bluuebunny/crossref_metadata_2025 huggingface dataset:
The Influence of Transformational Leadership, Organizational Culture, Work Environment, Organizational Commitment on Job Satisfaction of Batam University employees
Authors: Rumengan Tommy , Rumengan Jemmy , Gunawan Dahlan
Published: January 2021

This study, researchers used respondent data, such as gender, age and duration of  work of respondents to be able to provide information about the characteristics of  respondents. The study population was employees at Batam University, which consisted  of dozens and employees. The sample is determined by the number of sample members  (sample size) of 60 people by proportional random sampling technique. 25 lecturers and  35 Batam university employees. This research is the result of a field study to obtain  questionnaire answer data that measures five main variables in this study, namely  Transformational Leadership, Organizational Culture, Work Environment, Organizational  Commitment to Job Satisfaction of Batam University employees. The instrument was  developed based on theoretical studies, then defined in conceptual definitions, operational  definitions, and developed through lattice instruments and technical techniques. Knitted  data analysis uses descriptive statistics and statistical analysis to test the significance of  path coefficients, descriptive statistics to present data in the form of frequency  distribution tables, histograms, and the number of statistics such as media, modes,  averages, variants, and foreign standards. exchange. Statistical tests are used to test the  significance of path coefficients using Partial Least Square (PLS) which is a Multivariate  Analysis in the second generation using structural equation modeling (SEM). PLS can be  used for a small number of samples, and of course with a large number of samples will be  better able to improve the accuracy of estimates. PLS does not require the assumption  that data distribution must be normal or not. The construct form can use a reflective or  formative model in which from the results of statistical analysis, the relationship between  variables formulated in the formulation of a problem as many as 7 pieces obtained  significant results.
A concepção de uma disciplina de formação de professores no contexto de FLE
Authors: Kaspary Cíntia Voos , Parot de Sousa Claire
Published: January 2021

En 2020, la pandémie provoquée par la COVID-19 a entraîné de nombreuses adaptations pour offrir aux étudiants des alternatives afin de poursuivre leurs études universitaires. Dans le cadre de l'Université Fédérale de Bahia (UFBA), située à Salvador, Brésil, un semestre supplémentaire a été proposé, au sein duquel un environnement numérique d’apprentissage (ENA) a été conçu pour offrir des cours issus du programme d’études obligatoire et la possibilité d’en créer de nouveaux, pouvant répondre aux demandes des étudiants. Face à cette situation d'enseignement particulière, l'objectif de cet article est de présenter le processus de création d'un cours destiné à la formation de futurs enseignants de Français Langue Étrangère (FLE). A cet effet, une sélection d’écrivains et l’analyse d’activités intégrant l'utilisation des outils didactiques disponibles et l’enseignement de la littérature dans cette situation d’apprentissage sont proposés. Finalement, des considérations sur la mise en place de ce cours dans ce contexte d’enseignement-apprentissage en ligne, qui prennent en considération les idées de Puren (2011), Hirschsprung (2005) et Perrenoud (1999, 2003) sont avancées.
Isolasi dan Identifikasi Senyawa Metabolit Sekunder Ekstrak n-Heksana Batang Benalu (Dendrophthoe falcata (L.f) Ettingsh)
Authors: Hasbullah Herianti , Sudding Sudding , Herawati Netti
Published: January 2021

ABSTRAK

Penelitian ini adalah penelitian eksplorasi yang bertujuan untuk mengisolasi senyawa metabolit sekunder yang terdapat dalam ekstrak n- heksana batang benalu pohon kakao Dendrophthoe falcata (L.f) Ettingsh, yang berasal dari Desa Cendana, Kec. Burau, Kab. Luwu Timur Makassar, Sulawesi Selatan. Isolasi dilakukan dalam beberapa tahap yaitu maserasi, partisi dengan n-heksana, fraksinasi, uji kemurnian dan identifikasi. Hasil penelitian berupa isolat murni berbentuk kristal jarum berwarna putih dengan titik leleh 1400C. Hasil uji dengan pereaksi wagner membentuk endapan cokelat. Identifikasi dengan spektrum infra merah yang menunjukkan bilangan gelombang (cm-1) yakni: 3550,95 (N-H); 1696,36 (C=O); 1303,88 (CN), 2945,30 dan 2856,58 (CH alifatik), 883,40 (C-H aromatik), 1454,33 (C=C). Berdasarkan hasil IR dan Uji warna menunjukkan bahwa isolat diduga senyawa golongan alkaloid.

Kata kunci : Isolasi Dendrophthoe falcata (L.f) Ettingsh, senyawa alkaloid

ABSTRACT

This study is exploratory research that aimed to isolate and identify the secondary metabolite compound contained in the n-hexane extract of D.falcata (L.f) Ettingsh from Cendana village, Burau district, Luwu Timur Regency of Makassar. Isolation is done in several stages; maceration, partitioning with n-hexane, fractionation, purification and dentification. The result was in pure needle crystal shape with a melting point of 140,2°C. The test result with the Wagner reagent test showed the formation of a brown precipited. Analyzing of IR Spectrum of Isolate showed Several wave numbers; 3550,95 (N-H); 1696,36 (C=O); 1303,88 (CN), 2945,30 dan 2856,58 (CH alifatik), 883,40 (C-H aromatik), 1454,33 (C=C). Based on the result of IR datas and reagen test it is suggest that the isolate is alkaloid compound.

