bluuebunny/crossref_metadata_2025 huggingface dataset:
Graphite-supported Ptn Cluster Electrocatalysts: Major Change of Active Sites as a Function of the Applied Potential
Authors: Munarriz Julen , Zhang Zisheng , Sautet Philippe , Alexandrova Anastassia N.
Published: August 2022

The oxygen reduction reaction (ORR) plays a key role in renewable energy transformation processes. Unfortunately, it is inherently sluggish, which greatly limits its industrial application. Sub-nano cluster decorated electrode interfaces are promising candidate ORR electrocatalysts. However, understanding the nature of the active sites on these catalysts in electrocatalytic conditions presents a formidable challenge for both experiment and theory, due to their dynamic fluxional character. Here, we combine global optimization with the electronic Grand Canonical DFT, to elucidate the structure and dynamics of sub-nano Ptn clusters deposited on electrified graphite. We show that under electrochemical conditions, these clusters exist as statistical ensembles of multiple states, whose fluxionality is greatly affected by the applied potential, electrolyte, and adsorbate coverage. The results reveal the presence of potential-dependent active sites, and hence, reaction energetics.
Probing the Separation Distance between Biological Nanoparticles and Cell Membranes Mimics Using Neutron Reflectometry with Sub-Nanometer Accuracy
Authors: Armanious Antonius , Gerelli Yuri , Micciulla Samantha , Pace Hudson , Welbourn Rebecca , Sjöberg Mattias , Agnarsson Björn , Höök Fredrik
Published: August 2022

Nanoparticle interactions with cellular membranes are controlled by molecular recognition reactions and regulate a multitude of biological processes, including virus infections, biological nanoparticle-mediated cellular communication, and drug delivery applications. Aided by the design of various supported cell membrane mimics, multiple methods have been employed to investigate these types of interactions, revealing information on nanoparticle coverage, interaction kinetics as well as binding strength; however, precise quantification of the separation distance across which these delicate interactions occur remains elusive. Here we demonstrate that carefully designed neutron reflectometry experiments combined with intricate theoretical modeling offer a means to quantify the distance separating biological nanoparticles from a supporting lipid bilayer (SLB) with sub-nanometer precision. The distance between the nanoparticles and SLBs was tuned by exploiting either direct adsorption or specific binding using DNA tethers with different conformations, revealing separation distances of around 1, 3, and 7 nm with nanometric accuracy. We also show that NR provides precise information on nanoparticle coverage, size distribution, material composition, and potential structural changes in the underlying planar SLB induced upon nanoparticle binding. The precision with which these parameters could be quantified should pave an attractive path for investigations of the interactions between nanoparticles and interfaces at length scales and resolutions that were previously inaccessible, but crucial for gaining in-depth understanding of the molecular recognition reactions responsible for the interactions between inorganic and biological nanoparticles with cellular membranes.
Power of play: How playing affects cooperation skills
Authors: Sohrabi Tayebeh
Published: August 2022

This study examined the effects of group games on cooperation skills in female elementary students. Two classes of elementary female students were assigned as an experimental or a control group. A quasi-experimental method for the evaluation and comparison of cooperation development was used. The Measurement of Competitive-Cooperative Attitudes (Martin and Larsen 1976) was administered to gather data. A T-test was done to examine the hypothesis. A pre-test was performed to measure cooperation skills development and see whether they are comparable. Then, the experimental group played the selected group games, while the control group continued the previous curriculum. A middle test was conducted after six weeks. There were no meaningful differences between the groups. As it was predicted that time would be a factor that affected the results, the program continued for another six weeks. Finally, a post-test was conducted, revealing that group games can increase cooperation skills (p< 0/05).
Students’ Perceptions of the Benefits of Scholastic Chess Instruction
Authors: Chitiyo George , Zagumny Lisa , Littrell Michael N , Besnoy Kevin , Akenson Ashley B , Davis Krista M , Ablakwa Cephas , Lastres Marlana
Published: August 2022

This paper explores students’ perceptions of the benefits of chess-based instruction as part of an evaluation of a Chess in Schools (CIS) program implemented in 2017-2018 by a State Department of Education in the southeastern United States. The data were collected using a cross-sectional survey administered to students at the end of the academic year after one year of exposure to the CIS program. Results from the student survey responses (n = 1,286) indicated that the majority of students across all grade levels felt they had experienced a variety of positive outcomes as a result of their exposure to scholastic chess-based instruction. These perceived positive outcomes are beneficial for understanding the holistic impact of chess-based learning as they provide insight beyond only measuring students on a metric such as a test score or GPA.
PhET Simulations in Undergraduate Physics
Authors: Saudelli Mary Gene , Kleiv Robin , Davies Jessica , Jungmark Martin , Mueller Rebecca
Published: August 2022

