bluuebunny/crossref_metadata_2025 huggingface dataset:
El tequila para consumo nacional como una ventana de oportunidades para el pequeño productor agavero
Authors: Navarro del Toro Guillermo José
Published: February 2021

El objetivo de la presente investigación fue determinar el grado de conocimiento que los pobladores de la Zona Metropolitana de Guadalajara (integrada por los municipios Guadalajara, Tlajomulco de Zúñiga, Tlaquepaque, Zapopan y Tonalá) tenían en cuanto al tequila y a las marcas producidas en los Altos de Jalisco. Para ello, se diseñó una encuesta conformada por cinco preguntas, la cual fue aplicada en la plaza central, centro o zócalo de cada municipio. Los resultados demuestran que la grandes marcas al ser adquiridas por compañías internacionales, enfocaron su atención a la captura del consumidor en los mercados internacionales, ya que los precios que tienen los mismos productos que exportan ha quedado fuera del alcance del bolsillo de aquellos que gustan de esa bebida, por lo que se podría considerar que las grandes marcas, han dejando un poco atrás el mercado nacional por supuesto no lo abandonaron del todo, pero dejó de ser su principal objetivo. Por tanto, se puede concluir que el mercado nacional es la ventana de oportunidad de conjuntar a los pequeños y aún desconocidos productores para trabajando conjuntamente y de forma agrupada, sean capaces de estandarizar una serie de productos que siendo de la misma calidad y mismos envases, puedan llegar a cubrir el mercado nacional, y tal vez, en el futuro, llegar a ser una gran compañía distribuida a lo largo del territorio y comenzar el proceso de exportación solo con capital nacional.
Aerosol blocking assessment by different types of fabrics for homemade respiratory masks: spectroscopy and imaging study
Authors: Giuliani Carla Denari , Foschini Mauricio , Monte Adamo Ferreira Gomes , Mendes Ana Caroline Moreira , Maletta Alexandre , Janones Renata Scarabucci , Duarte Bruna Aparecida Rodrigues , Del-Claro Kleber
Published: February 2021

Objectives: Due to the crisis in protective equipment caused by a pandemic, it generates needs for equipment rationing among professionals working in the health area, with the need for many health professionals to use homemade masks. Therefore, this is a comparative study regarding the relative efficiencies of commercial respiratory masks (medical masks) and homemade fabric masks.Methods: A liquid aerosol line was created that passes through a chamber with 6 optical windows that allows the fixation of tissue or masks in the aerosol flow. The measures used two spectroscopic techniques that made it possible to relate the amount of aerosols with the scattering of light..Results: Fabrics with a higher percentage of cotton, and a greater number of layers and more closed wefts proved to be more efficient in blocking aerosols, however, fabrics without treatments obtained results far below the real needs of professionals working in the health area, with efficiency below 75% for liquid aerosols among the tissues tested.Conclusion: Homemade masks prove to be effective in reducing the spread of the virus among ordinary citizens in past infections, the efficiency of homemade masks is very low for health professionals who are directly exposed to the biological agent, so, it is necessary for public administrations to seek new alternatives with greater efficiency for this type of professional during the absence of surgical masks and n95.
Strengthening of weak foundation soils with crushed stone piles
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Akulova Yu. N. , Sakharov I. I. ,   Saint Petersburg State University of Architecture and Civil Engineering, Lushnikov V. V. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: February 2021

The article presents an innovative technique of deep vibration compaction for soft saturated soils with crushed stone piles. The methods for calculating the strength and deformation characteristics of reinforced soil mass proposed by H. J. Priebe and A. Z. Ter-Martirosyan are presented. An example of the road embankment base in the Plaxis 3D software package is given, taking into account the improvement of the soil mass with crushed stone piles.
Study by the numerical method of increasing the efficiency of falling ventilation jets for a channel compact air conditioning system
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Taurit V. R. , Sukhanova I. I. ,   Saint Petersburg State University of Architecture and Civil Engineering, Kolosnitsyn A. N. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: February 2021

The problem of significantly reducing the consumption of ventilation air in ducted air conditioning systems by optimizing the efficiency of the air distributor is solved. Unconventional falling non-isothermal jets are experimentally investigated by numerical method with the identification of the structure features and determination of the calculated coefficients m and n according to the proposed methodology. The possibilities of reducing energy consumption by increasing the initial temperature difference of the supply duct air are shown.
Factors affecting the formation of the steady state deceleration of two-wheel vehicles
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Evtyukov S. A. , Brylev I. S. ,   Saint Petersburg State University of Architecture and Civil Engineering, Blinder M. M. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: February 2021

The article describes the factors influencing the formation of braking parameters for two-wheeled vehicles, in particular, bicycles, moving on dry asphalt and ground. There were carried out braking tests to determine the deceleration using the decelerometer of LWS-2MC type on dry asphalt and ground. Depending on the braking system type, the method of braking, the mass of the two-wheeled vehicle and the weight of the cyclist, as well as the suspension design, there were built graphs, and regression equations were obtained. A quantitative assessment of the factors influencing the formation of a steady-state deceleration of a two-wheeled vehicle during emergency braking is given.
Offiside Kesetaraan Gender (Kritik Terhadap Liberasi Kesetaraan Gender Perspektif Al-Qur'an)
Authors: Putra Afriadi , Jamal Khairunnas , Fatah Nasrul
Published: February 2021

