bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploring coproduction process and outcomes in public service delivery: A systematic review
Authors:   Department of Public Administration, Jiangsu Administration Institute, Nanjing 210009, China, Tu Xuan
Published: February 2022

This article examines the critical factors and outcomes of coproduction in public service delivery. Three research questions are posed: What is the role of citizens in coproduction? What are the critical factors of coproduction? What are the outcomes of coproduction? The study aims to contribute to a deeper understanding of the impact of coproduction by undertaking a systematic review. Traditional academic reviews are departed by examining policy and practice evidence that is drawn from 56 worldwide cases. Outcomes are identified that mainly concern the enhanced capacity of both organizations and individual participants, improved effectiveness of services, increased citizen engagement and citizen satisfaction. Evaluation of our review evidence is used to articulating a coproduction model that can inform theoretical developments in advancing coproduction research. In summary, it is suggested that coproduction can be a viable strategy in public services depending on the conditions and circumstances of the context. Implications and future research agenda are provided in conclusion.
A System to Determine the Effect of Change Order for Roads Projects on Execution Time
Authors: Khuder Saif Saad Mohammed , Ibrahim Abdul Rahman Adnan , Eedan Osama Abd Al- Ameer
Published: February 2022

The current study aims to create a computer program estimates the time required to complete the additional work due to the change command by evaluating the cost of these works. A  set of mathematical formulas and arithmetic equations are utilized for programing purposes. Furthermore, the difference of time due to the change order (Y), which was calculated  depending on the cost of these works (X). Furthermore these equations were developed by statistical analysis of the data collected from change orders for roads in Salah al-Din Governorate.  Then the program was verified and valuated by a group of engineers through making a survey.  Briefly the practical benefit of the program was very good, with a recurrence rate of (50%) based on the evaluation of these engineers. The benefit of using the program in future projects was good, with a recurrence rate of (49.8%).

Also, the most frequent works in change orders for road projects at Salah al-Din Governorate has specified and concluded. It was found that the works of operating and cleaning roads were repeated at a rate of (30%) in the change orders. Moreover, the earthworks were repeated at a rate of (20%), and the drainage works repeated at a rate of (20%). These results are used to focus on these works when preparing schedules of quantities for future projects to avoid errors in estimating quantities and the problem of increasing time and cost resulting from change orders of these projects.
PENGARUH PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAMS GAMES TOURNAMENT (TGT) TERHADAP HASIL BELAJAR PESERTA DIDIK PADA MATA PELAJARAN EKONOMI DI MAN 2 KOTA TASIKMALAYA
Authors: Tari Hernata Diana , Suwirta Utty , Dedeh Dedeh
Published: February 2022

Permasalahan yang diangkat dalam penelitian ini adalah rendahnya hasil belajar. Deperti kita ketahui, hasil belajar merupakan salah satu tolak ukur keberhasilan proses pembelajaran. Peneliti berasumsi bahwa dengan diterapkannya model pembelajaran Kooperatif tipe Times Games Tournament akan mempengaruhi peningkatan hasil belajar peserta didik. Rumusan masalah dalam penelitian ini yaitu: 1). Apakah terdapat peningkatan hasil belajar peserta didik yang menggunakan model pembelajaran kooperatif tipe Teams Games Tournament (TGT) pada pengukuran awal (pretest) dan pengukuran akhir (posttest) ? 2). Apakah terdapat peningkatan hasil belajar peserta didik yang menggunakan metode ceramah (konvensional) pada pengukuran awal (pretest) dan pengukuran akhir (posttest) ? 3). Apakah terdapat perbedaan hasil belajar peserta didik yang menggunakan model pembelajaran Teams Games Tournament (TGT) dengan hasil belajar peserta didik yang menggunakan metode ceramah (konvensional) pada pengukuran awal (pretest) dan pengukuran akhir (posttest) ?. Adapun tujuan penelitian ini yaitu: 1). Peningkatan hasil belajar peserta didik yang menggunakan model pembelajaran kooperatif tipe Teams Games Tournament (TGT) pada pengukuran awal (pretest) dan pengukuran akhir (posttest). 2). Peningkatan hasil belajar peserta didik yang menggunakan metode ceramah (konvensional) pada pengukuran awal (pretest) dan pengukuran akhir (posttest). 3). Perbedaan hasil belajar peserta didik yang menggunakan model pembelajaran Teams Games Tournament (TGT) dengan hasil belajar peserta didik yang menggunakan metode ceramah (konvensional) pada pengukuran awal (pretest) dan pengukuran akhir (posttest). Metode penelitian yang digunakan yaitu metode eksperimen tipe Quasi Eksperimen Design. Berdasarkan hasil penelitian menunjukkan bahwa terdapat perbedaan hasil belajar peserta didik pada mata pelajaran ekonomi kelas X MIPA di MAN 2 Kota Tasikmalaya. Kata Kunci:  Pembelajaran Kooperatif Teams Games Tournament, Pembelajaran Konvensional
PENGARUH MODEL PEMBELAJARAN DISCOVERY LEARNING BERBASIS LKS TIPE WORD SQUARE TERHADAP KETERAMPILAN BERPIKIR KRITIS SISWA
Authors: Rahman Lala Laura , Rusyana Adun , Yulisma Lia
Published: February 2022

