual Report contains a review of the Bank's operations in 1966.
Utilização de Tecnologias Digitais de Informação e Comunicação (TDIC) na aprendizagem das Ciências Exatas
Authors: Santos Maria Isabel Ferreira , Da Silva Rafael Roberto , Otoni Lorena Letícia Gomes , Da Silva Millena Dayse Barbosa , Lavor Neto Francisco Lopes
Published: April 2021

A forma de ensinar e aprender tem sido modelada pelas intensas transformações que a sociedade tem experimentado devido ao desenvolvimento tecnológico. Por conta disso, o presente trabalho buscou oferecer a estes estudantes uma forma de auxilia-los no aprendizado das disciplinas de física, química e matemática, com o uso do YouTube e através da produção de material didático a serem publicados neste site, sob forma de vídeos de cunho explicativo a respeito de determinada teoria, situação ou problema que esteja engajado no ensino das referidas disciplinas. A metodologia utilizada caracteriza-se como um estudo quantitativo, onde os dados coletados são provenientes de questionários, observações e análises de gráficos e repercussão das atividades desenvolvidas. O desenvolvimento da pesquisa, se deu em seis importantes fases, que são: realização de encontros virtuais dos participantes, elaboração de um questionário, gravação e divulgação dos vídeos, análises das respostas do questionário e da repercussão dos vídeos. A partir da análise dos gráficos gerados, é perceptível o crescente interesse dos usuários nos estudos de ciências exatas a partir de novas tecnologias educacionais.
Projetos de extensão na UFRN: o conhecimento produzido pela sociedade importa? uma análise sobre a experiência do SACI
Authors: Oliveira Gustavo , Camara Richardson
Published: April 2021

Este estudo objetiva compreender como os processos do componente curricular Saúde & Cidadania (SACI), do Departamento de Saúde Coletiva da Universidade Federal do Rio Grande do Norte, atendem às premissas da Extensão Universitária, no sentido de realizar um intercâmbio de saberes com a sociedade, visando a transformação social através do uso de técnicas instrucionais colaborativas. Através disso, busca entender como funcionam as ações de extensão da disciplina SACI, com a troca de saberes que é proporcionada. O estudo utiliza-se como ferramenta de analise uma combinação de métodos mistos (qualitativo e quantitativo) na análise e coleta de dados. Em um segundo momento, aplica estratégias qualitativas para melhor entendimento do perfil dos participantes do componente curricular, usando de entrevistas presencias e remotas com esses grupos integrantes da disciplina. Considerando o levantamento feito por essa pesquisa, esse componente curricular consegue ser uma forma de “laboratório” para inovações metodológicas e pedagógicas nas ações de extensão da UFRN, com resultados importantes para as mudanças na realidade social das comunidades em que atua.
Biological Activity of Ethanol Extracts and Essential Oils fromCurcuma longa(Zingiberaceae),Cymbopogon nardus(Gramineae), andAcorus calamus(Acoraceae) againstPlutella xylostella(Lepidoptera: Plutellidae)
Authors: Phukhahad Supannee , Auamcharoen Wanida
Published: April 2021

The diamondback moth, Plutella xylostella (L.), is a major pest that has developed resistance to many groups of synthetic insecticides. Natural plant products present reliable alternatives for its management. In this study, the activities of essential oils and ethanol extracts from three medicinal plants, i.e., Curcuma longa L. (Zingiberaceae), Cymbopogon nardus (L.) Rendle (Gramineae), and Acorus calamus L. (Acoraceae), from Thailand against P. xylostella were evaluated. Four concentrations of the extracts (i.e., 0.625, 1.25, 2.5, and 5%) were tested. The essential oils and ethanol extracts of Cu. longa, Cy. nardus, and A. calamus exhibited different degrees of activity against P. xylostella. Of these, both the essential oil and ethanol extract of A. calamus at 5% (v/v) concentration exhibited feeding toxicity for P. xylostella larvae, resulting in 100% mortality 1 d after treatment, with a median lethal concentration of 0.528% for the essential oil and 1.074% for the ethanol extract. Furthermore, all concentrations of A. calamus ethanol extract exhibited contact toxicity to the larvae, resulting in >75% mortality 3 d after treatment. All tested extracts, except A. calamus ethanol extract at the 0.625% concentration, exhibited high repellent activity against P. xylostella larvae, while Cu. longa and Cy. nardus ethanol extracts at 5% (w/v) concentration and A. calamus essential oil at 2.5% (v/v) concentration deterred oviposition by P. xylostella adults with an effective repellency >70%. These results indicate that both essential oils and ethanol extracts of these plants have the potential to be developed as insecticides for use in integrated pest management of P. xylostella.
THE CONTAGION EFFECTS OF COVID-19 PANDEMIC ON CRYPTOCURRENCIES
Authors: Ullah Mahboob , Shaikh Maria , Jadoon Imran Abbas , Khan Muhammad Azizullah , Alizai Shahida Habib
Published: April 2021

Purpose of the Study: In this research, the association between the COVID-19 pandemic and cryptocurrencies' price volatility has been examined.

Methodology: To check the contagion effects of the COVID-19 pandemic on the price volatility of cryptocurrencies: BITCOIN, LITECOIN, XRP(RIPPLE), and ETHEREUM, the prices of all four are deployed from 10th August 2016 to 10th August 2020. The exponential generalized autoregressive conditional heteroscedastic (EGARCH) model is used to check the leverage effect exists or not. Stata 16 has been used to execute all the tests.

