bluuebunny/crossref_metadata_2025 huggingface dataset:
ENSINO E A APRENDIZAGEM DA MATEMÁTICA ESCOLAR A PARTIR DAS VIVÊNCIAS COTIDIANAS DOS POVOS DO CAMPO
Authors: Nery Eliana Bispo Vitoria , Dos Santos Olga Rodrigues , Porto Klayton Santana
Published: May 2021

Esta pesquisa teve como objetivo investigar as contribuições da Etnomatemática na contextualização e no processo de ensino e aprendizagem dos conceitos matemáticos das quatro operações fundamentais em duas turmas do 6º ano do Ensino Fundamental de uma escola do campo. Realizamos uma pesquisa descritiva, de natureza qualitativa, desenvolvida com trinta e cinco estudantes de uma escola do campo da Rede Municipal de Educação de Feira de Santana-BA, situada em um distrito da zona rural deste município. Como instrumentos de coleta de dados, utilizamos um pré-teste, diário de bordo e pós-teste. Nossos dados revelaram que o ensino da Matemática, quando contextualizado por meio dos aportes da Etnomatemática, sobretudo quando levamos em consideração as vivências dos sujeitos do campo, contribuiu para melhorar o entendimento dos estudantes sobre os conceitos matemáticos relacionados às quatro operações matemáticas fundamentais.
POLÍTICAS DE FORMAÇÃO DE PROFESSORES PARA A INCORPORAÇÃO DA TECNOLOGIA AO TRABALHO DOCENTE
Authors: Mourão Arminda Rachel Botelho , Castro Tânia Mara de Souza
Published: May 2021

O artigo é resultado de pesquisa do mestrado que objetivou analisar a representação social de tecnologia, entre formadores e cursistas, no Núcleo de Tecnologia Educacional em Manaus/AM, suas implicações na formação docente e nos processos de implementação das políticas de inserção da tecnologia no trabalho docente na Amazônia. Nesse sentido, foi realizado um estudo empírico fundamentado na Teoria da Representação Social como eixo teórico-metodológico, seus mecanismos de formação e estruturação para apreender a materialidade e a acepção do termo tecnologia. Os resultados obtidos com o desenvolvimento da pesquisa indicam a coexistência de dois sentidos do termo: a tecnologia como produto (meio material) e como processo (estratégias de gestão, interações e mediações didáticas).
VELHICE, EDUCAÇÃO E GÊNERO
Authors: Menezes Kelly Maria Gomes
Published: May 2021

O presente estudo buscou analisar os significados que as mulheres idosas – participantes de um Programa de Educação de Jovens e Adultos – atribuem à educação. Para tanto, lançou-se mão da pesquisa qualitativa, com auxílio das pesquisas de tipo bibliográfica, documental e de campo, além das técnicas de observação direta e entrevista não estruturada. Como campo da pesquisa, selecionou-se um Programa de EJA em uma escola municipal, com a participação de cinco alunas, cujas narrativas foram interpretadas à luz da Hermenêutica-Dialética. As suas percepções foram reunidas em três categorias empíricas: lazer/sociabilidade, cidadania/pertença, liberdade/autonomia. Os significados foram muito diversos, mas todos concorreram para a necessidade de ampliação de espaços educacionais para as mulheres, especialmente na velhice, em que possam reconhecer suas demandas singulares no decorrer de todas as fases da vida.
A QUESTÃO AFRO-BRASILEIRA SOB A PERSPECTIVA DA GESTÃO ESCOLAR EM NÍVEL BÁSICO NA CIDADE DE CUIABÁ, MT
Authors: Silva Leonelson Dias , Ponce de Leon Ramírez Germana
Published: May 2021

Diante da discriminação étnica e cultural pautada em políticas pedagógicas sob uma perspectiva etnocêntrica, é preciso mais conscientização e envolvimento no tocante ao combate à discriminação aos afro-brasileiros(as) nos espaços escolares. Nesse processo, a gestão escolar é imprescindível. Esta pesquisa, que é de abordagem qualitativa e de caráter exploratório, objetiva analisar as ações educativas sobre a questão afro-brasileira na perspectiva da gestão de uma instituição de ensino no município de Cuiabá, MT. Aplicou-se entrevista semiestruturada a quatro gestores e, com isso, identificou-se que: os gestores desconhecem as leis que tratam sobre as questões étnico-raciais; a discriminação, no âmbito escolar, não é reconhecida; essa temática é abordada apenas em datas específicas. Percebe-se a necessidade de a gestão escolar ser mais atenta às ações discriminatórias existentes de diferentes formas no espaço escolar.
Characterization of Patients With Obstructed Defecation and Slow Transit Constipation With a Simulated Stool
Authors: Gregersen Hans , Chen Ssu-Chi , Leung Wing Wa , Wong Cherry , Mak Tony , Ng Simon , Daming Sun , Futaba Kaori
Published: May 2021

INTRODUCTION:

Defecatory disorders including obstructed defecation (OD) are currently diagnosed using specialized investigations including anorectal manometry and the balloon expulsion test. Recently, we developed a simulated stool named Fecobionics that provides a novel type of pressure measurements and analysis. The aim was to study OD phenotypes compared with slow transit constipation (STC) patients and normal subjects (NS).

METHODS:

Fecobionics expulsion parameters were assessed in an interventional study design. The Fecobionics device contained pressure sensors at the front, rear, and inside a bag. All constipation patients had colon transit study, defecography, anorectal manometry, and balloon expulsion test performed. The Fecobionics bag was distended in the rectum until desire-to-defecate in 26 OD compared with 8 STC patients and 10 NS. Rear-front pressures (preload-afterload parameters) and defecation indices (DIs) were compared between groups.