Pembelajaran yang berlangsung secara kaku dan bersifat teacher centered mengakibatkan siswa menjadi tidak aktif selama pembelajaran. Padahal, untuk meningkatkan kemampuan berpikir tingkat tinggi siswa yang salah satunya adalah kemampuan berpikir kritis, diperlukan pembelajaran yang bersifat student centered. Tujuan penelitian ini adalah untuk mengetahui pengaruh model pembelajaran discovery learning berbasis LKS tipe word square terhadap keterampilan berpikir kritis siswa SMA pada submateri pencemaran lingkungan. Waktu penelitian berlangsung pada bulan april 2020. Populasi penelitian ini adalah siswa-siswi kelas X IPA MAN 2 Ciamis. Sampel yang digunakan melibatkan siswa kelas X IPA 1 sebanyak 25 orang yang dipilih menggunakan  teknik purposive sampling. Penelitian ini menggunakan metode Pra-eksperimen design dengan jenis One Group Pretest-Posttest Design. Instrumen yang digunakan adalah soal berpikir kritis yang berjumlah 20 soal pilihan ganda. Data yang diperoleh dari soal diolah secara statistik dengan menggunakan uji Z. Hasil penelitian menunjukan bahwa Zhitung > Ztabel yaitu sebesar 3,00 > 2,33. Hasil temuan tersebut  membuktikan bahwa penerapan model pembelajaran discovery learning berbasis LKS tipe word square berpengaruh terhadap keterampilan berpikir kritis siswa SMA pada submateri pencemaran lingkungan dengan tingkat pengaruh tinggi yaitu sebesar 0,76.Kata Kunci: Discovery learning, Keterampilan Berpikir Kritis, LKS word square
PEMBELAJARAN SEJARAH CONTEXTUAL TEACHING AND LEARNING SITUS JAMBANSARI DENGAN METODE EKSKURSI DI SMA INFORMATIKA CIAMIS
Authors: Herdianti Dini , Wijayanti Yeni , Sondarika Wulan
Published: February 2022

Penelitian ini menghasilkan kesimpulan bahwa implementasi pembelajaran sejarah di SMA Informatika selama ini menggunakan media powerpoint dan VCD, peserta didik juga ditugaskan menulis karya ilmiah yang di persentasikan. Pembelajaran CTL dengan metode ekskursi di SMA Informatika Ciamis yaitu dengan Ekskursi Budaya dan Wisata. Hasil yang dicapai dalam pembelajaran adalah meningkatkan pemahaman, terampil menggali sumber dan kepudulian terhadap lingkungan sosial budaya. Dengan demikian pembelajaran sejarah CTL dengan metode Ekskursi dalam memanfaatkan situs Jambansari menjadi alternatif untuk terciptanya pembelajaran sejarah yang lebih bermakna, meningkatkan kualitas pembelajaran dan pendidikan nasionalKata Kunci : Pembelajaran Sejarah, Contextual Teaching and Learning, Ekskursi,     situs Jambansari
ANALISIS KEMAMPUAN PENALARAN MATEMATIS BERDASARKAN GAYA BELAJAR SISWA
Authors: Fauziah Novia , Sunaryo Yoni , Ruswana Angra Meta
Published: February 2022

Penelitian ini bertujuan untuk memperoleh gambaran mengenai kemampuan penalaran matematis berdasarkan gaya belajar siswa. Penelitian ini merupakan penelitian deskriptif kualitatif dengan metode studi kasus.Objek pada penelitian ini adalah siswa kelas VIII di salah satu Madrasah Tsanawiyah daerah Ciamis Kecamatan Baregbeg sebanyak sembilan orang.Pengumpulan data menggunakan angket, tes tertulis dan wawancara. Hasil penelitian menunjukkan bahwa siswa dengan gaya belajar tipe visual yang memiliki kemampuan penalaran tinggi, sedang dan rendah dapat menyelesaikan soal penalaran matematis yang diberikan, dengan hambatan kurangnya ketelitian, terpengaruh oleh rekan. Siswa dengan gaya belajar auditori dan memiliki kemampuan penalaran tinggi, sedang dan rendah dapat menyelesaikan soal penalaran matematis yang diberikan, dengan hambatan siswa lebih tertarik jika menyelesaikan soal dengan cara berdiskusi. Siswa dengan gaya belajar kinestik dan memiliki kemampuan penalaran tinggi, sedang dan rendah dapat menyelesaikan soal penalaran matematis yang diberikan, dengan hambatan siswa merasa bosan jika terus-menerus belajar di kelas, kurang minat terhadap mata pelajaran matematika dan tidak bisa diam sehingga waktu yang diberikan untuk mengerjakan soal banyak terbuang. Kata Kunci :Kemampuan Penalaran, Gaya Belajar
PENGARUH MODEL SELF DIRECTED LEARNING TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN EKONOMI
Authors: Sidmewa Ajeng Ayu Novelia , Susanti Yuyun , Putra Rizka Andhika
Published: February 2022

Rendahnya hasil belajar merupakan masalah dalam penelitian ini, karena hasil belajar merupakan salah satu tolak ukur keberhasilan proses pembelajaran, maka pendidik dituntut untuk segera mencari berbagai upaya untuk mencapai keberhasilan, rendahnya hasil belajar dilatarbelakangi oleh berbagai faktor diantaranya pemilihan model pembelajaran yang tepat digunakan oleh pendidik, Model Pembelajaran Mandiri pada pengukuran akhir. Metode penelitian yang digunakan adalah metode eksperimen desain Quasi Eksperimental Nonequivalent Control Group Design dengan menggunakan rumus N-Gain = (skor posttest – skor pretest) dibagi dengan (skor maksimum –skor pretest), sedangkan untuk mengukur perbedaan hasil belajar peserta didik menggunakan uji t. Berdasarkan hasil penelitian yang telah dilakukan, maka dapat diketahui: Terdapat perbedaan hasil belajar peserta didik yang 1) menggunakan model pembelajaran Mandiri pada pengukuran awal sebesar 32,5 dan pengukuran akhir sebesar 87,75 dengan pengukuran awal (pretest) sebesar 32 dan pengukuran akhir (posttest) sebesa r 82,4 dengan rata-rata N-Gain bernilai 0,73 dengan kategori tinggi. 3) mendapatkan model pembelajaran Mandiri (Self Directed Learning)dengan yang menggunakan model pembelajaran konvensional (rata-rata N-Gain bernilai 0,82 dengan kategori tinggi. 2) mendapatkan model pembelajaran konvensional pada ceramah) pada pengukuran akhir (posttest) berdasarkan uji t-test diperoleh thitung >
MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MELALUI MODEL PEMBELAJARAN PAIKEM TIPE DIRECT INSTRUCTION
Authors: Nuryanti Eva , Heryati Tati , Ilah Ilah
Published: February 2022

