bluuebunny/crossref_metadata_2025 huggingface dataset:
Implementasi Model Pembelajaran Sentra Main Peran untuk Mengembangkan Motorik Halus AUD
Authors: Pratiwi Dian Asri , Rahmah Lailatu
Published: February 2021

Penelitian ini bertujuan untuk mengetahui pelaksanaan, dampak serta faktor pendukung dan penghambat dalam implementasi model pembelajaran sentra main peran untuk mengembangkan motorik halus anak kelompok A1 TK Islam Plus Mutiara Banguntapan.

Penelitian ini merupakan jenis penelitian kualitatif yang bersifat deskriptif. Teknik pengumpulan data dilakukan dengan wawancara, observasi, dan dokumentasi. Teknik analisis data yang digunakan adalah reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan implementasi model pembelajaran sentra main peran untuk mengembangkan motorik halus anak kelompok A1 TK Islam Plus Mutiara Banguntapan dimulai dari perencanaan pembelajaran, pelaksanaan pembelajaran dan evaluasi pelaksanaan pembelajaran. Dampaknya yaitu berdampak baik pada perkembangan motorik halus anak dengan melihat tercapainya indikator yang diterapkan di TK Islam Plus Mutiara berdasarkan STPPA yang mengacu pada kurikulum 2013. Faktor pendukungnya yaitu SDM di TK Islam Plus Mutiara sudah cukup bagus, APE cukup memadai, dan peserta didik sudah mengerti apa yang diajarkan oleh guru. Sedangkan faktor penghambatnya yaitu sarana dan prasarana masih kurang baik.
Penerapan Metode Gerakan untuk Menghafal Hadis pada Anak
Authors: Malikhah Fatikhatul , Rohinah Rohinah
Published: February 2021

Penelitian ini merupakan penelitian yang bersifat kualitatif, dengan mengambil latar penerapan metode gerakan untuk menghafal hadiś di RA Tiara Chandra Yogyakarta dengan fokus pada kegiatan menghafal hadiś pada anak kelompok B. Pengumpulan data dilakukan dengan observasi, wawancara, dan dokumentasi. Penelitian ini dilatar belakangi oleh kegiatan menghafal hadiś yang sering dilakukan oleh sekolah maupun guru menggunakan metode ceramah dan menugaskan siswa untuk menghafal Ḥadiś. Sehingga anak terlihat pasif dan suasana belajar menjadi tidak kondusif. Saat apersepsi pada pelajaran berikutnya anak sudah banyak yang lupa, hanya beberapa anak yang masih mampu mengingat Ḥadiś yang sudah dipelajari. Hasil penelitian menunjukkan bahwa : Penerapan metode gerakan untuk menghafal Ḥadiś pada anak kelompok B di RA Tiara Chandra Yogyakarta tidak terlepas dari RPPH. Kedua, pelaksanaan kegiatan menghafal Ḥadiś pada awalnya dilakukan dirumah tanpa gerakan dan dilakukan disekolah dengan gerakan simbol tangan dengan kegiatan  klasikal, ketiga evaluasi kegiatan menghafal Ḥadiś yang berupa tingkat pencapaian dan tindak lanjut yang akan dilaporkan kepada orangtua saat pertemuan dua akhir tema. Faktor pendukung dalam penerapan metode gerakan untuk menghafal Ḥadiś pada kelompok B RA Tiara Chandra antara lain : handout untuk orangtua, minat anak, rasa percaya diri, susasana kelas yang kondusif, dan buku pedoman metode gerakan untuk menghafal Ḥadiś. Faktor penghambat dalam kegiatan menghafal Ḥadiś dengan metode gerakan yaitu : gaya belajar anak, daya ingat anak, kemampuan guru dan belum adanya pelatihan kepada orangtua mengenai metode gerakan untuk menghafal Ḥadiś, gambar tidak full collor, dan Ḥadiś tidak dilengkapi dengan asbabul wurud.
Meningkatan Kreativitas Melalui Kegiatan Kolase pada Anak
Authors: Khasanah Yuli Nur , Ichsan Ichsan
Published: February 2021

Penelitian ini bertujuan untuk: (1) mengetahui seberapa besar kreativitas anak sebelum diadakannya kolase, (2) mengetahui bagaimana pelaksanaan kegiatan kolase, (3) mengetahui seberapa besar perubahan kreativitas anak setelah diadakannya kegiatan kolase. Penelitian ini merupakan penelitian tindakan kelas kolaboratif menggunakan model kemmis dan Mc Taggart. Subyek penelitian ini adalah anak kelompok B yang berjumlah 14 anak yang terdiri dari 6 anak perempuan dan 8 anak laki-laki. Obyek yang diteliti adalah kreativitas anak. pengumpulan data dilakukan melalui observasi, wawancara dan dokumentasi. Teknik analisis data yang digunakan yaitu dengan menghitung persentase hasil kreativitas anak mulai dari pratindakan, siklus I dan siklus II lalu mendeskripsikan dalam bentuk narasi.  Hasil penelitian menunjukkan bahwa kreativitas anak mengalami peningkatan seteah diberikan tindakan melalui kegiatan kolase menggunakan bahan kertas, bahan alam, dan warna yang cocok, bebas menggunting, menyobek, memotong dan menggulung bahan sesuai dengan kebutuhan anak. peningkatan tersebut dapat dilihat dari kondisi awal kreativitas anak kelompok B sebesar 35,71%, kemudian pada siklus I meningkat menjadi 57,14%, dengan menggunakan bahan kertas dan bahan alam, dan meningkat pada siklus II menjadi 78,57% dengan ditambah bahan menggunakan bahan kertas, bahan alam dan bahan buatan. Hasil penelitian menunjukkan bahwa kegiatan kolase dapat meningkatkan kreativitas anak kelompok B di RA Al-Iman Sleman.
Delineating Supply Chain Management (SCM) Features in Construction Project Delivery: The Nigerian Case
Authors:   Federal University of Technology, Owerri, Nigeria, Amade Benedict , Akpan Peter Okon Edem ,   Akwa Ibom State University, Ikot Akpaden, Nigeria, Amaeshi Francis Uzoma ,   Federal University of Technology, Owerri, Nigeria, Okorocha Kevin Aku ,   Federal University of Technology, Owerri, Nigeria, Ogbonna Chibueze Achimba ,   Babcock University, Ilishan Remo, Nigeria.
Published: February 2021

