bluuebunny/crossref_metadata_2025 huggingface dataset:
Моделирование прохождения пучка протонов через тонкие пленки золота
Authors: Бабенко П.Ю. , Зиновьев А.Н. , Тенсин Д.С.
Published: September 2022

The results of calculating the energy spectra of protons transmitted and reflected from thin layers of gold are presented. The simulation results are compared with experimental data. It is shown that the stopping measurement results are affected by such factors as the multiple scattering, the geometry of the experiment, and the morphology and roughness of the target. An analysis of the angular dependence for particles passing through a thin film makes it possible to obtain information about the interaction potential between a particle and a solid. The obtained results on the potential agree with the data from experiments on the reflection of particles from the surface of a solid and differ markedly from the data on the potential determined from the scattering of particles in the gas phase.
Нековалентные структуры отрицательных ионов, образующиеся при диссоциативном захвате электронов молекулами
Authors: Асфандиаров Н.Л. , Муфтахов М.В. , Сафронов А.М. , Галеев Р.В. , Пшеничнюк С.А.
Published: September 2022

The method of dissociative electron attachment (DEA) spectroscopy was used to study the attachment of electrons to 1-chloronaphthalene molecules. It has been established that the dominant channel for the decay of molecular ions is the formation of Clˉ ions in three resonances at 0.7, 1.5, and 3.0 eV. Ions [M-H]ˉ and [M-Cl]ˉ are observed at energies from 3.5 to 8.5 eV and have two to three orders of magnitude lower formation cross sections. Long-lived molecular ions were not registered. Calculations in the DFT CAM B3LYP/6-311+G(d,p) approximation predict the presence of six stable anionic structures in which the chlorine anion is coordinated to the neutral residue via noncovalent H–Clˉ–H bonds. The electron affinity of the most stable of these structures coincides with the experimentally measured value EAa=0.2771±0.003 eV. These results agree with the previously obtained data on the DEA of molecules of bromine-substituted biphenyls, naphthalenes, and anthracenes and confirm the existence of anionic structures with non-covalent H–Hal–H bonds. Such non-covalent anion structures should be extremely reactive, which makes them promising for the synthesis of self-assembling hydrocarbon nanomembranes.
Генерация узконаправленного излучения ДД-нейтронов в плазмофокусном разряде --- открытие и перспективы исследования
Authors: Аблесимов В.Е. , Малькин А.Г. , Пашарина О.Ю.
Published: September 2022

Analysis of the measurement results by scintillation detectors of the time dependence of the output of DD neutrons in a plasma-focus discharge indicates the generation of a narrowly directed neutron beam in the discharge.
The quantitative characteristics of a narrowly directed neutron beam are estimated – the output of neutrons in the beam, the duration of generation, and the angular divergence of the beam.
To estimate the beam parameters, the Monte Carlo simulation of the features of the time dependence of the signal of the scintillation detector in the conditions of a closed space in which the measurements were carried out was carried out.
Методика исследования течения миниатюрной кумулятивной струи из меди
Authors: Мелехин Н.В. , Брагов А.М. , Берендеев Н.Н. , Чувильдеев В.Н. , Баландин В.В.
Published: September 2022

A novel experimental laboratory technique for the flow of miniature cumulative jet of copper and without using explosives, is described. To perform the microcumulative tests, miniature cylindrical specimens with conical pits were used. The dynamic loading of the specimens was performed using a gas gun with a striker accelerated up to speeds of 800 m/s. The optimal specimen geometry and testing regimes, including the focal distance during microcumulation testing, were then determined. The influence of the structural condition of the sample material on the parameters of the cumulative jet has been demonstrated A preliminary analysis of the effects of copper purity and processing regimes on the ultimate dynamic plasticity characteristics was performed.
Спиновые клапаны CoFe/Cu/CoFe/FeMn и трехслойные наноструктуры CoFe/Cu/CoFe на микроволновых частотах
Authors: Ринкевич А.Б. , Кузнецов Е.А. , Перов Д.В. , Миляев М.А. , Наумова Л.И. , Макарова М.В.
Published: September 2022

The microwave magnetoresistance of CoFe/Cu/CoFe/FeMn spin valves and CoFe/Cu/CoFe three-layer nanostructures with high magnetoresistance has been studied. The transmission and reflection coefficients were measured at the frequency range from 26 to 38 GHz in magnetic fields up to 12 kOe. It is shown that the dependences of the transmission coefficient of spin valves are not symmetric with respect to the H = 0 axis, as well as the dependences of magnetoresistance. It is established that the relative changes in the microwave transmission coefficient are 1.5–2 times higher than the relative magnetoresistance measured at direct current. Changes in the reflection coefficient have a smaller value and the opposite sign with respect to changes in the transmission coefficient.
Поверхностные электромагнитные волны Дьяконова на границе раздела анизотропных двуосных кристаллов
Authors: Захарченко М.В. , Глинский Г.Ф.
Published: September 2022