Rendahnya kemampuan berpikir kritis peserta didik merupakan permasalahan yang dihadapi dunia pendidikan (sekolah)  karena faktor ini merupakan salah satu hal yang mengakibatkan rendahnya hasil belajar,atas dasar itulah yang melatar belakangi penelitian ini ,  salah satu upaya untuk meningkatkan kemampuan berpikir kritis dalam rangka meningkatkan hasil belajar yaitu dengan memilih model pembelajaran dengan tipe pembelajaran yang tepat. Tujuan dari penelitian ini untuk mengetahui 1) peningkatan hasil belajar dengan menerapkan model pembelajaran PAIKEM tipe Direct 2) peningkatan hasil belajar dengan menerapkan metode konvensional 3) peningkatan hasil belajar yang menerapkan model PAIKEM tipe Direct Intruction dengan metode konvensional. Penelitian ini menggunakan metode eksperimen (quasi eksperimental ) dengan desain nonequivalentt  qontrol group desain dengan analisis data uji t. Penelitian ini menyimpulkan hasil belajar yang menerapkan  model pembelaajran PAIKEM Tipe Direct Instruction lebih tinggi dibanding dengan metode konvensioanl.Kata kunci:  Direct Instruction, Kemampuan Berpikir Kritik
PENGARUH MODEL PROBLEM BASED LEARNING MELALUI CLASSROOM TERHADAP KETERAMPILAN BERPIKIR KRITIS SISWA PADA SUB MATERI PENCEMARAN LINGKUNGAN DI SMA NEGERI 1 KAWALI
Authors: Novianti Rika , Rusyana Adun , Yulisma Lia
Published: February 2022

Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model Problem Based Learning melalui aplikasi Google Classroom terhadap keterampilan berpikir kritis siswa. Metode yang digunakan dalam penelitian ini adalah metode Quasi Eksperimen Design. Desain penelitian yang digunakan yaitu one group pretest-posttest design. Populasi penelitian yaitu siswa kelas X SMA Negeri 1 Kawali yang berjumlah 216 siswa. Sample penelitian ini adalah kelas X IPA 1 dengan jumlah 36 siswa, teknik pengambilan sample secara purposive sampling. Instrumen yang digunakan berupa tes keterampilan berpikir kritis, dengan mengacu pada indikator berpikir kritis menurut Piaw yaitu inferensi, mengenal asumsi, dan interpretasi. Data yang diperoleh diolah secara statistik. Hasil perhitungan uji Z (α = 5% ) pada nilaii gain diperoleh nilai z hitung sebesar 1,92>1,64. Kesimpulan yang diperoleh adalah penerapan Model Problem Based Learning melalui Google Classroom terhadap keterampilan berpikir kritis siswa pada sub Materi Pencemaran Lingkungan di SMA Negeri 1 Kawali berpengaruh terhadap keterampilan berpikir kritis siswa.Kata kunci : PBL, Keterampilan Berpikir kritis, Google Classroom
Implementação da monitoria remota em anestesiologia durante a pandemia da COVID-19: interface, contribuições e aprendizado
Authors: Resende Marco Antonio Cardoso de , Videira Rogerio Luiz da Rocha , Costa Ana Carolina Fortes Bastos da , Silva Laís Sales Freire , Rodrigues Manoel Fernando de Oliveira , Assad Alexandra Rezende
Published: February 2022

Objetivo: Descrever a implementação da monitoria online em módulo de anestesiologia, com uso de tecnologia da informação e comunicação por meio de atividades remotas durante a pandemia de COVID-19. Relato de experiência: Trata-se de estudo descritivo na modalidade relato de experiência com vivências de docentes e discentes de medicina de uma universidade no estado do Rio de Janeiro, após a interrupção das aulas presenciais, e seu impacto no processo de ensino-aprendizagem. A dinâmica metodológica contemplou atividades assíncronas, com postagem de artigos, capítulos de livros, estudo dirigido, aulas gravadas no Google Sala de Aula, vídeos curtos de procedimentos, e síncronas online na semana seguinte com cada tema. Como forma de registrar as percepções e repensar atividades futuras foi aplicado questionário semiestruturado para professores e alunos. As expectativas pedagógicas da disciplina e interação com os alunos foram atendidas plenamente de acordo com cinco professores e parcialmente por quatro, enquanto 78,9% dos alunos tiveram suas expectativas atendidas. Considerações finais: Apesar de nenhum dispositivo tecnológico ser capaz de suprir a necessidade de interação presencial no ensino médico, a monitoria online foi fundamental por atuar como facilitadora, estabelecendo pontes na interface docente–discente.
ANALISIS PEMASARAN DAN STRATEGI PENGEMBANGAN USAHATANI UBI KAYU DI KELURAHAN BALAI RAJA KECAMATAN PINGGIR KABUPATEN BENGKALIS PROVINSI RIAU
Authors: Rian Saputra  , Fahrial
Published: February 2022