This study sought to delineate SCM features using the analytical hierarchy process (AHP) with a view to incorporating it into the delivery of construction projects in Nigeria. The study adopted an exploratory research design (quantitative and qualitative) methods. A purposive and convenient sampling technique was deployed with the aid of semi-structured interview, case study; questionnaire survey in a construction firm in Port-Harcourt, Rivers State, Nigeria. Questionnaires were used to collect primary data after being pre-tested via a pilot study for validity and reliability. The data collected were analysed using the AHP. Findings from the study shows that the following features are key; Instituting trust and long term relationships amongst supply chain partners (ITP), supply chain finance (SCF), supply chain and continuous performance measurement (SCCPM), information technology (IT), quality management (QM), supply base management (SBM), senior management’s commitment (SMC) and supply chain orientation (SCO). In delivering construction projects to success using the SCM approach, adequate attention and emphasis should be accorded to the aforementioned important features in the order they appear as they would aid in effecting the much needed success. It is also expected that the features would further be beneficial to construction firms as it would enable the firms to manage, measure and evaluate the gains ensuing from the deployment of SCM techniques.
Gastronomie et œnologie, un ancrage dans le sensible et le sensoriel
Authors: Catellani Andrea , Verdier Benoît , Parizot Anne
Published: February 2021

Ce texte apporte une conclusion au numéro en remettant en perspective les différentes contributions. L’objectif des articles ici présentés est celui d’interroger la gastronomie et l’œnologie comme faits sociaux, par le prisme du discours communicationnel élaboré par et autour de terminologies professionnelles utilisées et partagées, d’une part, dans des dispositifs très divers (manga, architecture, littérature, scénographie...) et d’autre part, par des acteurs très diversifiés (professionnels comme profanes).
Educational Robotics: Building and Applying an App-controlled Car to Study Newton’s Laws
Authors: Matos Maicon Teixeira , Zannin Marcelo
Published: February 2021

The use of technology – including mobile phones – in classrooms is a growing and promising trend, but it still needs research on ways to integrate it in classrooms and on its impacts. We propose a low cost educational product where students assemble an Arduino car remotely controlled through a mobile app and use it to study Newton’s third law, of action-reaction forces. The teacher used an inquiry-based approach to prompt students to test towing capacity of the car. Students connected the car to different weights and used a structure of pulleys to investigate the behaviour of fixed and movable pulleys, as well as the forces involved. The goal of the activity is to motivate students to study physics and to facilitate learning. This article describes a pilot implementation of the educational product in a secondary school of Brazil. We used a qualitative approach to evaluate the implementation. Students answered a survey before and after the activities. They also delivered a report and answered questions about the physics involved. The teacher recorded his observations. The product and the strategy showed great potential: these students were more motivated and engaged in the classes and were able to learn the main concepts involved.
Plasma Nitrocarburizing of AISI 316L Austenitic Stainless Steel: a First Step for Treatment of Components with Complex Geometries
Authors: Jafarpour Saeed , Dalke Anke , Biermann Horst
Published: February 2021

The surfaces of AISI 316L austenitic stainless steel components with complex shapes and geometries can be subjected to extreme loads with intensive wear stress resulting a short lifetime. Low temperature active screen plasma nitrocarburizing (ASPNC) can be applied to form a thin duplex layer known as expanded austenite, improving the hardness and wear resistance with acceptable corrosion resistance. However, ASPNC of shaped components and components with different aspect ratios may yield non-uniform expanded austenite layer and/or reproducibility problems limiting their applications for specific cases. In this study, first, ASPNC of AISI 316L treated at different temperatures was investigated using active screen made of carbon-fibre reinforced carbon (CFC) to determine a reliable treatment temperature without CrN precipitation. In addition, several non-uniformity effects related to geometry and shape of structured samples were investigated during ASPNC treatment at different biased conditions. It was shown that in case of structured samples, a weak bias power at the samples was an essential process parameter to guarantee the formation of thick and homogenous expanded austenite layer while in non-biased conditions, thin and inhomogeneous expanded austenite is formed.
Glatiramer acetate treatment inhibits inflammatory responses and improves survival in a mice model of cecal ligation and puncture-induced sepsis
Authors: Maleki Elahe , Sheibani Mohammad , Nezamoleslami Sadaf , Dehpour Ahmad Reza , Takzaree Nasrin , Shafaroodi Hamed
Published: February 2021

Objectives

Sepsis is a clinical crisis which has been considered as one of the important causes of mortality across the world. We hypothesized that modulation of hyper-inflammatory phase of sepsis pathophysiology can lead to protective effects on survival outcome. Glatiramer acetate (GA) is a neuroprotective drug commonly used in multiple sclerosis (MS). GA is characterized by immunom activity via regulation of innate and adaptive immunity. This study was designed to evaluate the acute treatment with GA on initial inflammatory response-induced mortality in septic mice.

Methods

Cecal ligation and puncture (CLP) model was operated on male mice as a model of Polymicrobial sepsis. GA was administrated intraperitoneally after the sepsis induction at doses of 0.5, 1, and 2 mg/kg in three treatment groups. To investigate the effect of GA on short-term survival, septic mice were observed during 72 h after CLP. Serum levels of TNF-α, IL-1β, and IL-6 as pro-inflammatory cytokines and also IL-10 as a critical anti-inflammatory cytokine were analysed. To consider sepsis-induced acute kidney injury, renal functional biomarkers and histopathological changes was assessed.