Computer simulation educational technologies provide a convenient way of augmenting learning. Simulation technologies have been used and researched in higher education classrooms in fields such as medicine (e.g: Al-Elq, 2010), nursing (Kim, Park & Shin, 2016), and chemistry (Cheng, 2017), among others.  The University of Colorado Boulder has created a large number of Physics Education Technology (PhET) computer simulations relevant to concepts in Physics, Chemistry, Biology, Earth Science and Mathematics. These PhETs have been studied in relation to teaching in elementary and secondary schooling (i.e. Hensberry, Moore, Perkins, 2015). However, there is a notable gap in the literature that speaks to the connection of simulation based technologies, learning theories, and pedagogy in practice relation to teaching Physics in higher education.  This action research study seeks address that gap by exploring the role of the specific and intentional inclusion of Physics Education Technology (PhET) in the curriculum and teaching practice of an undergraduate Physics class in a Canadian university.  Findings centre on the theme of teaching practice change, and discovery that PhETs have value as a more capable peer in relation to Vygotsky’s (1978) zone of proximal development.
Enhancing the Diffusion in Underdamped Space-Periodic Systems by Applying External Low-Frequency Fields
Authors: Мarchenko Ivan G. , Аksenova Viktoriia Yu. , Marchenko Igor I.
Published: August 2022

This paper is devoted to the studies of the opportunities for the intensification of the particle diffusion in the periodic structures, for example, the crystals that are exposed to the action of the time-periodic fields of a different nature. These can be acoustic or electromagnetic fields. The trivial one-dimensional model of the motion of the particles in the potential lattice field under the thermal equilibrium has been used. The paper studies the interaction of rectangular fields with the frequencies less than 0.01 ω0, where ω0 is the frequency of natural small vibrations of the particles in the systems with the low dissipation. The selected friction coefficient in dimensionless units is equal to γ'=0.03. The amplitude dependence of the intensification of the diffusion D under the action of the fields of a different frequency has been studied. It was shown that the diffusion coefficient can be increased by several orders of magnitude by applying the field of an appropriate amplitude and frequency. A maximum diffusion intensification is attained at ω→0. A maximum attained value of the diffusion coefficient at the periodic force corresponds to the case of the action of the constant force. However, at low frequencies a maximum intensification is only possible in the narrow range of field amplitudes F'oc γ'. A further increase in the field amplitude results in a decrease of the diffusion coefficient and it attains the value of the coefficient of the particle diffusion in the viscous medium Dvis=k'T'/γ', where k' is the Boltzmann coefficient and T' is the temperature. An increase in the frequency of the external force results in the extension of the range of forces at which D>Dvis, however the value of the diffusion intensification is decreased. It was shown that the exceed of a certain threshold value of the amplitude of the external field results in the gain of the diffusion coefficient at least by the value of η=(k'T'eε/k'T')/(γ"D0, where ε is the value of the energy barrier during the passage of the particle from one cell of the one-dimensional lattice to another. The obtained data open prospects for the development of new technologies to exercise control over diffusion processes. It is of great importance for the production of nanomaterials with the specified structure, creation of the surface nanostructures, etc.
Structure and Physical Properties of Cast and Splat-Quenched CoCr0.8Cu0.64FeNi High Entropy Alloy
Authors: Kushnerov Oleksandr I. , Bashev Valerii F.
Published: August 2022

The article investigates the structure and physical properties of the multicomponent high-entropy alloy CoCr0.8Cu0.64FeNi in the cast and quenched state. The composition of the alloy under study is analyzed using the criteria available in the literature for predicting the phase composition of high-entropy alloys. These parameters are based on calculations of the entropy and enthalpy of mixing and also include the concentration of valence electrons, the thermodynamic parameter Ω, which takes into account the melting point, entropy of mixing, and enthalpy of mixing. Another important parameter is the difference in atomic radii between the alloy components δ. Cast samples of the CoCr0.8Cu0.64FeNi alloy of nominal composition were prepared on a Tamman high-temperature electric furnace in an argon flow using a copper mold. The weight loss during the manufacture of ingots did not exceed 1%, and the average cooling rate was ~ 102K/s. Thereafter, the cast ingot was remelted, and films were obtained from the melt. The splat quenching technique used in this work consisted of the rapid cooling of melt droplets when they collide with the inner surface of a rapidly rotating (~ 8000 rpm) hollow copper cylinder. The cooling rate, estimated from the film thickness, was ~ 106 K / s. X-ray structural analysis was performed on a DRON-2.0 diffractometer with monochromatic Cu Kα radiation. Diffraction patterns were processed using the QualX2 program. The magnetic properties of the samples were measured using a vibrating sample magnetometer at room temperature. The microhardness was measured on a PMT-3 device at a load of 50 g. In accordance with theoretical predictions confirmed by the results of X-ray diffraction studies, the structure of the alloy, both in the cast and in the quenched state, is a simple solid solution of the FCC type. The lattice parameters in the cast and liquid-quenched states are 0.3593 nm and 0.3589 nm, respectively. Measurements of the magnetic properties showed that the CoCr0.8Cu0.64FeNi alloy can be classified as soft magnetic materials. In this case, quenching from a liquid state increases the coercivity. On quenched samples, increased microhardness values were also obtained. This can be explained by internal stresses arising during hardening.
Fundamental Physical Properties of LiInS2 and LiInSe2 Chalcopyrite Structured Solids
Authors: Kumari Jyoti , Tomar Shalini , Sukhendra Sukhendra , Choudharya Banwari Lal , Rani Upasana , Verma Ajay Singh
Published: August 2022