Main Findings: The study's findings indicated that the leverage effect on the price volatility is present for LITECOIN, XRP(RIPPLE), and ETHEREUM but not for BITCOIN.

Applications of the study: This study is significant for investors to develop strategies for investments and secure the transactions and control the creation of additional currency units. Also, it gives insight to the policy and decision-makers to articulate proper guidelines to overcome or minimize the effect of COVID-19 on cryptocurrency.

Novelty/Originality of this Study: The motive for taking the crypto market into account is that the crypto market is one of the emerging markets and has started to have significance worldwide, linking with financial markets and economic growth. The leverage effect of COVID-19 is considered in this study as the epidemic has affected the supply and demand of goods due to lockdowns, blockages, and disruptions in delivery chains that lead to undiminished economic growth.
Little Bustard (Tetrax tetrax Linnaeus, 1758) Number Observation on the Rostov Nature Reserve Grounds the Middle of 20th Century to 2020
Authors: Minoranskiy Victor A. , Malinovskaya Yulia V. , Dankov Vasily I. , Kolesnikov Sergey I.
Published: April 2021

The purpose of the work. Elucidation of changes in the number and distribution of little bustard (Tetrax tetrax Linnaeus, 1758) on the territory of the Rostov Nature Reserve in the 20th-21st centuries and the reasons for their transformation. Place and methods of work. The reserve is located in the arid Eastern European steppes. The authors used their own observations from 1959 and publications on Tetrax tetrax L. The materials are collected using regular route methods and animal tracking at individual sites, as well as analysis of published information. Results. The little bustard is a characteristic steppe species that historically lived on the Don land. Since the mid-twentieth century, the steppes have experienced deep anthropogenic changes, which have had a great impact on this species. Currently, the little bustard in the steppe zone is a rare species. The creation of the reserve has had a positive impact on this species. In it, the little bustard is a small breeding species, and its number is constrained by a number of factors. The intensification of economic activity in the region and the aridization of the climate make it necessary to improve environmental protection work.
Axisymmetric Loading of a Plate on a Local Support in the Framework of the Rodionova-Titayev-Chernykh Theory
Authors: Velichko Viktor E. , Mostovykh Pavel S.
Published: April 2021

The problem of an axisymmetric bending of a plate with constant thickness under its own weight is considered. The plate has a circular support. The problem is solved in an axisymmetric statement using a nonclassical shell theory of Rodionova-Titaev-Chernykh (RTCh), which takes plate compression in thickness into account. The solution for this theory is obtained using Godunov's orthogonal sweep method. This solution is compared with the solution obtained using the general three-dimensional theory of elasticity, implemented in an open-source package Code_Aster using axisymmetric finite elements. The motivation for this study is the description of a stress-strain state of some variants of primary mirrors of large optical telescopes under the action of gravity. The obtained results characterizing the optical quality of the mirror surface are: the peak value (PV) and the root-mean square (RMS) of its displacement. A parametric study was carried out, i.e., the thickness of the plate and the half-width of the support were varied. The two methods were compared. It is shown that, as the plate thickness increases or the half-width of the support decreases, non-physical behaviour of the mirror surface takes place within the limits of the nonclassical theory of RTCh. A criterion of its applicability is therefore proposed.
Nagrobki z cmentarza żydowskiego w Brzezinach – świadectwo dziejów brzezińskich Żydów. Kilka uwag na marginesie inwentaryzacji
Authors: Milerowska Magdalena
Published: April 2021

Celem artykułu jest zaprezentowanie wstępnych wyników przeprowadzonej w latach 2013–2014 przez studentów i pracowników Katedry Historii Sztuki Uniwersytetu Łódzkiego inwentaryzacji macew z cmentarza żydowskiego w Brzezinach, zgromadzonych na tamtejszym placu muzealnym. Analizie poddany został zespół pomników składający się ze 135 płyt, a kryterium wyboru był stan ich zachowania. Co istotne, na niektórych fragmentach nagrobków, które posłużyły Niemcom za materiał do budowy mostu na rzece Mrożycy, zachowała się malatura. W toku przeprowadzonych badań wywnioskowano, że do początków XX wieku lokalne środowisko starotestamentowych było bardzo konserwatywne (świadczą o tym dekoracje i epigrafy na macewach). Spostrzeżenia te mogą być pomocne w uzupełnieniu historii i charakterystyki społeczności brzezińskich Żydów.
Cmentarz w malarstwie i grafice Józefa Czajkowskiego
Authors: Nowakowska Monika
Published: April 2021