A general approach to analysis of Dyakonov surface waves at the interfaces of anisotropic biaxial crystals is proposed, taking into account arbitrary spatial orientation of the media tensors principal axes. This approach is based on the operator representation of macroscopic Maxwell equations corresponding to the quantum-mechanical equations for photon states in an inhomogeneous anisotropic media. Surface wave dispersion law is investigated in the most general case. It is established that the interface eigenmode dispersion is closely related to the dispersion of bulk waves in the partnering media, which is a specific feature of Dyakonov waves. The electromagnetic field spatial distribution is investigated in the direction orthogonal to the boundary plane. The surface wave angular existence domain is determined. It’s dependencies on the rotation angles of the media optical axes are studied as well.
Электронная микроскопия микроструктуры тонких пленок сурьмы переменной толщины
Authors: Колосов В.Ю. , Юшков А.А. , Веретенников Л.М. , Бокуняева А.О.
Published: September 2022

Thin Sb films with a thickness gradient deposited in vacuum were investigated by transmission electron microscopy. Microstructures in films with increasing thickness change from amorphous islands of increasing density and size to labyrinthine and continuous films with texturing, which also changes with increasing thickness. Based on the analysis of the patterns of bend extinction contours, a strong internal bending of the crystal lattice, up to 120 deg/μm, and the dependence of the crystallographic orientations in the structures of the film on the thickness were revealed.
Распыление карбидных пленок с поверхности металла ионами гелия
Authors: Манухин В.В.
Published: September 2022

The paper investigates the dependence of the sputtering yields by light ions bombardment of the surface layers of titanium and tungsten, modified with carbon, on the thickness of the layer. The theoretical study was conducted on the basis of a sputtering model (previously adapted to describe the sputtering of two-component targets and layered-inhomogeneous surfaces), based on two sputtering mechanisms, which allows to analyze the obtained dependencies. Theoretical calculations of the total yields sputtering by helium ions bombardment of the surface layers of titanium and tungsten modified with carbon are given in comparison with the results of computer simulation obtained using the SRIM-2013pro program.
Квантовый магнитометр на основе кросс-релаксационных резонансов в ансамбле NV-центров в алмазе
Authors: Ахмеджанов Р.А. , Гущин Л.А. , Зеленский И.В. , Купаев А.В. , Низов В.А. , Низов Н.А. , Собгайда Д.А.
Published: September 2022

We create a working model of a magnetometer of a new type that is based on using cross-relaxation resonances in ensembles of NV-centers in diamond. This type of magnetometer does not require microwave radiation. For a sensor made out of a 300 micron diamond we demonstrate the magnetic field sensitivity of around 18 nT/Hz^{1/2}.
Modelling the Collapsing University
Authors: Papanikolaou Vaia , Roussakis Yiannis , Tzionas Panagiotis
Published: September 2022

Although university’s contribution to the democratic society has been studied adequately, the establishment of its internal democratic institutions has not. Issues of autonomy and accountability exist whereas, today’s Postmodernism introduces further uncertainty. After constructing a framework for measuring democracy within a university using democracy indicators selected from international organizations, we attempt to interrelate these indicators to its democratic characteristics, raising the question: “To what extent could these characteristics be eroded before the university collapses?” Interviews with European academics were conducted and the influence of forces external to the university were studied using the Central European University in Hungary as a case study. The findings show that increased state control undermines institutional autonomy and so does imposing unnecessary restrictions. Protecting democracy and academic freedom, civil rights, and supporting an open society are of paramount importance, otherwise the university collapses. A model that captures such catastrophic state changes is finally proposed.
Authoritative Allocation of Values
Authors: Lane Jan-Erik
Published: September 2022

Political systems allocate values authoritatively, stated David Easton in a few major books. The allocation of public services and distribution of transfer payments make up the public sector which everyone is bound by. The structure of authority has strong impact upon two values, freedom and equality. It is the outcome of the profound principal-agent game that is the core of politics.
An Investigation of the Effect of Different Feedback-based Assessments on Oral Performance and Attitudes of Iranian EFL Learners
Authors: Valoojerdy Zahra Karimi
Published: September 2022

Feedback is a core component of the learning process which has three levels: teacher feedback, peer feedback and self-feedback. The role of teacher feedback has received considerable attention from second language acquisition (SLA) researchers for the past three decades. Assessment is another factor in improving learning. The present study is an attempt to investigate and compare the effects of peer feedback-based assessment, teacher feedback-based assessment, and self-feedback-based assessment on oral performance of EFL Iranian learners and also learners’ attitudes toward them. The assessments’ rubric criteria used in this study was based on 14 points scale of Yamashiro and Johnson (1997). The participants comprised 84 TEFL students. A mixed method experimentation design was followed with a between-groups comparison in which independent groups have been compared followed by another phase looking for students’ views through an attitude survey. This study used descriptive statistics, Pearson product moment correlation, one-way ANOVA and post hoc test. The results revealed that teacher feedback-based assessment group performed significantly better than the other two groups in oral performance.
An Exploratory Study of Entrepreneurship Development in Kogi State
Authors: Sule Yunusa , Nafiu Akeem Tunde , Abdullahi Mohammed Habeeb
Published: September 2022