For the couple of chalcopyrite compounds, we have theoretically studied the various properties for example structural, electronic optical and mechanical properties. The band structure curve, the density of states as well as the total energy have been investigated with the help of ATK-DFT by using the pseudo-potential plane wave method. For the LiInS2 and LiInSe2 chalcopyrites, we have found that these compounds possess direct band gap; which is 3.85 eV and 2.61 eV for LiInS2 and LiInSe2 respectively. It shows that the band gap is decreasing from ‘S’ to ‘Se’ as well as the B/G ratio called Pugh’s ratio is 2.10 for LiInS2 and 2.61 for LiInSe2 so these compounds are ductile in nature also these compounds are found to be mechanically stable. The study of this work display that the couple of these chalcopyrite compounds can be the promising candidate for the substitution of absorbing layer in the photovoltaic devices.
The Construction of Campus Visual Culture
Authors: Wang Shu
Published: August 2022

At present, with the development of information technology, visual culture has greatly influenced all aspects of life. Therefore, schools at all levels and types should focus on the construction of campus visual culture, which is a conducive way to actively and effectively carry out moral education, at the same time play its irreplaceable role. Campus visual culture may function as ear fumigating and eye staining. It can not only promote all-round development of students, but also improve their independent personality and ingenuity. This paper is mainly discussing the visual culture, the construction of campus visual culture, the significance of campus visual in art and art education, and the relationship between them.
Handling of the relationship between designer identity and material in architecture with a phenomenological approach
Authors: ÖZÇAM Işıl
Published: August 2022

Today, with the developments in production tools, computer modeling programs and communication technologies, the hegemony of vision in architecture is getting stronger. The complexity and speed of modern life require stimulations that are effective at once, and the design is reduced to a point of view that is evaluated mainly through the sense of sight and measured according to the levels of showing and being shown. However, architecture is a concept that can be perceived and explained through multi-sensory experiences, with which people interact mentally, perceptually and physically. The importance of integrated experience in architectural space was understood with the phenomenological philosophy and the subject-space relationship started to be examined by architects and thinkers; the role of the senses other than the eye has begun to be considered. The phenomenological approach, which focuses on human experience, tries to evaluate spaces with an understanding in which bodily movement and sensation come to the fore. In the works of architects who approach design with this perspective, the use of elements such as texture, surface structure, details, natural light, and especially the material, which is one of the main elements that give the building its identity, is at the forefront. The aim of this article is to examine contemporary architects, who stand out with their use of materials, through their architectural works. Within this scope, Steven Holl in the way materials relate to context, Tadao Ando with the interaction of light, material and nature, Peter Zumthor with the reinterpretation of old values through materials, Kengo Kuma dealing with material-form relationship with an experimental way, were selected within the scope of the article as examples of contemporary architects whose designer identities are identified through the way they use materials; and their works were examined. In the research, the sources that will form the basis for the subject were examined by the literature review method, the collected design samples were analyzed and interpreted.
Gestão democrática no ensino privado: a experiência de uma instituição no interior paulista
Authors: Souza Everton Henrique de , David Alessandra
Published: August 2022

Presente nas pautas de políticas públicas do governo brasileiro, a gestão democrática do ensino ganhou maior enfoque a partir década de 1980 com a promulgação da Constituição Federal e posteriormente com a Lei de Diretrizes e Bases da Educação Nacional
Assistance in management of network-based school administration e-archives (cloud)
Authors: Rina Lelahester , Sugiarto Agus
Published: August 2022

The development of science and technology has had a major impact on all aspects of work, one of which is the management of office administration. Office work that continues to change is how to manage office document archives carried out electronically for work efficiency. The conditions at the Satya Wacana Christian High School Salatiga in the initial interviews and observations showed that the process of data input and filing of report cards and diplomas was still carried out by being bundled and stored on office furniture. School administrative documents have not been backed up electronically to anticipate archive loss and data security. This resulted in the need for physical document archive storage space quite a lot, including filing cabinets and archive rooms. This activity has the aim of providing understanding and skills of electronic archives (e-archive) in managing school administration through the network (cloud). The program implementation method is carried out by providing training and assistance in managing school administration electronically based on a network (cloud). The results of the activity show that education personnel is able to manage school administrative documents electronically using the network (cloud) well. Education staff can group several archives into active and inactive archives and their management is directed at electronic documents through scanning or scanning for digital archive management.
Training on making rice straw-based compost for farmer group in Prafi District, Manokwari Regency
Authors: Santoso Budi , Hariadi Bambang Tjahyono , Seseray Daniel Yohanes
Published: August 2022

Farmers in Prafi District often experience problems with the availability of inorganic fertilizers, so it is necessary to provide organic fertilizer. The objectives were (1) to provide insight into the role of environmentally friendly fertilizers for soil and plants; (2) to transfer knowledge and technology for composting based on rice straw waste; (3) to assist farmers in Prafi District, in overcoming the problem of scarcity and high prices of fertilizers.  This training was held in Aimasi Village, Prafi District, which was attended by 24 members of Harapan Makmur group and Petani Peternak Terpadu Sebelas group.  The training included preparation of materials, counseling, and practice, application of compost to plants, and evaluation. The results of the activity showed that the participants gave a very good response to the introduction of composting technology made from a mixture of rice straw and cow feces.  Farmers were able to make compost, so there was no need to buy fertilizers used for planting vegetables and fruits.  Moisture content, organic matter, C-total, and N-total of rice straw-based compost were within the criteria of SNI compost. It was concluded that most of the farmers had understood the material provided and had been able to independently make compost with good quality.
Improving the pedagogic competence of Pandhega Jaya Christian High School teachers through making learning videos
Authors: Boelan Erly Grizca , Baunsele Anselmus Boy , Kopon Aloisius Masan , Tukan Maria Benedikta , Leba Maria Aloisia Uron , Komisia Faderina
Published: August 2022