Keywords : Isolation, Dendrophthoe falcata (L.f) Ettingsh, alkaloid compound
Penentuan pH Optimum Gel Metasilikat Sekam Padi sebagai Media Tumbuh Kristal Tunggal Kalsium Tartrat Tetrahidrat (CaC4H4O6.4H2O)
Authors: FR Yunanda , Putri Suriati Eka , Hasri Hasri , Ramdani Ramdani
Published: January 2021

ABSTRAK

Penelitian ini bertujuan untuk mengetahui pH optimum sintesis gel metasilikat sekam padi sebagai media tumbuh kristal tunggal kalsium tartrat tetrahidrat (CaTT). Tahapan penelitian ini meliputi preparasi sampel, pembentukan gel metasilikat, sintesis kristal CaTT dan karakterisasi gel metasilikat. Abu sekam padi yang digunakan mengandung SiO2 sebesar 98,45% berpotensi untuk membentuk filtrat natrium silikat (Na2SiO3). Filtrat natrium silikat direaksikan dengan asam tartrat (C4H6O6) menghasilkan gel metasilikat pada pH 5,00; 5,25; 5,50; 5,75 dan 6,00. Supernatan kalsium klorida (CaCl¬2) berdifusi ke dalam gel membentuk kristal CaTT berwarna putih jernih sebanyak 0,2649 g pada pH optimum 5,25. Analisis gugus fungsi gel metasilikat menggunakan spektroskopi FTIR memberikan serapan yang khas untuk gugus fungsi –OH pada 3400,05 cm-1 dan 920,05 cm-1, gugus fungsi C=O pada 1622,13 cm-1 dan C-O pada 1346,31 cm-1, serta gugus Si-O-Si pada 1064,71 cm-1. Karakterisasi gel metasilikat menggunakan XRD mengindikasikan bahwa struktur gel metasilikat hasil sintesis tersusun atas garam Na2C4H4O6.2H2O, senyawa SiO2 dan C-grafit. Berdasarkan analisis gugus fungsi menggunakan FTIR dan karakterisasi menggunakan XRD, dapat disimpulkan bahwa sekam padi berpotensi untuk dijadikan gel metasilikat sebagai media tumbuh kristal tunggal CaTT.

Kata kunci: Sekam padi, Natrium Silikat, Gel metasilikat, Kalsium tartrat tetrahidrat

ABSTRACT

The aims of this study was to determine the optimum pH of metasilicate gel rice husk as medium to grow single crystal of calcium tartrate tetrahydrate (CaC4H4O6.4H2O). This research was carried out inseveral stage namely sample preparation, metasilicate gel synthesis, crystal CaTT synthesis, and metasilicate gel characterization. Rice husk ash that used content SiO2 of 98.45 %, it was potential to be a sodium silicate filtrate. Filtrate of sodium silicate was reacted with tartrat acid (C4H6O6) and produce metasilicate gel with pH 5,00; 5,25; 5,50; 5,75 and 6,00. The supernatant of calcium chloride (CaCl¬2) diffuse into the gel and formed the clear white crystal CaTT as much as 0,2649 g at the optimum pH 5,25. Analysis of functional groups of metasilicate gel by FTIR provides the specific absorption of –OH group at 3400.05 cm-1 and 920.05 cm-1, C=O group at 1622.13 cm-1 and C-O group at 1346.31 cm-1, and the Si-O-Si group at 1064.71 cm-1. Characterization of gel metasilicate by XRD indicated that metasilicate gel produced formed on Na2C4H4O6.2H2O, compound of SiO2 and C-Grafit. Based on the analysis of functional groups by FTIR and characterization by XRD, it was concluded that the rice husk was potentially to be a sources of metasilicate gel as medium to grow single crystal of CaTT.

Keywords: Rice Husk, Sodium Silicate, Gel metasilicate, Calcium tartrate tetrahydrate
Pengembangan modul praktikum berbasis inkuiri terbimbing pada peserta didik kelas XI MIA di SMAN 5 Makassar (Studi pada Materi Pokok Larutan Penyangga)
Authors: Ariyaldi Ariyaldi , Yunus Muh , Auliah Army
Published: January 2021

Penelitian ini merupakan penelitian pengembangan (research and development) yang bertujuan untuk menghasilkan modul praktikum berbasis inkuiri terbimbing yang bersifat valid, praktis dan efektif. Pengembangan modul praktikum ini mengacu pada model pengembangan 4-D oleh thiagarajan yang meliputi tahap pendefinisian (define), perancangan (design), pengembangan (develop), dan penyebarluasan (disseminate). Modul praktikum ini telah melalui tahap validasi oleh validator ahli dan telah melalui uji coba terbatas, serta mengalami revisi oleh pengembang sehingga menghasilkan modul praktikum yang bersifat valid, praktis dan efektif. Hasil penelitian pengembangan modul praktikum ini adalah : 1) penilaian kevalidan ahli materi sebesar 3,65 dengan kategori sangat valid, hasil penilaian tampilan modul sebesar 3,68 juga memperoleh kategori sangat valid. 2) respon peserta didik dan guru juga memperoleh 83,14% dan 88,98% dengan kategori sangat tinggi sehingga modul praktikum dikatakan praktis; 3) pada tahap uji coba terbatas kepada 32 peserta didik kelas XI MIA di SMAN 5 Makassar memperoleh masing-masing rata-rata 87,50% yang berada pada kategori tinggi, sehingga modul praktikum dikatakan efektif. Kesimpulan dari penelitian ini adalah modul praktikum berbasis inkuiri terbimbing yang dikembangkan dengan model 4D bersifat valid, praktis dan efektif untuk digunakan dalam pembelajaran.

