bluuebunny/crossref_metadata_2025 huggingface dataset:
Stages of stereotactic radiosurgery in the treatment of recurrent glioblastomas
Authors: Gryazov Andriy B. , Zemskova Oksana V. , Gryazov Andriy A.
Published: August 2022

Objective: to evaluate the effectiveness of stereotactic radiosurgery as a therapy method taking into account overall survival in patients with recurrent glioblastoma at all stages of treatment.
Materials and methods. A sample of patients (66 ailments) who were treated in 2016-2021 with a molecularly confirmed diagnosis of wild-type glioblastoma was analyzed. Only patients, who, were treated in several stages and as a rule, underwent stereotaxic radiosurgery (SRS), or SRS alone after a biopsy, or SRS in case of relapse, after surgery and radiotherapy, or SRS for subsequent relapses were selected. When evaluating the results, the following were taken into account: 1) age at the diagnosis, 2) volume of surgical resection, 3) use of radiation therapy, 4) use of adjuvant chemotherapy after SRS and response evluation criteria in solid tumors. Overall survival (OS) was assessed after diagnosis and at the time of SRS.
Results. Patients received SRS at an average 10 months after initial diagnosis. Median duration of follow-up was 8 months after SRS and 12 months after diagnosis, median OS for all patients was nine months (1 to 42 months) after SRS and 20 months (4 to 64 months) respectively. The median survival after SRS was 9 months (p=0.008; χ2=7.008). The median OS for younger patients (<50 years) was 32.5 months, for elderly patients  (>50 years)  was 14.8 months  (p=0.04; χ2=3.870). The median overall survival rate was 32.2 months in patients who received SRS 10 months after the diagnosis was made, and 16 months in those who received SRS earlier than 10 months (p=0.004, χ2=8.145). Radiosurgical doses ≥15 Gy were correlated with a mean survival rate of nine months and seven months in patients treated at doses <15 Gy (p=0.01; χ2=6.756).  In patients who received adjuvant therapy with bevacizumab and/or chemotherapy after SRS, the median OS was 12 months, in patients who did not receive additional therapy after SRS, it was 7 months (p=0.04, χ2=4.19).
Conclusions. Stereotactic radiosurgery promotes the effectiveness of glioblastoma treatment due to the possibility of carrying out this method at various stages of treatment. The overall survival of our patients depended on the period of SRS after diagnosis, patient age, radiation dose, and adjuvant chemotherapy.
UJI TOKSISITAS AKUT EKSTRAK ETANOL DAUN KACA PIRING (Gardenia jasminoides Ellis) TERHADAP TIKUS PUTIH BETINA (Rattus norvegicus L.) GALUR WISTAR
Authors: Rizkyanti Annisa Safira , Susanti Ressi , Purwanti Nera Umilia
Published: August 2022

Latar belakang. Kaca Piring (Gardenia jasminoides Ellis) telah digunakan sebagai obat tradisional. Daun Kaca Piring secara empiris digununakan untuk pengobatan hipertensi, nyeri pinggang, dan antidiabedes. Penelitian ini bertujuan untuk mengetahui pemberian dosis oral ekstrak etanol daun kaca piring pada dosis tunggal 24 jam terhadap perubahan perilaku, aktivitas psikomotor, perubahan bobot badan, dan indeks organ pada tikus putih betina (Rattus norvegicus L.) galur wistar. Metode. Daun Kaca Piring diekstraksi menggunakan metode maserasi dengan pelarut etanol 96%. Uji toksisitas akut dilakukan berdasarkan pedoman dari OECD (Organization for Economic Co-operation and Development) Nomor 425. Hewan uji terdiri dari kelompok kontrol, dosis 2000 mg/KgBB dan dosis 5000 mg/KgBB. Pengamatan dilakukan selama 14 hari. Perubahan berat badan dan indeks organ dianalisis menggunakan uji one way ANOVA pada perangkat lunak SPSS Versi 25. Hasil. Hasil menunjukkan hewan uji tidak mengalami mortalitas dengan nilai LD50 lebih besar dari 5000 mg/KgBB. Tidak terdapat perbedaan yang signifikan (p>0.05) terhadap berat badan dan indeks organ. Kesimpulan. Ekstrak etanol daun Kaca Piring tidak mempengaruhi parameter toksisitas akut dan termasuk kedalam kategori praktis tidak toksik.
Starting from the bottom: Coupling a genetic algorithm and pore network model for porous electrode design
Authors: van Gorp Rik , van der Heijden Maxime , Sadeghi Mohammad Amin , Gostick Jeffrey , Forner Cuenca Antoni
Published: August 2022

The microstructure of porous electrodes determines multiple performance-defining properties, such as the available reactive surface area, mass transfer rates, hydraulic resistance, and electronic conductivity. Thus, optimizing the electrode architecture is a powerful approach to enhance the performance and cost-competitiveness of electrochemical technologies. To this goal, the deployment of computational modeling has improved the fundamental understanding of reactive transport in porous electrodes; however, to date, it has mostly been used to simulate existing sets of materials. To expand our current arsenal of materials, we need to build computational frameworks that are predictive and can explore a large geometrical design space while being physically robust. Here, we present a novel approach for the optimization of porous electrode microstructure from the bottom-up that couples a genetic algorithm with a chemistry-agnostic electrochemical pore network model. In this first demonstration, we focus on optimizing redox flow battery electrodes. The genetic algorithm manipulates the pore and throat size distributions of an artificially generated microstructure with fixed pore positions by selecting the best-performing networks, based on the hydraulic and electrochemical performance computed by the model. For the studied VO2+/VO2+ electrolyte, we find an increase in the fitness of 75% compared to the initial configuration. The algorithm improves the fluid distribution by the formation of a bimodal pore size distribution containing preferential longitudinal flow pathways, resulting in a decrease of 73% for the required pumping power. Furthermore, the optimization yielded an 47% increase in surface area resulting in an electrochemical performance improvement of 42%. Our results show the potential of using genetic algorithms combined with pore network models to optimize porous electrode microstructures for a wide range of electrolyte composition and operation conditions.
Electrochemical Formation C-S Bonds from CO2 and Small Molecule Sulfur Species
Authors: Kornienko Nikolay , Li Junnan , Al-Mahayni Hasan , Chartrand Daniel , Seifitokaldani Ali
Published: August 2022