The development of technology today has had a very significant impact in the world of education, one of which is the creation of innovative learning media so that it can be a solution for teachers in creating a more interesting learning atmosphere. In line with this, teachers must be able to adapt, one of which is increasing their competence, especially pedagogic competence. The objectives of this activity are 1) to improve teacher learning and creativity in preparing media; and 2) solving problems faced by teachers in making learning videos; and 3) introducing software/applications that are easy to use in making learning videos. This service activity was carried out at Pandhega Jaya Christian High School as a partner school. The method of service used is in the form of training. The stages of training activities include: preparation, implementation, monitoring and evaluation. The result of this activity is an increase in the ability of teachers to use technology-based media. This can be seen from the teachers being able to make learning videos using an android/ios-based application, namely Capcut. The whole series of activities went well and the participants looked so enthusiastic and followed the whole series of activities to completion.
Effect of ACE Inhibitor Therapy on Mortality in COVID-19 Patients with Hypertension: Meta-Analysis
Authors: Zainal Dwi Trisnawati
Published: August 2022

Background: Acute respiratory syndrome Corona Virus 2 (SARS-CoV-2) can trigger the occurrence of respiratory infectious disease Coronavirus Disease 2019 (COVID-19). Patients who have comorbid health problems such as hypertension, chronic liver, cardiovascular and diabetes mellitus are more likely to experience deterioration and death. ACE inhibitor therapy in patients with hypertension has a therapeutic effect in lowering blood pressure and is able to reduce mortality rates in COVID-19 patients, but the benefits of ACE inhibitors in patients with COVID-19 are still uncertain. This study aims to determine how much influence ACE inhibitors have on COVID-19 patients with hypertension on mortality rates.Subjects and Method: This study is a systematic review and meta-analysis with the following PICO, population: COVID-19 patients with hypertension. Intervention: administration of ACE inhibitor therapy. Comparison: therapy other than ACE inhibitors. Outcome: mortality. The articles used in this study were obtained from several online databases, including Science Direct, PubMed and Google Scholar. The keywords used in the article search were: “ACE inhibitor” AND “COVID-19” AND “Hypertension” AND “mortality”. The articles included are full-text English with a cohort study design from 2020 to 2021 and report the odds ratio in multivariate analysis. The selection of articles was carried out using the PRISMA flow chart. The articles were analyzed using the Review Manager 5.4. application.Results: A total of 4 cohort studies involving 4,998 COVID-19 patients from America, China and Italy were selected for systematic review and meta-analysis. The data collected yielded information that COVID-19 patients with hypertension who were given ACE inhibitors reduced the risk of mortality 0.67 times compared to COVID-19 patients with hypertension who were not treated with ACE inhibitors (aOR= 0.67; 95% CI= 0.36 to 1.26; p= 0.210).Conclusion: ACE inhibitors can reduce the risk of mortality in COVID-19 patients with hypertension.
Keywords: COVID-19, hypertension, ACE inhibitors, mortality.
Correspondence:Dwi Trisnawati Zainal. Social Security Administrator for Health, Madiun, East Java. Jl. Timor 6 Madiun, East Java, Indonesia. Email: dwitrisnawatiz@gmail.com. Mobile: 081331282009.
The Effectiveness of Wearing Mask and Physical Distancing in Preventing the COVID-19 Transmission
Authors: Widyawardani Tri Nyantosani , Pamungkasari Eti Poncorini , Murti Bhisma
Published: August 2022

Background: Coronavirus Disease 2019 (COVID-19) is an infectious disease caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). The increase in the number of cases was rapid, and spread to various countries in a short time. Based on epidemiological and virological studies, it has been proven that COVID-19 is transmitted from symptomatic (symptomatic) people to other people who are in close proximity through droplets and aerosols. The application of health protocols is very effective in preventing transmission. Wearing masks, keeping a distance and washing hands are very important in preventing the spread of COVID-19.Subjects and Method: This study is a meta-analysis using the PICO model. The population is the general public (adults over 18 years), the intervention is to wear masks properly and keep a distance. The comparison is not wearing a mask properly and not keeping a distance. The outcome is prevention of the spread of COVID-19. The articles used in this study were obtained from three databases, namely Google Scholar, PubMed, and Science Direct. The keywords to search for articles were “mask” AND “covid transmission” “physical distancing” AND “cross sectional study”, from 2019 to 2021. The selection of articles was carried out using the PRISMA flow diagram. Articles were analyzed using the Review Manager 5.3 application.Results: A total of 9 case studies from the African, American and Asian continents were selected for systematic review and meta-analysis. The results showed that the use of masks was 2.10 times effective in preventing transmission of COVID-19 and was statistically significant (aOR= 2.10; 95% CI= 1.54 to 2.85; p<0.001). Maintaining an effective distance of 2.35 times in preventing transmission of COVID-19 and statistically significant (Aor= 2.35; 95% CI= 1.44 to 3.83; p<0.001).Conclusion: Wearing a mask and keeping a distance is effective in preventing the spread of COVID-19.
Keywords: mask, physical distancing, covid transmission
Correspondence:Tri Nyantosani Widyawardani. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir. Sutami 36A, Surakarta 57126, Central Java, Indonesia. Email: nyantosani@gmail.com. Mobile: +62811284836.
Meta-Analysis: Effect of Oral Contraceptives on Breast Cancer
Authors: Hanifah Siti Nur , Murti Bhisma , Pamungkasari Eti Poncorini
Published: August 2022