Kata kunci: Modul praktikum, Inkuiri terbimbing, Larutan penyangga

ABSTRACT

This study was a research and development that aimed to develop a experiment module based on guided inquiry which valid, effective, and practic. The development of this experiment module reffered development model of 4-D by thiagarajan that included are define, design, develop and disseminate of phases. This experiment module has validated by expert, and had been tried limitedly, and revised by order to obtain avalid, practical and effective experiment module. The result of this study were: 1) Validation of the validity of the material expert was 3.65 with a very valid category, the module display evaluation was 3.68 which very valid category; 2) students and teachers responses received 83,14% and 88.98% which very high category, so experiment module could be said practical; 3) in phase of tried limitedly to 32 students of class XI MIA SMAN 5 Makassar obtained the average score of students learning result was 87,50% which was high category. Experiment module could be said effective. The conclusion of this research was experiment module based on guided inquiry developed by 4D model was valid, practical, and effective to use on learning.

Keywords: Experiment module, Buffer solution, Guided inquiry
Building Leadership resilience: The CORE Framework
Authors:   Center for Creative Leadership, Fernandez Katya , Ruderman Marian , Clerkin Cathleen
Published: January 2021

Effectively building resilience in today’s increasingly uncertain and complex world is crucial, especially for those in leadership positions. The current paper offers the following insights for leaders interested in building resilience: • A brief overview of what we know about resilience and burnout. This overview is informed by decades of research in leadership development. • A new, integrated framework for cultivating resilience in leaders: The CORE (Comprehensive Resilience) Framework. This framework is focused on four areas (physical, mental, emotional, and social) and takes a whole-self approach to resilience by developing a diverse set of responses to change and disruption. • A review of the eight practices designed to help build resilience within the CORE framework: sleep, physical activity, mindfulness, cognitive reappraisal, savoring, gratitude, social connection, and social contact. These practices were selected because there is empirical evidence of their effectiveness specifically in leaders and because they are simple, both in nature and in how they can integrated into daily life. Each practice review also includes tips for how to incorporate these practices into daily life. • A discussion of the practical and future applications of the CORE framework.
Las escuelas como espacios para la construcción de la paz y la convivencia. Una propuesta posible con niños y niñas de primarias en México
Authors: Duarte José , Mendoza Amys
Published: January 2021

This research aimed to implement a Peace Education Project (PEP) in a first-grade classroom of a primary school located in San Cristobal de las Casas, Chiapas, Mexico. The intervention promoted a set of prosocial competencies in students, teachers and families; for this universal and focused strategies were developed. A mixed approach was used, with evaluations before and after. Information was collected through participatory action-research. Some findings indicate that systematic PEPs in the classroom decrease violence and strengthen prosociability. There was a reduction in the school violence index from 1.12 to 1.10 and an increase in student prosociability from 3.34 to 3.70. The strategies favorably affected the maintenance of a school climate of cordiality, greater empathy, assertiveness, better management of emotions and an increase in friendship networks.
Characteristics, opportunities and challenges of osteopathy in the perception of osteopaths in Switzerland - a qualitative study - the complete research report
Authors: Meier Manuela Dorothea
Published: January 2021

Background:
As a heterogeneous discipline, osteopathy is currently confronted with fundamental questions of identity, which it has to answer as a discipline in the field of tension between professional challenges and scientific demands.

Aims:
The aim of this thesis is to identify relevant components of the status quo of osteopathy in Switzerland and to present them using a category system.

Methods:
Seven guideline-based, problem-oriented interviews with Swiss osteopaths are conducted, transcribed and evaluated on the basis of Philipp Mayring's qualitative content analysis using inductive category formation and the results presented as a category tree.

Results:
Extensive partial aspects are coded under the three main categories of characteristics, opportunities and challenges. The greatest challenge of osteopathy in Switzerland is the implementation of the new law on health professions, which came into force on 1 Februrary 2020 and has uncertain consequences for osteopaths without a GDK diploma.

Conclusions:
The extensive number of categories shows that the challenges of osteopathy are multi-faceted. However, for some therapists the above mentioned is of existential importance.

Keywords:
switzerland, osteopathy, characteristics, opportunities, challenges, COCO, qualitative study
Color Symbolism in the Castilian Atlantic Bibles: Initials and Scenes from the Bible of Avila (BNM, Vit. 15-1)
Authors: Rodriguez Velasco Maria
Published: January 2021

The Atlantic Bibles of the Umbro-Roman school are associated with the needs of the Gregorian Reform, which began at the end of the 11th century. Their first impression is one of great ornamental sobriety, in accordance with the early stages of what Garrison and Berg have labelled the “geometric style.” This was first manifested in the decoration we find concentrated in the initials heading the individual books of the Bible. In Castile, one outstanding example is the Bible of Avila, begun by the Umbro-Roman school and finished in a Castilian scriptorium. This double perspective can be observed in a similarly double palette of color: Italian and Spanish.

It is especially in this second phase when a reduction to the minimum of polychromy leads us to think that color has here a symbolic use. Red and blue, having had symbolic connotations since the birth of Christian iconography, are the principal colors of the scenes illustrated in the Bible of Avila, with the addition of green and yellow, which are also rich with symbolism. This possible symbolism of color may work to reinforce the conceptual nature of these miniatures, in direct relation to the text they decorate and to the liturgy they accompany. The Bible in the Middle Ages, in the context of monastic schools, was the most important manuscript for teaching and learning. Its miniatures and the symbolism of its colors contribute to the transmission of meanings.
Factores asociados a vivir solo en personas mayores de 60 años en Bogotá, Colombia
Authors: Chavarro-Carvajal Diego A. , Cano-Gutierrez Carlos A. , Carrasquilla Gabriel
Published: January 2021