Balai Raja Village is one of the centers of cassava production in Pinggir District of Bengkalis Regency in Riau Province with production of 35 tons/ha. This research aims to find out and analyze the characteristics of farmers and traders of cassava, the marketing channels and institutions, marketing costs, marketing margin, marketing profits, farmer's share, and marketing efficiency of cassava farm business, and the cassava farming business development strategy. This study was used survey method during for 6 (six) months from July to December 2020. The results showed that the farmers was still productive life, the level of education of farmers was relatively low, namely junior high school graduation, the average length of experience was 4 years, and the number of farmers' families was 3 people. The average age of cassava traders was still productive life, the level of education of trader was relatively high, namely high school graduation, the average experience was 5 years, and the number of family member was 3 people. The marketing channel had only 1 marketing channel, namely farmer-trader - tapioca factory. Marketing cost was IDR 155/kg, marketing margin was IDR 200/kg, marketing net margin was IDR 45/kg, farmer's share was 75%.  Marketing efficiency was 19.37%.  The results of the analysis of the cassava farming business development strategy in the village of Pinggir district of Bengkalis Regency was in quadrant 1, namely the S-O.  The alternative strategy obtained was based on the S-O strategy, namely the availability of land and skilled labor.   It can meet the increasing demand for cassava production.  By using superior wood seedlings and government support in providing extension, it can be expanded due to the development of cassava processing industry.
PEMETAAN KETAHANAN PANGAN BERDASARKAN ASPEK KETERSEDIAAN PANGAN DI KOTA PEKANBARU PROPINSI RIAU
Authors: Sisca Vaulina  , Sri Ayu Kurniati  , Sri Mulyani
Published: February 2022

Food availability is food available from natural sources either through food production, cultivating the land, or by other of obtaining food, such as fishing or gathering food. Food availability is important and a priority for food security in Pekanbaru City. The purpose of this research is to map food security based on the aspect of food availability in Pekanbaru City. This research was conducted using the literature study method, used secondary data. Data analysis using FSQ (Food Security Quotient). The results of the study, using calculation of Food Security Quotient (FSQ) in Pekanbaru City, for variables of production and harvested area with a category is very food safe, the commodity is soybeans. Variable food needs, commodities with very safe categories are rice; sweet potato; and peanuts. The aspect of food availability in Pekanbaru City is included in category point V, which is very food safe. The food availability index in Pekanbaru City is a very food-secure condition.
DAFTAR ISI EDISI DESEMBER 2021
Authors: Jurnal Dinamika Pertanian
Published: February 2022

Daftar Isi
Evaluating in-vitro antioxidant and in-silico anti-inflammatory potential of Diosgenin
Authors: Manobharathi V. , Kalaiyarasi D. , Mirunalini S.
Published: February 2022

Chronic diseases are inextricably tied up with oxidative stress and inflammatory responses. Oxidative stress triggers an antioxidant imbalance that elicits a multitude of inflammatory reactions, inevitably culminating in death-causing diseases by integrating free radicals. Rising research approaches intensely focus on identifying natural antioxidants with efficient anti-inflammatory potency. Diosgenin is a potent bioactive therapeutic candidate spotted in Fenugreek and Yams and has varied pharmacological properties. Concerning the therapeutic importance of this compound, the current study intends to explore its antioxidant and anti-inflammatory potential. The antioxidant ability of diosgenin was tested by using free radical scavenging assays such as 1,1-diphenyl-2- picrylhydrazyl radical (DPPH), 2, 2’-Azinobis-(3-ethyl benzothiazoline-6-sulfonic acid) (ABTS●+), Hydroxyl radical and Superoxide anion. Furthermore, the screening of Diosgenin’s anti-inflammatory potential was done by ligand interactions via Autodock software to explore its binding affinity with inflammatory receptors (NF-κB and TNF-α). On comparing this with standard ascorbic acid, Diosgenin has nearly equivalent IC50 values. The IC50 values of Diosgenin and Ascorbic acid were found to be 48.24 μg/mL and 47.93 μg/mL (DPPH), 41.18 μg/mL and 40.19 μg/mL (ABTS●+), 50.14 μg/mL and 48.99 μg/mL (Hydroxyl radical), 44.33 μg/mL and 50.02 μg/mL (Superoxide anion). Additionally, Diosgenin has good binding scores (-7.7, -9.8 kcal/mol) with target inflammatory receptors (NF-κB and TNF-α). In-vitro and in-silico modeling proves that diosgenin has effectively high antioxidant and antiinflammatory potency. Hereby, diosgenin seems to be a promising antioxidant against inflammatory diseases.
Role of Tannase in Chronic Diseases: A review
Authors: . Priya , Selwal Krishan Kumar , Selwal Manjit , Nirvan Harsha , Deswal Garima
Published: February 2022

Tannase is an inducible and extracellular microbial enzyme that hydrolyses the ester and depside linkages of tannic acid in hydrolysable tannins to release glucose, gallic acid, ellagic acid and propyl gallate. Tannase or tannin acyl hydrolase is an enzyme and has several applications in the field of science and technology. It is produced by different bacteria like lactobacillus, staphylococcus aureus, yeast and majorly by fungi. Due to its hydrolytic properties, tannase could be used to reduce the ill effects of tannins in beverages, food and tannery effluents for the production of gallic acid from tannin rich materials. Tannase is a natural anti-oxidant phenol found in numerous fruits and vegetables and various plant parts. The anti-proliferative and anti-oxidant properties of Tannase have prompted research into its potential health benefits. Despite tannase is considered as an important industrial enzymes,the present review describes its role in various chronic diseases.
STUDY OF THE STATE AND CADASTRAL ASSESSMENT OF NATURAL HONEY-BEARING RESOURCES OF THE NORTHERN FOREST-STEPPE ZONE OF THE REPUBLIC OF BASHKORTOSTAN
Authors: Маннапов А.Г. , Мустафин Р.Ф. , Хисамов Р.Р. , Фархутдинов Р.Г. , Габидуллина Г.Ф. , Султанов И.Ф. , Дихин Д.Р.
Published: February 2022