The formation of C-S bonds is an important step in the synthesis of pharmaceutical, biological, and chemical products. A very attractive green route to C-S bond containing species would be one driven through electrocatalysis using abundant small molecule precursors but examples within this context are largely absent from the literature. To this end, this work demonstrates the use of CO2 and SO32- as cheap building blocks that couple on the surface Cu-based heterogeneous catalysts to form hydroxymethanesulfonate, sulfoacetate and methane sulfonate for the first time, with Faradaic efficiencies of up to 9.5%. A combination of operando measurements and computational modelling reveal that *CHOH formed on metallic Cu is a key electrophilic intermediate that is nucleophilically attacked by SO32- in the principal C-S bond forming step. In all, the proof-of-concept for electrocatalytic C-S bond formation and mechanistic insights gained stand to substantially broaden the scope of the emerging field of electrosynthesis.
Iminologous Epoxide Ring-Closure
Authors: Yudin Andrei , Tien Chieh-Hung , Lough Alan
Published: August 2022

Herein, we apply the principle of iminology to the well-established epoxide ring-closure reaction. The synthesis of tetrasubstituted, nitrile-tethered epoxides can be achieved via activation of iminologous diols followed by fragmentation. Mechanistic study reveals the transformation to be stereoretentive, which is consistent with the concerted nature of the epoxide ring-closure.
Barrios marginales y discapacidad: ¿hacia dónde van los asentamientos latinoamericanos?
Authors: Gálvez Petzoldt Camila
Published: August 2022

El Objetivo de Desarrollo Sostenible 11 de la Agenda 2030 para el Desarrollo Sostenible de la ONU es lograr que las ciudades y asentamientos humanos sean inclusivos, seguros, resilientes y sostenibles. Sin embargo, este objetivo no puede ser alcanzado si las personas con discapacidad son excluidas de los progresos realizados en el desarrollo de los asentamientos humanos. El presente artículo analiza la intersección de dos tratados internacionales claves: la Agenda de Desarrollo Sostenible 2030 y la Convención sobre los Derechos de las Personas con Discapacidad, así como su relevancia en el contexto latinoamericano.
Confronting challenges of school-based management in a developing country
Authors: Jonathan S. Villanueva , Ruth A. Ortega-Dela Cruz
Published: August 2022

School-Based Management (SBM) has served as a key reform program, concretizing decentralization in the basic education sector in different parts of the world, including the Philippines. The study used qualitative research methods, including key informant interviews and focus groups of faculty and administrators, to explore the challenges of SBM in the area of curriculum and learning in a public secondary school. Results revealed that poor foundation of basic knowledge, inadequate school facilities and instructional materials, non-observance of time on task policy, students' misbehaviour and poor academic interest, low parental support, as well as errors in learners' materials were among the challenges being confronted by English, Science, and Mathematics (ENSCIMA) teachers that affect the successful implementation of the curriculum and learning. The study recommended different strategies, which include benchmarking activities through school-to-school partnerships, immersion activities, organization of a quality management team, remedial and intervention sessions, additional School Learning Action Cell (SLAC) and In-Service Training (INSET) sessions, student orientation, parents' summit, for a symposium, and write-shop. These activities, if collaboratively undertaken by various stakeholders, will help address the challenges that would result in efficient SBM, leading to a successful and quality education in the country.
Essays on Economic Impacts of Disasters: The Aggregate and Disaggregate Evidence
Authors:   , Ta Quy
Published: August 2022

This thesis is the product of three academic essays, of which each one attempts to answer a few questions related to the economics of disasters using both aggregate and disaggregate data. In the first essay, I examine the response of international reserves to external shocks by using a quasi-experiment of earthquakes on a panel of 103 countries. The results show that in the five years following a quake: (i) Countries exposed to it accumulate reserves ex-post for precautionary reasons, supported by the inflow of foreign assistance; (ii) Quake-prone countries tend to hold fewer reserves relative to the non-prone countries, suggested by the richer set of other disaster preventive measures in place for the former; (iii) The patterns of reserves holding post-earthquake vary with a country’s income level and other macroeconomic fundamentals. The second essay uses disaggregated microdata of New Zealand firms from 2001 to 2019 to quantify the short-to-medium impacts of the 2010/2011 Canterbury earthquakes on businesses. The findings show that the average annual investment of Canterbury firms over the period 2011-2019 is 2.2% higher than elsewhere. In terms of persistence, the immediate impact is just around 1.6% in 2011 and the estimates increase significantly over the next few years before gradually dropping since 2015. Regarding the heterogeneity by sector and firm size, the estimates seem to be generally influenced by the monetary damages caused by the earthquakes. In particular, these results are driven by the manufacturing (4.6%) and construction sectors (3.5%), followed by services (2.7%). Small and medium firms increased investment by 1.7% and 6.1% respectively. In terms of the financial sources for the reconstruction, affected firms in the region increased shareholder funds and long-term debt. In the third and last essay, I evaluate the 1968 H3N2 Flu pandemic’s economic cost in a cross-section of 52 countries. Using excess mortality rates as a proxy for the country-specific severity of the pandemic, I find that the average mortality rate (0.0062% per pandemic wave) was associated with a decline in output of 2.4% over the two pandemic waves. The estimates also suggest the losses in consumption (-1.9%), investment (-1.2%), and productivity (-1.9%) during the outbreaks. The study adds to the current literature new empirical evidence on the economic consequences of a past pandemic in light of the potential impacts of the Covid-19 pandemic on productivity.
Suplementasi madu menurunkan frekuensi batuk pada anak dengan bronkopneumonia
Authors: Millati Anni Himma , Pohan Vivi Yosafianti
Published: August 2022