This study aimed to unveil the challenges confronting entrepreneurship development and the impact of government support in Kogi State. The study determined the effect of government support on entrepreneurship skills development in Kogi State and examined the influence of government policies on entrepreneurship skills development in Kogi State. The survey research design was used in this study. A convenient sampling technique was adopted, and 296 participants were taken. Data were gathered and analyzed using descriptive statistics, Multiple Regression and Ordered Probit Regression. The study found that government support had a substantial effect on the development of entrepreneurship skills in Kogi State. Findings also demonstrated that government policies in Kogi State have a limited effect on the development of entrepreneurship skills. The study’s limitations are attached to the small sample size, which may not stand as a perfect representation, as well as the inability of the study to exhaust the factors challenging entrepreneurship development. The results of the study provide insight into cardinal factors affecting entrepreneurship development in Kogi State, the degree of the effectiveness of government support and the government policies that need review. Entrepreneurship skills development is crucial for driving social and economic development. Unveiling the challenges confronting it provides a pipeline for remedies and the needed support from the government. The study is novel as it links with sustainable entrepreneurship programs. The study is intended to widen the knowledge of the audience and establish a theoretical relationship that can be considered by practitioners in the field of entrepreneurship.
Unintended Consequences of Coronavirus on Education Participation in Budalangi Sub-County of Busia, Kenya
Authors: Mackatiani Caleb Imbova , Likoko Sarah Naliaka , Mackatiani Navin Imbova
Published: September 2022

This study looked at the unintended effects of coronavirus infections on students’ engagement in school in the Kenyan region of Budalangi. Floods frequently occur in the Budalangi region. The impact of child labor on student engagement was examined in this study. Due to the financial crisis and the terrible circumstances they experienced while living at the camps, the majority of students were unable to access learning materials online since their parents could not afford to support their children’s education. Notably, the majority of the pupils residing in the camps helped their parents with manual labor to make a living, including gathering sand, laboring in rice fields, and fishing along the shores of the River Nzoia and Lake Victoria. The studies also determined how teen pregnancies and young marriages affect student participation. These activities made it difficult for them to study. Poor return rates and low engagement rates in education are hence symptoms of the issue. This is a result of the community setup’s poor social and economic ties. This is consistent with what the UNICEF Executive Director said about how COVID-19 has affected students’ participation in school. He emphasized that COVID-19 had a detrimental effect on students’ attendance.
CENTIPEDE VENOM TOXINS AND ITS BIOMEDICAL AND PHARMACOLOGICAL PROPERTIES
Authors: YADAV NIDHI , UPADHYAY RAVI KANT
Published: September 2022

The present review article explains venoms from various centipede species with their biomedical and pharmacological properties. Centipede venom is a natural source of bioactive proteins, peptides and other small molecules. These use venoms as defense arsenals to paralyze prey. This review paper sketch out important physiological effects like platelet aggregation, anticoagulant, phospholipase A2 and trypsin inhibiting activity. Centipede venom toxins selectively bind Kv2.1 channel and block them. Centipede venom disrupts cardiovascular, respiratory, muscular and nervous systems by targeting the broadly distributed KCNQ channels. It also signifies toxin-voltage-gated integrations and its inhibition. These peptides can be used for developing drugs for treatments as well as bio-insecticides for insect control.
THERAPEUTICS APPROACHES OF INVERTEBRATE ANIMAL TOXINS: A REVIEW
Authors: SHARMA SIMRAN , UPADHYAY RAVI KANT
Published: September 2022

The present review article describes invertebrate venoms and various toxins secreted by them. Animal venoms are stores of novel peptides which exhibit a wide variety of biological effects and actively interact with pathogen and parasites. Animal toxins selectively bind to ion channels and receptors and display show hemolytic, cytolytic, proteolytic, anti-diabetic, antimicrobial and analgesic activity. These generate allergic and inflammatory responses in victims. These disrupt cell membranes and inhibit bacterial growth and kill them. Animal toxins inhibit virus entry into host cells and obstruct virus replication. These were also found highly effective against protozoan and fungal pathogens. By using bioinformatics tools, methods and approaches, both structural and functional diversity of toxin peptides could be harnessed to develop highly effective broad-spectrum drugs for therapeutics. Animal venoms are an inexhaustible source of bioactive molecules, which could be used for the development of immune diagnostics, various pharmaceuticals for therapeutics and bio-insecticides. Present article tries to explore the exceptional specificity and high potency of animal toxins for drug development.
Supercritical water oxidation for the treatment of various organic wastes: A review
Authors: Al-kaabi Falah Kareem Hadi
Published: September 2022

The removal of complex organic and chemical industrial wastes is not accessible using conventional treatment methods. Incineration and hydrothermal oxidation under supercritical conditions are two options for dealing with a wide range of hazardous wastes. Incineration is an effective treatment for removing hazardous waste. The main disadvantages of incineration are a source of unwanted emissions and high operating costs. Supercritical water oxidation (SCWO) is considered a green technology for destroying organic waste with friendly environmental emissions. The removal efficiency reached 99.99% within a short residence time. In this review, the treatment of organic waste by SCWO is shown using co-fuel and catalysts to enhance the performance of SCWO.
Fake Product Review Monitoring System
Authors: UG Deekshitha K , R Deepa
Published: September 2022