Cmentarz to temat wręcz stworzony do snucia dekadenckich rozważań nad ulotnością i kruchością ludzkiego życia, nic zatem dziwnego, że chętnie podejmowali go młodopolscy moderniści. Jednym z nich był Józef Czajkowski (1872–1947) – twórca niezwykle wszechstronny i zasłużony dla rozwoju polskiej architektury, rzemiosła i edukacji, a przy tym grafik i malarz eksperymentujący z kompozycją, kolorem i warsztatem. Świadczy o tym litografia barwna z 1903 roku jego autorstwa, zatytułowana Cmentarz klasztorny w Krakowie, oraz obraz olejny na płótnie z 1910 roku Ogród zimą, będący powtórzeniem, ale i rozwinięciem graficznej kompozycji. Czajkowski, dla którego zima ze swoim krajobrazem była ulubioną do uwieczniania porą roku (czego potwierdzeniem są dwa wybitne płótna: Sad w zimie z 1900 roku ze zbiorów Muzeum Narodowego w Krakowie oraz namalowane rok później Zima. Paw w ogrodzie z Lwowskiej Galerii Sztuki), zarówno w litografii, jak i w obrazie olejnym dał popis maestrii w syntetyzowaniu kompozycji, budowaniu przestrzeni za pomocą kontrastów walorowych i barwnych i oddawaniu atmosfery miejsca. Zwłaszcza wysmakowane niuanse w obrębie wąskiej gamy bieli, czerni i brązów, zastosowane w Ogrodzie zimą, pokazują malarską klasę Czajkowskiego, jak się okazuje – równie wybitnego pejzażystę, jak jego młodszy brat Stanisław Czajkowski. Obaj bracia byli uczniami Jana Stanisławskiego. Józef wydaje się jednak być bardziej oryginalnym i wytrawnym kolorystą i symbolistą, choć nie poświęcił się malarstwu. W swojej dojrzałej twórczości dążył do syntezy sztuk, każde dzieło traktując wielopłaszczyznowo, pod względem poszukiwań tak warsztatowych, jak i treściowych. Dlatego wątek sepulkralny, pojawiający się także w obrazie Kirkut z 1900 roku, nie wydaje się być przypadkowy i zasługuje na wnikliwą analizę – także w kontekście badań nad grafiką i malarstwem młodopolskiego modernizmu.
Świadomość produktów bankowych w wybranych grupach społecznych
Authors: Benachir Alicja
Published: April 2021

Kwestia rzekomego braku wiedzy na temat produktów bankowych i mechanizmu ich działania jest podawana bardzo często za przyczynę wielu błędnych decyzji, związanych z zarządzaniem własnymi środkami pieniężnymi przez klientów banków i instytucji finansowych. Celem niniejszego opracowania jest ocena świadomości dotyczącej produktów bankowych w grupie detalicznych klientów banków. Autorka założyła, że poziom wiedzy finansowej Polaków jest niski, czego nie potwierdziły przeprowadzone przez nią badania empiryczne.
Pozasądowe rozwiązywanie sporów z podmiotem rynku finansowego jako element ochrony konsumenta
Authors: Bogusławski Adrian
Published: April 2021

Tematem rozważań w niniejszym artykule jest problematyka ochrony konsumenta oraz instrumentów mu przysługujących, zapewnionych przez ustawodawcę. Autor zbadał w szczególności problematykę pozasądowego rozwiązywania sporu z instytucją finansową, która została wprowadzona 1 stycznia 2016 r. Celem autora było przeprowadzenie analizy porównawczej w zakresie ochrony konsumenta – w stanie prawnym sprzed wprowadzenia instytucji Rzecznika Finansowego oraz po wprowadzeniu tej instytucji. Autor skupiając się na pozasądowym rozwiązywaniu sporu wskazał wady i zalety tego rodzaju postępowania – w oparciu o zasady i regulacje wskazane w tzw. ustawie reklamacyjnej. Na podstawie dokonanej analizy zostały przedstawione wnioski dotyczące oceny zasadności wprowadzenia instytucji Rzecznika Finansowego oraz pozasądowego rozwiązywania sporów.
Rzeczywistość postkryzysowa a działania banków i zachowania ich pracowników z punktu widzenia etyki
Authors: Świeszczak Krzysztof , Świeszczak Marika
Published: April 2021

Pojawiające się w ostatnich latach kryzysy stanowiły główną determinantę sposobu funkcjonowania sektora bankowego, aczkolwiek obecnie głównym zadaniem banków jako instytucji zaufania publicznego jest zaprojektowanie działań, dzięki którym możliwe będzie uniknięcie negatywnych konsekwencji potencjalnych, przyszłych zawirowań. Kluczową rolę odegrają ich pracownicy, zwłaszcza osoby współpracujące z klientami, gdyż w obliczu kryzysu zaufania odbudowa wiarygodności i pozytywnego wizerunku może stanowić fundament konkurencyjności banków. Celem artykułu jest analiza kondycji sektora bankowego z perspektywy globalnego kryzysu finansowego i kryzysu zaufania, przegląd działań z zakresu etyki przedsięwziętych przez banki w okresie po kryzysie oraz ocena ich skuteczności na podstawie opinii pracowników.
Rasgos vocacionales de estudiantes de bachillerato aspirantes a una formación inicial docente
Authors: Sunza Chan Sandra Paola , Medina Sanguino Yuliet Isabel , Rodriguez Cenn Neydi Daniela
Published: April 2021

El objetivo del presente artículo es describir los rasgos vocacionales (área de especialidad, motivos, intereses y aptitudes) de estudiantes de bachillerato del subsistema de Preparatorias Estatales en Yucatán, México, que aspiran a estudiar una licenciatura en el ámbito de la educación. Para ello se aplicó un estudio cuantitativo de naturaleza descriptiva y transeccional a una muestra de 252 estudiantes en fase de egreso de bachillerato, quienes manifestaron que cursar un programa enfocado en la formación inicial docente está entre sus tres primeras opciones de carrera a nivel de licenciatura. Los resultados muestran que menos de la mitad de los estudiantes cursaron un área de especialidad de bachillerato acorde con la formación docente. Por un lado se halló una tendencia a la elección de esta carrera en función de motivos externos tales como la influencia familiar y la situación económica. Por otro lado, el análisis mostró que únicamente la tercera parte de los estudiantes posee en un nivel alto los intereses vocacionales relacionados con una licenciatura en educación, mientras que las aptitudes vocacionales requeridas para este perfil profesional se manifestaron en un nivel bajo e intermedio entre los participantes. De modo general, el estudio lleva a conclusiones importantes en torno a los rasgos vocacionales de los estudiantes de bachillerato que aspiran a una formación inicial docente. Esto se debe a que muestran factores de riesgo potenciales para su futura permanencia y satisfacción vocacional en algún programa de licenciatura de este tipo pues los resultados manifiestan que los aspirantes poseen los requisitos mínimos para el área en la que desean formarse. Esto adquiere una mayor relevancia a la luz de los retos actuales para quienes se preparan para la profesión docente, ante los cambios sociales y necesidades emergentes en los contextos escolares que añaden a este perfil nuevas y abundantes demandas.
Fútbol como programa deportivo para menores con TEA en educación primaria
Authors: López Díaz José María , Moreno Rodríguez Ricardo , López Bastías José Luis
Published: April 2021

