bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the Impact of Mixed Reform of State-Owned Enterprises on Enterprise Performance—Based on PSM-DID Method
Authors: Xie Fusheng , Yang Peixiang
Published: February 2023

Based on the data of China Industrial Enterprise Database, this paper uses the propensity score matching double difference method (PSM-DID) to study the impact of mixed ownership reform of state-owned enterprises on enterprise performance. The study found that mixed ownership reform of state-owned enterprises can enhance the performance of enterprises. Further considering marketization, industry competition and regional characteristics, it is found that the effect of reform is heterogeneous. When the degree of marketization is high, the effect of reform on improving productivity is good, and when the degree of marketization is low, the effect of reform on reducing debt is good; the reform effect of industries with low degree of competition is better than that of industries with high degree of competition. The reform of state-owned enterprises in the eastern region has the best effect, and the reform in the central region has a better effect on reducing debt. The effect of mixed ownership reform in the western region is not significant.
Do FDI Inflows into African Countries Impact Their CO2 Emission Levels?
Authors: Boamah Valentina , Tang Decai , Zhang Qian , Zhang Jianqun
Published: February 2023

The emitted levels of CO2 continue to be a striking topic. These emissions have been growing over the years, thus, making them a predicament to be reckoned with. Eradicating such a predicament has not been easy because finding an optimal determinant has not been achieved by scholars; however, foreign direct investment inflows are known to play a role in such varying instances. Therefore, to analyze the impact that such inflows have on CO2 emissions, this study employs data from 41 African countries from 2005 to 2019 and aims to assess how foreign direct investment and other variables influence CO2 emitted levels. Moreover, this study tests the validity of the pollution haven and halo hypotheses on the employed African countries as its two main objectives. After applying the pooled least squares, fixed and random effects models, and the generalized method of moments, the findings revealed that per the adopted African countries, the pollution haven and halo hypotheses do not hold; however, foreign direct investment inflows contribute to the rising and falling levels of CO2 emissions. In addition, the financial structure and per capita GDP increase the African countries’ CO2 emitted levels, while trade openness causes a reduction. Based on the aforementioned findings, this study recommends that the government, policy-makers, industries, and interested personnel of this study’s employed countries should: apply and execute policies, laws, and regulations that will deter or punish polluting foreign investment and encourage clean ones; since green finance is making waves but is not well established in most African countries, green financing systems should be initiated and implemented; establish preferential trading policies that will highlight an addition of value via clean technology; and practice carbon capture, usage, and storage.
Thermal Performance Optimization of Multiple Circuits Cooling System for Fuel Cell Vehicle
Authors: Huang Hao , Ding Hua , Hu Donghai , Cheng Zhaoxu , Qiu Chengyun , Shen Yuran , Su Xiangwen
Published: February 2023

Due to its advantages of high efficiency, high power density at low temperature, fast start-up and zero emission, fuel cells are of great significance in automobile drive application. A car powered by electricity generated by an on-board fuel cell device is called a fuel cell vehicle (FCV). Fuel cells have a large demand for heat dissipation, and the layout space of automotive cooling modules is limited. Based on this situation, a parallel arrangement of multiple radiators is proposed. Using numerical simulation means to verify and optimize the designed multiple circuits cooling system (MCCS), from the original layout scheme based on the Taguchi method to establish the objective function of the reliability design of the MCCS, select A2/B1/C1/D2/E1/F1. In the scheme, the outlet temperature of the fuel cell is finally reduced to 75.8 °C. The cooling performance is improved, and the spatial layout of the individual cooling components can also be optimized. The whole vehicle experiment was carried out under four working conditions of full power idling charging, half power idling charging, constant speed of 40 km/h and constant speed of 80 km/h, to verify the cooling performance of the MCCS and to prove the effectiveness of the MCCS designed in this paper.
Heuristic Surface Path Planning Method for AMV-Assisted Internet of Underwater Things
Authors: Zhang Jie , Wang Zhengxin , Han Guangjie , Qian Yujie
Published: February 2023