Abstract: In the current scenario, the data on the web is growing to a larger extent. Social Media is generating a large amount of data such as reviews, comments and customer’s opinions on a daily basis. This huge amount of user generated data is worthless unless some miningt e c h n i q u e s are applied to it. Nowadays, there are several people using social media reviews to order anything through online. Online spam detection is one of the herculean problems since there are many faux or fake reviews that are created by organizations or by the people themselvesfor various purposes. Such organizations tend to write fake reviews to mislead readersor automated detection systems by promoting or demoting the targeted productservices. Fake reviews detection has recentlybecome a limelight that’s capturing attention. Fake reviews are generated intentionally to mislead readers to believe false data that makes it tough and non-trivialto discover supported content. Hence, it is highly necessary to create a monitoring system which thoroughly checks for fake reviews among various product websites andremoves them promptly.
Blockchain Based Secured Document Storage for Cloud
Authors: R Rushyanthan
Published: September 2022

Abstract: Internet is the most common way used to share data around the globe. This sharing is backed by various cloud providers that allow customers to store & share data on the internet. But when it comes to privacy, cloud providers have consistently failed to make data 100% secure. Many data breaches, data piracy, hacking attacks have threatened the security mechanism of cloud providers. Though data stored by the customers should be 100% secure as it may contain private data which must be only accessible to the owner itself and some intended audience. So, it is very important to make this system more secure, so that data privacy & trust onto cloud providers can be maintained. We introduce a system that leverages the security of cloudbased data onto the blockchain. It allows users to store data onto the cloud and provides a prominent access control mechanism that will ensure the privacy of data. Users will be able to share data with other people in a permissioned manner by sharing the link for document with the intended user. Logs of all the operations performed with the document will be available to the owner at any instance of time. This will ensure the actual ownership & privacy of the data. Any person or third-party will not be able to access document without valid permission. This will make existing cloud storage more secure & decrease the data breaches & several attacks.
Development of AWS based E-invoice Platform for Trading
Authors: R Thejasree , A Thyagaraja Murthy
Published: September 2022

Abstract: Global container shipping is the phenomenon of packing goods into containers and transporting them across country borders. A global container shipping trip often involves multiple carriers, third party logistics firms, and fourth party logistics firms. Based on previously agreed-upon contract pricing with the shippers, these businesses bill base service costs, unexpected service fees, and value-added service fees through freight invoices. This study introduces an AWS-based system for creating electronic invoices for carriers of goods when one or more carriers are involved in the shipment of products from a shipper's origin location to a destination location outside of the country of origin. Real-time shipment tracking data and previously agreed-upon service contract pricing between the shipper and the carrier are largely used in the preparation of an invoice for a carrier. Our solution improves the effectiveness of the e-invoicing process and reduces expenses for the shippers and carriers involved in international trade. The' main reasons for adopting AWS-based e-invoicing solutions are to decrease the frequency of invoice disputes, speed up dispute settlement, and offer real-time audits
Design Optimization of Synchronous Buck Converter (SBC)
Authors: C K Suman
Published: September 2022

Abstract: Nowadays Switched-mode power converters are playing a significant role in the industries by providing higher efficiency for various applications. There are various applications that implement power supply and battery charge circuits for devices like smartphones, TVs, and various electronic devices When it comes to DC-DC Converters the most popular among the industries are buck converters and the efficient version of the buck converter is the Synchronous buck converter. The SBC steps down the voltage from higher to lower levels. Efficiency is a crucial parameter as the industry’s focus is on delivering greater performance devices. The power converter's design must be optimized to maximize performance to achieve customer expectations. As a result, a thorough understanding of the synchronous buck converter and how to properly select the circuit components is critical. The proposed work aims at optimizing the Synchronous Buck Converter components such as Inductors, Capacitors, and Resistors. The idea of this optimization study is to improve the performance of the converter and reduce power losses and cost-cutting. In this paper, the control mode considered is peak current mode control.
Blockchain Based Pubic Distribution System
Authors: Hussaini Syeda Amira , Murthy A. Thyagaraja
Published: September 2022

Abstract: The Public Distribution System (PDS) is a digital scarcity management system that distributes food grains to lowincome families at affordable prices. It began in the 1940s as a way to alleviate food scarcity caused by World War II. Illegal usage, overcrowding, inability to obtain materials at any time, processing speed, household selection, targeting of bogus cards, and ration card hijacking are some of the problems of the current PDS. To address this flaw, the suggested solution makes use of blockchain technology, which is a cutting-edge technology. Because the data is sensitive and critical, blockchain improves security, and it can substantially alter how your critical information is seen because it is a distributed ledger.
Sistem Pendukung Keputusan Penerimaan Zakat dengan Metode Weight Product di LAZISMU Yogyakarta
Authors: Lambogo Adhitya Rakasiwi , Yuliansyah Herman
Published: September 2022