Objetivo: identificar los factores asociados a vivir solo y la magnitud de su efecto en la población adulta mayor de 60 años que residen en comunidad en la ciudad de Bogotá. Métodos: Estudio de corte transversal con análisis secundario de la encuesta Salud, Bienestar y Envejecimiento (SABE) - Bogotá 2012. Se calcularon medidas de tendencia central, las medias se compararon con la prueba t de Student, el modelo final se ajustó por edad, sexo y se calcularon las odds ratios (OR) y sus IC95% para estimar la fuerza de la asociación. Resultados: De las 2000 personas que participaron en la encuesta SABE, 252 (12,6%) vivían solas. El promedio de edad era de 71,32 años; el 64,68% eran mujeres (n=163). La escolaridad promedio fue de 6,19 años (DE 0,31). Al realizar en análisis bivariado, se encontró asociación estadísticamente significativa entre vivir solo y ser independiente para las actividades básicas e instrumentales de la vida diaria, la ausencia de demencia, tener buena autopercepción del estado de salud. En el modelo de regresión logística no tener pareja (OR 4,91 IC 95% [3,61-6,68]), ausencia de demencia (OR 2,77 IC 95% [1,94-6,16], mala autopercepción del estado nutricional (OR 1,7 IC 95% [1,24-2,33] y el sexo femenino (OR 1,37 IC 95% [1,03-1,91] se asociaron de forma significativa con la posibilidad de vivir solo en personas mayores de 60 años. Conclusiones: Este estudio encontró que vivir solo se asoció con no tener pareja, tener un buen estado cognoscitivo, ser mujer y con mala autopercepción del estado nutricional.
Fabrication of PDMS-based volume Bragg gratings by stitching of femtosecond laser filament
Authors: Homma Kentaro , Watanabe Wataru
Published: January 2021

This work demonstrates the fabrication of poly-(dimethylsiloxane) (PDMS)-based volume Bragg gratings (VBGs) by stitching of femtosecond laser filament. The refractive index change induced by femtosecond laser pulses is low (orders of 10−4 to 10−3) in PDMS. Therefore, the VBG thickness is the key parameter to fabricate high-efficiency VBGs in PDMS. With the intention of increasing diffraction efficiency, this paper presents fabrication of multi-layered PDMS-based VBGs. We produce VBGs with 10 μm line pitch using a femtosecond pulse laser (100 fs pulse width, 1 kHz repetition frequency). The modified zone thickness can be controlled by arranging the relative displacement of filament at different depths and the distances between layers. High-efficiency VBGs were created by depth multiplexing of 350 μm long filamentary modification in PDMS. Diffraction efficiency of 87.2% was realized by forming 0.63 mm grating thickness.
Differential-drive CMOS rectifier with photovoltaic-assist and self-Vth-cancellation schemes for high power conversion efficiency under low input power conditions
Authors: Watanabe Toki , Usami Ren , Komiyama Takao , Chonan Yasunori , Yamaguchi Hiroyuki , Kotani Koji
Published: January 2021

In this study, a differential-drive CMOS RF rectifier equipped with photovoltaic assistance and self-Vth-cancellation (SVC) mechanism has been developed for efficient energy harvesting from ambient radio waves. In addition to the differential-drive dynamic biasing, in which by dynamically biasing the MOSFET gates with differential input signal, both on-resistance and reverse leakage current of the MOSFET are reduced and high power conversion efficiency (PCE) can be achieved, the combination of SVC technology and photovoltaic assist technology allows further improvement of the PCE under low input power conditions. As a result, the PCE of 38.5% was achieved at an input power level of −22 dBm, a frequency of 1 GHz, an output load resistance of 10 kΩ, and a light irradiance of 1 W m−2.
Ionic liquid-loaded metal-organic framework system for nanoionic device applications
Authors: Koh Sang-Gyu , Koide Taiki , Morita Takumi , Kinoshita Kentaro
Published: January 2021

Metal-organic frameworks, which are three-dimensional nanoporous materials composed of metal ions and organic ligands, have recently attracted significant attention as functional materials owing to their structural flexibility in the material design of uniform-size nanopores. In this study, basic investigations of the electrical properties of Cu3(btc)2 (btc; 1,3,5-benzenetricarboxylic acid) were carried out using single crystalline samples. We determined that the pore-filling solvent absorbed by capillary condensation strongly dominated the electrical properties of Cu3(btc)2 single crystals. The extremely dense and highly insulating nanopores of Cu3(btc)2 enabled us to use liquids as solids by absorbing the liquids into the nanopores. By loading an ionic liquid, which is composed of tunable ionic compound (salt) with superior characteristics for electrolyte use, this substance can be used as a “solid electrolyte” for application to solid-state nanoionic devices without compromising its original ion transport property.
Fast acquisition of spin-wave dispersion by compressed sensing
Authors: Kainuma Ryo , Matsumoto Keita , Satoh Takuya
Published: January 2021

For the realization of magnonic devices, spin-wave dispersions need to be identified. Recently, the time-resolved pump-probe imaging method combined with the Fourier transform was demonstrated for obtaining the dispersions in the lower-wavenumber regime. However, the measurement takes a long time when the sampling rate is sufficiently high. Here, we demonstrated the fast acquisition of spin-wave dispersions by using the compressed sensing technique. Further, we quantitatively evaluated the consistency of the results. Our results can be applied to other various pump-probe measurements, such as observations based on the electro-optical effects.
GAMBARAN KECEMASAN PERAWAT DALAM MENANGANI PASIEN HEMODIALISIS DI MASA PANDEMI COVID-19 TAHUN 2020
Authors: Sri Lestari Yustina , Melati Nimsi , Tinambunan Janetta Chien , Daniel Novarini , Sudari Ni Wayan
Published: January 2021