Kesetaraan gender menjadi kajian yang menarik terutama seiring dengan kehidupan modern. Pengarusutamaan kajian tentang gender yang digagas para pemerhatinya pada akhirnya bermuara pada kesetaraan tanpa batas (liberation of gender equality). Untuk membentengi hal itu perlu kiranya kajian yang berangkat dari sudut pandang Al-Qur’an sebagai pedoman utama dan menjadi pijakan kritis terhadap liberasi kesetaraan tersebut. Hasil dari penelitian ini menyimpulkan; Pertama, Al-Qur’an menegaskan bahwa perempuan ditempatkan pada posisi yang mulia, terhormat dan setara dengan laki-laki. Al-Qur’an sangat menentang keras adanya perlakuan buruk dan dikriminatif terhadap perempuan. Kedua, Al-Qur’an memandang bahwa kesetaraan perempuan dengan laki-laki terletak pada hal-hal yang berkaitan dengan hak-hak kemanusiaan dan ibadah. Namun pada fungsi-fungsi tertentu perempuan tidak dapat disamakan dengan laki-laki, seperti mengurus rumah tangga dan fungsi biologisnya. Dengan demikian kesetaraan yang diangkat oleh Al-Qur’an didasarkan pada aspek-aspek keadilan dan keseuaian dengan fitrah perempuan dan laki-laki.
Kontrol Diri di Media Sosial Perspektif Pemikiran Hermeneutika Hadis Khaled Abou El-Fadl
Authors: Muhsin Muhsin , Arif Muhammad
Published: February 2021

Artikel ini membahas tentang bagaimana perspektif hadis Nabi saw. mengenai menjaga lisan dan tangan? Lalu dijabarkan dalam sub-sub masalah sebagai berikut: 1. Bagaimana kualitas hadis tentang menjaga lisan dan tangan? 2. Bagaimana kandungan hadis tentang menjaga lisan dan tangan? 3. Bagaimana bentuk pengaplikasian hadis tentang menjaga lisan dan tangan dalam media sosial?. Menyelesaikan permasalahan ini, penulis menggunakan pendekatan hermeneutika dalam memahami hadis. Tujuan penelitian ini untuk mengetahui kualitas hadis, kandungan hadis dan bentuk pengaplikasian hadis tentang menjaga lisan dan tangan di dunia medsos. Adapun perkiraan hasil temuan dari penelitian ini adalah persolan menjaga lisan ini tidak hanya didudukkan dalam konteks hukum dan normative. Melainkan melibatkan budaya dan norma-norma kehidupan. Dalam konteks masyarakat timur yang mengacu pada nilai-nilai dan tatanan ketimuran menggangap bahwa manusia adalah bagian dari manusia yang lain yang tidak terpisahkan sehingga membentuk sebuah masyarakat yang sejahtera terhindar dari pembodohan akibat tidak menjaga lisan.
Peran Editor Video Dalam Produksi Program Sembang Malam di Ceria TV Pekanbaru
Authors: Edison Edison , Tambes Reski Pulpi
Published: February 2021

AbstactMass communication must be adjacent to gatekeeper, referred to as gatekeeper in an assignment i.e. the person in charge of selecting, choosing, changing, responsible later on to a will be broadcast to audiences. At CeriaTV Pekanbaru Video Editor is the role holder of gatekeeper, because the video editor in CeriaTV Pekanbaru that will answer the results of the editing later and the creativity of an editor can add the selling value of a program that is edited and presented later to the audience. CeriaTv Pekanbaru still has a shortage of human resources, then the production Director, the documentation division can concurrently become an editor. The research aims to find out how the video Editor role in the production of Sembang Malam program at CeriaTV Pekanbaru. The subject of this study is CeriaTv Pekanbaru and the object of this research is the role of editors in the production of a Sembang Malam program at CeriaTV Pekanbaru. This research uses qualitative descriptive research methods. The results of the editor's role through the first three stages, the first offline editing stage, at this stage an editor can play a role in shooting with a cameraman whose goal is to know the picture during the editing process later, and data checking. Further more the online editing stage, at this stage an editor checks equipment on the editing equipment, has its own notes for editing (according to the script), content and video visuals, editors must have the creativity issued When content editing and video visuals take place. The last stage is mixing (merging between sound and video), at this stage the sound and video must be balanced and at this stage also there are additional sounds such as sound effect, and backsound if needed. From these three stages, an editor can produce programs, both and interestingly the program is in the editor and creativity of the editors package the program, hence the editor is very important to manage the program that will be aired on audiences. Talk show-based Sembang Malam programmes that cover the hottest things, as well as inviting guest stars that inspire, from communities and individuals.
Hermeneutika Tauhid; Kritik terhadap Penafsiran Amina Wadud tentang Nusyuz
Authors: Janah Miftahul , Yasir Muhammad
Published: February 2021