Las dificultades que tienen los niños con Trastorno del Espectro Autista (TEA) para realizar ejercicio físico y deportivo es una realidad. Esta situación provoca una baja participación en actividades físicas y deportivas con sus iguales. Los problemas que presentan a nivel motor dificultan la participación en actividades físicas grupales, provocando también un descenso en la socialización dentro del propio contexto deportivo (Kruger et al., 2019). Por ello es necesario proponer programas orientados a la práctica física y deportiva que favorezcan la participación en actividades físicas y un aumento de las relaciones sociales (Wong et al., 2015). Con la intención de promocionar el deporte para este colectivo se diseñó un programa de entrenamiento deportivo basado en juegos predeportivos de fútbol. Las sesiones sirvieron para potenciar las habilidades físicas y sociales con el fin de producir una mejora generalizada en ambas y, de esta forma, transferir sus capacidades y aprendizajes a otros contextos deportivos. La finalidad de este tipo de escuelas deportivas debe ser la de promover y fomentar la actividad física y deportiva para el colectivo de personas con TEA, además de preparar a todos los niños para que puedan participar en cualquier tipo de deporte. En ocasiones, la falta de información referente a la discapacidad puede provocar un rechazo hacia las personas con discapacidad por parte de los responsables encargados de dirigir la práctica deportiva, buscando la intención errónea de protegerles (González y Sosa, 2008). Para medir el estado de la cuestión referente al ocio deportivo de los niños con TEA y el nivel de satisfacción alcanzado con el programa de entrenamiento deportivo se administró un cuestionario a las familias de los participantes. Los resultados obtenidos al término de la investigación fueron positivos, lo que permitió justificar el impulso de la actividad física y deportiva como una alternativa de ocio para las personas con TEA.
Presentación
Authors: Vaillant Denise
Published: April 2021

La pandemia del COVID-19 generó enormes desafíos tanto para los estudiantes como para los docentes, desde la educación inicial hasta la superior.
En pocos días hubo que pasar de la presencialidad educativa a una total virtualidad de las clases, lo que llevó a desarrollar prácticas de urgencia. Los maestros, docentes y directivos hicieron lo posible –e incluso más– para poder dar continuidad a los procesos de aprendizaje.
La mirada al 2020 nos plantea, en el 2021, un sinfín de interrogantes: ¿Qué competencias y habilidades deberían adquirir los estudiantes en el contexto actual? ¿Cuál es el rol del docente? ¿Qué papel tiene la tecnología? ¿Cuáles son las políticas a impulsar para que se reincorporen aquellos que abandonaron las aulas en el 2020?
Survie et aptitudes des veaux issus de croisements entre Brunes des Alpes et Zébus Peuls dans la région des Cascades au Burkina Faso
Authors: Blagna Seydou , Koté Blami , Tellah Madjina , Djalal Ardjoun Khalil , Ouédraogo Jean , Mopaté Logtené Youssouf , Boly Hamidou
Published: April 2021

L’amélioration du potentiel génétique des bovins au Burkina Faso s’appuie sur des programmes de croisements avec des races exotiques par la promotion de l’insémination artificielle (IA) depuis un quart de siècle. Néanmoins, l’adaptation des veaux métis obtenus est controversée aussi bien en élevage périurbain que traditionnel. L’objectif de cette étude a été de déterminer le taux de survie et les aptitudes de métis F1 issus de croisements entre des bovins de races Brune des Alpes et Zébu Peul dans des élevages de la région des Cascades au Burkina Faso. L’étude a été menée sur 142 veaux répartis dans 60 élevages extensifs et semi-intensifs entre octobre 2013 et août 2017. Les animaux ont fait l’objet d’un suivi sanitaire rigoureux et d’une alimentation améliorée grâce à la production locale de fourrages. Le taux de survie des veaux à 42 mois a été estimé à 88 % avec une différence significative (p < 0,05) entre saisons avant sevrage, et entre systèmes d’élevage après sevrage. Au total, 26,76 % des métis F1 ont été atteints de cowdriose, dermatophilose, fièvre aphteuse ou trypanosomoses avant et après le sevrage. Rustiques (82,4 %) avec un rythme cardiaque normal (85,6 %), les croisés ont été dociles et affectueux (64,8 %). Les mâles et les femelles F1 ont été respectivement de potentiels reproducteurs et de véritables conductrices de troupeaux. Les femelles sont d’emblée utilisées pour améliorer la production laitière mais l’utilisation des mâles dans les croisements doit éviter la consanguinité dans les élevages. La survie des métis nécessite un suivi sanitaire permanent et une bonne conduite d’élevage. Cependant, considérant le taux de survie élevé, la bonne adaptation et la docilité des métis, l’IA est en mesure d’améliorer les productions animales bovines au Burkina Faso.
Comparaison des modèles mathématiques non linéaires et détermination du modèle qui décrit au mieux la croissance de la race Sardi
Authors: Balafrej Mohammed , Sahnoun Abdelatif , Sadik Mohamed
Published: April 2021