RESULTS:

The Wexner constipation scoring system score was 13.8 ± 0.9 and 14.6 ± 1.5 in the OD and STC patients (P > 0.5). The median desire-to-defecate volume was 80 (quartiles 56–80), 60 (54–80), and 45 (23–60) mL in OD, STC, and NS, respectively (P < 0.01). The median expulsion duration was 37 (quartiles 15–120), 6 (3–11), and 11 (8–11) seconds for the 3 groups (P < 0.03). Fecobionics rear-front pressure diagrams demonstrated clockwise loops with distinct phenotype differences between OD and the other groups. Most DIs differed between OD and the other groups, especially those based on the anal afterload reflecting the nature of OD constipation. Several OD subtypes were identified.

DISCUSSION:

Fecobionics obtained novel pressure phenotypes in OD patients. DIs showed pronounced differences between groups. Larger studies are needed on OD subtyping.
Eksplorasi dan Penentuan Ras Penyebab Penyakit Blas Padi di Kabupaten Maros
Authors: Salimah Nur Azizah , Tutik Kuswinanti  , Andi Nasruddin
Published: May 2021

Exploration and Determination of Rice Blast Races in Maros Regency

Blast disease caused by the fungus Pyricularia oryzae (Teleomorph: Magnaporthe oryzae) is one of the most important diseases causing significant yield losses on rice worldwide. The fungus has a high degree of virulence and adaptation as evidenced by the large number of its races. The study was conducted to identify the race of P. oryzae isolates and their distribution in eight sub-districts in Maros Regency. Race identification was determined based on bioassay using seven differential rice varieties, i.e. Asahan, Cisokan, IR 64, Krueng Aceh, Cisadane, Cisanggarung and Kencana Bali varieties. Observation of disease severity followed the Standard Evaluation System for Rice by IRRI. Susceptibility of host plant was assessed based on leaf spot symptom on the scale of 5 to 9. As many as 30 isolates of P. oryzae were found with the distribution as follows, 4 isolates from Bantimurung, 8 isolates from Simbang, 4 isolates from Maros Baru, 3 isolates each from Moncongloe, Tanralili, Tompobulu, Mandai, and 2 isolates from Lau. A total of 17 P. oryzae races were identified, namely race 000, 001, 011, 020, 023, 031, 033, 041, 061, 101, 103, 111, 141, 173, 221, 301 and 373. Race 001 is the dominant race in which it was found at five locations where P. oryzae isolates were collected.
Keragaman Morfologi dan Molekuler Lasiodiplodia theobromae dari Tanaman Jeruk, Kakao, Karet, Manggis, dan Pisang
Authors: Sandra Fitri Kemala , Nurhasanah Yayu Siti , MUTAQIN KIKIN , Wiyono Suryo , Tondok Efi Toding
Published: May 2021

Lasiodiplodia theobromae adalah cendawan patogen penting dan kosmopolitan di daerah tropis dan subtropis. Kisaran tanaman inangnya sangat luas, termasuk komoditas bernilai ekonomi tinggi di Indonesia, seperti jeruk, kakao, karet, pisang, dan manggis. Keragaman intraspesies galur cendawan hasil isolasi lima tanaman diamati berdasarkan pada ciri morfologi dan marka molekuler RAPD-PCR. Keragaman intraspesies ditunjukkan dari perbedaan laju pertumbuhan vegetatif koloni pada medium agar-agar dekstrosa kentang serta kemampuan menghasilkan struktur reproduksi. Galur cendawan asal jeruk, karet, dan pisang tumbuh cepat dan menghasilkan piknidium dan konidum pada medium agar-agar dekstrosa kentang  dan medium agar-agar air yang dimodifikasi, sedangkan galur asal kakao dan manggis tumbuh lambat dan hanya dapat menghasilkan struktur reproduksi pada medium agar-agar air yang dimodifikasi. Keragaman antargalur dalam spesies L. theobromae ditunjukkan oleh perbedaan nyata morfologi struktur reproduksi. Konidium muda (tanpa sekat) memiliki panjang berkisar 13.5-25.7 μm, lebar 8.1-14.0 μm, dan nisbah panjang/lebar 1.5-2.2; sedangkan untuk konidium matang (bersekat) memiliki  panjang 15.4-23.6 μm, lebar 10.7-12.8 μm, nisbah panjang/lebar 1.4-1.9. Walaupun ukuran konidium antargalur menunjukkan perbedaan, namun masih dalam kisaran ciri ukuran spesies L. theobromae. Profil fragmen DNA RAPD-PCR menggunakan primer tunggal OPB-01 maupun OPB-07 masing-masing menghasilkan jumlah dan ukuran pita DNA yang berbeda-beda antara lima galur sehingga menunjukkan adanya keragaman molekuler antargalur dalam satu spesies tersebut.
An efficient design for real-time obstructive sleep apnea OSA detection through esophageal pressure Pes signal
Authors: Ben Salah Ghada , Abbes Karim , Abdelmoula Chokri , Naji Baligh , Masmoudi Mohamed , Abdelmoula Mohamed Hedi , Turki Mohamed
Published: May 2021