Tulisan ini mengkaji paradigma, prinsip, metode dan hasil penafsiran Amina Wadud, khususnya tentang nusyuz. Paradigma penafsiran merujuk pada hermeneutika tauhid yang memahami bahwa Al-Qur’an mempunyai satu-kesatuan makna dari seluruh bagian-bagian ayatnya. Sehingga ada integrasi antara hal yang universal dan partikular dalam Al-Qur’an. Secara geneologi, prinsip penafsiran Wadud merujuk pada hermeneutika filosofis atau aliran obyektivies-cum-subyektivies, yakni Gadamer. Kelompok ini lebih mengedepankan pada wilayah “bagaiman memahami”, tidak pada wilayah bagaimana memahami teks dengan benar dan objektif. Terdapat tiga metode yang dilalui Wadud dalam menafsirkan Al-Qur’an; dalam konteks apa suatu teks ditulis atau diwahyukan, bagaimana komposisi tata bahasa teks tersebut, terakhir bagaimana keseluruhan teks (ayat), Weltanschauung-nya atau pandangan hidupnya. Sementara terkait nusyuz, Wadud memahami sebagai disruption of marital harmony. Salah satu kritik terhadap penafiran Wadud terletak pada pemahamannya bahwa lafad qānitāt hanya berlaku pada ketaatan manusia kepada Allah, tidak pada keta’atan sesama mahluk hidup, namun dalam Q.S. Al-Ahzab (33):31 tidak demikian.
Development of a YAMUGAG-20 Wireless Exploder for Safe Disposal of Military and Civil Explosives
Authors: Na'inna A. M. , Yakubu M. B. , Mohammed A. , Uzuazor P. A. , Abdullahi A. Y. , Goje U. H. , Audu A. , Gana I. N.
Published: February 2021

YAMUGAG-20 Exploder is a Radio Frequency (RF)-based wireless exploder system designed and constructed specially for the Nigerian Air Force (NAF) to overcome the challenges associated with the existing wired exploders used for the disposal of unserviceable ordnances. The Exploder system has three main parts namely, the master transmitter unit, the master receiver/slave transmitter unit, and the slave receiver unit. Each of these units is made up of transceiver module, microcomputer and power source. The microcomputers were programmed using C and C++ programming language of the Integrated Development Environment (IDE) software. The exploder is portable and easy to operate. For a typical demolition exercise, the operation of the exploder is such that signals are relayed from the master transmitter unit to the master receiver/slave transmitter unit onto the slave receiver unit to initiate an electric detonator leading to the detonation of the unserviceable ordnances. Functionality, range, power consumption, and system reliability tests were conducted on the exploder to establish its performance and efficiency. The results obtained from the tests indicated that the exploder transmitting at a frequency of 2.4GHz performed satisfactorily up to a range of 1000 meters. Therefore, the exploder has the potential of not only meeting the demolition demands of the NAF but can also be applied for other nonmilitary purposes like mining and related activities.
Geochemistry and Petrogenetic Relationships Between Pegmatites and Host Rocks in the Keffi Area, North Central, Nigeria
Authors: Tanko I. Y. , Dzigbodi-Adjimah K.
Published: February 2021

Keffi pegmatites area which contains numerous mineralised and non-mineralised pegmatites lie between the Wamba pegmatite field to the NE and Nasarawa pegmatite field to the SW on the North Central Pegmatite belt of Nigeria. In Keffi area exploitation of deposits is currently being done by small scale miners, whose activities are haphazard and uncoordinated, because of that information on the geology and petrology that will enable a systematic study of the pegmatites in the area is scanty. Systematic geochemical investigations of the pegmatites and surrounding host rocks aimed at establishing petrogenetic relationships amongst the various rock types in the area were conducted. Major, trace and REE investigations of the pegmatites and associated granitoids have indicated petrogenetic relationships amongst the pegmatites and between the pegmatites and surrounding granitoids of Keffi area. Also, the variation diagram of major, trace and REE in whole rocks and K-feldspar samples show patterns which categorised the pegmatites of Keffi area into; (1) Non-mineralised, (2) intermediate and (3) mineralised pegmatites.  It was also deduced from the geochemical characteristics (variation diagrams in major and trace element, REE geochemistry and tectonic environment classification) that a genetic model based on the evolution of melt by partial melting of metasedimentary protolith during ultrametamorphic and deformational activities (anatexis) is proposed for the granite-pegmatite system of Keffi area. This information will be useful as guide for fruitful exploration of the pegmatites and serves as model for the exploitation of pegmatite veins in similar geologic settings.
Growth, Mortality and Exploitation Levels of Sphyraena sphyraena (Pisces: Sphyraenidae) and Apsilus fuscus (Pisces: Lutjanidae) in Ghanaian Waters
Authors: Aggrey-Fynn Joseph , Hotor Divine Worlanyo
Published: February 2021

Sphyraena sphyraena (Linnaeus, 1758) and Apsilus fuscus (Valenciennes, 1830) are commercially important fish species in Ghana. The stocks are exploited mainly by the artisanal and semi-industrial fisheries. Growth and mortality rates, and exploitation levels of the two stocks in inshore waters of Ghana were assessed as a contribution to fill the knowledge gap on the species. Samples were obtained from three landing sites along the coast of Ghana from February to July, 2017. Length-frequency data were used to estimate growth, mortality and exploitation ratios. The modal class for S. sphyraena was 37.0–39.9 cm total length (TL) and 34.0–35.9 cm TL for A. fuscus. The length and weight relationships established that growth in S. sphyraena was negative allometric, whereas that of A. fuscus was isometric. The estimated growth parameters from the length frequency data fitted with the von Bertalanffy growth function were asymptotic length (L∞) of 69.9 cm TL for S. sphyraena and 53.5 cm TL for A. fuscus. The growth constant (K) was calculated as 1.64 yr-1 for S. sphyraena and 0.50 yr-1 for A. fuscus. The mean length-at-first capture (Lc) was found to be lower than the mean length at sexual maturity (Lm) for both species. The sex ratio showed a dominance of females over males in S. sphyraena, and 1:1 for A. fuscus. The total mortality rate (Z) for S. sphyraena was more than for A. fuscus. The estimated natural mortality (M) was 1.88 yr-1 for S. sphyraena and 0.74 yr-1 for A. fuscus whilst fishing mortality (F) rate was 3.04 yr-1 for S. sphyraena and 0.93 yr-1 for A. fuscus. The exploitation ratio showed that both fish stocks were exploited over the optimum levels. The estimated population parameters of the species obtained from the study, therefore, might be useful for the sustainable management of the stocks.
Case Study of Ruqyah Therapy On Muslim Patient with Eczema
Authors: Rahman Hamidi Abdul , Hussin Supyan
Published: February 2021

