bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh Pembelajaran Kooperatif Tipe Student Teams Achievement Divisions (STAD) Terhadap Kemampuan Siswa Dalam Mengerjakan Bukti Dalam Matematika Pada Siswa SMA
Authors: Noor Firman Syah 
Published: March 2022

Abstract
This article reports the findings of a pretest post test experimental control group design conducted to analysis students’ mathematical proving ability by using STAD strategy. The subjects of this study were two classess eleventh grade students of a State Senior High School in Bandung. Instruments of this study were a mathematical proving ability test of three mathematics topics and an observation sheet of students’ activities during the lesson. The data was analyzed by using t-test. The study found that according to entirely and each kind of proving strategies and mathematics topics students of STAD class got higher scores and gains on mathematical proving ability than those scores and gains of students’ abilities of conventional class. Likewise, the number of students who reached mastery learning in mathematical proving abilities of STAD class was higher than the number of students of conventional class as well. Moreover, during the lesson, students of STAD strategy performed more active in discussing with each other than students of conventional class.
Keywords: mathematical proving ability, direct proving method, indirect proving method, STAD strategy.

Abstrak
Makalah ini melaporkan temuan suatu eksperimen dengan disain prete-poste dan kelompok kontrol yang bertujuan menganalisis kemampuan menyuausn bukti matematika siswa dengan menggunakan strategi STAD. Subyek penelitian ini adalah siswa dari dua kelas sebelas pada satu SMA Negeri di Bandung. Instrumen penelitian ini adalah tiga perangkat tes pembuktian matematik dan lembar observasi kegiatan siswa selama pembelajaran. Data dianalisis dengan uji-t. Studi menemukan bahwa berdasarkan keseluruhan dan pada tiap jenis pembuktian matematik dan tiap topik matematika, siswa kelas STAD memperoleh skor dan gain kemampuan pembuktian matematik yang lebih besar dari skor dan gain siswa pada kelas konvensional. Selain itu juga ditemukan persentase siswa yang mencapai tuntas belajar dalam pembuktian matematik pada kelas STAD lebih besar dari persentase siswa pada kelas konvensional. Studi juga menemukan siswa pada kelas STAD menunjukkan lebih aktif dalam berdikusi dibandingkan siswa pada kelas konvensional
Kata kunci: kemampuan pembuktikan matematik, buktilangsung,bukti tak langsung, strategi STAD
Pembelajaran Kontekstual Untuk Mengembangkan Kemampuan Komunikasi Dan Pemecahan Masalah Matematika Siswa SMP
Authors: Maryati Iyam 
Published: March 2022

Subjects in the study were students of class VIII junior secondary school class one experimental and one control class. The instrument used in this study consists of two instruments, namely, (1) test communications and mathematical problem solving that aims to measure communication skills and mathematical problem solving of students after learning, and (2) the scale of attitude that serves to express students' applied learning the class eksperimen. From data analysis in this study, it is concluded that (1) the ability of students in mathematical communication in the group of students that uses contextual learning better than students who studied with conventional learning. (2) The ability of students in mathematical problem solving in student groups that use contextual learning better than students who studied with conventional learning. (3) There is a very high correlation between communication skills and mathematical problem solving of students. This means that the rank obtained by the students on communication skills with a rating similar to that obtained in mathematical problem solving ability. There are also associations at anatara enough communication skills to solving mathematical problems. This shows that student achievement in communication skills similar to mathematical problem solving ability and vice versa. Correlations and associations found in both groups. 4) the scale of students' attitudes toward learning context shows that the majority of students expressed agreement the learning activities that took place during the study.
Penerapan Pembelajaran Project-Based Learning (Pjbl) Untuk Meningkatkan Kemampuan Pemahaman Matematis Siswa SMA
Authors: . Linda 
Published: March 2022