Zakat is one of the five pillars of Islam and is conducted by giving wealth to those who are entitled to receive it. The Lembaga Amil Zakat Infaq Sadaqah Muhammadiyah (LAZISMU) is a zakat institution in Muhammadiyah that receives and distributes zakat to its recipients. LAZISMU examines recipient data to determine several factors, including housing index, property ownership, family living conditions, worship routines, business marketing, operational operational finance, and human business resources. Based on an interview with the LAZISMU committee, it was stated that the delivery of zakat was conducted by selecting prospective zakat recipients based on pre-existing criteria. However, the LAZISMU committee uses perceptions or assumptions to select prospective zakat recipients and can make wrong decisions. This study proposes a support system for selecting zakat recipients based on the Weight Product (WP) method. This decision support system can select zakat recipients automatically by determining the parameters for each zakat criteria. The result of the decision is the ranking of prospective zakat recipients. The support system is checked using the Black Box test and User Experience Questionnaire (UEQ). The UEQ test results show that the value of attractiveness, speed, efficiency, accuracy, stimulation, and novelty gets excellents results.
Forecasting Saham Dengan Metode CRISP-DM Dan Algoritma Vector Autoregression Studi Kasus Saham ICBP.JK
Authors: Khaqim Muhamad Nurul , Triayudi Agung , Solihati Ira Diana
Published: September 2022

Memperkirakan data saham telah menjadi salah satu isu penting terutama bagi orang yang memilih investasi saham sebagai salah satu sarana manajemen keuangan. Banyak penelitian yang sudah dilakukan untuk membantu memperkirakan data saham dimasa depan menggunakan machine learning. Namun kebanyakan model machine learning yang digunakan kompleks dan hanya memprediksi satu variabel deret waktu. Pada penelitian ini berfokus pada membuat model machine learning menggunakan algoritma VAR untuk memprediksi beberapa variabel sekaligus dengan 1 model dan memberikan rekomendasi dan menggunakan kerangka kerja CRISP-DM dalam mengadakan penelitiannya. Variabel-variabel tersebut adalah harga pembukaan, tertinggi, terendah dan penutupan. Pada akhir penelitian diketahui model VAR mampu menghasilkan model yang mampu memprediksi 3 variabel sekaligus yaitu harga tertinggi, terendah dan penutupan dengan skor R2 masing-masing yaitu 0.60, 0.51, 0.54 dan menggunakan optimal lag 273 namun untuk variabel harga pembukaan dibuatkan model terpisah dengan beda lag yaitu 2 lag dan skor R2 0.63.
Aplikasi Tracking Rekreasi dan Aktivitas Menggunakan Model View ViewModel di Provinsi Sulawesi Selatan
Authors: Rismayani Rismayani , Patasik Madyana , Layuk Novita Sambo , Saputra Suryadi , Muhajir Ahmad
Published: September 2022

Sulawesi Selatan adalah sebuah provinsi di Indonesia yang terletak di pesisir barat daya Pulau Sulawesi. Daerah ini dihuni oleh banyak suku, antara lain suku Makassar, Bugis, Toraja dan Mandar. Kawasan yang hampir seluruhnya dikelilingi laut ini menawarkan berbagai aktivitas rekreasi dan objek wisata menarik yang bisa dikunjungi. Permasalahan dalam penelitian ini adalah belum adanya sistem pengelolaan informasi di Sulawesi Selatan untuk informasi di berbagai daerah di Provinsi Sulawesi Selatan dan bagaimana mengimplementasikan konsep model View ViewModel (MVVM) dalam merancang sistem pelacakan aktivitas dan rekreasi di Provinsi Sulawesi Selatan. Tujuan dari penelitian ini adalah untuk membuat sistem pelacakan aktivitas dan rekreasi berbasis android di Provinsi Sulawesi Selatan dan mengimplementasikan view viewmodel (MVVM) dalam proses pelacakan aktivitas dan rekreasi di Sulawesi Selatan. Metode dan teknologi yang digunakan adalah Model View View Model (MVVM) dengan teknologi berbasis android, Model View ViewModel (MVVM) merupakan salah satu pola arsitektur yang digunakan dalam pengembangan perangkat lunak berbasis Graphical User Interface (GUI), sedangkan android sebagai operasinya sistem untuk perangkat seluler. Hasil penelitian menunjukkan bahwa sistem ini dapat membantu wisatawan menemukan tracking aktivitas dan rekreasi di Sulawesi Selatan dan dengan penerapan View View Model (MVVM) sistem tracking aktivitas dan rekreasi menjadi lebih menarik, efektif dan efisien. Berdasarkan pengujian fungsional yang dilakukan ditemukan hasil yang valid terhadap semua fungsi dari sistem. Berdasarkan hasil kuesioner untuk mengetahui manfaat dari sistem yang dibagun diperoleh dari 50 responden hasilnya menyatakan 86, 7% bermanfaat.
Strategi pemasaran muntigs bar and restaurant nusa lembongan dalam meningkatkan penjualan di masa pandemi covid-19
Authors: Dewi Ni Putu Elma Mutiara
Published: September 2022