L’objectif de cette étude a été d’identifier le modèle mathématique non linéaire le plus approprié pour décrire la courbe de croissance de la race Sardi. Cette étude a été menée sur un troupeau d’ovins élevé dans la station de sélection de Krakra située à El Borouj au Maroc. Les effectifs comprenaient 763 mâles et 649 femelles correspondant respectivement à 3814 et 3240 observations pour les âges types : naissance, 10 jours, 30 jours, 90 jours et poids adulte. Pour modéliser la relation entre le poids et l’âge, cinq modèles ont été ajustés aux données de croissance, à savoir Brody, Logistic, Gompertz, Von Bertalanffy et Richards. Les modèles de croissance ont été ajustés aux données par la méthode du maximum de vraisemblance. Le critère d’information d’Akaike (AIC), le critère d’information bayésien (BIC) et la déviance ont été utilisés pour comparer la pertinence statistique des différents modèles de croissance. Parmi ces modèles, celui de von Bertalanffy a eu les plus petites valeurs d’AIC, du BIC et de la déviance, indiquant que ce modèle permettait la représentation des données la meilleure pour les deux sexes de cette race. Les paramètres de cette fonction peuvent être utilisés pour définir de nouveaux critères de sélection et améliorer les prévisionsde production par une meilleure gestion de l’alimentation.
A magyarországi középvállalkozások fenntartható üzleti modelljei a PLS-SEM tükrében
Authors: Gosztonyi Márton
Published: April 2021

A tanulmány arra keres választ, hogy a magyarországi középvállalkozások milyen fenntartható üzleti modellekkel (sustainable business model, SBM) jellemezhetők (illetve jellemezhetők-e velük egyáltalán). A szerző először a fenntartható vállalkozások és az SBM-ek elméleti hátterét tekinti át, majd a varianciaalapú strukturális egyenletek módszerével (partial least squares structural equation modelling, PLS-SEM) végez vizsgálatokat. Eredményei alapján a magyarországi középvállalkozások meglehetősen szűkkörűen értelmezik a fenntarthatóság fogalmát, a gazdasági és a társadalmi fejlődés, valamint a környezetvédelem hármasa helyett csupán az utóbbival azonosítják. Ebből kifolyólag SBM-jeik is széttöredezettek, nem tartalmaznak számos fontos kapcsolatot és visszacsatolási pontot, így nem kezelhetők „holisztikus” SBM-ként.
Improvement of Feed Processing Skills using Probiotics in Glondok and Panggang Village Communities, Banyuwangi
Authors: Hamid Iwan Sahrial , Fikri Faisal
Published: April 2021

This community empowerment aimed to introduce probiotics and improve breeders' skills in processing feed. Community empowerment activities that have been carried out include providing probiotics for ruminants which are given directly to breeders by visiting the location of the beef cattle pen. The community empowerment program was carried out for 5 months including counseling, training, evaluation, and training for cadres. From the evaluation results, there was an increase in affective from 20% to 60%, cognitive from 28% to 75%, and psychomotor from 8% to 80%. The cadres who were assigned will be assisted so that the development of livestock after being given probiotics can be monitored continuously.
Risco político na visão chinesa como determinante dos investimentos externos no setor petrolífero brasileiro (2011 a 2014): Parceiro estratégico ou apenas garantia da segurança energética chinesa?
Authors: Morales Martinez Elias David , Silva dos Santos Athilio
Published: April 2021

O crescimento da economia chinesa veio acompanhado do investimento para responder à demanda energética. No Brasil, a China se tornou importante investidor no setor petrolífero. Contudo, esquemas de corrupção assolaram as companhias petrolíferas chinesas. O trabalho pretende analisar se houve durante o processo de investimento das empresas petrolíferas chinesas no Brasil, a avaliação do risco político e se contestado, continuou devido o ambiente promissor para garantia da segurança energética chinesa.
Relações militares entre Estados Unidos e Colômbia: do Plano Colômbia ao Acordo de Paz (2000-2018)
Authors: João Estevam  , Chaves Cepik Marco Aurélio
Published: April 2021

Este artigo analisa as relações entre os Estados Unidos e a Colômbia na área militar entre 2000 e 2018. A hipótese de trabalho sustenta que existe uma continuidade fundamental e uma variação significativa ao longo do período. A continuidade é a profunda dependência colombiana em relação aos Estados Unidos em matéria de segurança. Na conjuntura definida pelo Plano Colômbia (2000-2009), tal dependência foi claramente quantitativa (tecnológica e financeira), enquanto na conjuntura definida pelo Acordo de Paz (2010-2018) a dependência foi mais qualitativa (doutrina e formação).
A Possible Mechanism for the Spontaneous Regression of Tumors
Authors: Noe Garry
Published: April 2021

Neither tumor growth nor regression is truly spontaneous, but both may under special circumstances be driven by similar events. We describe a sequence of processes that typically leads to tumor progression but may on occasion inadvertently result in regression. A possible procedure for reducing tumor mass through a controlled intervention is also outlined.
Influence of Pre-Mating Plasma Prolactin Profile on Reproductive Performance of California Doe Rabbits
Authors: Abdel-Khalek Abdel-Khalek El-Sayed , Kalaba Zyad Mohamed , Zaghloul Helmy , Younan George
Published: April 2021