Penelitian ini bertujuan untuk mengungkapkan apakah Project-Based Learning (PjBL) dapat meningkatkan kemampuan pemahaman matematis siswa, untuk mengetahui aktivitas guru dan siswa dalam kegiatan Project-Based Learning (PjBL) dan untuk mengetahui sikap siswa terhadap pembelajaran Project-Based Learning (PjBL).. Metode penelitian ini adalah metode gabungan (mixed method) dengan Embedded design. Populasi penelitian ini adalah seluruh siswa kelas XI SMA N 2 Gunungputri Kabupaten Bogor, adapun sampelnya adalah siswa kelas XI IPA 3 sebagai kelas eksperimen dan siswa XI IPA 2 sebagai kelas kontrol. Kelompok eksperimen memperoleh pembelajaran dengan model Pembelajaran Project-Based Learning dan kelompok kontrol memperoleh pembelajaran ekspositori. Untuk mendapatkan data hasil penelitian digunakan instrumen berupa tes kemampuan pemahaman matematis, pedoman observasi, pedoman wawancara dan skala angket. Analisis data dilakukan secara kuantitatif dan kualitatif. Analisis kuantitatif dilakukan terhadap data tes awal, tes akhir, dan gain ternormalisasi kemampuan pemahaman matematis, serta terhadap data tes kedua kelompok dilakukan uji perbedaan rerata antara dua populasi dengan uji t. Analisis kualitatif dilakukan untuk menelaah aktivitas guru dan siswa selama pembelajaran Project-Based Learning dan sikap siswa terhadap pembelajaran yang menggunakan model Pembelajaran Project-Based Learning. Hasil penelitian menunjukkan bahwa peningkatan kemampuan pemahaman matematis siswa yang mendapatkan model pembelajaran Project-Based Learning lebih baik daripada siswa yang mendapatkan pembelajaran ekspositori dan Respon siswa terhadap pelaksanaan pembelajaran matematika dengan model pembelajaran Project-Based Learning adalah positif.
Penerapan Authentic Assessment Berbentuk Portofolio Dalam Pembelajaran Berbasis Masalah Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematik Peserta Didik
Authors: Franjaya Perliawan 
Published: March 2022

Tujuan penelitian ini adalah untuk :Mengetahui dan membandingkan peningkatkan kemampuan pemecahan masalah matematik peserta didik yang pembelajarannya menggunakan authentic assesmentberbentuk portofolio dalam pembelajaran berbasis masalah, peserta didik yang pembelajarannya menggunakan pembelajaran berbasis masalah dengan peserta didik yang pembelajarannya menggunakan pembelajaran konvensional berdasarkan kelas pembelajaran dan Kemampuan Awal Matematika (KAM); Mengetahui sikap peserta didik selama proses pembelajaran berlangsung menggunakan pembelajaran berbasis masalah
Penelitian ini menggunakan metode Mixed Method Research dengan strategi Embedded design. Teknik pengumpulan data yaitu tes kemampuan pemecahan masalah, wawancara dan angket sikap peserta didik. Populasi penelitian adalah seluruh peserta didik kelas X SMAN 2 KS Cilegon dengan sampel penelitian yaitu kelas X IPA 1, X IPA 2 dan X IPA 3. Teknik pengolahan data menggunakan pedoman penskoran tes kemampuan pemecahan masalah matematik dan pengolahan angket sikap peserta didik.
Berdasarkan hasil pengolahan data dapat disimpulkan: terdapat perbedaan peningkatan kemampuan pemecahan masalah matematik peserta didik yang pembelajarannya menerapkan authentic assesmentberbentuk portofolio dalam pembelajaran berbasis masalah, peserta didik yang pembelajarannya menerapkan pembelajaran berbasis masalah dan peserta didik yang pembelajarannya menggunakan pembelajaran konvensional. Sikap peserta didik positif setelah penerapan pembelajaran matematika menggunakan pembelajaran berbasis masalah
Studi Komparatif Tentang Peningkatan Kemampuan Penalaran Matematik Dan Motivasi Siswa Yang Belajar Dengan Two Stay Two Stay (TSTS) Dan Direct Instruction
Authors: Tarsidi Iding 
Published: March 2022

Penelitian ini bertujuan untuk menelaah tentang peningkatan kemampuan penalaran matematik dan motivasi siswa yang belajardengan two stay two stay (TSTS) dandirect intruction (pembelajaran langsung). Penelitian ini berbentuk eksperimen dengan tempat penelitian di SMP Negeri 7 Banjar kecamatan Purwaharja Kota Banjar dengan sampel adalah siswa kelas VIII A dan kelas VIII B diantara 6 kelas yang ada di kelas VIII yang diambil secara acak. Dari Penelitian ini disimpulkan bahwa: (1) Kemampuan penalaran matematis siswa yang belajar dengan two stay two stay (TSTS) lebih baik dibandingkan siswa yang belajar dengan direct instruction. (2) Peningkatan kemampuan penalaran matematis siswa yang belajar dengan Two Stay Two Stay (TSTS) lebih baik daripada siswa yang belajar dengan direct instruction (3) Motivasi belajar siswa yang belajar dengan Two Stay Two Stay (TSTS) lebih baik daripada siswa yang belajar dengan direct instruction.
Habilidad en la lucha contra el discurso de odio
Authors: Checa Godoy Antonio 
Published: March 2022