A case study on a female Malay living in the UK with serious eczema was presented. Her parents believed that it was a condition called santau, a common cultural belief in South East Asian countries. Santau is believed as the insertion of poisonous materials into the victim’s body with the help of jinn. Santau is normally differentiated from other medical skin conditions by the rapid deterioration of the condition and rapid improvement after successful treatment. Her skin condition was intolerable after a trip to Malaysia. Unable to be admitted to hospital because of the pressure on hospital beds during the Covid-19 pandemic, she resorted to intensive multiple-day ruqyah therapy, a therapy based on the incantation of verses from the Quran. Remarkable improvement was observed after three days. Apart from delivering therapeutic outcome, ruqyah therapy as a Traditional and Complementary Medicine has its role in relieving the pressure on the mainstream health system especially in time of pandemic.
KOMITMEN PROFESIONAL DAN SENSITIVITAS ETIS DALAM INTENSI MELAKUKAN WHISTLEBLOWING
Authors: Badrulhuda Arif , Hadiyati Siti Nur , Yusup Junaedi
Published: February 2021

Tindak pidana korupsi telah menjadi pekerjaan rumah di hampir seluruh negara di dunia dan menjadi perhatian publik secara luas. Terkadang, fraud yang terjadi berkembang secara sistemik sehingga sulit untuk diberantas. Sehingga, diperlukan mekanisme yang tepat dalam pemberantasan kasus korupsi. Menjadi seorang whistleblower tidaklah mudah. Dibutuhkan keberanian dan keyakinan untuk melakukannya. Tindakan yang dilakukan oleh whistleblower disebut dengan whistleblowing. Auditor merupakan profesi yang dianggap dapat menjadi whistleblower dalam institusi tempatnya bekerja. Namun ketika akan melakukan whistleblowing, terkadang auditor dihadapkan pada komitmen profesional dan sensitivitas etis. Penelitian ini bertujuan untuk menganalisis pengaruh komitmen profesional dan sensitivitas etika terhadap intensi whistleblowing. Penelitian ini menggunakan smartPLS sebagai teknik analisis data. Variabel penelitian diukur dengan kuesioner. Respondennya adalah seluruh Auditor Internal Pemerintah pada Inspektorat Daerah Kota Cirebon, Kabupaten Cirebon, Kuningan dan Majalengka dengan metode sampling jenuh. Artinya seluruh jawaban yang lengkap dari responden akan dianalisis. Dari 100 kuesioner yang didistribusikan, hanya 56 saja yang dapat kembali dan diolah lebih lanjut. Setelah melalui evaluasi pengukuran model dan pengujian hipotesis, diperoleh hasil bahwa komitmen profesional dan sensitivitas etis berpengaruh terhadap intensi untuk melakukan whistleblowing.Kata Kunci: Komitmen profesional, sensitivitas etis, intensi whistleblowing.
MEDIASI PROFESIONALISME PADA PENGARUH INTENSITAS MORAL DAN RELIGIUSITAS TERHADAP PERILAKU ETIS AUDITOR
Authors: Dhamasanti Jihan Fitria , Sudaryati Erina
Published: February 2021

Good and Clean Governance yang dilakukan pemerintah harus selalu berhubungan dengan penerapan internal yang memadai. Badan Pengawas Keuangan dan Pembangunan (BPKP) mempunyai tujuan yang sentral bagi kesuksesan atau keberhasilan dari system kontrol internal instansi tertentu. Seorang BPKP diberi kewajiban untuk mempunyai berbagai keahlian yang penting bagi sebuah instansi. Di lain hal intensitas moral juga merupakan suatu komponen yang berpengaruh saat mengambil keputusan etis. Religiusitas adalah sebuah variabel yang memiliki pengaruh pengambilan keputusan etis dalam lembaga atau instansi. Penelitian ini bertujuan guna memberi gambaran, penjelasan, dan analisis tentang intensitas moral dan religiusitas pada profesionalisme auditor internal, intensitas moral dan religiusitas pada pengambilan keputusan etis, dan profesionalisme auditor internalpada pengambilan keputusan etis pada Badan Pengawas Keuangan dan Pembangunan (BPKP) Jawa Timur (Jatim).Pendekatan menggunakan pendekatan kuantitatif. Populasi yang diambil adalah seluruh auditor internal pada BPKP Jatim. Digunakan teknik sampling jenuh untuk mengambil sampel dengan kriteria seluruh auditor internal digunakan sebagai sampel. Sampel akhir yang terpilih yaitu 50 auditor internal.Hasil analisis didapatkan apabila Intensitas moral dan Religiusitas memberikan pengaruh positif dan signifikan pada profesionalisme auditor internal BPKP dan pengambilan keputusan etis BPKP; sedangkan Profesionalisme auditor internal, Intensitas moral, dan Religiusitas memberikan pengaruh positif serta signifikan pada pengambilan keputusan etis Melalui Profesionalisme Auditor Internal BPKP.
Mengembangkan Kemampuan Pemahaman Konsep Peserta Didik Melalui Pembelajaran Berbasis VCD
Authors: Farida Farida
Published: February 2021