Kecemasan merupakan perasaan tidak tenang  karena ketidaknyamanan atau rasa takut yang disertai suatu respon. Perawat merupakan orang yang berhubungan langsung dengan pasien hemodialisis yang merupakan kelompok rentan di masa pandemi COVID-19. Penelitian bertujuan mengetahui gambaran kecemasan perawat dalam menangani pasien hemodialisis di masa pandemi COVID-19 tahun 2020. Penelitian menggunakan desain deskriptif kuantitatif dengan metode survey secara online. Tehnik pengumpulan data menggunakan kuesioner tinggat kecemasan dari Zung-Self-Rating Anxiety Scale. Pengambilan sampling menggunakan tehnik non probability sampling dengan accidental sampling dengan jumlah responden 62 perawat hemodialisis. Hasil dari penelitian ini menunjukkan bahwa sebagian  besar perawat tidak mengalami kecemasan sejumlah 60 responden (96.8% ), dan 2 (3.2%) responden mengalami kecemasan ringan sampai sedang. Gambaran kecemasan pada perawat hemodialisis dari hasil penelitian menunjukan bahwa perawat hemodialisis mempunyai kemampuan merespon kecemasan dengan baik. Saran: dilakukan penelitian dengan menggunakan metode lain yaitu metode kualitatif dengan menggunakan tenhik wawancara secara mendalam
Multi-Cloud: A Comprehensive Review
Authors: Imran Hamza Ali , Latif Usama , Ikram Ataul Aziz , Ehsan Maryam , Ikram Ahmed Jamal , Khan Waleed Ahmad , Wazir Saad
Published: January 2021

In the span of a decade, innovations in cloud computing have led to a new understanding of computing to be used as a utility. Majority of cloud service providers are making the service better and competitive for end-user. Aside from the number of services introduced by these providers, users are feeling uneasy and are unaware of consequences while switching from one service to another. Internal architecture of the cloud makes it difficult for end-users to understand. To overcome this issue a new concept of multi-cloud has been introduced. In multi-cloud technology, we can use multiple clouds from different vendors without platform complexity. Hence summarized, Multi-cloud is the usage of autonomous cloud platforms with one interface which may clue to different administrative and implementation domains. This paper reviews the literature of recently presented solutions and architectures for multi-cloud platforms.
La Polonia de los coroneles y el México de Cárdenas (1934 -1939)
Authors: Łepkowski Tadeusz
Published: January 2021

Emergence of the Second Polish Republic in 1918 correlates well with the emergence of post-revolution Mexican state. Different aspects of the relationship between these two countries are analyzed. Both immediately established a political relationship and engaged in economical and cultural exchange. A number of Polish citizens emigrated to Mexico. At the end of interwar period Poland turned into an authoritarian regime related to the "Sanacja" movement ("Colonels' Poland"), while Mexico was governed by General Cardenas. The portrayals of Mexico in Polish press were focused on social issues and anti-clericalism of Cardenas, while Mexican press discussed Poland in relation to international politics.
PROCESSOS AFETIVOS E DESENVOLVIMENTO HUMANO
Authors: SILVA FERNANDO DE ALMEIDA
Published: January 2021

: O artigo tem como objetivo discutir de forma interdisciplinar as contribuições da Teoria Psicogenética para o desenvolvimento infantil, ressaltando a importância do complexo afetivo em todo o processo de desenvolvimento humano. Assim, pois, estabelecemos como itinerário metodológico (método) uma revisão narrativa literatura das abordagens de Jean William Fritz Piaget (1896-1980), Lev Semyonovitch Vygotsky (1896-1934) e do francês Henri Paul Hyacinthe Wallon (1879-1962) a partir da relação e interação entre sujeito e objeto num processo de construção e reconstrução das estruturas cognitivas e afetivas. Trata-se, portanto, de uma pesquisa qualitativa que discorre sobre o universo de significados que constitui a tessitura conceitual dos complexos afetivos e cognitivos na Teoria Psicogenética do Desenvolvimento Humano. Os resultados da pesquisa indicam uma compreensão de ser humano que conjuga em uma mesma pessoa natureza e cultura, valorizando a relação dos indivíduos com o seu meio social.
Petroleum Well Blowouts as a Threat to Drilling Operation and Wellbore Sustainability: Causes, Prevention, Safety and Emergency Response
Authors:   Young Researchers and Elite Club, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran, Ghorbani Hamzeh , Abdali Mohammad Reza ,   Department of engineering, Najafabad branch, Islamic Azad University, Najafabad, Iran, Mohamadian Nima ,   Young Researchers and Elite Club, Omidiyeh Branch, Islamic Azad University, Omidiyeh, Iran, Wood David A. ,   DWA Energy Limited, Lincoln, United Kingdom
Published: January 2021

Sustainability in petroleum wells drilling operation systems strongly depends on the use of sustainable materials and a set of technical and safety measures that lead to the survival and proper operation of drilling rig equipment's and personnel. Adherence to the highest levels of standards of tools, materials and methods, although always recommended as the most important option for advancing a safe drilling operation and completing the well efficiently, low risk and stable, but drilling operation is inherently a battle with underground challenges and unexpected dangers. Learning from past such well blowout events and the problems they pose to rapidly control is essential to reduce future impacts including injuries, damage and emissions. Such analysis offers guidance for adapting working practices to improve both prevention and emergency response to such incidents. The causes of blowout during drilling and the necessary technical and safety measures to adopt are reviewed, highlighting how best practices can prevent blowout incidents by improving responses to early warning signals. The particular risks associated with potential shallow gas blowouts are identified and described with the aid of a case study associated with a catastrophic blowout of an onshore well in Iran and the methods used to ultimately control it. The multiple causes of the incident relating to defects in safety systems, equipment and operating procedures are addressed. Lessons learned from the incident reveal the complexity of well control once a blowout incident has occurred and developed into a surface fire. from the stage of the incident to fire control. There is a need for further research into top-hole well kill techniques for wells in a blowout state, as drilling bottom-hole relief wells takes substantial time, during which much surface damage, resource loss and emission typically occurs.
THE CONTACT ANGLE CONTROL OF THE SOLDER FOR IMPROVING THE SOLDERING QUALITY
Authors: Чуйко М.М.  , Завальський В.
Published: January 2021