Gejala umum yang sering dirasakan balita dengan bronkopneumonia adalah batuk. Intervensi keperawatan mandiri yang dapat dilakukan untuk mengatasi masalah batuk yaitu diantaranya dengan terapi komplementer madui, karena suplementasi madu dapat mengurangi atau menurunkan frekuensi batuk pada anak yang mengalami infeksi saluran nafas dengan Bronkopneumonia di Ruang Ayyub 3 Rumah Sakit Roemani Muhammadiyah Semarang.Desain penelitian yang digunakan adalah metode deskriptif dengan pendekatan studi kasus asuhan keperawatan menggunakan rancangan one group pre and post test yang dilakukan pada 2 responden. sebelum diberikan suplementasi madu responden 1 dan responden 2 mengalami frekuensi batuk berat yang diukur dengan menggunakan lembar observasi selama 3 hari sedangkan setelah diberikan suplementasi madu responden 1 dan responden 2  mengalami tidak batuk yang diukur dengan menggunakan lembar observasi selama 3 hari ditandai dengan responden tidak pernah mengalami batuk pada hari pertama sampai dengan hari ketiga frekuensi batuk mengalami penurunan. Efektifitas pemberian madu terhadap penurunan frekuensi batuk pada responden 1 dan responden 2 dengan bronkopneumonia sudah teratasi
Chinese College Students' Perceived Teacher Autonomy Support and Engagement: A Moderated Mediation Model
Authors: Han Chen , Huang Jian-Hao
Published: August 2022

The purpose of this study was to examine the correlation between perceived teacher autonomy support (PAS) and student engagement (SE), as well as the mediating role of learning motivation (LM) and the moderating role of the class climate (CC) among 1517 college students in Chinese universities. Survey questionnaires were used in gathering data, and the findings revealed that: (1) PAS had a significant positive impact on SE (B=0.966, p<0.001); (2) LM partially mediated the association between PAS and SE (B=0.084, p<0.001); (3) CC moderated the relation between PAS and LM (B=1.895, p<0.001); more specifically, favorable CC strengthened the effect of PAS on LM among college students. From the findings, this study contributes to a better comprehension of the influence of PAS on SE among Chinese college students. It is suggested higher education institutions and teachers should pay attention to college students' PAS, LM, and CC to improve college students' engagement.
O Programa de Pós-Graduação em Ensino de Química da UFRJ: histórico e autoavaliação
Authors: Oliveira Guilherme Cordeiro da Graça de , Almeida Rodrigo Volcan , Abreu Rozana Gomes de , Araújo Neto Waldmir
Published: August 2022

Este artigo tem por objetivo descrever e analisar o desenvolvimento e os desafios de um programa de pós-graduação na área de ensino. O PEQui – Programa de Pós-Graduação em Ensino de Química, do Instituto de Química (IQ) da Universidade Federal do Rio de Janeiro (UFRJ) iniciou suas atividades com o mestrado profissional em 2014 e teve na sua avaliação parcial, para o quadriênio 2013-2016, conceito 3 da CAPES. Neste texto, a ênfase concentra-se nas atividades do programa no quadriênio 2017-2020: as linhas de pesquisa, a produção intelectual, o corpo docente, os egressos, a autoavaliação, os desafios enfrentados em tempos de pandemia e as perspectivas futuras.
Pembelajaran Fisika secara Online dengan Aplikasi Seesaw Berdasarkan Scientific Based Learning untuk Peningkatan Kemampuan Berpikir Ilmiah
Authors: Prahestiningtyas Tatag , Sulisworo Dwi
Published: August 2022

Permasalahan pada penelitian ini dilatarbelakangi rendahnya tingkat pemahaman fisika di SMK Bhakti Mulia Blora pada pembelajaran online di era pandemi. Siswa merasa kesulitan dalam memahami materi secara online karena pemahaman konsep masih rendah dan tidak bisa melakukan praktikum secara langsung. Tujuan dari penelitian ini adalah meningkatkan pemahaman konsep fisika serta membantu kesulitan memecahkan masalah penerapan persamaan matematis sesuai kemampuan berpikir secara ilmiah. Metode pembelajaran adalah menggunakan Learning Management System (LMS ) bernama aplikasi Seesaw. Metode penelitian yang digunakan penelitian Kuantitatif dan Research and Development (R n D). LMS Seesaw dikembangkan pada pembelajaran Fisika melalui ScientificBasedLearning. ScientificBasedLearning merupakan metode berpikir yang systematis dan empiris, sesuai kehidupan nyata. Sedangkan kemampuan berpikir ilmiah adalah serangkaian proses pemikiran yang menggunakan akal budi dengan cara mempertimbangkan, memutuskan dan mengembangkan pengetahuan. Sampel penelitian siswa SMK Bhakti Mulia Blora kelas X sebanyak 30 siswa. Teknik pengumpulan data menggunakan instrumen angket metode USE untuk mengukur efektivitas aplikasi pembelajaran, dan lembar validasi untuk mengukur validitas bahan ajar. Berdasarkan angket hasil analisis data disimpulkan siswa yang setuju bahwa aplikasi Seesaw digunakan secara online pada pembelajaran fisika untuk meningkatkan kemampuan berpikir ilmiah sebesar 63%. Hal ini didukung hasil posttest penggunaan Seesaw untuk meningkatkan kemampuan berpikir ilmiah mengalami  kenaikan nilai siswa rata-rata sebesar 17%.Sedangkan pada aspek berpikir ilmiah terjadi peningkatan nilai rata-rata sebesar 24%. Kata kunci: LMS,Seesaw, Pembelajaran Fisika, ScientificBasedLearning, ScientificThinking
Uji Kelayakan E-LKPD Berbasis Problem Based Learning (PBL) Untuk Meningkatkan Keterampilan Proses Sains Siswa SMP
Authors: Safitri Wulan , Budiarso Aris Singgih , Wahyuni Sri
Published: August 2022