Results

GA treatment significantly improved survival rate at doses of 1, and 2 mg/kg. Survival improvement was accompanied by remarkable reduction in the pro-inflammatory cytokines and enhanced production of IL-10. GA showed to have protective effects on renal function as well.

Conclusions

Immunomodulatory and anti-inflammatory properties of GA resulted in increase in survival rate and decrease in inflammatory markers in mice model of cecal ligation and puncture–induced sepsis.
Boundary value problems of Hilfer-type fractional integro-differential equations and inclusions with nonlocal integro-multipoint boundary conditions
Authors: Nuchpong Cholticha , Ntouyas Sotiris K. , Tariboon Jessada
Published: February 2021

In this paper, we study boundary value problems of fractional integro-differential equations and inclusions involving Hilfer fractional derivative. Existence and uniqueness results are obtained by using the classical fixed point theorems of Banach, Krasnosel’skiĭ, and Leray-Schauder in the single-valued case, while Martelli’s fixed point theorem, nonlinear alternative for multi-valued maps, and Covitz-Nadler fixed point theorem are used in the inclusion case. Examples illustrating the obtained results are also presented.
On the Gevrey ultradifferentiability of weak solutions of an abstract evolution equation with a scalar type spectral operator on the real axis
Authors: Markin Marat V.
Published: February 2021

Given the abstract evolution equation

y
′

(
t
)
=
A
y
(
t
)
,
t
∈
ℝ
,

y^{\prime} (t)=Ay(t),t\in {\mathbb{R}},

with a scalar type spectral operator A in a complex Banach space, we find conditions on A, formulated exclusively in terms of the location of its spectrum in the complex plane, necessary and sufficient for all weak solutions of the equation, which a priori need not be strongly differentiable, to be strongly Gevrey ultradifferentiable of order

β
≥
1

\beta \ge 1

, in particular analytic or entire, on

ℝ

{\mathbb{R}}

. We also reveal certain inherent smoothness improvement effects and show that if all weak solutions of the equation are Gevrey ultradifferentiable of orders less than one, then the operator A is necessarily bounded. The important particular case of the equation with a normal operator A in a complex Hilbert space follows immediately.
Effect of an ethanolic extract from Enterolobium cyclocarpum pods on feed intake, egg production, and plasma lipid profile of laying hens
Authors: Santos Ricalde Ronald Herve , Lopez Lopez Paloma , Sarmiento Franco Luis , Sandoval Castro Carlos , Segura Correa Jose , Borges Argaez Rocio , Caceres Farfan Mirbella , Cetina Montejo Lisseth
Published: February 2021

There is concern about egg cholesterol content. In this study, the effect of an ethanolic extract from Enterolobium cyclocarpum (EEEC) pods in laying hen diets on egg production and plasma lipid profile was investigated. EEEC was added in 0 mg/kg, 60 mg/kg, 120 mg/kg, 240 mg/kg, and 480 mg/kg to the diets. Feed intake was lower in laying hens fed diets with 480 mg/kg of EEEC (p < 0.05). Albumen was less heavy and wide in laying hens fed diets with EEEC, in comparison to those in the control diet (p < 0.05). No significant effect of EEEC on cholesterol in plasma was observed (p < 0.08); however, a significant increase of high-density lipids (HDL) in proportion of total cholesterol was observed in hens supplemented with 120 mg/kg of EEEC (p < 0.05). In conclusion, EEEC reduced albumen weight and wide in eggs, and 120 mg/kg of EEEC in the diet increased HDL in proportion to total cholesterol in blood.
How to Interpret Resting-State fMRI: Ask Your Participants
Authors: Gonzalez-Castillo Javier , Kam Julia W.Y. , Hoy Colin W. , Bandettini Peter A.
Published: February 2021

Resting-state fMRI (rsfMRI) reveals brain dynamics in a task-unconstrained environment as subjects let their minds wander freely. Consequently, resting subjects navigate a rich space of cognitive and perceptual states (i.e., ongoing experience). How this ongoing experience shapes rsfMRI summary metrics (e.g., functional connectivity) is unknown, yet likely to contribute uniquely to within- and between-subject differences. Here we argue that understanding the role of ongoing experience in rsfMRI requires access to standardized, temporally resolved, scientifically validated first-person descriptions of those experiences. We suggest best practices for obtaining those descriptions via introspective methods appropriately adapted for use in fMRI research. We conclude with a set of guidelines for fusing these two data types to answer pressing questions about the etiology of rsfMRI.
An Investigation of Plant-based Dietary Motives Among Vegetarians and Omnivores
Authors: Hopwood Christopher J. , Rosenfeld Daniel , Chen Sophia , Bleidorn Wiebke
Published: February 2021

The three most common motives for plant-based diets in western populations are health, the environment, and animal rights. This study compares the structure, endorsement rates, and personality correlates of these motives among vegetarian and omnivorous (i.e., non-vegetarian) respondents. We found evidence for configural, metric, and scalar equivalence in the measurement of these motives across vegetarians and omnivores, suggesting that vegetarian diet motives function similarly whether or not the respondent identifies as vegetarian. Vegetarians, notably, reported being more motivated by the environment and animal rights than omnivores; health motivations were similarly high across groups. Several significant effects emerged linking vegetarian motives to personality traits, with patterns of correlations between motives and traits being highly similar across vegetarians and omnivores. Overall, these findings suggest that vegetarian eating motives are similar in terms of structure and personality correlates, but differ in endorsement rates, between vegetarian and omnivorous individuals.
The Black Death in the Maghreb
Authors: Singer Rachel
Published: February 2021