There are several factors that with low learning outcomes of learners, the most important is the low interest of learners to follow the lesson well and earnestly. Lack of strong motivation to be one cause of low interest learners learners. This study aims to improve the ability to understand the mathematical concepts of the subject matter kesebangunan. The benefits of this research is to provide input in choosing a varied learning model that can improve the learning outcomes of learners mathematics as well as information materials for other researchers. The research method used is experimental research with right t test with population class IX SMP Negeri 3 Bandar Lampung. The results showed that learning mathematics with VCD media learning on the ability of understanding the concept of class IX students SMP Negeri 3 Bandar Lampung semester I on the subject matter kesebangunan more effective than conventional learning, it is seen from the ability to understand the concept of learners better than conventional learning . Thus learning mathematics with VCD media learning on the subject matter kesebangunan can be used as an alternative method in learning in order to increase the variety of teaching methods in the effort to train the skills of reasoning and communication of learners and improve learning outcomes of learners.
Pengaruh Pembelajaran Berbatuan Geogebra terhadap Pemahaman Konsep Matematis ditinjau dari Gaya Kognitif
Authors: Purwanti Ramadhani Dewi , Pratiwi Dona Dinda , Rinaldi Achi
Published: February 2021

The purpose of this research is to know whether there is influence of learning model of Geogebra-assisted Discovery Learning to understanding mathematical concept, to know whether there is influence between learners who have cognitive style of FI and FD to understanding mathematical concept, to know whether there is interaction between learning of Discovery Learning Unity Geogebra with the cognitive style of learners towards the understanding of mathematical concepts. This research type is quasi experiment research, population in this research is all students of class VII of SMP Negeri 2 Bandar Lampung, sampling technique in this research use class random technique where class VII-8 as experiment class 1 with study of Discovery Learning assisted geogebra, Class VII-7 as a control class with Discovery Learning learning with Microsoft Power Point. Technique of data analysis in this research use two way Anova test with unequal cell. Based on the test results, the first hypothesis is indicated by the statistical price of 8,871 (p 4,001), so that H0A is rejected with the conclusion that there is influence of Discovery Learning learning by geogebra toward the understanding of mathematical concept. For the second second hypothesis is shown with a statistical price of 5.23 (p 4,001), so H0B is rejected with the conclusion that there is an influence between learners who have cognitive style of FI and FD on the understanding of mathematical concepts. For the third hypothesis, it is shown by the statistical price of 1.05 (p 4,001), so H0AB is accepted with no conclusion there is no interaction between the learning of Geogebra-assisted Discovery Learning with the cognitive style of learners towards the understanding of mathematical concepts.
Pengaruh Model Pembelajaran Investigasi Kelompok berbantuan Perangkat Lunak Maple terhadap Kemampuan Pemecahan Masalah Matematis
Authors: Wulandari Putri , Mujib Mujib , Putra Fredi Ganda
Published: February 2021

This study aims to determine the effect of mathematical problem solving ability of learners who follow the learning by using an instructional model of maple assisted software assisted, with learners who use, study group investigation model, as well as learners who follow the conventional learning model conducted by researchers on participants Students of class X SMK Muhammadiyah 1 Metro. This type of research is a quasi experimental research with posttest only control design design. Hypothesis test using a one-way anava test with unequal cells and obtained the conclusion that the model of group investigation learning is better than an instructional model of maple assisted software group and both models of learning is better than conventional learning model. Based on the results of analysis and discussion of research data obtained that there is an influence on the ability of solving mathematical problems among students in class applying group investigation model assisted maple software, students in class apply only group investigation learning model, and students whose class apply the conventional learning model on the principal Discussion of the matrix.
Sebaran Generalized Extreme Value (GEV) Dan Generalized Pareto (GP) untuk Pendugaan Curah Hujan Ekstrim di Wilayah DKI Jakarta
Authors: Rinaldi Achi
Published: February 2021

Extreme event such as extreme rainfall have been analyzed and most concern for the country all around the world. There are two common distribution for extreme value which are Generalized Extreme Value distribution and Generalized Pareto distribution. These two distribution have shown good performace to estimate the parameter of  extreme value. This research was aim to estimate parameter of extreme value using GEV distribution and GP distribution, and also to characterized effect of extreme event such as flood. The rainfall data was taken from BMKG for 5 location in DKI Jakarta. Both of distribution shown a good perfromance. The resut showed that Tanjung Priok station has biggest location parameter for GEV and also the biggest scale parameter for GP, that mean the biggest probability to take flood effect of the extreme rainfall.
Meningkatkan Kemampuan Generalisasi Matematis Melalui Discovery Learning dan Model Pembelajaran Peer Led Guided Inquiry
Authors: Anggoro Bambang Sri
Published: February 2021