Penelitian ini bertujuan untuk mendeskripsikan kevalidan, kepraktisan, dan keefektifan E-LKPD berbasis PBL untuk meningkatkan keterampilan proses sains siswa SMP. Penelitian pengembangan ini menggunakan model ADDIE yang meliputi 5 langkah yaitu (1) Analyze, (2) Design, (3) Develop, (4) Implement, (5) Evaluate. Instrumen penelitian berupa lembar validasi, lembar observasi keterlaksaan pembelajaran, tes, dan angket respon siswa. Penilaian validitas diperoleh dari lembar validasi untuk mengetahui kevalidan E-LKPD. Sedangkan penilaian kepraktisan diperoleh dari lembar observasi keterlaksanaan pembelajaran dengan menggunakan E-LKPD berbasis PBL. Penilaian efektivitas dengan tes keterampilan proses sains berupa pretes dan postes yang diukur menggunakan N-gain, serta angket respon berdasarkan tanggapan dari siswa setelah menggunakan E-LKPD berbasis PBL. Hasil validasi E-LKPD berbasis PBL memperoleh persentase sebesar 85% dengan kriteria valid. Reliabilitas dengan Percentage Agreement (PA) sebesar 92% dengan kriteria reliabel. Kepraktisan memperoleh persentase 87% dengan kriteria sangat praktis. Keefektifan dilihat dari rerata pretes dan postes menunjukkan peningkatan dengan nilai N-gain sebesar 0,67 dengan kriteria sedang. Sedangkan respon siswa memperoleh persentase sebesar 81% dengan kriteria sangat baik. Kesimpulan penelitian ini adalah E-LKPD berbasis PBL layak digunakan dalam pembelajaran.Kata kunci: E-LKPD, PBL, Keterampilan Proses Sains
Penerapan Model Problem Based Learning Berbantuan Laboratorium Virtual PhET Untuk Meningkatkan HOTs Siswa SMA
Authors: Alfiah Siti , Dwikoranto Dwikoranto
Published: August 2022

Penelitian ini dilaksanakan untuk mengidentifikasi peran model Problem Based Learning (PBL) berbantuan laboratorium virtual PhET dalam meningkatkan HOTs siswa SMA. Penelitian ini berjenis penelitian kuantitatif beserta Pre-Experimental sebagai metode penelitian yang berbentuk one group pretest-posttest design. Tempat pelaksanaan penelitian di SMAN 17 Surabaya secara daring pada semester ganjil tahun pelajaran 2021/2022 dengan sampel penelitian 30 siswa kelas X MIPA 5 yang dipilih melalui teknik simple random sampling. Data penelitian ini dikumpulkan melalui metode tes tertulis berbentuk soal esai dengan kategori HOTs yang diuji validitas terlebih dahulu sebelum diterapkan dalam pembelajaran. Teknik analisis data dilaksanakan melalui uji normalitas, uji homogenitas, dan uji hipotesis melalui software SPSS 25 dengan taraf signifikansi sebesar 5% serta uji N-gain untuk mengidentifikasi level peningkatan HOTs peserta didik. Hasil analisis data menunjukkan bahwa data sampel homogen dan terdistribusi normal sehingga uji hipotesis dilakukan menggunakan Paired-Samples T-test dengan hasil nilai signifikansi (2-tailed) kurang dari 0,05 sehingga disimpulkan bahwa terdapat pengaruh model PBL berbantuan laboratorium virtual PhET pada peningkatan HOTs peserta didik dengan level peningkatan sedang dan N-gain 0,56.Kata kunci: PBL, Laboratorium Virtual, PhET, HOTs
Efektivitas Pembelajaran Daring Pada Materi Hukum Hooke Menggunakan LMS berbasis Edmodo
Authors: Muspa Rizky Merian , Sulisworo Dwi
Published: August 2022

This study aims to determine the effectiveness of online learning on hooke law material using edmodo-based lms, the method used is to analyze the questionnaire given to respondents via google form, the subject of this study is class XI SMA N 1 Lahat, this research divides 3 topics. In the survey, the use of Edmodo in terms of the aspect of ease, the use of Edmodo in terms of the aspect of language structure and use of Edmodo in terms of the aspect of presentation. Based on the survey results from the aspect of convenience in Figure 4, the data obtained respectively 3,867 - 3,8 - 3,73. Which means that it has an average in the good category. Next, the survey results from the aspect of language structure in Figure 5, respectively, obtained data from 3.8 to 3.93 - 3.73, which means that it has an average in the good category. And the survey results from the presentation aspect in Figure 6 respectively obtained data 3,867 - 3,867 - 3,93 which means that it has an average in the good category. Of the three types of surveys that have been conducted, it can be categorized that the results of this study are good, so it can be said that this research is able to increase the effectiveness of learning and is suitable for use in the learning process.Keywords: LMS, Effectiveness of Learning Physics, Edmodo.
Synthesis and Characterization of Schiff Bases Containing 1,2,3-Triazole Unit: Photophysical and Acetyl Choline (AChE) Inhibitory Properties
Authors: Şahin İ.
Published: August 2022

In this study, new salicylaldehyde derivatives containing a 1,2,3-triazole group (5a-c) and their Schiff bases (6a-c) were synthesized and their structures were characterized by FT-IR, 1H(13C) NMR and elemental analysis spectroscopic methods. The crystal structure of the triazole compound 5c was investigated by X-ray diffraction study. Then, UV-Vis absorption properties were studied and the effects of different solvents on absorption were investigated. In the UV-vis spectra, π-π* and n-π* transitions were observed in the range of 280-480 nm. Especially, the absorption band at 400-480 nm range for 6a-c in MeOH gave the idea that they were caused by tautomeric conversion from phenol-imine to keto-amine in their structure. Acetylcholinesterase Inhibitory activity studies are very important for research on the treatment of Alzheimer's disease, so the synthesized compounds were screaned for their AChE inhibitory activities. According to the results obtained, both 1,2,3-triazole compounds and Schiff bases showed comperable inhibitory activity. In particular, the activity of compound 6b (IC50: 12.85 ± 0.026 µM) was determined to be approximately considerably higher than the standard Galantamine (IC50: 139.4 µM).
DEVELOPMENT OF CREATIVITY OF FUTURE SPECIALISTS AT FOREIGN LANGUAGE CLASSES: CONDITIONS AND OPPORTUNITIES. SUBJECTIVE WELL-BEING
Authors: Durdas Alla , Harbuza Tetiana , Radchenko Yuliia , Starosta Hanna , Kostenko Olga
Published: August 2022