High quality of the soldering process can be achieved with the right choice of the necessary soldering materials. Since wetting determines the further nature of the connection between the solder and the main soldering material, the contact angle  measurement  is the basis for quality control of soldering materials, provided that the basic requirements of the technological process. The determination of the contact angle value is carried out by the indirect method of the sessile drop, by measuring the basic parameters of the drop using infrared transducer. A smaller value of the contact angle corresponds to a better interaction of materials, and hence a better electrical contact
МАТЕМАТИЧНЕ МОДЕЛЮВАННЯ ОЦІНЮВАННЯ ЗНОШУВАННЯ ПІДШИПНИКІВ КОЧЕННЯ
Authors: Шматко Д.З.  , Авер’янов В.С.  , Сасов О.О.  , Чернета О.Г.
Published: January 2021

В даній роботі розглядається метод шумо-акустичного неруйнівного контролю при проведенні діагностування підшипників кочення маточин коліс автомобілів. Запропонований неруйнівний метод контролю надає можливість перевірити ефективність обраного мастила, тим самим підвищити ресурс і працездатність підшипників.Створена лабораторна установка для діагностування підшипників кочення, яка дозволяє отримати їх акустичні параметри в залежності від навантаження підшипникового вузла, часу напрацювання і застосування різних видів мастильних матеріалів у підшипниках. Розроблена авторами математична модель спрямована на визначення ступеню зношування підшипників коченнята дозволяє прогнозувати їх можливий ресурс роботи на підставі отриманих шумо-акустичних параметрів.
Knowledge, Attitude and Practice Regarding Kangaroo Mother Care among Postnatal Mothers attending at a Tertiary Level Hospital of Kathmandu
Authors: Ghale Nilam , Mehta Neesha
Published: January 2021

Introduction: Prematurity is the leading cause of death in under 5 children due to lack of feasible, affordable and effective low-cost care to prevent complications like hypothermia at early stage of life. Kangaroo Mother Care (KMC) is proven useful technique to reduce such complications. It is extremely necessary to have knowledge and good practice regarding KMC among postnatal mothers.

Methods: Descriptive cross-sectional study was conducted at TUTH, Maharajgunj Kathmandu. The study sample was selected by using nonprobality complete enumerative sampling method, and semi structured tool was used to assemble the data. Data were analyzed using SPSS version 26. Descriptive analyses were performed and Chi-square analyses were used to find out the association of independent variables.

Results: Among 76 postnatal mothers mean age was 28.8±5.9 years, 32.80% had excellent knowledge, 97.4% had positive attitude and 61.80% had good practice regarding KMC. The study showed significant association between knowledge and information variable (p=0.000), practice is also associated with information variable and education with p=0.000 and p=0.011 respectively.

Conclusions: Nearly half (44.70%) of the postnatal mothers had poor knowledge but more than half (55.20%) had good practice toward KMC and almost all (97.40%) had positive attitude towards KMC.
Cardiac Abnormalities in People Living with HIV visiting ART Center of a Tertiary Hospital in Kaski, Nepal: A CrossSectional Study
Authors: Adhikaree Ajay , Bdr Hamal Thakur Surya , Kumal Kamal , Tripathee Ashish
Published: January 2021

Introduction: Anti-Retroviral Therapy (ART) by virtue of immune boost up has increased life span of People Living with Human Immunodeficiency Virus infection (PLHIV) and thus they are prone for late cardiovascular manifestations of infection. Age related atherosclerotic cardiovascular risks also accumulate on them. Therefore, this study aimed to assess cardiac abnormalities in those PLHIV taking ART.

Methods: It was a single center descriptive cross-sectional study conducted on those ART taking PLHIV who underwent extensive cardiac evaluation by a meticulous clinical examination and investigation with Chest X-Ray (CXR), Electrocardiogram (ECG) and echocardiography. Excluded were those with past history of heart disease, cardiac surgery and chronic systemic disease before the diagnosis of PLHIV and pregnant women.

Results: There were total of 381 PLHIV. There was male predominance (54.33%) with mean age of 44.7 years and average duration of ART was 7.8 years. Hypertension (18.9%) was the predominant co-morbid factor. Cardiovascular abnormalities detected by CXR, ECG and echocardiography were 39.3%, 64.6% and 48.8% respectively.

Conclusions: Cardiac abnormalities are common in ART taking PLHIV; hence comprehensive cardiovascular evaluation is need of the hour.
Denture hygiene habit and denture care practice in complete denture wearing patients visiting a dental college
Authors: Khanal Bibek , Mishra Sapkota Srijana , Narayan Thakur Smriti , Chaulagain Rajib
Published: January 2021

Introduction: After wearing a complete denture, the patient most care for his/her denture and most maintain a good hygiene habit for long term use of the prosthesis. Even after giving denture care instructions at the denture delivery appointment many patients may not fully understand the instructions. This study was performed to assess the denture hygiene habit and denture care procedure being undertaken by complete denture patients coming for treatment in a private dental college.

Methods: A descriptive cross-sectional study was conducted among 140 complete denture wearing patients visiting Department of Prosthodontics, Chitwan Medical College from Sep 2021 to Mar 2022. A questionnaire was prepared and used to collect data which included various questions regarding denture hygiene and denture care being undertaken by patients. Descriptive statistical analysis (frequency and percentage) was performed on the data collected by using SPSS Statistical Software Package (version 21.0).