Obstructive Sleep Apnea (OSA) is a potentially common sleep disorder in which the upper airways are collapsed either partially or completely. The golden standard method for treating OSA, is the full night Continuous Positive Airway Pressure (CPAP). Yet, due to the ensuing discomfort, it incurs on patients, researchers have been motivated to investigate other alternatives, whereby, OSA can be effectively treated. Recently, an increasingly popular OSA treatment has been developed that consists in activating the protrusion muscles of the tongue by stimulating the Hypoglossal Nerve (HGN). In this context, the present work is conducted to propose the design of apnea detector module as part of an implantable HGN stimulator based on the esophageal Pressure Pes signal as a new approach for controlling OSA occurrence. Specifically, an effective real-time apnea event detecting algorithm is put forward. Following the achievement of satisfactory simulation results, attained through the Modelsim simulation tool, we proceeded with assessing the possibility of its hardware implementation on a Field-Programmable Gate Array (FPGA) device. To this end, the apnea detector module was synthesized and designed. The low power consumption and the small size, characterizing this module, which have made it possible to integrate it as part of a wirelessly-powered implantable HGN stimulator.
Facile rheological route method for LiFePO4/C cathode material production
Authors: Arinawati Meidiana , Hutama Anjas P. , Yudha Cornelius S. , Rahmawati Mintarsih , Purwanto Agus
Published: May 2021

LiFePO4/C cathode material is largely used in Li-ion batteries due to its low toxicity, nonhazardous and high stability features. A facile and simple approach is proposed in LiFePO4/C production using low-cost materials. The effect of carbon addition during the formation of LiFePO4/C was investigated. Based on the XRD and FTIR analyses, olivine-structured LiFePO4/C cathode material was successfully obtained via methanol-based rheological method. The SEM result showed that the material has micron-sized polyhedral shape. The electrochemical performance tests were conducted in an 18,650-type cylindrical battery. The charge–discharge performances were tested at a voltage range of 2.2–3.65 V using charge and discharge rate of 1C. Based on the charge–discharge test, LiFePO4 with 30% carbon addition has the highest specific capacity of 121 mA h/g with excellent cycle and rate performance as a result of successful carbon compositing in LiFePO4 material. This approach is promising to be adapted for mass production of LiFePO4/C.
The effect of Chlorella vulgaris on obesity related metabolic disorders: a systematic review of randomized controlled trials
Authors: Sanayei Mahzad , Kalejahi Parinaz , Mahinkazemi Mahsa , Fathifar Zahra , Barzegar Ali
Published: May 2021

Objectives

Chlorella vulgaris (CV) as a unicellular algae is a dietary supplement with beneficial nutritious content, used for decades in some countries. Positive effects for CV supplementation on metabolic parameters has been established in animal and human studies. However there is a gap for this results summary for a definite conclusion announce. This systematic review aimed to summarize the effects of CV on body weight, lipid profile, and blood glucose.

Content

PRISMA guidelines were charted in this review. Subject search was performed in MEDLINE, ProQuest, PubMed, ISI web of sciences, Google scholar, Cochrane and Scopus databases for randomized clinical trials published in English languages, until December 2020, which assessed the effects of CV on metabolic syndrome related symptoms in clinical trials.

Out of 4,821 records screened, after duplicate and irrelevant exclusion by title and abstract, 20 articles remained for full text screening. Finally a total of 12 articles met the study inclusion criteria and were assessed for study method and results.

Outlook

The findings showed controversies in anthropometric, glycemic and lipid profile effects. CV may have beneficial effects on obesity-related metabolic disorders; however, collected studies lacked statistical power to reach a definite conclusion. More well-designed studies are required.
Enhancement of thermal conductivity and ultrasonic properties by incorporating CdS nanoparticles to PVA nanofluids
Authors: Singh Shakti Pratap , Tripathi Upendra Mani , Verma Alok Kumar , Jaiswal Aashit Kumar , Dhawan Punit Kumar , Yadav Raja Ram
Published: May 2021

In the present work, semiconducting cadmium sulfide (CdS) nanoparticles have been synthesized by co-precipitation method. X-ray diffraction (XRD), UV–visible (UV/Vis) absorption spectroscopy, and high-resolution transmission electron microscopy (HRTEM) have been used for the characterization of the synthesized nanoparticles. Two-step technique has been used to formulate stable polyvinyl alcohol (PVA)-based CdS nanofluids at room temperature. Thermal conductivities of nanofluids at different temperatures have been measured using Hot Disc Thermal Constants Analyzer. Significant enhancement in thermal conductivity is noted at very low nanoparticle loading. Ultrasonic velocity and ultrasonic attenuation in the prepared nanofluids have been investigated using ultrasonic interferometer and Acoustic Particle Sizer (APS-100), respectively. APS-100 has been also used for the analysis of particle size distribution (PSD) of CdS nanoparticles in the prepared nanofluids. The PSD result of APS-100 is in good agreement with that of HRTEM. The characteristic behavior of CdS nanofluid is illustrated on the basis of its ultrasonic and thermal properties. The thermal conductivity enhancement increases with the temperature and reaches up to 61.6% for 1.0 wt% particle loadings at 80 °C. Our analysis shows that CdS nanofluids have potential application for effective heat transfer management in various cooling industries.
Thermodynamic equilibrium of a fluid column under the influence of gravity
Authors: Björnbom Pehr
Published: May 2021