Abstract: Ovulation failure was associated with a reduction in pre-mating concentrations of oestradiol-17β and prolactin (PRL). The present study aimed to evaluate whether pre-mating PRL levels have a role on the reproductive efficiency of doe rabbits. A total of 78 multiparous California does (2nd parity) were divided, according to plasma pre-mating PRL, into five categories, >20-25, >25-30, >30-35, >35-40, and >40-45 ng/ml. Does in all categories were naturally mated and kindled, then their reproductive measurements and progesterone (P4) levels were determined. Results show that pre-mating PRL averaged 23.60±0.78, 28.00±0.83, 33.46±0.43, 38.17±0.49 and 41.98±0.68 ng/ml in five categories (p < 0.05), respectively, representing the highest distribution (38.5%) in the 3rd-category. Live body weight of doe rabbits, at mating, pregnancy, and parturition increased (p < 0.05) with increasing pre-mating PRL level. The number of services, litter size, and pregnancy rate increased (p < 0.05) by increasing PRL levels. Reproductive traits and P4 level at mid-pregnancy of does, and average weight of kits at birth increased (p < 0.05) by increasing PRL levels. The pre-mating PRL profile is important for the identification of reproductive performance in doe rabbits.
Effect of Sound Source Location and Spatial Hearing on the Vestibulo-Ocular Reflex (VOR)
Authors:   ,   University of Tennessee Health Science Center, Easterday Mary
Published: April 2021

Accurate measurement of the vestibulo-ocular reflex (VOR) is imperative in differential diagnosis of vestibular disorders and balance function. However, the assessment protocol faces a number of limitations, including the need to control for extra- vestibular sensory factors such as hearing. Previous research has shown that the use of an auditory stimulus can have a significant effect on functional measures of balance, and many have contributed effects to be the result of spatial hearing. However, no studies have directly assessed the effect of speaker location on the VOR nor investigated correlations of functional spatial hearing with the VOR. Therefore, the aims of this study were to 1) assess the effect of speaker location on the VOR and 2) investigate if spatial hearing abilities are correlated with the strength of the VOR. A between subjects repeated measures design was utilized with a child group (age 6-9 years) and an adult group (18-40 years). The rationale of the two groups was to compare differences in a group with underdeveloped localization abilities (child) and a group with matured localization abilities (adult). A total of 22 children and 23 adults participated in this study. Localization ability was measured using the root mean square (RMS) error method. VOR gain was measured using the rotational chair test at a rate of .08 Hz in the following auditory conditions: silent (insert earphones turned off), insert earphones turned on, external speaker at 0° azimuth rotating with participant, and external stationary speaker. Order of testing was randomized to control for any order effects. An independent samples t-test confirmed a significant difference in RMS error between groups with the child group performing worse than the adults. Subsequent multivariate analysis of variance indicated a significant effect for speaker location with the external moving speaker having significantly lower gain and the external stationary speaker having significantly increased gain for both child and adult groups. Correlations were run for both groups for both fixed and moving speaker conditions. No correlation was seen in either condition for the child group, however, a positive correlation was seen for both conditions for the adult group, meaning as RMS error increased so did VOR gain. These results indicate the possible need to control for environmental auditory stimulus location when undergoing vestibular assessment. However, further studies need to be performed to corroborate the evidence presented.
Patogen Penyakit Busuk Buah Kakao: Karakter dan Patogenisitas Phytophthora palmivora Isolat Asal Pakuwon, Sukabumi
Authors: Wartono Wartono , Taufiq Efi
Published: April 2021

Phytophthora palmivora (Butl.) is a major obstacle in cocoa cultivation worldwide. The study aimed to determine the morphological character and pathogenicity of P. palmivora Pakuwon isolate. The study was carried out from November 2020 to January 2021, which consisted of 3 activities e.g. (1) pathogen isolation, tests on growth rate and colony formation, and stimulation of sporangia, zoospore, and clamydospore formation, which was performed  in CMA, PDA, and mung bean media. The parameters observed were colony shape, growth rate, shape and size of sporangia, papillae, and sporangiophores, also chlamydospore and hyphal diameters; (2) To determine the possibility of different mating types, two isolates were grown on CMA medium in one petri dish; (3) The pathogenicity test, using a detached fruit assay by inoculating the cocoa pods with mycelium plug and zoospores. The patogenicity test was conducted in a completely randomized design with 4 replications, and the parameter observed was the area of the spot. The isolation obtained 3 isolates, the mycelium of all three isolates showed white in color, cottony, and  no pattern in shape. The diameters of hyphae and chlamydospores were 5.6 - 6.3 mm and 39.0 - 43.2 mm, respectively. The sporangia were ovoid, ellipsoid, subsperic, obpyriform, and irregular. Sporangia measured 5.6 - 60.1 mm in length and 30.4 - 32.9 mm in width. Papillae were obviously visible with an average length of 6.8 mm. Test on mating types showed no oospores formed. PPkw1 isolates showed higher growth rates and more pathogenic than PPkw2 and PPkw3. The difference of pathogenicity of each P. palmivora isolates originated from Pakuwon can be used for selection of cocoa resistance in the future.
Emisi Gas Rumah Kaca dan Cadangan Karbon pada Perkebunan Kopi Organik dan Konvensional di Kabupaten Badung, Bali
Authors: Yunianti Ika Ferry , Aprianthina I.D.A Yona , Kartikawati Rina , Yulianingsih Eni
Published: April 2021