The article deals with the importance of development of future specialists’ creativity at foreign language classes. The concept of creativity has been disclosed; the conditions and opportunities for its development have been revealed. The problem of subjective well-being has been considered. The vision of creativity by researchers from different countries of the world has been represented: as the ability to create original and adaptive products; applicability and usefulness in resolving problems at hand; changeability over time and due to cultural and socio-economic realities; as a source of new technologies, methods and techniques of social work and productive ways of their application. Methods and techniques for development of creativity at foreign language classes have been suggested: asking open-ended or challenging questions; encouraging students to talk freely on various topics; finishing unfinished stories; creative writing in the form of self-invented stories, poems, plans, inventions; development of projects, etc. The methods and tools for improving and promoting future specialists’ creativity have been represented. The impact of creativity on subjective well-being at foreign language classes has been stated and considered. The effect of creativity on subjective well-being has been disclosed. The concept of well-being has been revealed as the state of being or doing well in life; happy, healthy, or prosperous condition; moral or physical welfare of a person or community. The connection of these aspects of well-being with the acquisition of a foreign language have been stated, which, apart from the cognitive gains, can contribute to person's social and emotional well-being.
Minería y ferrocarriles en la región de Pachuca y Real del Monte durante el porfiriato
Authors: Ortega Morel Javier
Published: August 2022

La minería en México constituye uno de los elementos mas distintivos de su historia. La explotación de la riqueza contenida en los minerales de la plata, ha sido el movil de la fundación de importantes ciudades y su incidencia en la economía y cultura ha sido fundamental en el proceso de configuración de un país.
Tula y su jurisdicción: arqueología e historia
Authors: Jiménez Abollado Francisco Luis
Published: August 2022

Tula y su jurisdicción: arqueología e historia pretende ser una prolongación en el tiempo del libro Tula. Más allá de la zona arqueológica (UAEH, 2033), que coordina Laura Elena Sotelo Santos, a 15 años de su edición. La importancia de esta publicación radicó en que fue el primer trabajo colectivo coordinado y realizado en el seno de la entonces recién nacida Área Académica de Historia y Antropología.
Measurement of radiological baseline data of the hazard radiation in bottled drinking water samples in Basrah/Iraq
Authors: Ramadhan Riyadh Mnade
Published: August 2022

An investigation was carried out on several radiological hazard indices in twenty three bottled drinking water samples that were collected from various locations in Basrah/Iraq. The specific activity of 238U, 232Th, 40K and 137Cs isotopes was measured using the surveillance and measurement (SAM) device, model 940-2G. The specific activity values of U-238, Th-232, K-40 and Cs-137 ranged as (0.029±0.001-3.017±0.003) Bq/l, (0.025±0.002-2.326±0.001) Bq/l, (4.706±0.002-161.560±0.001) Bq/l and (0.040±0.003-0.953±0.001) Bq/l, respectively. The calculation of many risk indices have been carried out for all drinking water samples. All results have agreed with those reported in published studies and all these obtained findings have been recognized to be below the worldwide limit values. Therefore, there is no significant radiological risk in drinking bottled water brands in Basrah governorate, Iraq.
PEMANFAATAN EKSTRAK DAUN RAMBUTAN SEBAGAI INHIBITOR KOROSI PADA PLAT BESI DALAM MEDIA AIR PAYAU
Authors: Andira Rizzki , Zulnazri Zulnazri , Bahri Syamsul , Azhari Azhari , Muarif Agam
Published: August 2022

AbstrakKorosi adalah peristiwa kerusakan atau penurunan mutu suatu logam akibat reaksi elektrokimia dengan lingkungannya. Penanganan masalah korosi dapat dilakukan dengan menambahkan inhibitor korosi dari ekstrak daun rambutan yang mengandung tanin dan dapat membentuk senyawa komplek dengan besi (III) oksida pada permukaan logam, sehingga terjadinya penurunan laju reaksi korosi.  Inhibitor korosi merupakan suatu zat yang jika ditambahkan ke dalam suatu lingkungan, dapat menurunkan laju korosi lingkungan itu terhadap suatu logam. Studi pemanfaatan ekstrak daun rambutan sebagai inhibitor  korosi pada plat besi dilakukan pada penelitian di laboratorium dengan menggunakan metode perendaman. Media korosif yang digunakan dalam penelitian adalah air payau yang telah ditambahkan inhibitor. Inhibitor yang digunakan merupakan inhibitor organik yang diperoleh dari ekstrak daun rambutan. Perendaman dilakukan dalam interval waktu 4 hari, 8 hari, 12 hari, 16 hari , dan 20 hari dengan konsentrasi inhibitor 0 ppm, 60 ppm, 120 ppm, dan 180 ppm. Laju korosi dihitung dengan menggunakan metode weight loss, hasil pengujian yang dilakukan menunjukkan bahwa penyerangan korosi secara merata terjadi dipermukaan logam, Besarnya laju korosi dinyatakan sebagai besarnya kehilangan berat benda uji per satuan luas permukaan per satuan waktu perendaman. Dari hasil penelitian menunjukkan bahwa laju korosi pada plat besi dalam lingkungan air payau menurun secara signifikan seiring meningkatnya konsentrasi inhibitor dan lamanya waktu perendaman. Penurunan ini terjadi karna adanya pembentukan lapisan protektif ekstrak tanin pada permukaan plat besi, sehingga melindungi plat besi dari serangan korosi. Laju korosi terendah dan efesiensi inhibisi tertinggi diperoleh pada perendaman 20 hari dengan konsentrasi 180 ppm yaitu  2,85 mmpy dan 81,06%
Elucidating the Impact of behavioral biases in Pakistan Stock Market: Moderating Impact of Financial Literacy
Authors: Rasheed Muhammad Haroon , Rafique Amir , Kalim Usama , Gul Faid
Published: August 2022