The Black Death in the Maghreb is severely understudied. There is little scholarship on the Maghrebi experience of the second pandemic in general. That which exists bases its conclusions on Al-Andalusi and Middle Eastern sources and does not incorporate the paleoscientific data which has shed light on plague outbreaks for which there is less traditional evidence. As a result, little is known about the Maghrebi Black Death, and this ignorance is detrimental to our understanding of the Black Death in adjacent regions, especially Sub-Saharan Africa. This paper surveys the existing scholarship on plague in fourteenth-century North Africa and argues that the field both needs and deserves further attention. It then suggests directions for further study grounded in an interdisciplinary approach incorporating paleoscience, plague ecology, archaeology, and a reexamination of Maghrebi primary texts.
Pogranicze normy skodyfikowanej
Authors: Berlińska Anna
Published: February 2021

The article analyses a few examples of innovations, widespread in spoken and written texts and largely accepted by average educated users of Polish language (especially, though not only, by the younger ones), but not yet fully and/or unanimously recognized as correct in normative dictionaries and critical works of normative linguists. The author focuses on two phonetical phenomena: denasalization of the vowel ą [o] at the end of a word, replaced by the diphthong [ou]; generalization of the accentuation of the last but one syllable in those words which were traditionally exceptions to the rule. Then two derivational models are looked into: feminine nouns derived with suffix -ka from masculine profession names en ding in -log (psycholog > psycholożka etc.); „statistical" nouns formed with the suffix -(aln)ość (oglądalność, słuchalność). More of the „almost standard" phenomena will be analysed in another article.
Imię Piotr jako komponent związków frazeologicznych w ujęciu konfrontatywnym (na materiale wybranych języków europejskich)
Authors: Szerszunowicz Joanna
Published: February 2021

In the present paper English, German, French, Italian and Polish phraseological units containing the anthroponym Peter are discussed in a confrontative pcrspective with a special focus on the onym. In the phraseologisms the anthroponymic component functions as: the saint's name, the element of the name of a children' s book hero (Peter Pan), the first name followed by a surname (Peter Funk, Peter Jay), the deproprial name of a children's game (der schwarze Peter). The most numerous groups of idioms in the languages compared is composed of the units containing the saint's name. Many of them belong to recessive phraseology, others are of international character. The name of the children's book hero functions as a component of units found in all languages analyzed. The idioms realizing the model 'the first name followed by a surname' are found in English phraseology, while the deproprial name of a children's game is a component of a German idiom.
Ponencia - Claudia Ligia Esperanza Charry Poveda - Lund, Suecia - 2014
Authors: Claudia Ligia Esperanza Charry Poveda
Published: February 2021

Informe de movilidad académica. Universidad de Lund, Suecia.
El perdón y la reconciliación como expresión máxima de las enseñanzas de Jesús de Nazareth
Authors: Andrés Felipe Rivera Gómez
Published: February 2021

La presente reseña dará razón del diálogo con Teresita Gaviria, coordinadora del colectivo: “Madres de la Candelaria”, en torno al tema: “El perdón y la reconciliación como expresión máxima de las enseñanzas de Jesús de Nazareth”, esto como parte de la dimensión de la espiritualidad y compromiso cristiano, dado en el contexto de la cátedra de Cultura Teológica y que se realizó el 26 de mayo de 2020.
Misión académica - Diego Mauricio Plazas Gil - Guatapé (Antioquia, Colombia) - 2015
Authors: Diego Mauricio Plazas Gil
Published: February 2021

Informe de movilidad académica. Red Colombiana de Posgrados - Asamblea General
Ponencia - Jeisson Fernando Lancheros Jimenez - Pereira, Colombia - 2014
Authors: Jeisson Fernando Lancheros Jimenez
Published: February 2021

Informe de movilidad académica, Asamblea Nacional de Delegados de FENADECO, Pereira, Colombia.
Tanggung Jawab Perusahaan Aplikasi Go-Jek Atas Mitra Kerja Yang Mengalami Kecelakaan Lalu Lintas
Authors: Maulana Hafizh , Hejazziey Djawahir
Published: February 2021

AbstrakStudi ini bertujuan untuk mengetahui kedudukan hukum prihal pertanggungjawaban antara perusahaan Go-Jek    dengan mitra kerjanya. Belum jelasnya pertanggungan asuransi kecelakaan terhadap driver disebabkan belum adanya peraturan yang secara jelas mengatur tentang kendaraan roda dua yanga dijadikan alat transpoirtasi umum di Indonesia. Penelitian ini menggunakan jenis penelitian library research dan field research yang mengkaji berbagai data dokumen terkait penelitian dan menggabungkan dengan data wawancara yang dilakukan secara langsung dengan subjek penelitian. Metode analisis yang digunakan adalah normative-empiris dengan menggunakan pendekatan perundang-undangan (statute approach). Metode pengumpulan data yang digunakan adalah studi kepustakaan dan wawancara. Hasil dari penelitian ini menunjukkan bahwa hubunagan hukum antara driver dengan PT. Go-Jek    Indonesia hanya sebatas hubungan mitra kerja sehingga PT. Go-Jek    Indonesia tidak bertanggung jawab apabila terjadi kecelakaan kerja, hanya saja mitra kerjanya akan ada asuransi yang dikelola berupa Go-Protection dan juga bekerjasana dengan allianz sebagai bentuk perlindungan keselamatan kerja. Kendaraan roda dua yanga dijadikan alat transpoirtasi umum di Indonesia tidak masuk dalam klasifikasi kendaraan bermotor umum dikarenakan tidak diatur dalam peraturan perundang-undangan. Kata Kunci : Go-Jek   , Pertangungjawaban Kemitraan.
Penyelesaian Kasus Tindak Pidana Anak Melalui Diversi Dalam Perspektif Sistem Peradilan Pidana Anak
Authors: Ramadhan Azhary , Kamarusdiana Kamarusdiana , Soefyanto Soefyanto
Published: February 2021