According to classical and statistical thermodynamics, a well-mixed fluid mass has a uniform temperature and is at thermodynamic equilibrium. It independent of the gravitational field. However, large well-mixed fluid masses, for example, in atmospheres and oceans, often are isentropic. One has attributed that to the influence of gravity. This has raised the question if such masses can go to a different restricted thermodynamic equilibrium with uniform entropy. Discussions on this issue have continued for three centuries without finding a final answer. This paper presents another analysis of the question if a fluid mass under the influence of gravity may go to a restricted equilibrium state with uniform entropy. At first, it analyses previous work as a background study. Then, it describes a kinetic model for the motion of fluid parcels in a vertical fluid column. This model is the tool for studying if and how the column may go to an isentropic equilibrium. The kinetic model supports the hypothesis that a fluid column under the influence of gravity may go to a restricted equilibrium state with an isentropic temperature profile. A statically unstable column can reach that state spontaneously, while its entropy increases and gravitational potential energy decreases. The latter energy is the source of the kinetic energy for the motion of its fluid parcels, driving the internal heat transfer that results in the isentropic profile.
Measuring Dynamic Young’s Modulus of Low-Density Foam Concrete Using Resonant Frequency Test
Authors: Song Yu , Lange David A.
Published: May 2021

Foam concrete is a cellular material mainly used in construction. Because of the low-strength feature of foam concrete, conventional concrete testing methods such as strength measurement are insufficient to characterize the key material attributes of foam concrete, especially for the low-density foam that is commonly designed for functional purposes. Inspired by the nondestructive feature of resonant frequency test, this study investigates the feasibility of using this method to evaluate the dynamic Young’s modulus of foam concrete, especially at the low-density range. Three variables that typically alter foam concrete mechanical properties are considered for evaluating the robustness of this approach—bulk density, water-to-cementitious ratio, and fly ash replacement ratio. The fundamental transverse frequency is found to be most suitable for determining the foam modulus. The experimental results demonstrate good accuracy of using this approach for measuring the dynamic Young’s modulus of different foam concrete samples. It is also confirmed that the foam modulus can be accurately designed if the bulk density of this material and solid modulus of its base cement paste are known.
Development of a Split Hopkinson Pressure Bar Machine for High Strain Rate Testing of Bonded Joints
Authors: Boland Alexandre J. , Lopes António M. , da Silva Carlos M. S. Moreira , Tenreiro António F. G. , da Silva Lucas F. M. , Nunes P. D. P. , Marques E. A. S. , Carbas R. J. C.
Published: May 2021

The design of adhesively bonded connections for structural applications has recently become a major field of research, with extensive applications in the automotive and aerospace industries. In these structures, bonded joints are often subjected to important static and dynamic loads, which require careful geometrical dimensioning and material selection. The performance analysis of adhesive joints under these conditions is often made with numerical modeling and supported by experimental studies that can correctly characterize their mechanical behavior. To obtain this characterization under impact conditions, it is critical to employ equipment suitable for impact testing of adhesives and adhesive joints. For this reason, an innovative Split Hopkinson Pressure Bar machine was designed. This machine includes a pneumatic actuator capable to operating up to 30 m/s in both directions, and an innovative lever-based braking system, capable of stopping the actuator for both tensile and compression tests. The tensile and compression pressure bar setups, as well as the machine support and its characteristics, are also described.
High Temperature Corrosion Stability of Ceramic Materials for Magnetohydrodynamic Generators
Authors: Bowen Michael S. , Kwong Kyei-Sing , Hsieh Peter , Cann David P. , Woodside C. Rigel
Published: May 2021

Corrosion by alkali metals and their compounds poses a significant challenge to the long-term material stability and service life for both metal alloys and ceramics at high operating temperatures. Chemical reactivity between alkali metals and materials underlie numerous industry challenges ranging from fireside corrosion in biomass-fired boilers to reaction with silica-based refractory ceramics in glass furnaces. The problem is particularly significant in magnetohydrodynamic (MHD) generators, where potassium or cesium compounds are introduced to improve the electrical conductivity of the working fluid. Thus, resistance to attack by alkali metal vapor is an important consideration in the selection and fabrication of ceramic electrodes and insulators for MHD generators. We evaluated several refractory ceramics to assess phase stability and known reactions with potassium and its compounds at high temperatures (T > 1,200 °C). Refractory ceramics were tested for potassium vapor corrosion using a modified ASTM standard test method with in situ monitoring of gas composition. Unlike other materials, the magnesia (MgO) and ceria (CeO2) samples did not exhibit corrosion, and no phase or mass changes were observed. This indicates that CeO2 and MgO could exhibit long lifetimes as plasma facing components in MHD generators. Ultimately, this development provides valuable data in evaluating critical materials performance issues that can attest to the viability of high temperature direct fired MHD generator applications.
Enhancing Tribological Properties of Inconel X-750 Superalloy through Surface Topography Modification by Shot Blasting
Authors: Edachery Vimal , John Aashish , Rajendran Anbukkarasi , Srinivasappa Vivek , Mathiyalagan Sribalaji , Kumar Santosh , Kailas Satish Vasu
Published: May 2021

The profound usage of Inconel X-750 in structural and high-pressure conditions mandates improved tribological properties. One of the methods to achieve this is through surface topography modifications. In this work, the viability of the shot blasting technique is explored to enhance the wear resistance of Inconel X-750. For this purpose, aluminum oxide particles with 80 mesh size were shot blasted on the superalloy surface at a constant pressure of 0.6 MPa. The 3D surface topography of Inconel X-750 alloy confirms substantial surface deformation and increased surface roughness after shot blasting. Furthermore, the surface characteristics of shot-blasted superalloy were meticulously examined using a string of techniques: optical profilometer, scanning electron microscope, and electron probe microanalysis. The tribological properties of Inconel X-750 before and after shot blasting were examined using a reciprocating tribometer with a ball-on-flat configuration. Results showed that shot blasting the superalloy has tremendously enhanced the wear resistance by ∼78%, which could be attributed to the reduced sliding contact area, enhanced surface hardness, and the hindrance in the transition of wear mechanism from abrasion tribo-oxidation to adhesion.
Involvement of Cerebellar Neural Circuits in Active Avoidance Conditioning in Zebrafish
Authors: Koyama Wataru , Hosomi Ryo , Matsuda Koji , Kawakami Koichi , Hibi Masahiko , Shimizu Takashi
Published: May 2021