Background: Breast cancer is a disease characterized by abnormal cell growth in the breast. Until now, breast cancer is a life-threatening disease in women and is the main cause of death among the female population. Oral contraceptives or pills are one of the risk factors for women developing breast cancer. This study aims to determine the effect of oral contraceptives on the incidence of breast cancer.Subjects and Method: This research is a meta-analytical study and a systematic review. The articles used were obtained from several electronic databases including PubMed, Google Scholar and ScienceDirect. The keywords to search for articles were as follows: Determinant OR risk factor AND breast cancer AND hormonal contraceptive OR oral contraceptive AND case control study. The article under study is a full text article with an observational study design. Articles were collected using the PRISMA diagram, and analyzed using the Review Manager 5.3 application.Results: A total of 9 case control studies involving 6,811 women with breast cancer from several countries in Asia, Africa, and North America were selected for meta-analysis and systematic review. The data collected showed that women who used oral contraceptives had a risk of developing breast cancer as much as 1.82 times than those who did not use oral contraceptives (aOR= 1.82; 95% CI= 1.43 to 2.33; p<0.001).Conclusion: Use of oral contraceptives increases the risk of developing breast cancer.
Keywords: oral contraceptives, breast cancer.
Correspondence:Siti Nur Hanifah. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir. Sutami 36A, Surakarta 57126, Central Java. Email: sitinurhanifah21@yahoo.com. Mobile: 085204219736.
Analisis Hasil Belajar Siswa Kelas VIII pada Materi Segiempat dengan Menggunakan Grid Paper
Authors: Husenti Nadya , Oktiningrum Wuli
Published: August 2022

Penelitian ini bertujuan untuk mengetahui dan mendeskripsikan hasil belajar siswa kelas VII MTs Ma’arif Sidomukti pada pokok bahasan segiempat yang menggunakan grid paper sebagai media pembelajarannya. Alasan penelitian ini dikarenakan dari hasil pengamatan sebelum penelitian dilakukan bahwa dalam pembelajaran di kelas, guru mengajarkan materi tanpa menggunakan media manipulatif. Metode penelitian yang digunakan yaitu metode deskriptif dengan pendekatan kualitatif, subjek dari penelitian ini adalah lembar jawaban siswa kelas VII MTs Ma’arif Sidomukti Gresik yang sebanyak 32 siswa. Hasil penelitian ini menunjukkan sebanyak 37,5 % siswa melakukan kesalahan konseptual, 43,75 % melakukan kesalahan procedural, dan 0,09 % melakukan kesalahan kalkulasi.
Olivier Christin. Vox Populi. Una historia del voto antes del sufragio universal
Authors: Ibarra Dávila Alexia
Published: August 2022

s. r.
La etnohistoria reorientada
Authors: Salomon Frank
Published: August 2022

s. r.
Experiencias independentistas, experiencias nacionales:
nota sobre los comentarios de Marcela Ternavasio y Fabio Wasserman
Authors: Pimenta João Paulo
Published: August 2022

s. r.
Analisis Efisiensi Produksi dan Pendapatan Usahatani Bunga Krisan di Desa Cikanyere, Kecamatan Sukaresmi, Kabupaten Cianjur
Authors: Alfarezy Akbar , Hadianto Adi
Published: August 2022

Bunga krisan merupakan salah satu komoditas unggulan di Kabupaten Cianjur dan Kecamatan Sukaresmi adalah salah satu kecamatan di Kabupaten Cianjur yang memiliki luas panen terbesar untuk bunga krisan namun produktivitasnya berfluktuasi. Produktivitas yang tidak menentu mengindikasikan penggunaan input yang belum efisien. Tujuan dari penelitian ini adalah 1) menganalisis faktor-faktor yang memengaruhi produksi bunga krisan di Desa Cikanyere, Kecamatan Sukaresmi, Kabupaten Cianjur, 2) menganalisis efisiensi produksi bunga krisan, dan 3) menganalisis pendapatan usahatani bunga  krisan. Analisis data dilakukan dengan menggunakan fungsi produksi Cobb-Douglas dan estimasi dengan Ordinary Least Square (OLS), Nilai Produk Marginal untuk analisis efisiensi, dan analisis pendapatan untuk menganalisis pendapatan usahatani bunga krisan. Hasil penelitian menunjukkan bahwa faktor yang berpengaruh signifikan dan bertanda positif terhadap produksi bunga krisan adalah tenaga kerja dan pestisida, serta penggunaan input belum efisien sehingga diperlukan penambahan tenaga kerja, pupuk NPK, pupuk kandang, pestisida dan lahan serta pengurangan jumlah bibit. Berdasarkan hasil analisis pendapatan dapat disimpulkan bahwa usahatani bunga krisan menguntungkan karena nilai R/C rasio lebih dari satu.
PELESTARIAN RUMAH PANGGUNG (RUMAH TRADISIONAL BERBAHAN DASAR KAYU) DI DESA PENANGGUNGAN, TANGGAMUS
Authors: Susanti Leni , Febryano Indra Gumay , Fitriana Yulia Rahma , Hilmanto Rudi
Published: August 2022