Results : A total of 140 responses were included in this study. Out of the patients who responded 52.85% (N=74) were wearing the same denture for less than 5 yrs while 27.85% (N=39) were wearing the denture for more than 5 yrs. Most of them i.e., 73.5% were removing the prosthesis at night time and 61.4% were keeping the denture inside water when removing at night. Out of the participants, 81.42% were cleaning the prosthesis outside of mouth while 18.5% were cleaning the denture both inside and outside of the mouth. All of them were using a toothbrush to clean the denture. More than half (52.14%) of the participants didn’t know for how long they should use complete denture.

Conclusion: From the responses obtained in this study it can be concluded that the complete denture wearing patients visiting Chitwan Medical College have fair denture hygiene habits as well as fair knowledge on denture care practice.
Measurement of Diameter of Spinal Canal in Nepalese Population
Authors: Gautam Ajeevan , Chaulagain Rajib , Majagaiyan Pokhrel Prabhav , Shrestha Amit , Anwer Khan Gulam , Shakya Suvekshya
Published: January 2021

Introduction: A typical vertebra has a ventral body, vertebral arch, and a vertebral foramen, where the spinal cord, meninges, and related vessels occupy. Depending on the position and amount of narrowing that occurs over time, a spinal nerve or the spinal cord may get compressed, causing pain, tingling, numbness, and/or weakness. This study was aimed at to access the anteroposterior and transverse diameter of the spinal canal.

Methods: All together 75 dried human vertebrae were gathered from Chitwan Medical College’s Department of Anatomy. Gender and ethnicity were unidentified. All damaged vertebras were excluded from the study. The diameters of the anteroposterior and transverse axes were measured. Photographs were taken, and the results were analyzed. The statistical study was carried out using Microsoft Excel 2019 and the results were assessed in terms of frequency and distribution.

Results: Among 75 dry vertebras were studied, the anterioposterior and transverse diameter of the cervical vertebra was between 9.77mm to 14.16mm and 16.35mm to 24.63mm respectively. In thoracic region, the anterioposterior diameter was between 11.82 mm to 15.53 mm and the transverse diameter ranged between 13.61mm to 18.96 mm. In lumbar region, the anterioposterior and transverse diameter was between 11.82 mm to 15.53mm and 13.61mm to 18.96 mm respectively.

Conclusions: We believe spinal canal has different anterioposterior and transverse diameter at cervical, thoracic and lumbar region. The findings may be help.
Pattern of skin diseases in mid-western region of Nepal
Authors: Bhakta Shakya Nabin , Mani Jha Sagar , Kumar Singh Dangol Anil , Shakya Sunil , Suwal Bhabendra , Singh Saroj
Published: January 2021

Introduction: There are various types of skin lesions that might present to the dermatologist. Most dermatologists are aware of such disease in ages. The occurrence of skin diseases in any community depends upon various factors. This retrospective study, likely reflects the pattern of skin disease in the Mid-Western Region of Nepal due to the only skin clinic in whole Surkhet valley.

Methods: All the newly diagnosed cases attending the OPD during the period. The skin diseases were grouped into infective and non-infective diseases. Diagnosis was made on clinical grounds and laboratory method if required.

Results: The total numbers of cases recorded were 2151. Tinea infection emerged as the commonest disease as 13.25% followed by eczema (12.32 %). Urticaria (9.72%), acne vulgaris (9.21 %), seborrhic dermatitis (5.11 %) and alopecia areata (4.74 %) were the commonest diseases among non-infective skin disease. Among viral infections warts (5.90 %) and chicken pox (3.25 %) were commonest followed by Herpes simplex (2.42 %) and Herpes zoster (1.02 %).

Conclusions: Tinea infection, eczema and urticarial disorders were the most common pattern of dermatological condition found. The pattern found in our study was in similar to that found in various other studies.
Effect of Collaborative Murder Learning Model on Cognitive Ability and Learning Motivation
Authors: Ratnasari Jujun
Published: January 2021

Research with this quasi-experimental method aims to determine the influence of collaborative learning models of Mood, Understand, Recall, Detect, Elaborate, and Review (MURDER) on the cognitive abilities and motivational learning of learners. The instrument used to measure the cognitive abilities   in the form of written tests refers to the Bloom's taxonomy, while the instrument for measuring learning motivation are motivation  questionnaires. Learning cognitive ability data in the form of increase in Pretest and Posttest i.e. the normalization Gain (N-Gain) tested statistically using Wilcoxon test. Wilcoxon test results at a significance level α = 0.05 with 95% confidence level indicates calculated W of 0, while the table W (0.05) (30) amounted to 137. It can be concluded that Ho is rejected meaning that the cognitive abilities in the experiment class and the control class differ significantly.  Analysis of learning motivation data was taken from a questionnaire with a Likert scale 1-4. The results of the t test calculation at the significance level α = 0.05 95% confidence level showed calculated t of 0.75, and table t (0.975) (59) of 2,001. Because the t 0.975 (59) < t < t 0.975 (59), it can be concluded that Ho is accepted meaning there is no significant difference in  students' learning motivation in the experimental class and the control class. In this study the MURDER collaborative learning model has an effect on cognitive ability, but does not affect learning motivation of students.
High level of medication regimen complexity index correlate with worse quality of life in people living with HIV
Authors: Contreras-Macías Enrique , Gutiérrez-Pizarraya Antonio , Robustillo-Cortés María Aguas , Morillo-Verdugo Ramón ,   UGC Farmacia, Hospital Universitario Virgen de Valme, Sevilla, Spain.
Published: January 2021