В статье представлены результаты мониторинга состояния медоносных ресурсов лесных участков Северной лесостепной зоны Республики Башкортостан. Изучение состояния естественных медоносных растений определенного региона позволяет рационально использовать медоносные ресурсы местности. В результате проведения работ по кадастровой оценке медоносных ресурсов осуществляется экономическая оценка производственного потенциала, которая необходима для планирования перспектив развития пчеловодства на данной территории.Целью исследований является изучение флористического состава основных медоносных растений Северной лесостепи Республики Башкортостан (РБ), определение медоносного запаса и кадастровая оценка медоносных ресурсов изучаемой природной зоны.Установлено, что доминирующим медоносным растением на территории изучаемой природной зоны является липа мелколистная (Tilia cordata Mill.), которая формирует более 99 % медоносного запаса. Проведен расчет потенциально возможного объема производства и стоимости продукции пчеловодства на территории Северной лесостепи РБ

The article presents the results of monitoring the state of honey-bearing resources of forest areas of the Northern forest-steppe zone of the Republic of Bashkortostan. The study of the state of natural honey-bearing plants of a certain region allows rational use of the honey-bearing resources of the area. As a result of the cadastral assessment of honey-bearing resources, an economic assessment of the production potential is carried out, which is necessary for planning the prospects for the development of beekeeping in this territory.The purpose of the research is to study the floral composition of the main honey-bearing plants of the Northern forest-steppe of the Republic of Bashkortostan (RB), to determine the honey reserve and cadastral assessment of the honey-bearing resources of the studied natural zone.It is established that the dominant honey-bearing plant in the territory of the studied natural zone is the small-leaved linden (Tilia cordata Mill.), which forms more than 99% of the honey-bearing stock. The calculation of the potential possible volume of production and the cost of beekeeping products on the territory of the Northern forest-steppe of the Republic of Belarus is carried out.
The pH-dependent Swelling of Weak Polyelectrolyte Hydrogels Modeled at Different Levels of Resolution
Authors: Landsgesell Jonas , Beyer David , Hebbeker Pascal , Košovan Peter , Holm Christian
Published: February 2022

The swelling of polyelectrolyte hydrogels has been often explained using simple models derived from the Flory-Rehner model. While these models qualitatively predict the experimentally observed trends, they also introduce strong approximations and neglect some important contributions. Consequently, they sometimes incorrectly ascribe the observed trends to contributions which are of minor importance under the given conditions. In this work, we investigate the swelling properties of weak (pH-responsive) polyelectrolyte gels at various pH and salt concentrations, using a hierarchy of models, gradually introducing various approximations. For the first time, we introduce a three-dimensional particle-based model which accounts for the topology of the hydrogel network, for electrostatic interactions between gel segments and small ions and for acid-base equilibrium coupled to the Donnan partitioning of small ions. This model is the most accurate one, therefore, we use it as a reference when assessing the effect of various approximations. As the first approximation, we introduce the affine deformation, which allows us to replace the network of many chains by a single chain, while retaining the particle-based representation. In the next step, we use the mean-field approximation to replace particles by density fields, combining the Poisson-Boltzmann equation with elastic stretching of the chain. Finally, we introduce an ideal gel model by neglecting the electrostatics while retaining all other features of the previous model. Comparing predictions from all four models allows us to understand which contributions dominate at high or low pH or salt concentrations. We observe that the field-based models overestimate the ionization degree of the gel because they underestimate the electrostatic interactions. Nevertheless, a cancellation of effects on the electrostatic interactions and Donnan partitioning causes that both particle-based and field-based models consistently predict the swelling of the gels as a function of pH and salt concentration. Thus, we can conclude that any of the employed models can rationalize the known experimental trends in gel swelling, however, only the particle-based models fully account for the true effects causing these trends. The full understanding of differences between various models is important when interpreting experimental results in the framework of existing theories and for ascribing the observed trends to particular contributions, such as the Donnan partitioning of ions, osmotic pressure or electrostatic interactions.
Contrast-induced acute kidney injury after computed tomography with contrast media in patients with cardiovascular diseases
Authors: Vasin Andrey A. , Mironova Olga Iu. , Fomin Victor V.
Published: February 2022

Aim. To assess the frequency of contrast-induced acute kidney injury (CI-AKI) in patients with cardiovascular diseases (CVD) undergoing computed tomography (CT) with intravenous contrast media.
Materials and methods. In prospective observational study (ClinicalTrials.gov ID NCT04666389) were included 51 patients with CVD undergoing CT with intravenous contrast media administration. The primary endpoint was CI-AKI according to KDIGO criteria [the 25% rise (or 0.5 mg/dl) of serum creatinine from baseline assessed 4872 hours after administration of contrast media]. There were 51% of women included in the study. The average age was 61.741.5. The most frequent cardiovascular disease was hypertension in both men and women 52 and 39% respectively.
Results. CI-AKI was diagnosed in 2 (3.92%) patients. At the same time, it was not possible to establish statistically significant relationship (p0.05) between risk factors and the development of CI-AKI.
Conclusion. Cardiovascular diseases may increase the risk of CI-AKI after CT with intravenous contrast media administration. Therefore, it is recommended to evaluate the serum creatinine concentration in such patients.
Surgical tactics for acute abdominal complications of primary hyperparathyroidism. Clinical case
Authors: Morozov Viсtor P. , Boriskova Marina E. , Bykov Mikhail A. , Did-Zurabova Elena S. , Kulikov Dmitrii V. , Ramazanova Elmira A. , Kelbetova Bibigul R.
Published: February 2022