Penelitian ini bertujuan untuk menganalisis strategi pemasaran yang dilakukan oleh Muntigs Bar and Restaurant dalam meningkatkan penjualan di masa pandemi Covid-19. Metode penelitian yang digunakan adalah metode deskriptif kualitatif. Adapun teknik yang digunakan dalam mengumpulkan data adalah observasi dan wawancara. Dari hasil dokumentasi dan wawancara yang dilakukan dengan pengelola Muntigs Bar and Restaurant. Hasil penelitian mengungkapkan bahwa secara umum, tingkat penjualan Muntigs sangat menurun drastis. Pihak pengelola Muntigs telah melalukan berbagai strategi marketing yakni layanan take-away, promosi, kerja sama dengan e-commerce serta menerapkan protokol kesehatan yang ketat. Namun menurut pengelola, strategi yang diterapkan belum secara maksimal berhasil. Adapun faktor yang mempengaruhi adalah kebijakan pemerintah membatasi jam operasional perusahaan sehingga perusahaan tidak bisa beroperasi secara maksimal.
Vegetation restoration in dryland with shrub serves as a carbon sink: evidence from a 13-year observation at the Tengger Desert of Northern China
Authors: Gao Yanhong , Liu Lichao , Ma Shaoxiu , Zhou Yuanyuan , Jia Rong-liang , Li Xinrong , Yang Haotian
Published: September 2022

Dryland area accounts for about 40% of land area, which play a
significance role on regulating the carbon sequestration variability of
land. Vegetation restoration in dryland, which is a widely adopted to
prevent land degradation, could potential serve as a carbon sink based
on the short-term observation. However, the sustainability of the carbon
sink for the revegetated ecosystem in dryland is still unknown due to
the lack of the long term of the observation data. Thus, we are aiming
to investigate the carbon sequestration ability of the planted
vegetation in dryland area in long run. Based on the observation of the
long established revegetation, we found the revegetation area serves as
a carbon sink in all of the year as net ecosystem production (NEP) is
positive and demonstrate a significant increasing trend by 5.65 gC m
 yr . The increase in spring
temperature, the earlier start of carbon earlier onset of carbon uptake
and longer duration of carbon uptake may contribute to the emergence of
a gradual trend in NEP, but the amount of annual NEP was more determined
by summer precipitation. Meanwhile, our results revealed that the
increasing of carbon sequestration by the revegetation is not
over-consuming water resources as there is no soil water depletion. This
highlights that revegetation in dryland area could serves a carbon sink
in long run.
Post COVID 19 and the Challenge of Solid Wastes in Mangu Local Government Area of Plateau State, Nigeria
Authors:   Department of Social Studies Federal College of Education Pankshin Plateau State, Nigeria, Polmi Ibrahim
Published: September 2022

This study looks at Post COVID 19 and the challenge of solid wastes in the Mangu Local Government Area of Plateau State, Nigeria. The study adopted a descriptive survey design with a population of residents in Plateau State. A simple random sampling technique was used to draw a sample size of 200 respondents from the population. A self-designed questionnaire: Post COVID 19 and the challenge of solid waste management in Mangu Local Government Area of Plateau State, Nigeria. Data was collected with the help of questionnaire and analyzed with charts. Also, the hypothesis was tested using a chi-square statistical technique to test the relationship. The findings revealed that an increase in plastics, an increase in disposable gloves, personal protection equipment, and an increase in aprons and gowns are some of the nature of solid waste management during COVID 19. It was established that an increase in household consumption, the accumulation of households’ consumables, and lack of access to waste collections were some of the main causes of solid wastes during COVID-19. The study also revealed that the effects of solid wastes during COVID-19 were environmental pollution and health risk, an increase in organic waste, stress on the available waste management system, among others. Based on the findings, the study recommended among others that regular solid waste management, use of disinfectants, face masks, and provision of a proper solid waste disposal methods were among the solutions to the problems of solid waste generated during COVID-19. Keywords: COVID-19, Challenge, Solid Waste Management.
Environmental Education: A Pivot to Healthy Environment and Sustainable Development in Nigeria
Authors:   Department of Social Science Education, School of Social Science Education, Bamidele Olumilua University of Education, Science and Technology Ikere-Ekiti, Nigeria., Fasiku Adesola Mercy
Published: September 2022

Contemporarily, man has undertaken a lot of activities that have adverse effects on the environment wherein he dwells. The effects of those activities became so intense that the health and hospitality of the environment began to degrade. In Nigeria, environmental health related issues are becoming a major concern of the people and the government with exacerbated environmental challenges such as flooding, air pollution, water pollution, oil spillage, deforestation, desertification, climate change and other environmental issues. Premised on this background, this paper analyses the situation, gives an open view to the matter of health, clearly discusses the subject ‘environment familiarizes you with the practical relationship between health and environment', and the concept of Environmental Education.The paper discusses the conceptual meaning of Education, Environmental Education and Healthy Environment. In addition, it established various ways environmental education will enhance healthy environment in Nigeria. The study seeks to identify and examine the impacts of environmental education on healthy environment in Nigeria; it established the nexus between Environmental Education and Healthy Environment. The data for this study were collected through secondary sources. The secondary data were obtained from textbooks, journals, newspapers, internet materials and literature from academic journals in relation to the subject studied. The paper explored thematic and the descriptive method on approaching the arising issues. The study adopted Community Development Theory as a theoretical framework. The paper concludes that health, they say is wealth; for any nation to experience sustainable development, her environment must be the kind that is friendly with her citizens; it must be free all forms disease or epidemics. To this end, the paper concludes by recommending various steps that could be taken to reposition the environment towards making it healthy and hospitable through the introduction of environmental education in school’s curriculum at all levels in Nigeria. Keywords: Education, Environment, Health, Environmental, Living, Development
Foreign Direct Investment (FDI) Inflow and Insecurity in Nigeria: An Empirical Analysis
Authors:   1Department of Economics, School of Management and Social Science, BOUESTI, Nigeria. 2Department of Economics, Faculty of Social Science, FUOYE, Nigeria. 3Department of Economics, Federal College of Education, Yola, Nigeria., Omoniyi Olutoyin Babatunde , Olasehinde Timilehin John , Kekeroowo Isaac Oluwafemi
Published: September 2022