The low ability of mathematical generalization of the students of SMPN 17 Bandar Lampung is because most of the students still have difficulty in drawing a conclusion from the material they have acquired and the lesson learned process of generalization aspect or less precisely the instructional model used. The purpose of this research is to know the influence of learning model of Peer Led Guided Inquiry and learning, discovery learning model with the ability of mathematical generalization. The measured variable from this research is the generalization ability in mathematics learning with the subject of algebraic factorization. This research is a quasi experimental research (quasi experimental research), where the subject of the study is students Class VIII students SMPN 17 Bandar Lampung. Data collection technique used is a test of mathematical generalization ability. The data analysis technique used analysis of variance (ANAVA) of one road with cell unlike the significance level α = 0,05 and as requirement analysis, that is a normal distribution population with liliefors model and homogenous population with Bartlett Test. Based on the result of research using ANAVA one way with cell unequal with significance level α = 0,05 it is obtained that 〖F〗 _count F_tabel IE 7,5105 3,0973, hence the decision of Ho test is rejected. So it can be concluded that there is influence of learning model Peer Led Guided Inquiry, learning model of Discovery Learning, Conventional learning model to ability of mathematical generalization of learners. The test proceeds with a double-compression test using Scheffe ' methods to see which has a significant effect on mathematical generabilizability. The calculation results show that of the three treatments, the learning model of Discovery Learning which gives a significant influence on the ability of mathematical generalization.
Analisis Persepsi Siswa SMP terhadap Pembelajaran Matematika ditinjau dari Perbedaan Gender dan Disposisi Berpikir Kreatif Matematis
Authors: Anggoro Bambang Sri
Published: February 2021

This research is a qualitative research with the qualitative descriptive method. The technique of research subject taking in this research use purposive sampling technique. The subjects of this study amounted to 9 students. Data collection techniques used were questionnaire perception and disposition of students' mathematical creative thinking, observation, interview and documentation of mathematics learning. Data analysis techniques, namely data reduction, data presentation, and conclusions. The validity of data in this study using the content validity, construct validity and reliability and triangulation techniques. According to the results of the study and discussion, the conclusion of this study is Based on the gender and disposition of mathematical creative thinking, the perception of mathematics learning that is produced, that is for high DBKM and positive perception is only found in male students, for high DBKM and medium perception, Male and female students, for medium DBKM and medium perception, female students tend to be more than male students, for medium DBKM and negative perceptions of male students tend to be more than female students, for low DBKM and perception is being Only in boys, and for low DBKM and negative perceptions are only found in female students. The disposition of high mathematical creative thinking and positive perception is very influential on learning mathematics because students who have high DBKM and positive perception will be better in learning mathematics than students who have DBKM and perceptions other than high DBKM and positive perceptions of mathematics learning.
Pembelajaran Matematika dengan Metode Accelerated Learning untuk Meningkatkan Kemampuan Penalaran Adaptif
Authors: Putra Rizki Wahyu Yunian
Published: February 2021

The ability of adaptive reasoning is a competence that must be possessed by students, but the reality of the field shows that students' adaptive reasoning ability is still not satisfactory. Learning with the accelerated learning method is applied in the hope of improving students' adaptive reasoning abilities. The purpose of this research is to know whether the improvement in students' adaptive reasoning ability with accelerated learning method is better than ordinary learning. This research is a quasi-experiment or quasi-experiment with pretest-posttest control group design. Implementation of this research is done on grade VIII students in one of the State Junior High School in Bandar Lampung. Problems given are questions of reasoning ability of adaptive in material relation and a function, test of ability, ability of reasoning is tested theoretically by validating with picture that test question can be well understood and empirically validity and reliability fulfill characteristic to be used in research, The degree of difficulty and distinguishing power of the problem can already be used to determine the enhancement of the ability of adaptive reasoning. Quantitative data analysis was performed using flat most different and N-Gain test. The results of this study are students whose learning to apply learning with an accelerated learning method of enhancing the ability of adaptive reasoning is significantly better than that of students whose learning using ordinary learning is reviewed in whole.
IMPLEMENTASI TUGAS POKOK DAN FUNGSI PENGAWAS MADRASAH DALAM PENINGKATAN MUTU MADRASAH ALIYAH SE-KECAMATAN TANETE RIATTANG KABUPATEN BONE
Authors: Erwin Erwin , Usman Syahruddin , Ibrahim Misykat Malik
Published: February 2021

The problem of this research is on the roles and functions of madrasah supervisors in improving the quality of Madrasah Aliyah in Tanete Riattang district of Bone regency. It’s important to know the understanding of supervisors on their roles and functions in improving the quality of schools, the planning of supervisors in conducting their roles and functions, and the implementation of supervision in improving the quality of Madrasah Aliyah in Tanete Riattang district of Bone regency. This reseach was a qualitative research where the main sources of the research data were the head of the Ministry of Religious Affairs of Bone, Madrasah supervisors, Principals, teachers, and staffs of Madrasah Aliyah in Tanete Riattang district. Data processing and analysis techniques were carried out through three stages of data reduction, data display, and data conclusion drawing. The results of this research showed that the supervisors’ understanding was monotonous in which the supervisors prepared their programs according to the supervisory standard. In addition, the supervisors merely made a one-time visit to 24 different madrasas which could be considered to be inefffective.
Reconstituting Communities: Localized Folk Performing Arts and Matsuri Festivals in Post-3.11 Japan
Authors: kaneko Nana
Published: February 2021