When animals repeatedly receive a combination of neutral conditional stimulus (CS) and aversive unconditional stimulus (US), they learn the relationship between CS and US, and show conditioned fear responses after CS. They show passive responses such as freezing or panic movements (classical or Pavlovian fear conditioning), or active behavioral responses to avoid aversive stimuli (active avoidance). Previous studies suggested the roles of the cerebellum in classical fear conditioning but it remains elusive whether the cerebellum is involved in active avoidance conditioning. In this study, we analyzed the roles of cerebellar neural circuits during active avoidance in adult zebrafish. When pairs of CS (light) and US (electric shock) were administered to wild-type zebrafish, about half of them displayed active avoidance. The expression of botulinum toxin, which inhibits the release of neurotransmitters, in cerebellar granule cells (GCs) or Purkinje cells (PCs) did not affect conditioning-independent swimming behaviors, but did inhibit active avoidance conditioning. Nitroreductase (NTR)-mediated ablation of PCs in adult zebrafish also impaired active avoidance. Furthermore, the inhibited transmission of GCs or PCs resulted in reduced fear-conditioned Pavlovian fear responses. Our findings suggest that the zebrafish cerebellum plays an active role in active avoidance conditioning.
Intramuscular fatty infiltration and physical function in controlled acromegaly
Authors: Martel-Duguech Luciana , Alonso-Pérez Jorge , Bascuñana Helena , Díaz-Manera Jordi , Llauger Jaume , Nuñez-Peralta Claudia , Montesinos Paula , Webb Susan M , Valassi Elena
Published: May 2021

Introduction

Patients with acromegaly show musculoskeletal symptoms which may persist despite disease control. Increased i.m. fat fraction is a known cause of muscle dysfunction in several disorders.

Objective

To assess the degree of fat fraction in thigh muscles of controlled acromegaly patients and its relationship with muscle dysfunction.

Methods

In a cross-sectional study, we included 36 patients with controlled acromegaly and 36 matched controls. We assessed the percentage of fat fraction in each thigh muscle, using MRI 2-point Dixon sequence, and muscle performance and strength using the gait speed, timed up and go, 30-s chair stand, and hand grip strength tests. We evaluated joint symptoms using the Western Ontario McMaster Universities Osteoarthritis Index (WOMAC).

Results

Intramuscular fat fraction was greater in patients than controls (P < 0.05 for muscle compartments, rectus femoris (RF), vastus intermedius (VI), adductor magnus (AM) and semimembranosus). Patients had slower gait speed and poorer performance on the 30-s chair stand and timed up and go tests than controls (P < 0.05). The greater fat fraction in the combined anterior–posterior compartment and in each muscle was associated with worse performance on timed up and go (P < 0.05). The fat fraction in the anterior–posterior compartment predicted performance on timed up and go after adjusting for muscle area, IGF-I and WOMAC functional and pain scores (β = 0.737 P < 0.001).

Conclusions

Patients with controlled acromegaly have greater thigh i.m. fatty infiltration, which is associated with muscle dysfunction. Futures studies are needed to elucidate the mechanisms underlying this relationship.
Pendampingan Keterampilan Mengenali dan Mencegah Thalassemia Pada Masyarakat
Authors: Safyudin Safyudin , Sinulingga Sadakata , Fatmawati Fatmawati , Subandrate Subandrate , Haryadi Kusumo , Yana Rini , Romadhon M Fitra , Monanda M Dias Athallah
Published: May 2021

Abstract:Thalassemia is a genetic disease that is inherited through marriage. At present, the incidence of thalassemia can only be reduced by reducing the birth of thalassemia children. Giving a correct understanding to the community is the right way to prevent the increase in new thalassemia sufferers. This community service activity is carried out in Lubuklinggau City, South Sumatra by involving lecturers who focus on the prevention of thalassemia. Activities carried out in the form of counseling and demonstration about thalassemia to 56 participants. In this activity, the demonstration was carried out using tools such as brochures / leaflets. An evaluation of the success of the activity is carried out using random questions to the participants before and after the activity. After counseling, most participants understood the simple way to recognize and prevent thalassemia. From these community service activities, it can be concluded that counseling and demonstration, can be used to improve people's knowledge and simple skills in recognizing and preventing thalassemia. Keywords:  Counseling, prevent, recognize, thalassemia Abstrak: Thalassemia merupakan penyakit genetik yang diturunkan melalui perkawinan. Saat ini, angka kejadian penyakit thalassemia hanya dapat turunkan dengan cara mengurangi kelahiran anak thalassemia. Pemberian pemahaman yang benar kepada masyarakat merupakan cara yang tepat guna mencegah peningkatan penderita thalassemia baru. Kegiatan pengabdian masyarakat ini dilakukan di Kota Lubuklinggau, Sumatera Selatan dengan melibatkan dosen yang fokus pada usaha pencegahan thalassemia. Kegiatan yang dilakukan berupa penyuluhan dan demonstrasi tentang thalassemia terhadap 56 orang peserta. Dalam kegiatan ini, demontrasi dilakukan dengan menggunakan alat bantu berupa brosur/leaflet. Evaluasi terhadap keberhasilan kegiatan dilakukan dengan menggunakan pertanyaan acak kepada peserta sebelum dan sesudah kegiatan. Setelah penyuluhan, sebagian besar peserta memahami cara sederhana mengenali dan mencegah thalassemia. Dari kegiatan pengabdian masyarakat ini, dapat simpulkan bahwa penyuluhan dan demonstrasi, dapat digunakan untuk meningkatkan pengetahuan dan keterampilan sederhana masyarakat dalam mengenali dan mencegah thalassemia. MIOS. Kata Kunci: Mencegah, mengenali, penyuluhan, thalassemia
Model Pembelajaran Predict, Observe, Explain (POE) Terhadap Keterampilan Proses Sains Siswa Pada Materi Larutan Elektrolit dan Nonelektrolit
Authors: Mutiyah Citra , Irawan Dedi , Bahriah Evi Sapinatul
Published: May 2021