Objectives. People living with HIV (PLWHIV) have now a near-normal life expectancy and thus, a higher risk of polypharmacy. The main objective was to assess the correlation between medication regimen complexity index (MRCI) and quality of life (EQ-5D) and health utilities among PLWHIV patients on ART. Patients and methods. Observational prospective single-center study including adult PLWHIV on ART from January to March-2020 attended at hospital pharmacy outpatient service according to a Capacity-Motivation-Opportunity (CMO) pharmaceutical care model. Results. A total of 428 patients were included, mean age of 50 ± 10.9 years, 82.2% males. Negative correlation (r2=−0.147; p= 0.0002) between MRCI and EQ-5D was found. Relationship between the comorbidity pattern and quality of life, was also observed. Regarding MRCI, Anxiety/Depression, Pain/discomfort and Self-Care were the dimensions with the worst assessment. Conclusions. A new multidimensional revised care plan for PLWHIV focussed on optimising overall patient care, not limited to viral load goal achievement alone but also in their pharmacotherapeutic complexity and quality of life is needed.
Evaluation of the Performance for Popular Three Classifiers on Spam Email without using FS methods
Authors: AL-Rawashdeh Ghada , Mamat Rabiei Bin , Rawashdeh Jawad Hammad
Published: January 2021

Email is one of the most economical and fast communication means in recent years; however, there has been a high increase in the rate of spam emails in recent times due to the increased number of email users. Emails are mainly classified into spam and non-spam categories using data mining classification techniques. This paper provides a description and comparative for the evaluation of effective classifiers using three algorithms - namely k-nearest neighbor, Naive Bayesian, and support vector machine. Seven spam email datasets were used to conducted experiment in the MATLAB environment without using any feature selection method. The simulation results showed SVM classifier to achieve a better classification accuracy compared to the K-NN and NB.
Evaluating Growth Charts Use among Children Less Than Five Years of Age at Primary Health Care Centers in Al-Hillah City
Authors: Muna Abdulwahab Khaleel
Published: January 2021

The study was conducted at two primary health care centers in Al Hilla city which covered Al Gameyahprimary health care center and Al Kawthar primary health care center for the purpose of evaluating the useof growth chart and to determine mothers understanding toward the meaning of the weight chart in terms ofgrowth. All registered children aged 0-5 years who were living in areas served by the above two mentionedprimary health centers were included. The following results may be drawn on the objectives of the study.The proportion of registered children who possessed a chart was very high (99.8%). The proportion ofregistered children who acquired a chart at birth was high too (99.6%). It is of interest to find that the dateof birth of (99.6%) of children was registered and the weight at birth of (99.2%) of them was known too. Itwas found that only (90%) of study population had their weight charted on the curve of growth charts. Thestudy showed that no children of both sexes were attending regularly to have their weight charted in mostmonths of the year. The study generally depicted that the level of immunization of the children in study areawas remarkable and high.
Quality of Life of Patients with Ischemic Stroke Versus Hemorrhagic Stroke: Comparative Study
Authors: Diaa K. Abd Ali
Published: January 2021

Quality of life (QOL) is an important aspect of a complete outcomes evaluation, to document the effects ofrehabilitation for persons with disabilities, including those with stroke. A Comparative Descriptive Studyis carried out in Al-Najaf City/Al-Najaf Al-Ashraf Health Directorate/Al-Forat Center for NeurologicalSciences, from Nov. 6th, 2013, to April, 10th, in order to assess the quality of life for ischemic versushemorrhagic stroke.A non-probability (Quota sample) of 200 patients (100 ischemic stroke patients, and100 hemorrhagic stroke patients). The data are collected using semi-constructed questionnaire, whichconsists of three parts (1) Patients’ Demographic data. (2) Patients’ clinical data. (3) Patients’ quality of life(WHOQOL). Validity of the questionnaire is determined through a five experts, who have more than 10 yearsof experience in nursing field. The data described statistically and analyzed through use of the descriptiveand inferential statistical analysis procedures. The findings of the present study indicate that the ischemicstroke patients responses were failure at all the studied domains, except at the level of independency andenvironmental domain their responses were pass. While the hemorrhagic stroke patients responses werefailure at all the studied domains. The study concludes that the ischemic stroke affect all the quality oflife domains except the level of independence and environmental domains. While the hemorrhagic strokeaffect all the quality of life domains without exceptions. While the study recommends that further studiesconducted to involve a large sample size may be at a national level to obviously determine the quality of lifefor patients with ischemic versus hemorrhagic stroke.
Prevalence of Intestinal Parasites among Children in Khanaqin City East of Diyala/Iraq
Authors: Noora Dhyaaldain Abed
Published: January 2021

The current study was carried out during the period between November/2018 and March/2019. The studywas aiming to investigate the types and proportions of intestinal parasites among children who visited theprimary health care center in the city of Khanaqin - Diyala governorate. The total number of specimensexamined, during the course of study, was 805 stool specimens. These specimens were taken from childrenin the age range 1-10 years, and direct smear was the method used for the investigation of the intestinalparasites existence. The results showed that 156 children were infected with intestinal parasitic infections.These infections were categorized as four types of Protozoa and one type of intestinal Helminthes. Theincidence ratio of intestinal parasitic infection was 19.373%, where the percentages of parasites consideredin the current study have found to be 62.179% for the Entamoebahistolytica followed by 12.820% for theGiardia lamblia, 12.820 of Entamoebacoli, and 3.205% for the Iodomoebabutschillii. Moreover, the studyhas reported one type of Helminthes represented by the Entrobiusvermicularis with occurrence ratio of6.410%.