This paper empirically examines the impact of defence and security on foreign direct investment (FDI) in Nigeria using quarterly historical data covering the period of 1994q1-2019q4 and an ARDL and VAR econometric techniques are adopted as tools of data analysis. The results from both econometric approaches revealed that foreign direct investment responds negatively to the exogenous occurrence of security threats both in the short and long runs. Also, economic instability and uncertainty are shown to cause drag in foreign direct investment inflow in Nigeria. This study further shows that economic liberalization, proxy with trade openness, and economic progress, proxy with the growth of gross domestic product per capita contribute immensely to the flow of foreign direct investment into Nigeria. The study recommendations drawn from the findings are that national security challenges should be addressed without delay by the government at all the tiers levels to change the course of the downward trend of FDI in Nigeria; establish risk adverting policy to reduce economic uncertainty; promote price stability policy to reduce economic instability; diversifying the economy to further increase economic progress which greatly drives FDI inflow, and encourage economic liberalization which brings benefit through market expansion. Keywords: Insecurity, foreign direct investment, uncertainty, instability, trade openness Journal Reference Format: Omoniyi, O.B., Olasehinde, T.J. & Kekeroowo, I.O. (2022): Foregn Direct Investment (FDI) Inflow and Insecurity in Nigeria: An Empirical Analysis. Humanities, Management, Arts, Education & the Social Sciences Journal. Vol. 10. No. 2, Pp 1-12. www.isteams.net/humanitiesjournal . dx.doi.org/10.22624/AIMS/HUMANITIES/V10N3P1
Mass Species of the Sea Star Asterina Pectinifera as a Potential Object of Mariculture
Authors: Drozdov Anatoliy
Published: September 2022

Starfish Asterina (= Patiria) pectinifera) is widely distributed along the western coast of the Pacific Ocean from Sakhalin Island to the Yellow Sea. This is the most numerous species in the Peter the Great Bay of the Sea of Japan. Asterina tissues in large quantities contain a mixture of carotenoids, the most famous of which is astaxanthin. The developed technology of complex processing of A. pectinifera starfish allows to obtain biologically active collagen peptides and carotenoid preparations enriched with astaxanthin, exhibiting immunomodulatory, anti-inflammatory and antioxidant activities. They can be used as a raw material for obtaining new medicinal, cosmetic and food products.
On the Correspondence between Stable Carbon Isotopes in Planktic Foraminiferal Species Globigerina bulloides and the Nutrients along a North-South Transect in South-Western Indian Ocean
Authors: N Khare
Published: September 2022

During the pilot expedition to the Southern Indian Ocean onboard ORV Sagar Kanya a total of twenty one surface sediment samples were collected along a north-south transect between 9.50 N to 55.010 S latitude and 73.560 E and 44.860 E longitudes. These samples were collected to study the response of carbon isotope (δ13C values) fractionation in calcareous shells of planktic foraminiferal species Globigerina bulloides towards the nutrient contents of the ambient sea waters along a northsouth transect in the south-western Indian Ocean. It may be inferred that isotopic values (δ13C) in general increase as the nutrient content of ambient water masses decreases in the regions south of 300 S latitude. On the other hand δ13C values are relatively low in the region north of 30o S having higher nutrients in the ambient waters. The results of present study demonstrate the potential of foraminiferal δ13C values to trace the signature of paleo-nutrients changes in this region. The inferences drawn here further necessitates to take up similar studies along many transect in and around study area to arrive at a comprehensive picture.
Efficacy of Astaxanthin Fed to Rainbow Trout (Oncorhynchus mykiss): Effect on Growth, Pigmentation and Blood Indices
Authors: Zorriehzahra ME Jalil
Published: September 2022

In this study, the effect of astaxanthin on growth, pigmentation and blood factors were studied in rainbow trout weighted average (93±0.64 g) for 8 weeks. Two treatments and three replicates were employed as follows: Treatment A: fed with a commercial diet (control), treatment B: 41 mg/kg astaxanthin. All treatments were fed in hours 8, 12, 16, respectively. It should be considered that the feeding rate of biomass weight was examined after each took biometrics. Finally, blood samples were taken from the fish. The results revealed a significant difference between treatments in terms of weight and length (p<0.05) and no significant difference (p>0.05) in food intake and growth performance parameters, including FCR, SGR, GR, BWI%, and survival rate between treatments. In terms of pigmentation between experimental treatments, astaxanthin was created more change color than the control group. Results of blood factors showed that between WBC, RBC, Hb, HCT, Lymphocytes, Neutrophils, Monocytes and IgM were significant differences between treatments (p<0.05). So we can conclude that 41mg/kg astaxanthin dietary, due to economy, would be proper diet in the feeding of rainbow trout propagation.
Monthly and Spatial Distribution of Ocean Wave Parameters in the Bay of Bengal Using ERA5 Reanalysis Data
Authors: Ahamed Raiyan
Published: September 2022