Studi ini bertujuan untuk mengetahui penerapan restorative justice yang sudah berlaku di Indonesia dalam perkara pidana anak. Restorative justice sendiri merupakan model penyelesaian perkara pidana yang mengedepankan pemulihan terhadap korban, pelaku, dan masyarakat. Prinsip utama restorative justice adalah adanya partisipasi korban dan pelaku, partisipasi warga sebagai fasilitator dalam penyelesaian kasus, sehingga ada jaminan anak atau pelaku tidak lagi mengganggu harmoni yang sudah tercipta dalam masyarakat. Penelitian ini bertujuan untuk menjawab apkah prinsip restorative justice dapat diterapkan di Indonesia dengan sistem hukum yang berlaku, serta menjawab apakah penerapan diversi terhadap pidana anak di Indonesia sudah sesuai dengan prinsip restorative justice.  Penelitian ini merupakan penelitian hukum normative dengan menggunakan pendekatan statue approach atau pendekatan Undang-Undang dengan sumber data primer yakni Undang Undang Sistem Peradilan Pidana Anak Nomor 11 Tahun 2012, dengan pengolahan data berdasarkan data penerapan diversi di Indonesia, kemudian dianalisis dalam bentuk pernyataan dan diagram. Penelitian ini menggunakan teori Lawrence M. Friedman yang dikaitkan dengan hukum Islam, serta teori Restorative Justice dan teori Kemanfaatan hukum. Hasil penelitian menunjukan bahwa penerapan restorative justice di Indonesia menemukan bahwa para penegak hukum dalam melaksanakan diversi masih cukup rendah, karena menurut catatan masih banyak para penegak hukum di tingkat kepolisian, kejaksaan dan pengadilan belum efektif dalam menerapkan diversi pada peradilan anak.
Determination of 234U and 238U Activities in Soil by Liquid Scintillation and High-Resolution Alpha Spectrometry
Authors: Elena Montero-Cabrera María , Rocío Caraveo-Castro Carmen del , Grisel Méndez-García Carmen , Aurora Mendieta-Mendoza , Marusia Rentería-Villalobos , Magaly Cabral-Lares Rocío
Published: February 2021

Uranium is a radioactive element with a special presence in the rocks, waters, sediments, soils, and plants at the state of Chihuahua. The activity ratio of 238U/234U is used to explain the uranium transport by surface water and its deposition in arid environments. In this work, the activity concentration of natural U isotopes is determined by PERALS liquid scintillation and high-resolution alpha spectrometry (AS, Canberra camera 7401VR) in the Environmental Radiological Surveillance Laboratory (LVRA) at CIMAV, Chihuahua. Uranium is extracted from soils through the scintillating liquid extractor URAEX for PERALS, with chemical recovery (CR) of 80 - 85 %, and through the ion exchange resin UTEVA + electrode position by the Hallstadius method, with CR of 85 - 90 %, for AS. The procedures of 234U and 238U activity concentration (AC) determination in soils were validated by their application to the certified reference material IAEA-375. The resulting values were in the reference range of the certified or informative values. Both procedures were applied to 6 representative soil samples, with AC of the same order of magnitude or greater, and similar CR and compatible results. Both procedures are satisfactory for the purposes of LVRA research and in general.
Simultaneous Grafting of Poly(Acrylic Acid) and Poly(Ethylene Glycol) onto Chitosan using Gamma Radiation: Polymer Networks for Removal of Textile Dyes
Authors: Carreón-Castro M. D. P. , Caldera-Villalobos M. , Leal-Acevedo B. , Herrera-González A. M.
Published: February 2021

Chitosan is a bio-based polyelectrolyte with high potential for wastewater treatment. Chitosan can remove anionic dyes by adsorption but it has low performance in the removal of cationic dyes. In this work, we report the synthesis of chitosan-based graft-copolymers using gamma radiation. Acrylic acid and poly(ethylene glycol) were grafted successfully onto chitosan applying a radiation dose of 12 kGy at a dose rate of 8 kGyh-1. The grafted-copolymers have improved adsorptive properties for the removal of basic dyes reaching a maximum adsorption capacity higher than 300 mgg-1. The Lanmguir’s isotherm model described satisfactorily the interaction between the grafted copolymers and basic dyes. Freundlich’s isotherm model described the adsorption of anionic dye acid orange 52. The grafted copolymers removed successfully textile dyes from wastewater of the dyeing process. The best results were obtained in the removal of direct and basic dyes. Further, poly(ethylene glycol) grafted on the copolymer conferred better swelling behavior making easy the separation of the adsorbent after dye removal. The results showed that the adsorbent materials synthesized by radiochemical graftcopolymerization are more efficient than the beads, composite materials, and blends of chitosan.
An mHealth Intervention for Pregnancy Prevention for LGB Teens: An RCT
Authors: Ybarra Michele , Goodenow Carol , Rosario Margaret , Saewyc Elizabeth , Prescott Tonya
Published: February 2021

BACKGROUND:

Although lesbian, gay, bisexual and other sexual minority (LGB+) girls are more likely than heterosexual girls to be pregnant during adolescence, relevant pregnancy prevention programming is lacking.

METHODS:

A national randomized controlled trial was conducted with 948 14- to 18-year-old cisgender LGB+ girls assigned to either Girl2Girl or an attention-matched control group. Participants were recruited on social media between January 2017 and January 2018 and enrolled over the telephone. Between 5 and 10 text messages were sent daily for 7 weeks. Both experimental arms ended with a 1-week booster delivered 12 weeks subsequently.