Coffee is a commodity that has an important role in the national economy. Currently, coffee cultivation is threatened by climate change caused by global warming due to increased green house gas (GHG) emissions. The organic  plantation model is a farming model that is considered to increase soil and crop productivity, reduce GHG emissions, and increase carbon sequestration effectively. The study was aimed to estimate GHG emissions and carbon stocks in organic and conventional coffee plantations in Badung Regency, Bali Province and  Laboratory in Balai Penelitian Lingkungan Pertanian, Pati, Jawa Tengah Province, in July 2018. The study was conducted in smallholder coffee plantations in Badung Regency and the analysis was carried out at Laboratory of Indonesian Agricultural Environtment Research Institute. This study used a survey method, while the sampling used a purposive sampling method in organic and conventional coffee plantation. GHG emissions measurement was carried out with a close chamber method by simultaneously the carbon stocks measurement was carried out with the non-destructive method for plant biomass and destructive for understorey. The results showed that organic and conventional coffee plantations emitted GHG by 20.71 and 39.75 ton CO2e ha-1 and stored carbon stock by 227.56 and 288.31 ton CO2e  ha-1, respectively. The differences in GHG emissions and carbon stocks are partly due to differences in management system and the diversity of plant. The management system of the organic coffee plantation should be improved to support handling of the impacts of climate change in Bali Province.
Optimalisasi Pemanfaatan Institusional Repository melalui Penerapan Upload Mandiri
Authors: Mansyur Moh , Supriyanto Hary
Published: April 2021

Institutional Repository (IR) which contains local works of the academic community is an intellectual property owned by a tertiary institution. This intellectual work can be in the form of books, papers, scientific articles, research results, proceedings, theses, theses, dissertations and others produced by Lecturers, Librarians, Employees, and Students. Proper management and easy access must be a priority so that information dissemination and IR utilization can be optimized. One effort to optimize the use of IR is the existence of an independent upload program. With independent uploads, it is expected that IR collections will develop more dynamically in terms of quality and quantity because of the convenience of the visitors in publishing their thoughts. This simplicity is due to independent uploads not limited by space and time. Whenever and wherever, Pemustaka can upload independently easily because IR media is online. This study aims to find out what is meant by IR independent uploads, what are the menus and contents of metadata in eprint-based repositories, and the extent to which the effectiveness and efficiency of independent upload programs for intellectual works (Thesis, Thesis, Desertation, and scientific work) Civitas Academica of UIN Sunan Ampel in the development of Institutional Repositories.
Problematika pengembangan kepustakaan Islam: studi kasus di empat perpustakaan Perguruan Tinggi Keagamaan Islam Negeri (PTKIN) Jawa Timur
Authors: Mufid Mufid , Zuntriana Ari
Published: April 2021

Introduction. This study aims to examine the Islamic collection development process conducted by 4 (four) Islamic universities’ libraries in East Java, including selection criteria and tools, the use of the collection, and challenges faced by the librarian Data Collection Method. Using a mixed-methods approach with surveys and interviews, four head of libraries and 338 students participated in this research. Analysis Data. Data from the questionnaire were analyzed using descriptive quantitative analysis method while the qualitative data from interviews were analyzed using the thematic analysis technique. Results and Discussions. The results showed that the libraries did not have any written collection development policies. The four libraries have used the right selection tools, but most of them have not utilized reviews of books based on online sources and social media. At present, the four libraries have not had any special subjects which potentially emerged as a distinction of the libraries’ collection. Nevertheless, there has been a plan to develop such a special subject of Islamic collection. The use of Islamic literature collections among students were considered in medium level of use. The challenges in developing Islamic literature collections are sourced both from internal and external sources. Internally, the library has not evaluated their collection development policies. While the low participation of lecturers in the development of library collections emerged as obstacles from external sources. Conclusions. Based on the findings, it can be concluded that the libraries involved in this study still needs improvements in some areas.
A Well Flux Surveillance and Production Ramp-Up Method for Openhole Standalone Screen Completion
Authors: Karaaslan M. , Wong G. K. , Soter K. L. , Hicking S. H. , Yousif Majeed H.
Published: April 2021

Well surveillance requires practical models to balance the reward of maximizing production with the risk of ramping up production too much, which damages the completion. In this paper we present a method to monitor and ramp up production for openhole standalone screen (OH-SAS) completion. The objective is to optimize production using pressure transient analyses to assess the completion impairment and failure risks during the production ramp-up process. The flux model incorporates filter-cake pinholes, which are formed from nonuniform deposition and cleanup of filter cake during drilling and completion operations. Pinholes cause concentrated fluxes and increase completion failure risks. The method comprises three components, which are (1) determine pinhole properties from laboratory tests, (2) relate completion pressure drop of production through pinholes to pressure transient analyses, and (3) distribute fluxes in the standalone screen wellbore. Examples are presented and show that the completion pressure drop as a function of flow rate is nonlinear and higher with pinholes than without pinholes. By not incorporating pinholes, operations can potentially limit ramp-up. Flux distribution examples show that the largest impingement or radial velocity is at the top section of screen. The axial annular flow velocity or scouring velocity is two orders of magnitude larger than the screen impingement velocity. An integrated flux surveillance method for OH-SAS completion is presented for field applications.
Comprehensive Analysis of Angiogenesis subtype of Squamous Cell Carcinoma
Authors: Qin Fanglu , Deng Kun , Qin Junqi , Xu Zhanyu , Yuan Liqiang , Wei Jiangbo , Sun Yu , Zheng Tiaozhan , Li Shikang
Published: April 2021