Abstract:This study aims to determine the effect of Predict, Observe, Explain (POE) learning models on students' science process skills on electrolyte and non-electrolyte solution materials. The subjects in this study were students of class X at SMA Negeri 89 East Jakarta in the academic year 2013/2014. The research method applied was a quasi-experimental design with nonequivalent control group design. Samples were taken by purposive sampling and divided into 2 groups, namely the experimental group and the control group. The instruments used in this study were essay test instruments and observation sheets. Data analysis techniques were obtained using the "t" test. The results showed that the use of Predict, Observe, Explain (POE) learning models had an influence on students' science process skills in electrolyte and non-electrolyte solution materials. Keywords:  learning model of Predict, Observe, Explain (POE); Science process skills; Electrolyte and Non-electrolytes solution      Abstrak:Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Predict, Observe, Explain (POE) terhadap keterampilan proses sains siswa pada materi larutan elektrolit dan nonelektrolit. Subyek dalam penelitian ini adalah siswa kelas X di SMA Negeri 89 Jakarta Timur tahun ajaran 2013/2014. Metode penelitian yang diterapkan adalah kuasi eksperimen dengan desain nonequivalent control group design. Sampel diambil secara purposive sampling dan dibagi 2 kelompok, yaitu kelompok eksperimen dan kelompok kontrol. Instrumen yang digunakan dalam penelitian ini adalah instrumen tes essay dan lembar observasi. Teknik analisis data diperoleh menggunakan uji “t”. Hasil penelitian menunjukkan bahwa penggunaan model pembelajaran Predict, Observe, Explain (POE) memberikan pengaruh terhadap keterampilan proses sains siswa pada materi larutan elektrolit dan nonelektrolit. Kata Kunci: Keterampilan proses sains; Larutan elektrolit dan nonelektrolit; Model pembelajaran Predict, Observe, Explain (POE).
Effect of a complex prebiotic preparation on the preservation, growth intensity and microflora in rabbits intestine
Authors: Lyasota V.P. , Bakhur T.I. , Utechenko M.V.
Published: May 2021

We presented the effect of prebiotic "Bio-active" on preservation, increase of the body weight, the microflora composition in the distal small intestine, histological examination of the intestinal wall and liver of rabbits gray giant breed 45 days aged. Prebiotic "Bio-active" contains products of metabolism of lactic acid bacteria Lactobacillus bulgaricus delbrueckii adsorbed on zeolite. Our results proved the safety of this prebiotic for the rabbits. Optimal scheme for oral administration of the prebiotic was 2.0 g per 1 kg of body weight for 30 days. Such a course provided 95% of animal preservation and increase in the weight gain of the experimental animals, an average of 43.1% compared with the non-treated rabbits. In scarifies of distal intestine in 20% of animals that received the prebiotic and in 100% of those who did not receive it, Bacteria of Proteus genus have been detected. After the course of prebiotic we registered an increased number of Enterobacteriaceae (4.5–6.0 × 108 CFU) and Bifidobacteria (8 × 107–108 CFU) in rabbits’ intestines. We also mentioned the enhanced gram-positive/gram-negative ratio with a predominance of gram-positive (1:1.17 against 1:2.9 in control group). In case of prebiotic usage, the stimulation of goblet cells’ development was determined in the small intestine walls. Almost 100% of rabbits, who did not receive the prebiotic, had dystrophic changes in hepatocytes (74.5 % of the animals had fatty hepato-dystrophy and 25 % had protein granular dystrophy). We registered that only 25% of the animals had fatty hepato-dystrophy and 15% had protein granular dystrophy among those, which received the preparation.
Effect of fertilization on the chemical composition and quality of cereal grasses fodder with different ripeness
Authors: Karbivska U.M. , Butenko A.O. , Kandyba N.M.
Published: May 2021

The influence of fertilization on chemical composition and quality of fodder from cereal grasses has been studied. It was found that the highest indices of crude protein were observed in the variant with Dactylis glomerata and Lolium perenne 11.2-11.4%, which is 0.9-1.1% more than Phalaris arundinacea. When applying phosphorus-potassium fertilizers, the crude protein content increased by 0.1-0.2%, and with complete fertilization - 4.2-4.4%. On average, over the years of research, a grass factor was influential on the yield of 1 ha of dry mass with a share of 36%. Meanwhile, the share of fertilizer factor was 64%.
Homeostasis indicators in cows before ostrus synchronization and their influence on the fertilization rate
Authors: Kraevsky A.Y. , Sokoluk V.M. , Chekan O.M.
Published: May 2021