Primary hyperparathyroidism (PH) is one of the most common diseases of the endocrine system that requires surgical treatment. The most common cause of PH is parathyroid adenoma, which occurs in 8590% of cases, in 510% multiple adenomas or hyperplasia of several or all parathyroid glands. Surgical treatment is the only radical and effective method of treating PH, however, the variability of the anatomy of the parathyroid glands, the possibility of their ectopic location, as well as the close connection with the thyroid gland, in some cases, complicate the intraoperative verification of the parathyroid adenoma. All this can lead to inadequate volumes with parathyroidectomy. In this article, the presented clinical case demonstrates how the complexity of intraoperative verification of the parathyroid glands during parathyroidectomy led to intra-abdominal life-threatening complications acute duodenal ulcer with subsequent perforation and acute cholecystitis against the background of persistent hypercalcemia and perioperative stress. Also, on the example of this case, surgical tactics are demonstrated, taking into account the pathogenesis of abdominal complications.
Hepatic impairment as a risk factor of adverse drug reactions
Authors: Ostroumova Olga D. , Pereverzev Anton P.
Published: February 2022

There are a lot of clinical variants of hepatic impairment ranging from asymptomatic increase in transaminases to acute liver failure and fulminant hepatitis. Hepatic impairment is a polietiologic syndrome. According to the epidemiological study conducted in the United States (19982008), the main causes of hepatic impairment were paracetamol overdose (46%), idiopathic liver dysfunction (14%), other drugs (excluding paracetamol, 11%), viral hepatitis B (7%), other infectious and non-infectious diseases with liver damage (except for viral hepatitis) 7%, autoimmune hepatitis (5%), ischemic hepatitis (syn. hypoxic hepatitis, liver infarction) 4%, viral hepatitis A (3%) and Wilson's disease (2%). Hepatic impairment have a direct impact on the pharmacokinetics and pharmacodynamics of drugs decreasing clearance, elimination and excretion of drugs. Also Transjugular intrahepatic porto-systemic shunts, which are often used to treat portal hypertension in patients with liver cirrhosis, can significantly reduce the presystemic elimination of drugs, thereby increasing their absorption. Moreover, in patients with liver cirrhosis, concomitant renal dysfunction also requires an adjustment of the dose of drugs. Correction of pharmacotherapy in accordance to pharmacokinetic and pharmacodynamic changes of drugs ingested by patients with impaired liver function will improve the quality of medical care and reduce the risks of adverse drug reactions.
Different approaches to change gut microbiota and its influence on metabolic disorders
Authors: Shestakova Ekaterina A. , Pokrovskaya Elena V. , Samsonova Margarita D.
Published: February 2022

Obesity and type 2 diabetes mellitus (T2D) are two non-infectious pandemics of the XXI century. Despite a large number of studies devoted to the development of obesity and T2D, it seems complicated to overcome the ongoing growth in the number of cases. In these situations it is necessary to investigate new approaches for the prevention and treatment of such diseases. One of these approaches is to study the role of gut microbiota in the disturbance of carbohydrate and lipid metabolism. This manuscript describes the role of the microbiota in obesity and T2D. The aim of the review was to describe various approaches to change the composition of the gut microbiota and to determine its impact on metabolic risks. To assess the relationship between T2D development and changes of microbiota composition we considered a number of studies devoted to the consequence of these pathophysiologic mechanisms in various situations: the effect of drug treatment, bariatric surgery and microbiota transplantation. Possible metabolically protective gut microbiota composition is discussed.
Prueba matemática para educación remota en secundaria
Authors: Olivares Ch´ávez Helen Rocío
Published: February 2022

El presente artículo, tiene el propósito de elaborar, validar y que sea fiable el instrumento que es una prueba de matemática “Practicando lo aprendido” para los estudiantes del tercer grado de educación secundaria, con el fin de lograr las competencias matemáticas y en especial la utilidad de esta. Desarrollando varios procesos, primero fue elaborar el instrumento teniendo en cuenta el modelo de la prueba de Evaluación Censal de Estudiantes (ECE), pero contextualizada al lugar y a las circunstancias que estamos viviendo en esta pandemia, contando con ocho jueces expertos validando con la prueba binomial resultando valida al 100%, luego se aplicó la prueba piloto a veintiséis estudiantes de dos instituciones educativas de similares características, para la confiabilidad se utilizó la prueba de Alfa de Cronbach, resultando 0,688 valor que indica adecuado, que tiene consistencia interna. Concluyendo que el instrumento es válido y confiable para lograr desarrollar las competencias matemáticas en estudiantes del tercer grado de secundaria.
Los programas educativos y sus logros
Authors: Alderete Callupe Liz
Published: February 2022

La presente es una investigación documental y sistemática de artículos científicos e investigaciones de bases de datos representativas como Dialnet, Scielo y Scopus para hacer una descripción del estado del Arte de los programas educativos en relación a sus logros. Utilizó como instrumento de recolección de información una matriz de selección de investigaciones y una ficha analítica de investigación, teniendo en cuenta las categorías propuestas y logros. La información fue sistematizada por la hermenéutica como elemento de estructuración fundamentado en referencias conceptuales. Se aprecian investigaciones en procesos educativos y áreas temáticas. Los programas educativos tienden a ocuparse de la Educación, manejo y cuidado, Salud y desempeño empresarial y se dirigen a los niveles Primaria, Secundario y Universitario aplicando metodologías y filosofías, se dirigen también a los campos administrativos, gestión humana e institucional aportando con la aplicación de Estrategias de Motivación y Desempeño profesional. Los logros de los programas educativos son la influencia de la emoción del individuo con sus efectos de regulación socioemocional, mejora de conocimientos en áreas de conducta, determinar y combatir factores negativos y potenciar factores positivos, la mejora académica.
Instrumento de medida de la comprensión lectora
Authors: Arauzo Gallardo Carlos
Published: February 2022