Background: Squamous cell carcinoma (SCC) is a disease with distinct management complexities as it displays a remarkably heterogeneous molecular subtype. However, the landscape of angiogenesis for SCC is not fully investigated.Method and materials: The integrated analysis for the angiogenesis-related subtype for SCC and was performed using the ConsensusClusterPlus package based on angiogenesis-related genes and TCGA data respectively. We analyzed the alternation of the genes and miRNAs as well as pathways associated with angiogenesis. Next, we evaluated the prognostic value of the SCC subtype, the mode of regulation, the correlation with genomic characteristics, immune microenvironment, and clinical features of the angiogenesis subtypes.Results: Totally, a total of 1368 SCC samples were included in this study. Two angiogenesis subtypes were then identified based on the one hundred and sixty-three angiogenesis-related genes with subtype1 of 951 SCC patients and subtype2 of 417 SCC. GSEA revealed that angiogenesis and epithelial-mesenchymal transition, inflammatory response, hypoxia was enriched in the subtype1 and suggested that the subtype 1 were angiogenesis-subtype of SCC. Eight of the 15 immune checkpoints (ADORA2A, BTLA, CD276, CYBB, HAVCR2, SIGLEC7, SIGLEC9, and VTCN1) were significantly up-regulated while C10orf54 were significantly down-regulated in the angiogenesis subtype. The survival analysis revealed that the patients in the angiogenesis subtype have a poorer survival outcome than that in the non-angiogenesis subtype (P=0.017 for disease free interval and P=0.00013 for overall survival).Conclusion: Our analysis suggests that the importance of the angiogenesis pathway in SCC and may represent an underappreciated hallmark of SCC progression.
Energy and Reactivity Profile and Proton Affinity Analysis of Rimegepant with Special Reference to its Potential Activity against SARS-Cov-2 Virus Proteins using Molecular Dynamics
Authors: Pooventhiran T , Marondedze Ephraim Felix , Govender Penny Poomani , Bhattacharyya Utsab , Rao D Jagadeeswara , Aazam Elham S , Kuthanapillil Jinesh M , E Tomlal Jose , Thomas Renjith
Published: April 2021

Rimegepant is a new medicine developed for the management of chronic headache due to migraine. This manuscript is an attempt to study the various structural, physical and chemical properties of the molecules. The molecule was optimised using B3LYP functional with 6-311G+(2d,p) basis set. Excited state properties of the compound were studied using CAM-B3LYP functional with same basis sets using IEFPCM model in methanol for the implicit solvent atmosphere. The various electronic descriptors helped to identify the reactivity behaviour and stability. The compound is found to possess good nonlinear optical properties in gas phase. The various intramolecular electronic delocalisations and non-covalent interactions were analysed and explained. As the compound contain several heterocyclic nitrogen atoms, they have potential proton abstraction features, which was analysed energetically. The most important result from this study is from the molecular docking analysis which indicates that rimegepant binds irreversibly with three established SARS-CoV-2 proteins with ID 6LU7, 6M03 and 6W63 with docking scores − 9.2988, -8.3629 and − 9.5421 kcal/mol respectively. Further assessment of docked complexes with molecular dynamics simulations revealed that hydrophobic interactions, water bridges and π – π interactions play a signification role in stabilising the ligand within the binding region of respective proteins. MMGBSA free energies further demonstrated that rimegepant is more stable when complexed with 6LU7 among the selected PDB models. As the pharmacology and pharmacokinetics of this molecule are already established, rimegepant can be considered as an ideal candidate with potential for use in the treatment of COVID patients after clinical studies.
Extraction and Characterization of Antibiotic Compounds produced by Streptomyces spp. VITGV01 against Selected Human Pathogens
Authors: P Veilumuthu , R Siva , J Godwin Christopher
Published: April 2021

Streptomyces are well known to produce a large number of diverse antibiotic compounds. New environments are being explored and some new Streptomyces strains have been discovered; the potential of the plant endophytic environments has been highly explored during the last decade. In the present study, an endophytic actinomycete, VITGV01, was isolated from a farm tomato plant collected from an agricultural field. These actinomycetes are cultured in ISP2 medium supplemented with nystatin (15µg/ml) and nalidixic acid (50µg/ml). Based on the 16S rRNA analysis and physiological tests, this isolate was found to be a member of the known genus Streptomyces spp. and suggesting that it might be a new spp. The isolated strain showed morphological and chemical characteristics of the genus Streptomyces. The strain VITGV01 produced different antibiotics on different media such as yeast extract, malt extract, glucose medium, which were active against some Gram-positive and negative bacteria [Bacillus subtilis (MTCC2756), Staphylococcus aureus (MTCC737), Escherichia coli – (MTCC1687), and Klebsiella pneumoniae (MTCC109)]. The primary and secondary screening was performed against these human pathogens. Maximum zone of inhibition was observed against K. pneumoniae (22 mm) and minimal zone of inhibition against B. subtilis (8 mm). Maximum biomass production was recorded in media containing 1% sucrose and 1% yeast extract cultured at pH 7.0 for 7 days at 30◦C. FTIR analysis revealed amine, alkane (C = C) of the aromatic ring, secondary alcohol, and alkyl halide groups. The GC–MS data showed twenty compounds, of which fifteen are antimicrobial compounds.