Based on two years of ethnographic fieldwork primarily in Sendai, Japan, this paper focuses on matsuri festivals and folk performing arts, which have been documented as one of the earliest musical activities to reemerge in coastal areas of Tohoku, Japan following 3.11 because of their deep rooted history and regional distinctions. This paper presents the ways in which these cultural properties are being supported by government organizations such as the Agency for Cultural Affairs, as well as individual scholars and researchers of Tohoku’s folk performing arts. While localized folk performing arts practices have helped to rebuild local identity and given dispersed communities a reason to regularly reconvene, some post-3.11 festivals such as the Tohoku Rokkonsai (Six-Soul Festival) have developed to also showcase Tohoku’s folk performing arts as a means of demonstrating tenacity to a global audience and to try to boost post-disaster tourism and economic redevelopment. This paper considers how music making can contribute towards relief and recovery in the continuing crisis of disaster and advocates for further consideration of cultural heritage as integral to, rather than, separate from social and environmental contexts that foster human resiliency following catastrophic events. Keywords: ethnomusicology; folk performing arts; disaster relief; Japan
Astronomy and landscape in Ancient Egypt: Challenging the enigma of the minor step pyramids
Authors:   Instituto de Astrofísica de Canarias (España), Belmonte Juan Antonio , Shaltout Mosalam ,   Helwan Observatory( Egypt), Fekri Magdi ,   Minufiya University  (Egypt)
Published: February 2021

The minor step pyramids (MSPs) form a coherent group of seven monuments distributed along Egyptian geography with a series of common characteristics that make them unique and distinct from other buildings of similar typology. The purpose of these pyramids is a matter of dispute among Egyptologists and most proposals could be interpreted as sad examples of vox nihil. By contrast, our archaeoastronomical study of the monuments would suggest that minor step pyramids were built at certain locations and with particular orientations that might relate them to the preliminary stages and consolidation, during the reign of king Snefru, of two master creations of early dynastic Egypt, the civil calendar and the stellar Afterlife later appearing in the Pyramid Texts.
Two observations on the tales of The contendings of Horus and Seth and Truth and Falsehood
Authors:   Instituto Multidisciplinario de Historia y Ciencias Humanas (Argentina), Campagno Marcelo
Published: February 2021

The Contendings of Horus and Seth (Papyrus Chester Beatty I) and The Blinding of Truth by Falsehood (Papyrus Chester Beatty II) –which can be numbered among the most significant texts of the ancient Egyptian literature of the New Kingdom– show a recognized set of common characteristics. Two topics concerning the remarkable similarity between these texts are considered here. On the one hand, the plot of both texts can be clearly linked to the main episodes of the myth that unites the gods Osiris, Isis, Seth and Horus, and the gap between these different literary “realizations” of the myth can be related to the différences de degré recognized by Claude Levi-Strauss in his analysis of the relations between myth (mythe) and tale (conte). On the other hand, a specific feature of the content of both texts is taken into consideration: the quest of judicial solutions for the conflicts in which the main characters engage. In this sense, it is suggested that two different kinds of judicial procedures are present in both The Contendings and Truth and Falsehood, which can be related to the importance of kinship and state “logics” in the internal organization of these texts as well as in the structure of Ancient Egyptian society
Cléopâtre dans le miroir de la peinture du XIXe siècle
Authors:   Musées Royaux d’Art et d’Histoire  (Belgique), Vanlathem Marie-Paule
Published: February 2021

L’histoire, ainsi que la légende de Cléopâtre, ne sont pas mortes. Plusieurs aspects de sa vie tumultueuse, très courte, ont été peints. Seul les tableaux du 19e siècle sont traités ici. Les auteurs classiques ont été l’une des sources d’inspiration pour évoquer les événements historiques de la dernière reine d’Égypte. Mais aussi l’expédition de Bonaparte au pays des pyramides, dont est issue la Description de l’Égypte, a fortement marqué le siècle qui a suivi, au cours duquel on retrouve des influences égyptiennes dans certaines peintures. Les œuvres décrites ici dans l’ordre chronologique du règne de Cléopâtre se regroupent en quatre parties : son apparition extravagante avec César, sa liaison avec Marc Antoine, sa rencontre avec Octave et sa fin courageuse
Flow cytometry early predicts bacterial susceptibility to antibiotics
Authors: Anziliero Eduarda Bassi , Guizzo João Antônio , Gressler Leticia Trevisan , Anziliero Deniz , Frandoloso Rafael , Kreutz Luiz Carlos
Published: February 2021

Objective: To evaluate a flow cytometry protocol to test bacteria for antimicrobial susceptibility. Methods: We used antimicrobial drugs, a strain of Escherichia coli (ATCC 25922) susceptible to all antimicrobials, and clinical isolates of E. coli resistant to the same drugs. Prior to testing, the susceptibility of all isolates was tested by the disc-diffusion method. For flow cytometry, standard concentrations of antimicrobial drugs were added to E. coli bacteria, incubated for 1 to 3 h at 37ºC, stained with propidium iodine and analyzed by flow cytometry.  As controls, each bacterial isolate, at each indicated time, was also collected and seeded on Luria Bertani agar plate to enumerate the number of viable cells by the classical method. The growing/survival rate was evaluated in the same samples after incubating for 24h at 37ºC. Results: Antimicrobial susceptibility was estimated at 1 and 3 hours but at this time a higher number of viable cells was detected by flow cytometry compared to colonies counting on agar plates. Conclusion: Flow cytometry allows early evaluation of bacterial resistance to antibiotics and can be optimized and used as an alternative tool to detect multi-resistant bacterial isolates.
Silica-supported PdGa Nanoparticles: Metal Synergy for Highly Active and Selective CO2-to-CH3OH Hydrogenation
Authors: Docherty Scott , Phongprueksathat Nat , Lam Erwin , Noh Gina , Safonova Olga V. , Urakawa Atsushi , Copéret Christophe
Published: February 2021