The current study focuses on some of the most commonly relied upon biases in decision making. The study aimed at understanding the influence of herding, overconfidence, anchoring, and loss aversion on the decision-making style of investor besides it also investigates the role of financial literacy, since the traditional paradigm of finance is of the view that the knowledge of finance is directly associated with the degree of irrational outcomes. To explore this linkage data from investors trading at Lahore, Karachi, and Islamabad is gathered. Structural equation modeling is used for establishing the proposed associations. The results revealed that behavioral biases significantly impact the decision-making of investors.  The results of moderation analysis presented that financial literacy plays a major role in de-biasing decision making. These findings can be extremely useful for investors, policymakers, and investment professionals. Not only to make optimal decision-making but also by providing a deeper understanding of the daily life stock market behavior.
Pengaruh Pupuk Daun Terhadap Pertumbuhan Dan Hasil Tanaman Cabai Rawit Varietas Dewata 43 Yang Ditanam Di Luar Musim
Authors: Umami Khaerina , I Komang Damar Jaya  , Dwi Ratna Anugrahwati
Published: August 2022

Penelitian ini bertujuan untuk mengetahui pengaruh lima jenis pupuk daun terhadap pertumbuhan dan hasil tanaman cabai rawit hibrida varietas Dewata 43 yang ditanam di luar musim. Perlakuan ditata dengan Rancangan Acak Kelompok non faktorial dengan 3 ulangan. Perlakuan-perlakuan tersebut adalah: perlakuan kontrol (A), POMI (B), X-ZO (C), Meroke Fitoflex (D), Bayfolan (E), dan Meroke Flex-g (F). Data hasil percobaan dianalisis menggunakan Analysis of Variance pada taraf 5% kemudian dilanjutkan dengan Duncan’s Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa pupuk daun berpengaruh terhadap pertumbuhan dan hasil tanaman cabai rawit hibrida varietas Dewata 43 yang ditanam di luar musim. Pertumbuhan dan hasil terbaik diperoleh dari perlakuan pupuk daun organik POMI.
UJI EFEK PROTEKTIF MADU PADA JARINGAN DUODENUM TIKUS JANTAN GALUR WISTAR YANG DIBERI PAJANAN ASPIRIN
Authors: Agung Agung Prasetyo
Published: August 2022

Latar belakang: Ulkus  peptikum  merupakan  kerusakan  lapisan  mukosa  biasanya  di lambung atau duodenum. Aspirin merupakan obat dari golongan NSAIDs yang menjadi penyebab ulkus peptikum. Madu memiliki aktivitas antioksidan dari senyawa yang terkandung dalam madu berupa  flavonoid dan asam fenolat. Noor et al membuktikan bahwa madu dapat melindungi tubuh dari efek toksik bahan kimia. Tujuan: Mengetahui efek protektif madu pada jaringan duodenum tikus yang diberi pajanan aspirin. Metode: Desain penelitian ini adalah randomized post test only control group. Penelitian ini menggunakan 30 ekor tikus yang dibagi ke dalam 5 kelompok: kelompok kontrol normal (KN), kelompok perlakuan M dosis I  (KP1) (1,55ml/kgBB), kelompok perlakuan M dosis II (P2 (3,1 ml/kgBB), kelompok kontrol positif (K+) (sukralfat 4 ml/kgBB), dan kelompok kontrol negatif (K-) (aspirin 400mg/kgBB). Madu diberikan secara oral selama 7 hari. Satu jam setelah pemberian madu, tikus diberikan aspirin  400 mg/kgBB .Tikus dikorbankan pada hari ke-8 dan organ duodenum diambil untuk dilakukan penilaian histopatologi. Analisis data menggunakan program SPSS versi 23.0 dengan Kruskal Wallis dilanjutkan Post Hoc Mann Whitney. Hasil: Didapatkan gambaran kerusakan yang lebih ringan pada kelompok perlakuan (KP1 dan KP2) dibandingkan dengan kelompok kontrol negatif (K-) (p<0,050). Kesimpulan: Madu memberikan efek protektif terhadap jaringan duodenum tikus yang diberi pajanan aspirin.
THYROID-ASSOCIATED OPHTHALMOPATHY WITH SUSPECTED SECONDARY GLAUCOMA
Authors: Marie Yuni Andari
Published: August 2022

Thyroid-associated ophthalmopathy (TAO) is a thyroid hormone imbalance thatmanifests in the eye. The most common TAO is in Grave’s Disease. TAO could increase theintraocular pressure and could cause a glaucoma optic neuropathy and therefore secondaryglaucoma could happen.
Analysis of mathematics problem-solving ability on plane figure subject based on van hieles theory at Junior High School
Authors: Ramadhania Deanti , Prayitno Sudi , Subarinah Sri , Arjudin Arjudin
Published: August 2022

This study aims to describe the ability to solve mathematical problems in Plane Figure Subject based on van Hiele's theory in class VIII students of SMP Negeri 1 Mataram in the academic year 2021/2022. The type of research used is descriptive qualitative, which produces data in the form of written or spoken words from people and observed behavior. The subjects in this study were students in class VIII-E at SMP Negeri 1 Mataram, totaling 36 students. The method of taking the subject in this study used purposive sampling, which was selected based on the objectives to be achieved. The data collection methods used are the van Hiele test and the flat wake problem-solving ability test, interviews, and documentation. The thinking level of students in taking the van Hiele test was: 20 students at level 0 (visualization) with a percentage of 55.56%, 13 students at level 1 (analysis) with a percentage of 36.11%, and 3 students at level 2 (informal deduction) with a percentage of 8.33%. Furthermore, students at each level of van Hiele's thinking were taken as representatives of each of the 2 subjects to carry out a problem-solving ability test. Based on the results of the research on the problem-solving abilities of students based on the Polya problem-solving stage, students who are at level 0 can understand the problem but have not been able to carry out the other Polya-solving stages. Students at level 1 can understand the problem and develop a settlement plan but have not been able to carry out the other stages of Polya solving. Students at the level can understand the problem, develop a settlement plan, and carry out a settlement plan but have not been able to re-examine. It shows that the higher the van Hiele thinking level of the students, the better their problem-solving abilities will be.
PENDAMPINGAN GURU IPA DALAM IMPLEMENTASI PERANGKAT PEMBELAJARAN BERBASIS ETNO-STEM DI SMP MUHAMMADIYAH 5 TULANGAN SIDOARJO
Authors: Sartika Septi Budi , Wulandari Fitria Eka , Rocmah Luluk Iffatur , Efendi Nur
Published: August 2022