The traditional wooden house has become a symbol for the indigenous people of Lampung. The research objective is to explain the factors that influence the community to maintain its traditional wooden houses. This research used the qualitative approach within a case study method in Penanggungan Village, Tanggamus District, Lampung Province. By collecting data through in-depth interviews, involved observations, and documentation studies, then analyzed some factors that influence the community to maintain the stilt house. The results showed that the local community held its wooden-based stage due to various factors, especially: cultural, heritage, raw materials, community economic conditions, public knowledge, and government policies. The government needs to make local regulations to maintain the existence of the remaining stilt houses and provide subsidies to the community to maintain its sustainability. In addition, the cultivation of the types of wood that used and its types substitution needs to be encouraged to avoid the scarcity of raw materials for stilt houses.
PETA KERAWANAN BANJIR SUB DAS CILUTUNG BERDASARKAN DATA GEOSPASIAL
Authors: Nasihin Iing , Kosasih Dede , Rahman Rahman
Published: August 2022

A Flood is a natural phenomenon that causes material or non-material losses. The availability of geospatial information can be used to analyze the level of flood susceptibility. The purpose of this study was to identify and map flood-prone areas in the Cilutung sub-watershed based on geospatial data, namely land use and cover conditions, soil type, slope class, and rainfall. The method used in this study is weighting and scoring in geographic information systems (GIS). Based on the analysis, there are 4 classes of flood susceptibility in the Cilutung sub-watershed with the classification of safe, less vulnerable, moderate, and vulnerable. The distribution of flood-prone areas is almost spread over the entire Cilutung sub-watershed area, including the districts of Argapura, Banjaran, Bantarujeg, Cikijing, Cingambul, Lemahsugih, Maja, Majalengka, Malausma, Panyingkiran, Talaga, Cisitu, Jatigede, Jatigede, Tomo, and Wado. Medium class with an area of ​​22579 ha (36%), vulnerable class 18543 ha (30%), less vulnerable class 17883 ha (29%), safe class 2979 ha (5%). The most dominant parameters that cause flood vulnerability are flat slope 0-8%, latosol soil type, and land use in the form of rice fields, these parameters are spread in the southern and northern regions.
Redes sociales virtuales, autoestima, rendimiento académico y hábitos de estudio en estudiantes de enseñanza media de dos comunas de la Provincia de Concepción, Chile
Authors: Vidal Gutiérrez Daisy , Foreman Higuera Scarlett Ninoska , Molina Romero Bernardita Paz
Published: August 2022

El presente estudio tuvo por objetivo indagar la relación entre el uso de redes sociales virtuales con autoestima, rendimiento académico y hábitos de estudio en estudiantes de segundo y tercero medio de establecimientos educacionales de la provincia de Concepción. Método: es un estudio descriptivo y correlacional, de corte transversal y cuantitativo. Los instrumentos utilizados el inventario de autoestima de Coopersmith, adaptado por Hellmut Brinkman (1987) para Chile, la escala "Adicción a redes sociales" (ARS) creada por Miguel Escurra Mayaute y Edwin Salas Blas (2014) y una baterí­a de preguntas relacionadas con los objetivos del estudio. Resultados: Se obtiene para autoestima total que un 23.63% de lo/as estudiantes se ubica en "normal" y el 19.9% se ubica en "baja autoestima.  Un 43.64% obtiene "valores bajos" en la escala ARS y un 24.55% obtiene "valores medios". Se encontró asociación inversa y estadí­sticamente significativa entre autoestima total y adicción a redes sociales.
Socio-economic and Cultural Impact of Sufi Shrines: A Case Study of Mitthan Kot
Authors: Sarfraz Ahmad
Published: August 2022

Sufi shrines are in large number in Pakistan with having a colossal impact on economic, cultural and social aspects. In the rural areas of Pakistan, mostly people are poor and less educated or uneducated with strong belief and devotion to Sajjada Nasheen. In this context, this study essentially aims to investigate the socio-economic and cultural influence of Sufi shrines in the rural areas of Mitthan Kot (upper Indus basin). This study follows the qualitative research strategy by employing in-depth interviews from different stakeholders. Thematic analysis has been used to analyze the data. The findings of the study also manifest that the local community is closely inter-connected with shrines encompassing different facets. A large chunk of rural population in the proximity of shrines is entirely dependents on shrines for their earnings and engaged in jobs like garments shops, catering services, transportation system etc. All of these employment activities boost up the local economy as well as the national economy. In the same fashion, people also enjoy cultural festivals like Urs and Mela which is a great source of spiritual happiness and entertainment. Besides all of this, various medical facilities like free eye camp and literacy conventions also play a vital role in the betterment of poor people. So there is a dire need for further development, improvement and regulation in the functioning of shrines and money generation thereof for proper incorporation in national economy.
Pengaruh Model Pembelajaran Problem Based Learning (PBL) Terhadap Hasil Belajar Matematika Pada Siswa Kelas VII Di SMP Sultan Agung Surabaya
Authors: Aries Achmad
Published: August 2022