RESULTS:

A total of 799 (84%) participants completed the intervention end survey. Participants were, on average, 16.1 years of age (SD: 1.2 years). Forty-three percent were minority race; 24% were Hispanic ethnicity. Fifteen percent lived in a rural area and 29% came from a low-income household. Girl2Girl was associated with significantly higher rates of condom-protected sex (adjusted odds ratio [aOR] = 1.48, P < .001), current use of birth control other than condoms (aOR = 1.60, P = .02), and intentions to use birth control among those not currently on birth control (aOR = 1.93, P = .001). Differences in pregnancy were clinically but not statistically significant (aOR = 0.43, P = .23). Abstinence (aOR = 0.82, P = .34), intentions to be abstinent (aOR = 0.95, P = .77), and intentions to use condoms (aOR = 1.09, P = .59) were similar by study arm.

CONCLUSIONS:

Girl2Girl appears to be associated with increases in pregnancy preventive behaviors for LGB+ girls, at least in the short-term. Comprehensive text messaging–based interventions could be used more widely to promote adolescent sexual health behaviors across the United States.
Evaluation of oxidative/nitrative stress and uterine artery pulsatility index in early pregnancy
Authors: Gerszi D. , Penyige Á. , Mezei Z. , Sárai-Szabó B. , Benkő R. , Bányai B. , Demendi C. , Ujvári E. , Várbíró S. , Horváth E.M.
Published: February 2021

Introduction

Increased oxidative/nitrative stress is characteristic not only in pathologic, but also in healthy pregnancy. High uterine artery pulsatility index (UtAPI) at the end of the first trimester is associated with altered placentation and elevated risk for adverse pregnancy outcomes. We aimed to examine the relationship of systemic oxidative/nitrative stress and uterine artery pulsatility index in the first trimester and their correlation to pregnancy outcomes.

Material and methods

Healthy pregnant women were recruited at 12–13th gestational week ultrasound examination; UtAPI was determined by color Doppler ultrasound. Patients were divided into high (UtAPI ≥ 2.3) (n= 30) and low (n= 31) resistance groups, and pregnancies were followed until labor. Systemic oxidative/nitrative stress was estimated by measuring total peroxide level, total antioxidant capacity and nitrotyrosine level.

Results

Plasma total peroxide level was significantly lower (2,510 ± 39 µM vs. 2,285 ± 59 µM), total antioxidant capacity was higher (781 ± 16 mM CRE vs. 822 ± 13 mM CRE) in the high UtAPI group, which were accompanied by lower birth weight (3,317 ± 64 vs. 3,517 ± 77 g,P< 0.05). Plasma total peroxide level showed a negative correlation (by Pearson) to UtAPI (P< 0.01) and positive correlation to birth weight (P< 0.05).

Conclusions

According to our results, lower systemic oxidative stress showed correlation with high UtAPI measured between the 12–13th weeks of gestation. We also found significant differences in the birth weight of healthy newborns; therefore it is worth examining this relationship in pathological pregnancies.
What determines the varying relation of case and agreement? Evidence from the Ugric languages
Authors: Kiss Katalin É.
Published: February 2021

Agreement and case assignment can be interdependent, partially independent, or independent of each other (Baker & Vinokurova 2010; Baker 2014, 2015). These parametric options appear to have random distribution across languages. This paper claims on the basis of the comparison of the Ugric languages (Mansi, Khanty, and Hungarian) that the correlation of case and agreement or the lack of it may not be random. A strict correlation of case and agreement is attested in sentence structures displaying a fusion of grammatical functions and discourse roles. When these roles are encoded in distinct clausal domains, case and agreement have separate functions and licensing conditions, with case marking grammatical functions, and agreement associated with discourse roles. At the same time, relics of their former syntactic interdependence may survive in morphology, resulting in a partial correlation between case and agreement. It is shown that dependent case theory can account for the whole range of variation attested in the relation of case and agreement.
The impact of hydropeaking on sediment transport
Authors: Buček Daniel , Orfánus Martin , Dušička Peter , Šulek Peter
Published: February 2021

Variable renewable energy sources, e.g. solar and wind power, require flexible management of energy sources to stabilize the power grid. Immediate changes in power generation and power usage is compensated for by the operation of hydropower plants. This subsequently leads to frequent flow fluctuations – hydropeaking downstream of the hydropower plant. This study examines the short-term impacts of hydropeaking of hydropower plants on the sediment transport using numerical morphodynamic model. The model is calibrated to field measurements and subjected to various hydropeaking scenarios on daily to sub-daily scale. Based on this study, the effect of hydropeaking of hydropower plant 23.42 km upstream of the studied river section would have negligible effect on the bedload transport in the studied cross section.
CONCEPÇÃO DE EDUCAÇÃO DE THINK TANKS LIBERAIS NO BRASIL E GOVERNAMENTALIDADE NEOLIBERAL
Authors: César Vargas Neide Cesar Vargas , Marques Rosa Maria
Published: February 2021

Este artigo visa identificar a atuação do Instituto Mises Brasil e do Instituto Rothbard como mecanismos de conformação da racionalidade neoliberal no campo da educação no Brasil. Tem como hipótese mais geral a noção de que think tanks liberais são mecanismos específicos de propagação da racionalidade neoliberal pelo mundo. Trata-se de um estudo bibliográfico e documental que insere os think tanks em foco nos processos históricos mundiais e nacionais de sua evolução. Toma como filtro de análise das concepções de educação dessas organizações o conceito de governamentalidade neoliberal de Dardot e Laval (2016) e sua extensão efetuada por Brown (2019). As principais conclusões indicam que a atuação dessas organizações e sua concepção de educação são parte de um movimento mais global de reação ideológica à crise financeira de 2008. Na educação, essa concepção envolve a desqualificação do ensino público e obrigatório com argumentos da Escola Austríaca e da ideologia do “marxismo cultural”, propondo uma educação centrada nas famílias e implantada mediante estratégias de privatização extrema.
The role of the construction project manager in developing a culture of suicide prevention
Authors: Guerin Cian , Spillane John P
Published: February 2021