The relationship between cows' homeostasis in the early postpartum period and the effectiveness of fertilization during lactation was analyzed. There were found a decrease in vitamin E to 3.9 ± 0.16 μg/ml, an increase in urea to 6.4 ± 0.24 mmol/l, alkaline phosphatase to 120.7 ± 5.24 U/l, urea nitrogen to 12.3 ± 0.46 mg/ 100 ml and aspartate aminotransferase up to 137.8 ± 10.45 IU/l in cows that were culled or left infertile throughout the lactation period. These data may indicate an overload of the compensatory reactions of the enzymatic and oxidative systems of the liver in cows with defective rumen digestion. There was also persistent hyperproteinemia with compensated oxidative stress due to a decrease in zinc and vitamin E content in cows fertilized 60-120 days compared with those fertilized six months and later after calving.
The impact of lateral localization of the procedure on the effectiveness of transplations of pre-implantation embryos in heifers-recipient
Authors: Roman L. , Sidashova S. , Popova I.
Published: May 2021

The article presents the results of a study of the efficiency of transcervical embryo transplantation obtained from donor- cows in vivo. The aim of the experiment was to compare the effectiveness of ipsilateral transfers randomized laterally from the uterine horn of embryos of different stages of development (blastocysts and morulas). The embryos were located in the left or right horn of the uterus of recipient heifers (n = 283 cows). It was experimentally established that the functional asymmetry of the ovaries of the recipients affects the level of survival of preimplantation embryos. Thus, in case of transfer to the left horn of the uterus of the recipients blastocysts 60.91% of pregnant heifers were found; morulas - 45.45%. In case of similar procedures in the right horn of the uterus - were found respectively 58.78% and 14.29% pregnant. The obtained results indicate the need for further scientific research to study the structural and physiological features that affect the survival rate of pre-implantation embryos.
Assessment of area tourist-recreational potential with honey palinological research
Authors: Nenasheva G.I. , Kozyreva Y.V.
Published: May 2021

The article summarized an experience of analysis of the development of ideas in the methodological sphere of recreational geography in connection with the problem of studying the quality of the human environment. And also due to the active development of rural tourism and increased interest in food quality, the most important of which is honey. We applied the generally accepted methods for assessing the tourist and recreational potential of the territory and the results of additional melissopalinological analysis on the example of the Charysh district of the Altai region. An expanded approach in assessing tourism and recreational potential is important for the development of rural tourism, interested administrative and economic entities to create coordinated decisions on the economic development of the Altai region.
The response of invertebrate communities to a moisture gradient in artificial soils of Ukrainian steppe arid zone
Authors: Babchenko A.V. , Fedushko M.P. , Timchiy E.I.
Published: May 2021

Animals were sampled within the experimental area using traps to investigate the spatial and temporal variation in abundance, species richness, and species composition of invertebrate communities. A total of 60 traps were operated simultaneously during each sampling period. Traps were emptied 26 times every 7-9 days each year. Plant water availability, precipitation, wind speed, air temperature (minimum, maximum, daily mean), air humidity, and atmospheric pressure were used as ecological predictors of invertebrate community status and structure. Two-dimensional geographic coordinates of sampling locations were used to create a set of orthogonal spatial variables based on eigenvectors. We used time series of sampling dates to produce a set of orthogonal eigenvector time variables. The moisture content in technosols was the most important factor determining the terrestrial invertebrate community's temporal dynamics under semi-arid climate and reclaimed ecosystem conditions. Each ecological group of terrestrial invertebrates is homogeneous in terms of moisture gradient (xerophilic, xerozoophilic, mesophilic) and has a specific set of patterns best explain the species response to water content in technosols. However, one should consider the fact that the species response to soil water content is influenced not only by soil water content but also by a complex of other environmental, temporal and spatial factors. That is why the effect of other factors on the species response must be extracted previously to find real estimations of the species optima and tolerance. This task can be solved using the constrained correspondence analysis (CCA) or constrained redundancy analysis (RDA) depending on the type of response to ecological factors prevailing in the community – monotone or unimodal. We found that in more dry conditions, the prevalent species responses are unimodal asymmetric, in moister – bimodal, and in moderate conditions, the distributions are symmetric unimodal. The asymmetric species response to soil moisture in different parts of the soil humidity range may be assumed as predominantly due to the abiotic factors in the gradient's aridest margin and due predominantly to the biotic factors in the most humid margin of the gradient.
The Past and (Post-COVID) Future of Dual Citizenship
Authors: Spiro Peter J.
Published: May 2021

Dual citizenship was once the bane of states and individuals. Today, a clear majority of states accept the status and it has become commonplace. The shift reflects changes in the nature not only of national identity but also of the individual’s relationship to the state and to the world. States have almost no remaining incentive to police dual citizenship at the same time that individuals often have incentives, sometimes substantial ones, to secure it. This chapter first recounts how dual citizenship came to be normalised. It then considers how the COVID pandemic might impact on dual-citizenship opportunity structures. Although COVID may diminish the instrumental value of dual citizenship for purposes of third-country mobility privileges, it highlights the core benefit of admission rights into the country of additional nationality. Dual citizenship now becomes a kind of global health insurance as well as a way to protect mobility rights, even for those already holding premium passports. For transnational elites, these newly surfaced advantages will magnify incentives to secure investment citizenship. Others will be motivated to avail themselves of ancestral and other forms of strategic citizenship. States, meanwhile, are unlikely to see serious new costs to pre-COVID citizenship practices. Demand for dual citizenship is thus likely to rise while remaining broadly available.
A new record of Ascidiella scabra (Müller, 1776) (Ascidiacea, Phlebobranchia) in the southwestern Atlantic
Authors: Giménez Diego R. , Taverna Anabela , Meloni Marco , Correa Nancy , Sylvester Francisco , Tatián Marcos
Published: May 2021