Kondisi pandemi covid-19 saat ini, menuntut guru untuk cermat dalam memilih strategi pembelajaran. Selain mudah diimplementasikan, juga efektif dalam penerapannya. Strategi pembelajaran yang menggunakan kearifan lokal yang terintegrasi dengan sains, teknologi, enginering, dan matematika tepat untuk dipilih. Tujuan kegiatan abdimas ini adalah mendampingi guru IPA di SMP Muhammadiyah 5 Tulangan Sidoarjo untuk mengimplementasikan perangkat pembelajaran IPA berbasis etno-STEM. Guru IPA yang didampingi sejumlah 3 orang yang mengajar di kelas VII, VIII, IX masing-masing jenjang ada 3 kelas, dengan 1 orang guru yang melakukan implementasi di kelas VIII. Kegiatan ini dimulai dari pengembangan perangkat, implementasi perangkat, dan evaluasi perangkat pembelajaran IPA berbasis etno-STEM. Pada kegiatan pengembangan perangkat, dinyatakan valid dan layak digunakan meskipun melalui beberapa tahapan revisi. Pada tahap implementasi, guru dinyatakan mampu mengelola kelas dengan kategori baik, dengan kendala-kendala yang dapat diatasi sehingga tidak mempengaruhi proses pembelajaran, hasil belajar siswa juga mengalami peningkatan sebesar 0,6 artinya peningkatannya sedang. Pada kegiatan evaluasi perangkat pembelajaran, perlu dikaji kembali sesuai kendala-kendala yang ditemui pada saat implementasi sehingga diharapkan peningkatan hasil belajar dengan kategori besar. Kegiatan selanjutnya dapat dilakukan dengan pendampingan guru dalam pengimbasan implementasi perangkat pebelajaran IPA berbasis etno-STEM di kelas yang lain dengan materi yang berbeda.
PELATIHAN PEMBUATAN VIDEO PEMBELAJARAN MENGGUNAKAN CAMTASIA DAN OLIVE DALAM OPTIMALISASI PEMBELAJARAN DARING
Authors: Mahardika Andi Ichsan , Wiranda Nuruddin , Arifuddin Muhammad , M. Kamal  , Erlina Mila , Yani Putri
Published: August 2022

E-learning telah menjadi tulang punggung bagi pendidikan jarak jauh di dunia khususnya dimasa pandemi Covid-19 dan masa New Normal. Hampir seluruh dunia pendidikan saat ini telah menerapkan e-learning dalam kegiatan pembelajaran. Tanpa memiliki keterampilan dasar dan pengetahuan tentang literasi digital seperti video pembelajaran maka proses pembelajaran akan menjadi tertinggal. Techonological Pedagogical Content Knowledge (TPACK) saat ini telah menjadi kompetensi yang harus dimiliki oleh guru di era globalisasi. Hasil observasi terhadap guru tingkat SMA/MA di Kabupaten Balangan menunjukkan bahwa guru belum mampu membuat video pembelajaran untuk mereka gunakan dalam pembelajaran daring, para guru umumnya menggunakan video pembelajaran yang telah ada dari beberapa sumber online untuk digunakan sebagai media untuk menjelaskan materi. Salah satu upaya yang dapat dilakukan untuk membantu guru mengatasi kendala dalam membuat video pembelajaran adalah dengan mengadakan kegiatan pelatihan dan pendampingan pengembangan video pembelajaran. Pelaksanaan kegiatan penerapan PKM ini dibagi dalam tiga tahap yaitu tahap persiapan program, implementasi progam dan evaluasi program. Setelah kegiatan ini terlihat bahwa guru sudah mampu mengoperasikan aplikasi Camtasia dan Olive dengan baik dan terstruktur meliputi cara penginstallan, memasukkan bahan ajar, editing, dan export/menyimpan video. Kegiatan pelatihan video pembelajaran menggunakan camtasia dan olive untuk optimasi pembelajaran daring ini diharapkan dapat meningkatkan skill/keterampilan guru dalam pembuatan video pembelajaran.
UPAYA MENINGKATKAN PERKEMBANGAN ASPEK SENI ANAK MELALUI KEGIATAN MELUKIS DENGAN JARI DI TK GITA MAHARANI
Authors: Hikmawati Hikmawati , Takasun Takasun , Ariani Ni Kadek Kartika
Published: August 2022