The construction industry is the most significant occupational contributor to suicide rates worldwide. This is credited to strenuous working conditions, lack of awareness in mental health culture, but more so, that help-seeking is seen as a weakness. This study aims to investigate the role of the construction project manager in creating a culture of suicide prevention on-site. This is achieved through delving into the principles of culture creation within differing industries, with adaptations for construction managers, through a comparative analysis of culture creation literature. Twenty-two interviews with employees are undertaken. Representative data gathered are analysed and presented, to highlight the levels of knowledge, barriers and proposed solutions, for construction project managers. Results are broken down into ‘awareness of and openness to discussing suicide prevention’, ‘barriers to the adoption of suicide-prevention measures’ and ‘proposed solutions to the adoption of suicide-prevention measures’. The interviews give an insight into the acceptance of the need for stronger mental health support structures, without necessarily any regard for the method of their implementation. The originality and subsequent value in the research are the proposed use of construction project managers as the conduit in beginning to address and, as a result, develop a culture of suicide prevention on-site.
Oxidative damage of nanomaterial cells in gastrointestinal smooth muscle movement
Authors: Fan Wenhua
Published: February 2021

If gastrointestinal smooth muscle suffers from oxidative damage, the risk of canceration is very high. Gold nanostars/collagen (AuNSs/Col) solutions of 0, 0.05, 0.10, 0.15 and 0.20 mg/ml were prepared by dissolving the new AuNSs in rat tail collagen solution. Live/dead staining was used to observe the survival rate and proliferation rate of cells under a fluorescence microscope, and the superoxide dismutase activity and malondialdehyde content were calculated according to the values. The glutathione peroxidase (GSH-Px) reagent was added to the two groups, and the optical density values of each tube were measured by using an enzyme scale instrument. The activity of GSH-Px was calculated according to the value, and the reactive oxygen species level was expressed by fluorescence intensity. Live/dead staining showed that the lower the concentration of AuNSs/Col, the higher the survival rate of GES-1 cells. The 0.1 mg/ml AuNSs/Col group had no toxicity to GES-1 and could further promote the proliferation of GES-1. The 0.1 mg/ml AuNSs/Col composite had the highest proliferation activity to GES-1. The higher the concentration of AuNSs/Col nanocomposites is, the more serious the oxidative damage of GES-1 cells is.
Correlation between Balance and BMI in Collegiate students: A cross sectional study
Authors:   Alva’s College Of Physiotherapy, Moodbidri, Dk-574227, Karnataka, India., Suvarna Tejaswini Padmanabha , Raj Joseph Oliver ,   Dean, Abhinav Bindra Sports Medicine and Research Institute, Bhubaneswar, Odisha, India., Prakash Nithin ,   Assistant Professor, Alva’s College Of Physiotherapy, Moodbidri, Dk-574227, Karnataka, India.
Published: February 2021

Background: Balance deficits are usually related to medial-lateral instability. BMI could be an important factor to consider as; excess body mass or increased accumulation of adipose tissue can directly impact the postural stability which in return impacts balance. Purpose of the study: To find the correlation between BMI and Balance. Method: Sample consisted of 149 students, out of which 100 (67%) were males and 49 (33%) were females. BMI was calculated and was categorized into groups. Bilateral limb length was measured for normalising the data. Static balance was measured by performing blinded stork test and dynamic balance by performing Y- balance test. Data was analysed using Pearson’s correlation test. Result: There was significant correlation between BMI and static balance of left leg (r=0.713, 95% CI 0.623, 0.784, p=0.01) but on comparison, there was no significant correlation between BMI and static balance of right leg (r=0.0458, 95% CI -0.11, -0.205, p=0.58). It was found that there was no significant correlation between BMI and Left Anterior (r= -0.134, 95% CI -0.289, -0.0274, p= 0.103), Left Posterolateral (r=-0.0775, 95% CI -0.235, 0.0843, p=0.347), Left Posteromedial (r=-0.0903, 95% CI -0.248, -0.0715, p=0.273) respectively. Also, it was found that there was no significant correlation between BMI and Right Anterior (r=-0.236, 95% CI -0.382, -0.0778, p=0.00381), Right Posterolateral (r=-0.193, 95% CI -0.343,-0.0334, p=0.0183), Right Posteromedial (r=-0.126, 95% CI -0.281, -0.0354, p=0.125) respectively. Conclusion: There was significant correlation between BMI and static balance of left leg and no correlation was established between BMI and static balance on right leg and also no correlation was established between BMI and static and dynamic balance for right and left leg. KEY WORDS: Static balance, Dynamic balance, Body Mass Index, Obesity, Limb length.
Sistema de talhadia: desenvolvimento de cepas de eucalyptus sp. Submetidas à adubação e calagem
Authors: Carvalho Douglas Edson , Martins Ana Paula Marques , Zavoiski Lucas , Weber Veridiana Padoin , Longhi Solon Jonas
Published: February 2021

O objetivo do presente estudo foi avaliar a sobrevivência e o desenvolvimento inicial em número e altura média da maior brotação na condução da rebrota de cepas de uma floresta de Eucalyptus sp. com diferentes níveis de adubação e calagem em uma área de 840 m², com espaçamento 2 x 2 m, após a colheita aos sete anos de idade, no município de Irati, Paraná. Os tratamentos foram dispostos em delineamento em blocos casualizados com quatro tratamentos de adubação e calagem com duas repetições cada, submetida à Anova e ao teste de comparação múltipla de médias a 95% de confiabilidade. Os tratamentos foram: T1 – testemunha; T2 – fertilização recomendada; T3 - calagem recomendada e T4 - fertilização + calagem recomendadas. Houve sobrevivência de 100% das cepas sem diferença significativa entre tratamentos em três meses de avaliação. O número de brotações por cepa não diferiu estatisticamente com a aplicação de fertilizante e calagem. O crescimento em altura apresentou diferenças significativas, com a aplicação de fertilização junto à calagem apresentando o melhor resultado no crescimento em altura.
Efficiency of foliar sulfur supply to soybean in different developmental stages
Authors: Fiorini Ivan Viela Andrade , Pereira Cassiano Spaziani , Pereira Helcio Duarte , Balbinot Luiz Gustavo , Wiest Gabriel , Schoffen Mateus Emanuel
Published: February 2021