The purpose of this study is to assess the spatial distribution of ocean wave parameters, and their correlation and anomalies in the Bay of Bengal (BoB) using about 40 years of ERA5 reanalysis data. Collected data were analyzed by using geographic information system (GIS) and computer programming languages. It is revealed that higher values of SWH (2.50–2.58m) dominated the central, southern and south-western BoB during June–August. The monthly climatological mean of MSS and Cd are ranged from 0–0.013 and 0.0006–0.0016 respectively in the study area. WSP were higher (10.31–10.84m/s) in southwestern BoB during June–August. Tm is higher (11.23–11.03s) during April–September in southern and south–eastern BoB. Lower Tm (2.36–2.73s) is found in western and eastern BoB. SWH, WSP, Tm, MSS and Cd have unfolded significant impact on each other during most of the month. Strong anomaly has been reflected in the SWH, WSP, and Tm during March–April.
Comparative Study of Length-Weight-Relationship (LWR) of the Fishes and Fishing Gears Use in Goronyo Reservoir and River Rima in Sokoto State, Nigeria
Authors: IA Gusau
Published: September 2022

Length - weight relationship is an important fishery management tool in estimating the average weight at a given length group and in assessing the relative wellbeing of a fish population.This study was conducted for six months, from April to October 2018 in both Goronyo reservoir (GR) and downstream River Rima (RR) to compare and evaluate the Length-WeightRelationship (LWR) of some important commercial fishes and fishing gears used in the two water bodies. Five (5) and three (3) fish landing sites were purposively selected from Goronyo reservoir and River Rima because of their high fish landings and 10 fishermen were randomly selected and their catches monitored. The length and weight values were transformed into natural logs through the regression equation Log W = a + b Log L using SPSS computer software version 22. A total of 66 fish species were identified from the two water bodies, Goronyo reservoir accounted for 28 while River Rima accounted for 38 and 22 species were common in both water bodies. The mean b values of the LWR indicated that Latesni loticus, Bagrusbayad macropterus and Auchenoglanisocci dentalis exhibited positive allometric growth pattern in both water bodies, but slightly higher in Rima River (b = 3.9, 3.51, 3.7 in Rive Rima and 3.8, 3.04, 3.5 in Goronyo Reservoir) respectively. The least mean b values (b = 2.01) of LWR was recorded in respect of Synodontisgobroni in River Rima while Labeocoubie exhibited the highest b value of 3.93 in River Rima with SE value of 0.392. Gill nets were the most frequent gear used in Goronyo reservoir, and the least (3.14%) was cast net while hook and lines were almost equally used in both water bodies. In conclusion, the positive allometric growth pattern exhibited by Latesniloticus, Bagrusbayad and Auchenoglanisocci dentalis indicated favorable aquatic environments for the species to thrive well, therefore management practices should be centered on maintaining these aquatic environments. Labeocoubie should be re-introduced in both water bodies because they exhibited positive allometric growth pattern despite expected predation from Latesniloticus and fishing mortality. More attention should be given to the types of gears used in the water bodies in order to avoid catching smaller fishes. Selective gears like gillnet must conform to the Sokoto State Fisheries Edict of 1988 in order to protect heavily fished species such as Synodontis species from being over exploited. Finally, more studies are recommended to determine the effect of sex on LWR of some fish species in the two waterbodies.
Evaluating Householdâ€™s Willingness to Pay for Catfish Species Conservation in Lake Hawassa, Sidama National Region State, Ethiopia
Authors: Hundie Kebebew
Published: September 2022

Lake Hawassa is one of the main freshwater shallow Lakes found in the central Ethiopian Rift Valley. The total of aquatic and terrestrial habitats adjoining the Lake facilitate the rich diversity of flora and fauna compared to other Ethiopian Rift valleys Lakes. However, the biomass of catfish species in this Lake is declined from time to time. So, the purpose of this study was to evaluate household’s willingness to pay and determine the factors affecting willingness to pay for catfish species conservation in Lake Hawassa, Sidama National Region state, Ethiopia. The survey was conducted through face-to-face interviews of 200 respondents. The elicitation method used to value is contingent valuation, through a single dichotomous choice and openended follow-up question. The probit model was used to identify the willingness to pay of the respondents. The descriptive result showed that the respondent’s average age was 28.82 years, the experience of respondent’s in fishing was 9.3 years, income from fish was 85.8 US$ per year, a distance of respondent’s home from Lake was 41.54 minutes and land size was 0.2313 hectares and from the total sampled respondents 75% were male and 25% were female. About 82.5% of the respondents were willing to pay and 17.5% were unwilling to pay for catfish species conservation in Lake Hawassa. The mean willingness to pay for catfish species conservation of respondents was found to be 3.62 US$ per year and aggregating the mean value of total respondents would give 954,090.23 US$ per year. The probit model result revealed that the total income, training on fish species conservation, and experience of respondents on fishing were positively affected the willingness to pay. On the other side, the distance of respondent’s home from Lake and land size of respondents have negatively affected willingness to pay. So, training and awareness creation is needed to fulfill the knowledge gap of communities on catfish species conservation.