La presencia del discurso de odio no es nada nuevo en nuestro panorama comunicativo cotidiano, pero distintas circunstancias, como el auge sostenido e internacional de los populismos o la generalización del uso intensivo de redes sociales desde tempranas edades y desde luego la larga pandemia vivida por la humanidad en 2020 y 2021, la están multiplicando. Se convierte por ello en inquietud generalizada y se legisla para contenerlo. Casi todos los países latinoamericanos, por ejemplo, tienen ya alguna normativa en vigor en este ámbito1. Pero el discurso está aquí, sigue, crece y se diversifica, lo favorece el que su divulgación es comparativamente barata y más si consideramos la facilidad de alcanzar grandes audiencias en escaso tiempo. Es necesario esforzarse en combatirlo en mayor y mejor medida. Sobre todo en el seno del mundo audiovisual, donde alcanza hoy más presencia y más complejidad. ¿Cómo hacerlo con eficacia?
Las calles del Viejo San Juan y sus rincones
Authors: Marie Rodríguez Andrea 
Published: March 2022

Los españoles, durante su estancia en Puerto Rico, encaminaron sus esfuerzos a la protección de la isla y para ello construyeron una ciudad amurallada que hoy en día conocemos como el Viejo San Juan. Las fotografías que aparecen a continuación capturan la historia a través de edificios y monumentos localizados en la colonial y pintoresca ciudad. El Viejo San Juan, la ciudad construida por los españoles, hoy día se muestra florecida y conserva el patrimonio histórico de Puerto Rico.
El amor por la fotografía de Andrea Marie Rodríguez comenzó el año 2019. Su admiración del entorno ambiental, social y cultural la ha llevado a capturar no solo monumentos históricos y esculturas, sino también la diversidad natural que los rodea. De norte a sur y de este a oeste, se observa una gama de intensos colores en los paisajes que la Isla del Encanto regala. Desde majestuosas playas hasta bosques lluviosos y desiertos capturan el ojo, que así se puede plasmar en arte.
Género, lenguaje, calidad literaria: reflexiones en torno a la literatura escrita por mujeres en México
Authors: Gómez Estrada Grissel 
Published: March 2022

En estos tiempos, en los que se han cuestionado fuertemente los conceptos no solo de «sexo», sino de «género» e «identidad» a partir de categorías distintas a las planteadas por el sistema patriarcal, es necesario seguir criticando las prácticas que marginan a las mujeres. En este documento, se reflexiona sobre el lenguaje literario, enmarcado en la idea de género, perspectiva y en los cuestionamientos actuales de mujeres escritoras mexicanas. La pregunta de investigación es: ¿las mujeres ejercen un lenguaje distinto al de los hombres, que las hace ser escritoras menores frente a ellos?
Intratracheal oxygen administration increases FIO2 and PaO2 compared with intranasal administration in healthy, standing horses
Authors: Floriano Dario , Watkins Amanda R. , Hopster Klaus 
Published: March 2022

Abstract

OBJECTIVE
To evaluate the efficacy of 2 different oxygen delivery strategies—intranasal and tracheal insufflation—on the inspired fraction of oxygen (FIO2) in standing horses and to determine the time needed for arterial oxygen partial pressure (PaO2) equilibration.

ANIMALS
6 healthy adult horses.

PROCEDURES
In this blinded, randomized crossover design study, horses were randomly assigned to receive oxygen via nasal cannula (group N) or transcutaneous tracheal catheter (group T). After placement of venous and arterial catheters, FIO2 was measured through a catheter placed into the distal portion of the trachea. After baseline measurements were obtained, horses received oxygen at up to 25 mL/kg/min for 1 hour via either intranasal or intratracheal catheter. The FIO2 and PaO2 were recorded at 5, 10, 15, 20, 25, 30, 45, and 60 minutes during and 5, 10, 15, 20, and 30 minutes after oxygen insufflation. Data were analyzed by use of a 2-way repeated measures ANOVA with Tukey-Kramer post hoc testing for pairwise comparisons (P < 0.05).

RESULTS
During oxygen administration, FIO2 and PaO2 increased significantly when compared with baseline, resulting in significantly higher values for group T (37.7 ± 2.4%; 214.6 ± 18 mm Hg) than for group N (34.3 ± 3.9%; 184.1 ± 11 mm Hg). The equilibration time was less than 10 minutes.