Keberhasilan pencapaian hasil belajar sesuai nilai ketuntasan dalam proses belajar mengajar merupakan indikator bahwa siswa mampu menyerap ilmu yang didapat dengan baik. Untuk meningkatkan hasil belajar dituntut adanya sinergi antara kurikulum, guru, siswa, bahan ajar, media, fasilitas, dan sistem pembelajaran yang menjadikan hasil belajar dapat tercapai secara maksimal. Penelitian ini bertujuan untuk menemukan pengaruh penggunaan model pembelajaran Problem Based Learning terhadap hasil belajar siswa pada materi PLSV Kelas VII SMP Sultan Agung Surabaya. Penelitian ini menggunakan metode penelitian eksperimen dengan pendekatan kuantitatif dan tehnik penelitian melalui tes. Desain penelitian yang digunakan adalah pretest-postest control group design, dimana sebagai kelas eksperimen model pembelajaran PBL adalah SMP Sultan Agung Surabaya. Hasil penelitian menggunakan model pembelajaran problem based leaning terhadap hasil belajar matematika, siswa mampu mencapai rata rata kelas sebesar 83 dan ketuntasan belajar 100%. Berdasarkan penelitian, disimpulkan bahwa model pembelajaran PBL dapat meningkatkan hasil belajar siswa pada pelajaran matematika pada materi PLSV Kelas VII SMP Sultan Agung Surabaya, oleh sebab itu guru perlu meningkatkan kualitasnya agar dapat menciptakan pembelajaran yang kreatif dan menyenangkan, serta menggunakan model pembelajaran yang tepat agar hasil belajar siswa meningkat
The Effect of Decreased Transaction Volume on the Low Increase in E-commurce Revenue During the Pandemic on the Shope Application in 2020
Authors: Hidayat Imam , Agustina Selvia
Published: August 2022

This study aims to determine whether there is an effect of transaction volume on the low income of E-commerce in the current pandemic era. The sample in this study was 1 company, namely Shopee, so that the data obtained were 84 data. The data collection technique is non-participatory observation, namely collecting, recording and reviewing secondary data in the form of consumer reviews of Shopee users. The results showed that there was no effect between the decrease in transaction volume and the low increase in E-commurce revenue.Keywords :Â Decrease in volume, increase in revenue
Mandatory Reporting on Corporate Social Responsibility (CSR) as A Multinational Corporate Accountability Contemplate (Case Study at PT. Pertamina (Persero))
Authors: Fajrin Farid , Ismail Megawati , Handayani Umi , Sari Nur Indah , Herni Herni
Published: August 2022

The purpose of this study is to examine how PT. Pertamina (Persero), a state-owned firm engaged in the exploration and production of oil, gas, and geothermal energy in Indonesia, has implemented mandatory CSR reporting as a forum for accountability. This is a library research project in which data is collected in the form of journals, books, documents, and other relevant textual sources, which are then descriptively examined and conclusions drawn based on the issues discussed. According to the findings, PT Pertamina (Persero) has completed statutory CSR reporting in the form of an annual report and a sustainability report, both of which are available on the company's official website. PT Pertamina also continues to develop in relation to CSR activities that have a broad positive impact in order to increase corporate accountability. The four pillars of CSR and PKBL, Pertamina Hijau, Pertamina Sehat, Pertamina Cerdas, and Pertamina Berdikari, which encompass social, economic, educational, health, and environmental issues, demonstrate this. It is intended that through implementing these initiatives, they will be able to deliver useful services to the community while also benefiting the national economy.
Pentagon Fraud in Mining Companies Before and During COVID-19 Pandemic
Authors: Dewi V.Ananta Wikrama Tungga , Ginting Rafles
Published: August 2022

Penelitian ini bertujuan untuk mengetahui perbedaan pengaruh financial target, external pressure, capabilitas, komisaris, kualitas auditor, financial stability Â pada fraud sebelum pandemi dan saat pandemi. Variabel dependen dalam penelitian ini menggunakan kecurangan. Penelitian ini menggunakan financial target, external pressure, capabilitas, opportunity komisaris, opportunity kualitas auditor, financial stability sebagai variable independent. Data diuji dengan asumsi klasik dan regresi berganda menggunakan data tahun 2019 dan 2020. Berdasarkan pengujian statistik, variabel external pressure Â memiliki pengaruh yang berbeda. Â External pressure Â pada tahun 2019 berpengaruh terhadap fraud sedangkan external pressure pada tahun 2020 tidak berpengaruh pada fraud. Secara simultan, data tahun 2019 menunjukkanÂ  financial target, external pressure, capabilitas, opportunity komisaris, opportunity kualitas auditor, financial stability berpengaruh pada fraud sedangkan data tahun 2020 menunjukkan hal sebaliknya.
Penerapan Metode Altman (Z-Score) untuk Memprediksi Risiko Kebangkrutan
Authors: Martini Rita , Aulia Deli , Nurhasanah Nurhasanah , Sari Kartika Rachma
Published: August 2022