A precise synthesis of small (<2 nm) supported palladium-gallium alloyed nanoparticles on GaIII sites dispersed on silica (PdGa@SiO2) is reported. This material, prepared via a Surface Organometallic Chemistry (SOMC) approach, is highly active and selective in hydrogenation of CO2 to methanol.
Computational Investigation of the Role of Active Site Heterogeneity for a Supported Organovanadium(III) Hydrogenation Catalyst
Authors: Patel Prajay , Wells Robert , Kaphan David , Delferro Massimiliano , Skodje Rex T. , Liu Cong
Published: February 2021

A crucial consideration for supported heterogeneous catalysts is the non-uniformity of the active sites, particularly for Supported Organometallic Catalysts (SOMCs). Standard spectroscopic techniques, such as X-ray absorption spectroscopy (XAS), reflect the nature of the most populated sites, which are often intrinsically structurally distinct from the most catalytically active sites. With computational models, often only a few representative structures are used to depict catalytic active sites on a surface, even though there are numerous observable factors of surface heterogeneity that contribute to the kinetically favorable active species. A previously reported study on the mechanism of a surface organovanadium(III) catalyst [(SiO)VIII(Mes)(THF)] for styrene hydrogenation yielded two possible mechanisms: heterolytic cleavage and redox cycling. These two mechanistic scenarios are challenging to differentiate experimentally based on the kinetic readouts of the catalyst are identical. To showcase the importance of modeling surface heterogeneity and its effect on catalytic activity, density functional theory (DFT) computational models of a series of potential active sites of [(SiO)VIII(Mes)(THF)] for the reaction pathways are applied in combination with kinetic Monte Carlo (kMC) simulations. Computed results were t then compared to the previously reported experimental kinetic study.: 1) DFT free energy reaction pathways indicated the likely active site and pathway for styrene hydrogenation; a heterolytic cleavage pathway requiring a bare tripodal vanadium site. 2) From the kMC simulations, a mixture of the different bond lengths from the support oxygen to the metal center was required to qualitatively describe the experimentally observed kinetic aspects of a supported organovanadium(III) catalyst for olefin hydrogenation. This work underscores the importance of modeling surface heterogeneity in computational catalysis.
Predicting the Potential Effect of E484K Mutation on the Binding of 28 Antibodies to the Spike Protein of SARS-CoV-2 by Molecular Dynamics Simulation and Free Energy Calculation
Authors: Wu Leyun , Peng Cheng , Xu Zhijian , zhu weiliang
Published: February 2021

Vaccines and antibody therapeutic are needed to fight the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has spread since 2020. Experimental studies have shown that the E484K variant may escape the neutralization of antibodies. To explore the potential impact of E484K mutation on the antibody binding affinity, we calculated the binding free energy of 28 antibodies to the wild type and K484 mutant of the spike protein of SARS-CoV-2. We found that 71% of the antibodies show lower binding affinity to the E484K mutant, indicating the highly possible immune escape risk of the mutated virus. Further analysis revealed that the other mutations, e.g. F490 and V483, are also likely to cause immune escape.
Bedsore and strategies for preventing and treating the bedsore
Authors: Yashas M S  , Preeti S  , Amit B Patil  , Shailesh T
Published: February 2021

The best recognized and also the most widespread example of tissue necrosis is bedsore. A bedsore is localized damage to the skin and other underlying tissue, usually over a bony prominence, as a result of prolonged, unrelieved pressure. The cause of bedsore is shearing forces; friction, moisture, and constant pressure contribute to the development of bedsore. Hospital research shows that bedsores develop from 3% to 4.5% of patients during prolonged hospitalization and Sores develop from 25% to 85% of patients with spinal cord injury. The doctor and nurses will regularly examine the patient who is at risk of developing bedsore and inspect each pressure sites at least twice a day. Doctors and nurses are important warriors who manage bedsore treatment effectively. This review describes the new strategies have been used to prevent and management of bedsore such as inexpensive foam devices, anti-pressure devices, air-filled equipment, a sheet of hydrogels, wound vacuum-assisted closer, skin bioprinting, and Lab VIEW virtual instrument.
A conserved PI(4,5)P2–binding domain is critical for immune regulatory function of DOCK8
Authors: Sakurai Tetsuya , Kukimoto-Niino Mutsuko , Kunimura Kazufumi , Yamane Nana , Sakata Daiji , Aihara Ryosuke , Yasuda Tomoharu , Yokoyama Shigeyuki , Shirouzu Mikako , Fukui Yoshinori , Uruno Takehito
Published: February 2021

DOCK8 is a Cdc42-specific guanine-nucleotide exchange factor that is essential for development and functions of various subsets of leukocytes in innate and acquired immune responses. Although DOCK8 plays a critical role in spatial control of Cdc42 activity during interstitial leukocyte migration, the mechanism remains unclear. We show that the DOCK homology region (DHR)-1 domain of DOCK8 binds specifically to phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2) and is required for its recruitment to the plasma membrane. Structural and biochemical analyses reveal that DOCK8 DHR-1 domain consists of a C2 domain-like core with loops creating the upper surface pocket, where three basic residues are located for stereospecific recognition of phosphoinositides. Substitution of the two basic residues, K576 and R581, with alanine abolished PI(4,5)P2 binding in vitro, ablated the ability of DOCK8 to activate Cdc42 and support leukocyte migration in three-dimensional collagen gels. Dendritic cells carrying the mutation exhibited defective interstitial migration in vivo. Thus, our study uncovers a critical role of DOCK8 in coupling PI(4,5)P2 signaling with Cdc42 activation for immune regulation.