Kegiatan pengabdian kepada masyarakat ini merupakan salah satu upaya untuk meningkatkan perkembangan aspek seni pada anak melalui kegiatan melukis dengan jari di TK Gita Maharani. Kegiatan ini dilaksanakan pada tanggal 5 November 2021 di TK Gita Maharani, yang beralamat di Ubung Kaja, Denpasar Utara, Bali. Peserta kegiatan merupakan anak usia dini sebanyak enam orang dengan usia 5 sampai 6 tahun. Metode kegiatan meliputi pembukaan, inti, recalling, dan penutup. Pada kegiatan inti terdapat tiga kegiatan yaitu: pertama (aspek kognitif), Mengerjakan Maze/mencari jejak Bunga Matahari; kedua (aspek fisik motorik), Bereksplorasi melalui kegiatan Menggunting dan menempel Pola Bunga; ketiga (aspek seni), Finger painting “Bunga Matahari”. Instrumen penilaian untuk aspek seni menggunakan unjuk kerja hasil karya. Kriteria penilaian terdiri atas 4 kategori yaitu BB (Belum Berkembang), MB (Mulai Berkembang), BSH (Berkembang Sesuai Harapan), dan BSB (Berkembang Sangat Baik). Hasil penilaian menunjukkan bahwa rata-rata perkembangan aspek seni anak berada pada kriteria: BSH (Berkembang Sesuai Harapan). Artinya, Anak dapat melukis Finger painting setangkai bunga Matahari dengan warna sesuai aslinya tanpa bimbingan. Kegiatan pelatihan perlu dilaksanakan secara terus-menerus agar kriteria perkembangan seni anak di TK Gita Maharani meningkat ke kriteria BSB (Berkembang Sangat Baik).
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS WEBSITE BAGI GURU SD IT QURRATU ‘AYUN KOTA GORONTALO
Authors: Mardin Herinda , Handani Uno Anisa , Despianti Sitti Resti , Lakutu Desy Nuraini
Published: August 2022

Tujuan dari kegiatan pengabdian ini adalah memberikan pelatihan pengembangan media pembelajaran berbasis website bagi guru SD IT Qurratu ‘Ayun Kota Gorontalo. Metode yang digunakan dalam pengabdian ini adalah metode ceramah dan tanya jawab dengan menggunakan pendekatan partisipatif aktif dan bimbingan teknis. Pelaksanaan kegiatan ini pada tanggal 28 Juni 2022 pukul 08.00-12.00 WITA bertempat di sekolah SD IT Qurratu ‘Ayun Kota Gorontalo. Peserta yang mengikuti kegiatan ini sebanyak 7 orang guru yang merupakan guru SD IT Qurratu ‘Ayun Kota Gorontalo. Kegiatan pelatihan pengembangan media pembelajaran berbasis website sangat dirasakan manfaatnya bagi guru-guru karena menambah wawasan dan pengetahuan mengenai media dan jenis media pembelajaran khususnya media pembelajaran berbasis website serta cara membuat media pembelajaran berbasis website serta mampu mengembangkan media tersebut sesuai dengan kreatifitas dan tema materi yang guru berikan kepada peserta didik di sekolah. Melalui pelatihan ini, peserta bersemangat dan antusias membuat dan mengembangkan media pembelajaran berbasis website sesuai dengan kreatifitas dan materi pelajaran yang diajarkan masing-masing guru di sekolah.
HUMAN CAPITAL OF UKRAINE: ESSENCE, INVESTMENT AND DEVELOPMENT
Authors:   National Transport University, Bazilyuk Antonina , Khomenko Viktoriia ,   National Transport University
Published: August 2022

The modern economy is developing rapidly, innovative methods and production technologies are being introduced, production processes are being automated, and capital management methods are being improved. The economic and innovative development of both the region and the state as a whole depends on the development of human capital. The availability of human capital affects the business and economic performance of the entity. It is important for the study of human capital that increasing investment in human capital will increase the value of human labor. Improving the professionalism, skills and other quality characteristics of employees are strategic objectives of enterprises. The issue of using human capital for sustainable economic and social development is revealed.
MODEL OF THE STATE-MANAGEMENT MECHANISM FOR THE DEVELOPMENT OF THE SPACE INDUSTRY
Authors:   Shupyk National Healthcare University of Ukraine, Koshova Svitlana
Published: August 2022

This article substantiates the importance of the strategic role of the space industry in the development of National economies and the Global economic system. A brief overview of the scientists' coverage of the issues of public administration of the space industry, directions and priorities of the state policy of development of this sphere is given. Distinctive features and characteristics of the space sphere are, outlined, such as the active use of the latest technologies and a long period from their development to practical implementation. The development of the Aerospace Industry as a segment of the Global high-tech market, the dynamics of products produced by the Global Aerospace Industry and trends and existing trends in the development of the industry are analyzed. It is, established that investments in the space industry in the short and long term affect the general state of the economies of countries, develop scientific and technical production potential of states. The dynamics of incomes of the world space industry for the period 2009–2017 is analysed, the directions of development of investment activity in the branch for the maximum contribution of the space industry to the development of the national economy are established. It is determined which sources and to what extent can be, used to maximize the contribution of the space industry to the development of the national economy.
Promotion Standards and Practices across the Business Cycle: Evidence from Korea
Authors: Hlasny Vladimir
Published: August 2022

Korean employers notoriously practice seniority-based personnel management, rather than one prioritizing workers’ skills or performance, and this has changed only slowly amid the evolving business landscape and advancing labor standards. This study contributes to understanding this phenomenon by assessing Korean firms’ promotion criteria and practices over the past decade across distinct phases of industry business cycles, and between the economy’s primary and secondary sectors. Primary-sector firms are shown to be less likely than secondary-sector firms to base their promotion decisions on the analysis of workers’ achievements and colleague ratings, but rather on their performance of core job duties. Primary-sector firms have more advancement steps within their management ranks, and longer wait time until promotion at all ranks. Secondary-sector firms are flatter hierarchically, featuring shorter time to promotion at all ranks and fewer advancement steps, but also a lower fraction of promotions based on special merit. Firms’ promotion practices change over the business cycle. During expansionary years, the hierarchical dispersion of workers within organizations widens, particularly among primary-sector firms, with more workers remaining as regular staff but more managers promoted to senior management. As firms recruit more regular staff, years to promotion to managerial positions, and the count of advancement steps increase. Business expansion induces firms to streamline promotions to management based on colleague ratings subject to lesser review of workers’ own achievements. Over the past decade, promotions by special merit have receded while those by colleague ratings have gone up. Firms are thus apparently not transitioning toward merit- and achievement-based promotions, and continue relying on subjective colleague ratings and job-content analysis in their stagnant hierarchical structures. This has implications for workers and for policymakers tasked with ushering in more inclusive, objective and meritocratic personnel management practices.