Non-indigenous ascidians are transported across oceans in vessel-hull fouling communities, and regional traffic plays a role in their secondary spread. We found the ascidian Ascidiella scabra (Müller, 1776) in the hull-fouling community of an oceanographic vessel confined to waters of the southwestern Atlantic and Southern Oceans. The previously known distribution of this species was restricted to its native area (Mediterranean Sea and northeastern Atlantic); its presence in the southwestern Atlantic may have been masked in the past by the occurrence of its congener Ascidiella aspersa (Müller, 1776).
Dakwah Tuan Guru Baba Abdulkarim bin Hasbullah Naknawa
Authors: Salaeh Miss Yamilah , Shodiqin Asep
Published: May 2021

This study aims to obtain a factual description in the form of an explanation of the mission of Mr. Guru Baba Abdulkarim. This research was conducted at Pondok Dala Islamic Boarding School in Pattani. Data collected through involed observations, in-depth interview and literature. Data analysisi is carried out inductively through interpretation of information related to social context. In this study explained that the master of the Baba theacher has a variety of methods and matrials in delivering his message. Among the tabligh methods used by maters Baba is the lecture method, the question and answer method, discussion method, halaqah method and exemplary method. The result of this study that the teacher has a different tabligh method and have different material depending on how the condition of the community, so that the theme delivered can also be in accordance with the circunstances at that time. Jema’ah tabligh a good response to tabligh Mr. Baba, so that every time there is a recitation of the Mr. Baba, the pilgrims come in droves from all over the region.

Tulisan ini bertujuan untuk memperoleh gambaran factual berupa penjelasan tentang dakwah Tuan Guru Baba Abdul Karim Bin Hasbullah Naknawa, penelitian ini dilakukan di Pesantren Pondok Dala di Pattani, penelitian ini menjelaskan tentang bagaimana proses dan cara dakwah Tuan Guru Baba. Tulisan ini dilakukan dengan cara metode kualitatif dan data diambil secara purposif. Data dikumpulkan melalui observasi terlibat, wawancara mendalam dan kepustakaan. Analisis data dilakukan secara induktif melalui interpretasi informasi dihubungkan dengan konteks social. Dalam tulisan ini dijelaskan bahwa Tuan Guru Baba memiliki berbagai macam metode dan materi dalam menyampaikan dakwahnya, diantara metode tabligh yang digunakan oleh Tuan Guru Baba adalah metode ceramah, metode tanya jawab, metode diskusi, metode halaqah dan metode keteladanan. Hasil penelitian ini bahwa Tuan Guru Baba memiliki metode tabligh yang berbeda – beda dan memiliki materi tabligh yang berbeda pula tergantung bagaimana kondisi masyarakat sehingga tema yang disampaikan bisa sesuai dengan keadaan pada waktu itu. Jema’ah tabligh juga memberikan respon yang baik terhadap tabligh Tuan Guru Baba, sehingga setiap kali ada pengajian Tuan Guru Baba maka para jema’ah datang berbondong – bondong dari seluruh wilayah.
Pola Tabligh Ustadz Cinta Pemuda di Kalangan Remaja Masjid Agung Kota Sukabumi
Authors: Angelia Rima , Muhyiddin Asep , Sukayat Tata
Published: May 2021

This study aims to find out and describe the Tabligh Pattern of Ustadz Cinta, which includes concepts, methods, media, and the content of the messages discussed in the Mahbbah Assembly study in the Great Mosque of Sukabumi City. The method used is descriptive method, the type of data used in this study is a type of qualitative data, data collection techniques using observation techniques, interview techniques, and using documentation techniques. The results can be seen that the tabligh pattern used by the religious teacher in the Mahabbah Assembly study is four, namely: concepts, media, message content, and methods used. the concept can provide new innovations in conveying tabligh khitobah, in terms of the content of the message which has the theme of love, the methods used include lectures, discussion / question and answer, and muhasabah, the media uses modern tools that is using laptops, infokus, pulpit, and mic.

Penelitian ini bertujuan untuk mengetahui dan menggambarkan Pola Tabligh Ustadz Cinta, yang meliputi konsep, metode, media, dan  isi pesan yang di bahas dalam kajian Majelis Mahbbah di Masjid Agung Kota Sukabumi. Metode yang dipakai adalah metode deskriptif, Jenis data yang digunakan dalam penelitian ini adalah jenis data kualitatif, teknik pengumpulan data menggunakan teknik observasi, teknik wawancara, dan menggunakan teknik dokumentasi. Hasilnya dapat diketahui bahwa pola tabligh yang dipakai oleh ustadz cinta dalam kajian Majelis Mahabbah ada empat, yaitu: konsep, media, isi pesan, dan metode yang digunakan. konsep dapat memberikan inovasi baru dalam menyampaikan tabligh khitobah, dari segi isi pesannya yang meimiliki tema tentang cinta, metode yang digunakan diantaranya ceramah, diskusi/tanya jawab, dan muhasabah, medianya menggunakan alat yang modern yaitu dengan menggunakan laptop, infokus, mimbar, dan mic.