CLINICAL RELEVANCE
Intratracheal oxygen administration resulted in better oxygenation than nasal insufflation and should therefore be considered in standing horses that are experiencing severe respiratory compromise. The equilibration between FIO2 and PaO2 is rapid in adult horses.
Industrial transfer and regional economy coordination based on multiple regression model
Authors: Zhang Shibin , Alsemmeari Rayan Atteah , Tian Taorui 
Published: March 2022

Abstract
In the development of urban construction, regional economic differences have always been the focus of the government, society and academia. As an eastern coastal province in China, although Jiangsu has a relatively high level of economic development from an overall point of view, there is still a serious problem of regional economic disparity within it. Therefore, based on the development of local economic construction and the understanding of the phenomenon of industrial transfer, this paper uses a multiple regression model to study the regional economic coordination and thus puts forward appropriate solutions.
Red flags in financial reporting - empirical studies in the AeRO market
Authors: Dănescu Tatiana , Spătăcean Ioan Ovidiu , Stejerean Roxana Maria 
Published: March 2022

Abstract
Understanding the factors that cause fraud and properly defining key areas of conduct is one of the most effective ways to detect potential irregularities, where the auditor’s professional judgment and skepticism are essential. In this respect, it is necessary to study some key financial indicators, but also to use various procedures to identify and detect fraud and possible manipulation in the financial reporting process. The objectives are aimed at identifying and highlighting possible red flags in companies whose shares are traded on the Bucharest Stock Exchange. The sample considered sensitive to fraudulent financial reporting is composed of four distinct categories of companies, namely: companies recently admitted to trading on the AeRO market administered by the Bucharest Stock Exchange (21), companies that obtained a zero Vektor score in 2020 (9), companies that obtained a low score in the White Letter publication (5), and companies in insolvency (4).
Effects of dietary Gracilaria persica on the intestinal microflora, thyroid hormones, and resistance against Aeromonas hydrophila in Persian sturgeon (Acipenser persicus)
Authors: Sakhaie Fahimeh , Adel Milad , Shekarabi Seyed Pezhman Hosseini , Dawood Mahmoud A.O. , Gholamhosseini Amin 
Published: March 2022

Abstract
Red seaweeds have several biomedical derivatives making them healthy additives for the aquaculture industry. Previously we reported enhanced growth performance, feed utilization, and immunity of Persian sturgeon treated with Gracilaria gracilis. Herein, we investigated the effects of G. gracilis on the intestinal microflora, thyroid hormones, and resistance against Aeromonas hydrophila in Persian sturgeon. Fish fed G. gracilis at 0, 2.5, 5, and 10 g/kg for eight weeks, then challenged with A. hydrophila for ten days. The results showed that the total bacterial count in the fish intestines had no meaningful differences among the groups of fish fed varying levels of G. persica (P˃0.05). Fish fed 10 g/kg of G. persica had a higher lactic acid bacteria (LAB) count than fish fed 0, 2.5, and 5 g/kg (P<0.05). Serum thyroid-stimulating hormone (TSH) showed higher levels in fish treated with 2.5 and 5 g/kg of G. persica than the other groups (P<0.05). Besides, fish fed 2.5 g/kg G. persica had higher thyroxine (T4) and triiodothyronine (T3) levels than the other groups (P<0.05). At the end of the challenge test, the highest mortality was seen in the fish fed the G. persica free diet. In summary, Persian sturgeon treated G. gracilis had improved intestinal microflora, thyroid hormones, and resistance against A. hydrophila.
The multi-enzymes and probiotics mixture improves the growth performance, digestibility, intestinal health, and immune response of Siberian sturgeon (Acipenser baerii)
Authors: Shekarabi Seyed Pezhman Hosseini , Ghodrati Mojtaba , Dawood Mahmoud A.O. , Masouleh Alireza Shenavar , Roudbaraki Amin Farahbod 
Published: March 2022