La investigación propone la construcción de un instrumento de recolección de datos para evidenciar el nivel de comprensión lectora en estudiantes del tercer grado de educación primaria, para ello se siguieron las fases de elaboración de tres versiones de acuerdo a la observación de 3 expertos, aplicada a una muestra piloto de 13 estudiantes. Resultando un instrumento válido (coeficiente Aiken=1), validez de criterio por Aiken total mayor a 0,2 por ítem, error estándar de medición del instrumento de +/- 2,5 e ítems aceptables y de muy buena discriminación. Confiabilidad con el Alfa de Cronbach mayor a 0,7. Tras la aplicación del instrumento a nivel descriptivo cuantitativo se encontró que los estudiantes de la muestra se encuentran en el nivel de inicio y en ninguna de las dimensiones llegan a logro destacado.
Proximate composition and changes in muscle proteins of dried salted abo
(Otolithes ruber)
Authors: Avila T.N. , Bigueja M.C. , Bradecina R.G. , Mendoza Jr. A.B. , Canon K.L. , Kubota S.
Published: February 2022

Dried salted abo is a popular fishery product in San Miguel Bay (SMB), Philippines.
However, the development of this food product has not been fully explored. In this study,
the proximate composition and muscle protein profile of dried salted abo was investigated
after confirming the molecular identification of abo found in SMB. Sequence analysis of
16S ribosomal RNA and cytochrome c oxidase subunit I genes suggested that abo in SMB
could be Otolithes ruber. Abo fillets were brined in 4%, 8%, and 12% salt concentrations
(w/w) and sun-dried for 6 and 12 hrs. In both 6 hrs and 12 hrs drying time, moisture
content decreased in samples brined with 12% salt, suggesting that the salt concentration
could be lowered between 8–12% with 6 hrs drying time. Additionally, the proteolytic
profiling by SDS-PAGE analysis detected 17 bands in the myofibrillar protein fraction.
Subsequent mass spectrometry identified nine proteins, of which the myosin heavy chain,
actin, and keratin were degraded while the other proteins remained stable. Moreover, at
12% salt concentration, changes in staining intensities in several proteins were observed at
both 6 hrs and 12 hrs drying time. These findings revealed that the applied salting and
drying conditions led to the degradation of myosin heavy chain and polymerization of
actin, in addition to an overall alteration of protein profile, which could affect the texture
of dried abo product. Overall, this study demonstrated molecular evidence for species
identification of abo for the first time. The information on proximate composition and
changes in the protein profile of dried salted abo obtained from this study could help the
local dried fish industry develop high-quality dried abo products with low salt content.
Effects of ripeness and extraction conditions on the content of phenolic
compounds in banana peels (Musa paradisiaca L.)
Authors: Pham T.B.N. , Nguyen V.M. , Pham N.T.D. , Tran T.T. , Pham T.N.
Published: February 2022

The banana peels accounts for approximately 36% of the total fruit weight yet are mostly
discarded as waste or used only for animal feeding. However, studies have shown that this
by-product is rich in phenolic compounds and is a traditional treatment. The levels and
composition of phenolic compounds are influenced by various factors. The purpose of the
present study was to evaluate the effect of ripeness and extraction conditions on
polyphenol content and antioxidant activity of banana peels (Musa paradisiaca L.) by
analysing the total phenolic content (TPC) and using 2,2-diphenyl-1-picrylhydrazyl
(DPPH) radical scavenging assays. Results have shown that yellowish green coloured
banana peels exhibited significantly higher antioxidant activity as compared to mature
(green-coloured) and ripe (yellow-coloured) peels. The optimal extraction conditions
include ethanol concentration of 50%, material/solvent ratio of 1:40 (w/v), extraction time
of 1.5 hrs and temperature of 60°C. Under these conditions, the obtained TPC and the
antioxidant activity was approximately 9.93 mg GAE/g and 50 μmol TE/g, respectively.
Quantitative results by HPLC indicate the presence of quercetin-3-glc, vanillic acid,
caffeic acid, ferulic acid, gallic acid and epicatechin.
Educação, direito e identidade: Licenciatura Intercultural Indígena em Alagoas – CLIND-AL
Authors: Lopes Peixoto José Adelson , Pereira Campos Zuleica Dantas
Published: February 2022

Este artigo apresenta o projeto desenvolvido na Universidade Estadual de Alagoas – UNEAL, visando a oferta de Cursos de Licenciatura Intercultural Indígenas, em uma ação pioneira naquele estado, em convênio com o Ministério da Educação, por meio do Fundo Nacional de Desenvolvimento da Educação, e uma segunda oferta, financiada pelo Fundo Estadual de Combate e Erradicação da Pobreza, com recursos estaduais. A ação é direcionada a atender a 12 etnias indígenas de Alagoas. A formação específica de professores indígenas obedece à Constituição Brasileira de 1988, à Lei de Diretrizes e Bases da Educação Nacional e ao Plano Nacional de Educação sobre a oferta de uma Educação de qualidade e inclusiva, possibilitando o acesso de indígenas ao ensino superior. Este trabalho, além de historicizar o referido processo, em Alagoas, traz considerações sobre o campo da educação escolar indígena enquanto elemento primordial para a autonomia, o respeito a ancestralidade e aos saberes tradicionais indígenas.
“Você só vai me perguntar o peso e com quem transo?” Diálogos entre alimentação, saúde, gênero e sexualidade: aproximações metodológicas
Authors: Fernandez Unsain Ramiro Andres , Dimitrov Ulian Mariana , Morais Sato Priscila de , Sabatini Fernanda , Silva Oliveira Mayara Sanay da , Baeza Scagliusi Fernanda
Published: February 2022