Analisis risiko kebangkrutan menggunakan metode Altman Z-Score yang ditujukan untuk menentukan tingkat potensi kebangkrutan pada PT Smartfren Telecom, Tbk. Data yang digunakan dalam analisis ini berupa data sekunder meliputi laporan keuangan konsolidasi tahun 2016, 2017, 2018, 2019, dan 2020. Perhitungan tingkat kebangkrutan yang telah dilakukan dengan menggunakan metode Altman Z-Score, didapatkan pada tahun 2016-2020 PT Smartfren Telecom, Tbk. berada dalam zona berbahaya dengan perhitungan rata-rata Z-Score < 1,1. Dari analisis yang telah dilakukan dapat disimpulkan bahwa perusahaan mengalami tanda-tanda kebangkrutan.
Analisis Efektivitas dan Dampak Pemberian Bantuan Langsung Tunai (BLT) Covid-19 di Desa Podosoko
Authors: Nafiah Ilma , Bharata Risma Wira
Published: August 2022

Tujuan penelitian ini adalah untuk menganalisis efektivitas pemberian bantuan langsung tunai (BLT) covid-19 menggunakan indikator pengukuran berupa ketepatan waktu dan ketepatan penentuan pilihan, serta untuk menganalisis dampak yang ditimbulkan akibat pemberian bantuan langsung tunai (BLT) covid-19 dari segi ekonomi dan sosial bagi masyarakat di Desa Podosoko Kecamatan Sawangan Kabupaten Magelang. Penelitian ini menggunakan metode deskriptif dengan pendekatan kualitatif. Hasil penelitian ini menunjukkan proses pendataan hingga penyaluran BLT di Desa Podosoko telah efektif dilihat dari ketepatan waktu dan ketepatan penentuan pilihan. Selain itu BLT covid-19 dapat membantu ekonomi masyarakat, namun menimbulkan dampak sosial berupa terjadinya konflik antar warga dengan pemerintah dusun maupun dengan pemerintah desa.
COMPARISONAL ANALYSIS OF FINANCIAL RATIO BEFORE AND DURING THE COVID-19 PANDEMIC OF GO PUBLIC MANUFACTURING COMPANIES LISTED ON IDX
Authors: Yaumi Sri , Winarsih Tri , Askhar Bayu Malikhul , Majid Abdul
Published: August 2022

This study aims to analyze the comparison of financial ratios before and during the covid-19 pandemic. The samples of this study were 21 go public manufacturing companies listed on the IDX. The data taken in this study were the 2nd ,3rd and 4th quarters of 2019 and the 2nd,3rd and 4th quarters of 2020. The analytical technique used in this study was Paired-Sample T-test. The results of the study indicated that liquidity was different before and during the covid-19 pandemic, while profitability, solvency, dividend policy and firm value were just the same as before and during the pandemic. This research indicated that manufacturing companies were still able to survive due to the Covid-19 pandemic. If the pandemic lasts longer, it is hoped that the company will maintain company value in order to survive and gain the trust of investors by using certain strategies. Because of this COVID-19 pandemic, the potential investors are more selective in choosing companies to invest.
Comparison Of Dividend Policy, Profitability And Company Value Before And During The Covid-19 Pandemic
Authors: Amrullah Iqbal Afif , Probowulan Diyah , Aspirandi Rendy Mirwan
Published: August 2022

This study is find out if there is a difference between the Dividend Policy, Profitability, and Company Value before and during the covid-19 pandemic. The object of this research is a company that is incorporated in the Indonesia Stock Exchange. The data analysis technique used is descriptive analysisÂ Â  After that, different tests were carried out to find out whether there were significant differences in the variables to be tested. The final result in the test is that the value of The Return On Asset test shows that there is a significant difference between before the pandemic and during the Covid-19 pandemic. The Price to Book Value test can be stated to have a significant difference.
Influence of Capital Adequacy Ratio, Financing Risk, Cost Efficiency, Liquidity and Net Interest Margin on Profitability at BNI Syariah Period 2011-2019
Authors: Sulthony Zahrul Makarim , Bahjatulloh Qi Mangku
Published: August 2022

The purpose of this research is to test and analyze the influence of capital adequacy ratio, financing risk, cost efficiency, liquidity and net interest margin towards profitability in BNI Sharia Bank period 2011-2019, the number of samples in this study is the reason for using Bank BNI Syariah as a sample of this research: Bank BNI Syariah operates in Indonesia in 2011-2019 and registered with Bank Indonesia (BI). Bank BNI Syariah publishes Trwiulannan financial statements in full and publish in the period 2011-2019. Data analysis uses multiple linear regression to test and prove research hypotheses, research results show capital adequacy, liquidity and net interest margins against profitability have no effect on the profitability evidenced by the significance of those variables more than 0.05. While financing risks and cost efficiencies have significant effect on profitability because of the significance of those variables less than 0.05. The magnitude of the effect of the predictor variable on profitability using the coefficient of determination obtained by 66.9% while the remaining33.1% is influenced by other variables outside this research model.
Do lay or community health workers in primary healthcare improve maternal, child health and tuberculosis outcomes?
Authors:   Norwegian Institute of Public Health, Oslo, Norway, Flottorp Signe , Glenton Claire ,   Norwegian Institute of Public Health, Oslo, Norway, Lewin Simon ,   Norwegian Institute of Public Health, Oslo, Norway and Medical Research Council of South Africa
Published: August 2022

Lay health workers have no formal professional education, but are usually given job-related training, and can be involved in either paid or voluntary care. They perform diverse functions related to healthcare delivery and have a range of titles, including village health workers, community volunteers and peer counsellors.