Abstract
The inclusion of exogenous digestive enzymes and probiotics is well established in the aquafeed industry. The mixture of multi-enzymes and probiotics improves the feed utilization and wellbeing of aquatic animals compared to the individual supplementation. Herein, we evaluated the exogenous multi-enzyme mixture (beta-glucanase, cellulase, alpha-amylase, protease, xylanase, and phytase) at 250 mg/kg and multi-species probiotic (Bacillus subtilis, Lactobacillus acidophilus, L. delbrueckii, L. rhamnosus, L. plantarum, and Pediococcus acidilactici; 1 × 1010 CFU/g for each bacterial strain) at 2 g/kg on the performances of Siberian sturgeon. The final weight, weight gain, SGR, and PER were markedly enhanced while the FCR was reduced in fish fed multi-enzyme and probiotics premix (P<0.05). Multi enzymes and probiotic mixture significantly increased the total body protein content (P˃0.05). Multi enzymes and probiotic mixture also improved the digestibility of crude protein, dry matter, and crude lipids nutrients (P<0.05). The count of goblet cells, microvilli diameter, microvilli length, outer muscle wall diameter, and enterocyte total absorptive surface were markedly increased (P<0.05) by dietary multienzymes and probiotics mixture. The WBCs and neutrophils showed marked improvements (P<0.05). The levels of glucose, triglycerides, blood urea nitrogen, and total bilirubin were markedly higher in fish fed the control than fish fed the multi-enzymes and probiotics mixture (P<0.05). Significantly, Siberian sturgeon-fed dietary multi-enzymes and probiotics had improved lysozyme activity, total immunoglobulin, and total protein in the skin mucus and serum samples (P<0.05). Further, the serum complement C3 and C4 was higher in fish-delivered multi-enzymes and probiotic mixture than in control (P<0.05). In conclusion, dietary probiotics synergistically enhanced the activity of multi-enzymes and resulted in increased feed utilization, nutrient digestibility, and health status of Siberian sturgeon.
Specific importance of low level dietary supplementation of Lypomyces starkeyi CB1807 yeast strain in red sea bream (Pagrus major)
Authors: Shadrack Ronick Spenly , Manabu Ishikawa , Yokoyama Saichiro , Koshio Shunsuke , Miguel Vazquez Archdale , Yukun Zhang , Mzengereza Kumbukani , Seo Seok , Dossou Serge , El Basuini Mohammed F. 
Published: March 2022

Abstract
Most probiotic yeast supplement in fish exhibit beneficial effect at ≤1% of the dietary proportion. This study aimed at evaluating the specific effects of Lypomyces starkeyi CB1807 yeast strain supplemented at ≤1% of dietary proportion on the performance of juvenile red sea bream (Pagrus major, 1.9 ± 0.04 g). Five diets were supplemented with yeast at graded levels of 0% (control diet ‘CD1’), 0.05% (D2), 0.1% (D3), 0.5% (D4), and 1.0% (D5). After 45 days of feeding trial, significant (P<0.05) improvement was detected on final body weight (FBW) and body weight gain (BWG) in fish fed D3 and D5 compared to control. Low values of total cholesterol (T-Cho) and aspartate aminotransferase (AST) were recorded in fish groups fed on D2, D4, and D5, respectively. Fish fed on D3, D4 and D5 diets showed high (P<0.05) values of serum, mucus and liver lysozyme compared to control. Fish fed on D5 showed high values of total immunoglobulin (Ig) compared to control. Fish fed on D2 showed strong correlation with biological antioxidant activity (BAP), superoxide dismutase (SOD) and catalase activity (CAT). The biological antioxidant potential (BAP) activity in fish fed on D2 was significantly higher compared to control (P<0.05). The reactive oxygen metabolites (d-ROM) were significantly lower in fish fed on D2 and D3 compared to CD1 (P<0.05). Peroxidase activity was improved significantly (P<0.05) in fish fed on D3, D4 and D5 compared to control. The tolerance ability (LT50) of fish fed on D5 against low salinity stress was significantly higher compared to control (P<0.05). It was concluded that dietary benefits of spent L. starkeyi yeast at ≤1% showed considerable improvement in antioxidant capacity in red sea bream, P. major.
Embryo production by in vitro fertilization in wild ungulates: progress and perspectives – A Review
Authors: de Oliveira Santos Maria Valéria , Silva Alexandre Rodrigues , Pereira Alexsandra Fernandes 
Published: March 2022

Abstract
Wild ungulates are of fundamental importance for balancing ecosystems, as well as being the species of economic interest. Increasing concern over the accelerated population reduction of these species has resulted in the development of assisted reproduction techniques, such as in vitro fertilization (IVF), as a tool for conservation and multiplication. In the present scenario, IVF protocols were developed based on the methodologies used for domestic ungulates. Nevertheless, owing to the physiological and reproductive differences among the species, several factors associated with IVF and its relationship with the characteristics of the species of interest require clarification. In vitro conditions for the collection and selection of female and male gametes, oocyte maturation, sperm capacitation, co-incubation of gametes, and embryonic development can influence IVF results. Therefore, the present review considers the main advances in the methodologies already used for wild ungulates, emphasizing the strategies for improving the protocols to obtain better efficiency rates. Additionally, we discuss the conditions of each IVF stage, with emphasis on aspects related to in vitro manipulation and comparability with the protocols for domestic ungulates.