A partir da prática de uma metodologia que considera uma abordagem qualitativa e incorpora técnicas quantitativas, procuramos analisar criticamente a aplicabilidade desta aproximação para entender os significados que os sujeitos gays autodenominados “ursos” atribuem à relação entre às práticas alimentares, à sexualidade homoerótica e às masculinidades e suas possíveis consequências na própria saúde. Realizamos uma pesquisa qualitativa de cunho etnográfico do tipo exploratório-descritiva-explicativa com o que denominamos como uma abordagem híbrida. Os dados foram construídos a partir de entrevistas de histórias de vida e semiestruturadas. Acrescentamos técnicas quantitativas para completar um corpus significativo e congruente com os objetivos propostos. A avaliação da aplicabilidade da aproximação metodológica apresentada se deu a partir de uma análise crítica dos materiais recolhidos. Uma abordagem híbrida mostrou-se adequada para descrever e explicar as características e os sentidos significativos desta população. A aplicação e utilização de metodologias e técnicas em diálogo crítico pode ser útil para obter uma maior riqueza descritiva/explicativa.
Morphological Characteristics and Lung Function of the Pilots of Montenegro Army
Authors:   Faculty for Sport and Physical Education, University of Montenegro, Niksic, Montenegro, Banjevic Boris , Zarkovic Boris ,   Faculty of Sport and Physical Education, University of Novi Sad, Novi Sad, Serbia
Published: February 2022

The results of numerous medical studies and kinesiology research show the existence of differences in the lung function with reference to age, body height and the ratio of certain parameters of body composition. The aim of this research is to determine the status of morphological characteristics and the lung function with the pilots of Montenegro Army. The sample of examinees consisted of 30 military pilots of the age 36.3±11. The sample of measures was made of 4 indicators for the assessment of longitudinal dimension, transverse dimension, body mass and volume, subcutaneous fat, body composition and lung function. Central and dispersion variables parameters were calculated. The specificities of the body height of pilots as well as the excessiveness in their body weight were calculated, while the parameters of lung volumes and capacities and the parameters of the flow of respiratory passageways have shown the satisfactory condition of their respiratory function. In addition, it was shown that the pilots are soldiers without individual medical risks in the sense of obesity appearance or obstructive ventilation disturbances. The obtained results indicate the need to conduct research in which the effect of certain morphological measures and parameters of the pilot’s body composition to their lung function would be dominantly studied. In that way we would obtain significant data both for the military organisation in the sense of promoting the training system and realization of target tasks, and for the kinesiology science from the aspect of determining certain regularities of the functioning of human body in specific life and work conditions in the army.
The Influence of Teacher Efficacy on 21st Century Pedagogy
Authors: Shafiee Nur Syarima , Ghani Mariny Abdul
Published: February 2022

This paper explores the influence of teacher efficacy in classroom management, student involvement, and teaching strategy on 21st century pedagogical practice. A total of 201 teachers from schools implementing the International Baccalaureate-Middle Year Program (IBMYP) and schools implementing the Secondary School Standard Curriculum (KSSM) in Perlis, Kelantan, and Penang were selected through cluster sampling and purposive sampling. Data were collected using an instrument adapted from the Teacher’s Sense of Efficacy Scale (TSES) with 24 items that measure three dimensions of teacher efficacy, namely classroom management, student involvement, and teaching strategy. Teachers’ 21st century pedagogy in this study was measured using the West Virginia 21st Century Teaching and Learning Survey, which has been modified into five main dimensions with 22 items. These are critical thinking, collaboration, communication, creativity and innovation, and information technology. Data collected were analyzed using Smart Partial Least Squares 3.0 and Statistical Package for the Social Sciences 22.0 software. Analysis showed that the effectiveness of teachers’ teaching strategy influences 21st century pedagogy significantly. In contrast, teacher efficacy in classroom management and student involvement does not significantly influence 21st century pedagogical practice. This study shows that the effectiveness of classroom management, that is the ability to control student behavior and manage the classroom according to lesson planning, does not contribute to 21st century pedagogical practice. Similarly, student involvement does not contribute significantly to 21st century pedagogical practice, possibly due to the dense curriculum and the large number of students in the classroom.
The Gap between Perceived and Achieved English Communication Needs of Saudi Management and Business Administration Students: An ESP Paradigm
Authors: Alfaifi Abdullah Ahmad M. , Bahudhailah Mohammad , Saleem Mohammad
Published: February 2022

English has gained institutional as well as social acceptance in Saudi Arabia, especially as the language of higher education. Institutes of higher learning make sure that their students achieve an acceptable standard of communicative competence. But, despite many efforts, the discrepancy between the perceived and achieved needs of learners in English communication is observed. This is specifically true of specific course students, such as Management and Business Administration students, who are taught English to enhance their professional communicative competence in English. An empirical study based on survey was conducted at King Abdulaziz University—Rabigh Branch, Saudi Arabia, to investigate whether the English communication needs of Management and Administration students envisaged by the University matched the needs perceived by these students for themselves in the changing global scenario regarding the use of English, and if there is any discrepancy between the two, whether students wish for a change in the way English is taught to them currently. The results obtained from the survey show that students advocate for English for Specific Purposes (ESP) for themselves, with increased semesters of teaching and inclusion of more books in English catering to business English requirements. The implications of the study are far reaching as the students’ perception of their English communication needs indicates the need for stronger advocacy for the inclusion of ESP courses, especially in the vocational programs at the university, such as MBA.