A soja é uma cultura de destaque mundial, cujos grãos têm inúmeros usos na alimentação humana e animal. Dentre os nutrientes essenciais o enxofre é um macronutriente constituinte de proteínas e aminoácidos sendo requerido em quantidade considerável pelas leguminosas. O objetivo do trabalho foi determinar o efeito da utilização de enxofre, via aplicação foliar em diferentes estádios de desenvolvimento da soja, sobre características de desenvolvimento vegetativo e componentes de produtividade. O experimento foi conduzido a campo sob delineamento experimental em blocos casualizados com quatro repetições, em esquema fatorial 3x5 (3 épocas de aplicação via foliar e 5 doses de enxofre). A cultivar de soja TMG 132RR foi utilizada nessa investigação com as doses de 0, 250, 500, 750 ou 1000 mL ha-1 de enxofre aplicadas nos estádios V2, V2+10 ou V2+20 dias. A época de aplicação de enxofre foliar influenciou a produção de matéria seca da parte aérea e a altura de plantas, sendo o estádio V2+20 dias a época mais recomendada. A resposta às diferentes doses de enxofre variou com base nos resultados do teor de clorofila foliar e a altura de plantas. Para a produtividade de grãos houve interação entre época de aplicação de enxofre e dose, sendo a dose de 731 mL ha-1 aplicada em V2 a de máxima produtividade de3690 Kg ha-1. Os componentes de rendimento número de vagens por planta e número de grãos por vagem não foram afetados pelas épocas ou doses de aplicação de enxofre. Para peso de mil grãos as respostas às diferentes doses variaram conforme a época de aplicação.
Estudo de separação de terras raras por extração líquido-líquido homogênea
Authors: Reis Efraim Lázaro , Zamora Patrício Peralta , Martins José Walter
Published: February 2021

Usando tenoiltrifluoroacetona (HTTA) e o sistema ternário homogêneo de solventes composto por água, etanol e metilisobutilcetona (MIBC), foram estudadas as extrações líquido-líquido homogêneas de Y, La, Ce, Pr, Nd, Sm, Eu, Gd e Dy. Quando trietanolamina (TEA) foi usada para ajustar o pH do sistema ternário homogêneo (pHFU), as curvas de extrações para Eu, La e Pr se posicionaram quase na vertical. As extrações líquido-líquido homogêneas foram realizadas com uma mistura comercial de terras raras. Quando o processo de extração foi realizado em pHFU inferior a 2,5, algumas terras raras foram significativamente enriquecidas.
Instruction level of operators of agricultural sprayers
Authors: Martini Alfran Tellechea , Schlosser José Fernando , Bertollo Gilvan Moisés , De Farias Marcelo Silveira Silveira , Dos Santos Gustavo Oliveira , De Oliveira Luis Fernando Vargas
Published: February 2021

O agronegócio brasileiro é o setor que se destaca por contribuir de forma significativa no produto interno bruto (PIB) do País. Ao longo dos anos, a produção primária brasileira tem demonstrado elevada capacidade competitiva em diversos setores, destacando-se a produção das commodities agrícolas. No entanto, o uso excessivo de agrotóxicos para proteção de plantas, não somente é antieconômico, como também pode provocar consequências adversas à saúde humana, ao ambiente e a agricultura. Assim, o nível de conhecimento dos operadores de máquinas agrícolas destinadas à realização do tratamento fitossanitário das culturas, bem como, dos trabalhadores envolvidos de forma direta ou indireta neste processo é, de fundamental importância na busca pela redução dos riscos ambientais e pessoais, garantindo desta forma, qualidade nas atividades de pulverização. Neste sentido, o objetivo deste trabalho foi estabelecer o nível de conhecimento dos operadores no que se refere à segurança operacional, bem como, ao uso e manejo de agrotóxicos. Para tanto, utilizaram-se informações adquiridas por meio de um questionário aplicado a 56 operadores de pulverizadores agrícolas em duas regiões, Fronteira Oeste e Central do Estado do rio Grande do Sul. Ao analisar os resultados obtidos, pode-se concluir que o nível de conhecimento dos operadores é considerado inseguro, principalmente no que diz respeito à segurança operacional e ao manejo dos agrotóxicos. A capacitação dos operadores se faz necessária quanto a adoção da metodologia adequada para a calibração dos pulverizadores, portanto, estas atividades técnicas de treinamento devem ser realizadas com maior frequência.
The construction of the African being in South African history textbooks
Authors: Maposa Marshall
Published: February 2021

This study is rooted in the move by the South African government at the turn of the 21stcentury to spearhead the conception of what then President Thabo Mbeki referred to as anAfrican Renaissance. This move entailed cultivating an African consciousness; educationbeing one of the key tools. With textbooks still playing a critical role in the educationsystem, I analysed South African National Curriculum Statement-compliant historytextbooks in order to understand the construction of the African being. I employed a criticaldiscourse analysis methodology to analyse a sample of four contemporary South Africanhistory textbooks with a focus on the chapters that deal with post-colonial Africa. At adescriptive level of analysis, the textbooks construct the African being as five-dimensional:the spatial, the physical, the philosophical, the cultural and the experiential notions. Theinterpretation is that the African being is constructed as multidimensional. I usepostcolonial theory to explain that while the macro-level of power produces the dominantdiscourses, the micro-level of the citizen also contributes to the discourses that permeate thehistory textbooks. Indeed, the production of textbooks is influenced by multifarious factorsthat when the discourses from the top and from below meet at the meso-level of textbookproduction, there is not just articulation but also resistance, thus producing heteroglossicrepresentation of the African being.