Ocean exploration is one of the fundamental issues for the sustainable development of human society, which is also the basis for realizing the concept of the Internet of Underwater Things (IoUT) applications, such as the smart ocean city. The collaboration of heterogeneous autonomous marine vehicles (AMVs) based on underwater wireless communication is known as a practical approach to ocean exploration, typically with the autonomous surface vehicle (ASV) and the autonomous underwater glider (AUG). However, the difference in their specifications and movements makes the following problems for collaborative work. First, when an AUG floats to a certain depth, and an ASV interacts via underwater wireless communication, the interaction has a certain time limit and their movements to an interaction position have to be synchronized; secondly, in the case where multiple AUGs are exploring underwater, the ASV needs to plan the sequence of surface interactions to ensure timely and efficient data collection. Accordingly, this paper proposes a heuristic surface path planning method for data collection with heterogeneous AMVs (HSPP-HA). The HSPP-HA optimizes the interaction schedule between ASV and multiple AUGs through a modified shuffled frog-leaping algorithm (SFLA). It applies a spatial-temporal k-means clustering in initializing the memeplex group of SFLA to adapt time-sensitive interactions by weighting their spatial and temporal proximities and adopts an adaptive convergence factor which varies by algorithm iterations to balance the local and global searches and to minimize the potential local optimum problem in each local search. Through simulations, the proposed HSPP-HA shows advantages in terms of access rate, path length and data collection rate compared to recent and classic path planning methods.
What Drives China’s Exports: Evidence from a Domestic Consumption Expansion Policy
Authors: Hong Ruling , Liu Mengxun , Yang Haoming , Zhang Qianqian
Published: February 2023

The relationship between domestic demand and exports has remained the focus of the academic world for a long time. A large body of research has confirmed the promotion effect of international trade on domestic demand. This study uses a difference-in-difference (DID) model to estimate instrumental variables. In addition, we have discussed that China’s “Home Appliances to the Countryside” policy as an instrumental variable for domestic demand as it affects exports through the two-stage least squares (2SLS) method. The empirical results show that expanding domestic demand can significantly promote exports. The internal mechanism is that the subsidy policy stimulates domestic demand, which improves total factor productivity (TFP). TFP could enhance the international competitiveness of enterprises effectively. Furthermore, this study negates the channel that prices decline in promoting export. A series of robustness test policies that promote domestic demand can significantly boost exports. This study provides evidence for the solid complementary relationship between domestic demand and exports in the home appliance industry.
Hydrodynamic Model Optimization for Marine Tourism Development Suitability in Vicinity of Poso Regency Coastal Area, Central Sulawesi, Indonesia
Authors: Hermawan Surya , Mihardja Edwin , Pambudi Devian Aryo , Jason Jason
Published: February 2023

Poso regency, Central Sulawesi, Indonesia, has a coastal area that has the potential to be developed for marine tourism. It is expected that marine tourism can bring socio-economic impact to the community. This research was conducted with the objective of assessing the suitability of the area to be developed as a marine and coastal tourism site to provide benefits to the coastal community. A hydrodynamic model was used in this research for coastal area mapping. As an approach, Analysis Hierarchy Process (AHP) was utilized, whose parameters consist of depth, coast type, coast width, brightness, current speed, water base materials, observation of dangerous biota, and availability of fresh water. Based on the overall mapping area of 98,644 ha, the research results show that the area that can be utilized is 7979 ha with a ‘very suitable’ category, while there is a further area of 1045 ha which can still be classified in the ‘suitable’ category.
Roadmap Incorporating Data Management Perspective for Platform Business Model Innovation
Authors: Han Mintak , Jeon Jeonghwan
Published: February 2023

In recent business environments data has become crucial, especially in the platform business where advances in digital technology continuously increase the platform’s value by facilitating user engagement and transactions that strengthen network effects and enhance the ability to access and analyze vast amounts of data. An important challenge for platform firms is, therefore, to establish a business strategy to address data-related issues for a sustainable competitive edge. However, research is surprisingly sparse to incorporate a data management perspective into a business model roadmap which has been widely used as a strategic management tool. In this paper, we argue that the platform business model roadmap integrating a data management perspective supports platform firms in identifying a change of direction and potential gaps that are aligned with the current and future context in terms of sustainability. The purpose of this paper is to suggest a concept of the platform business model roadmap and identify what structure should be incorporated considering the virtuous cycle of the platform and data. An in-depth discussion of the suggested platform business model roadmap is expected to be of high value in terms of practicality for the platform’s sustainable growth.
Effects of Injectable Administration of Dexamethasone Alone or in Combination with Vitamin E/Se in Newborn Low Birth Weight Piglets
Authors: Papakonstantinou Georgios I. , Gougoulis Dimitrios A. , Voulgarakis Nikolaos , Maragkakis Georgios , Galamatis Dimitrios , Athanasiou Labrini V. , Papatsiros Vasileios G.
Published: February 2023

Increasing litter size may lead to low-birth-weight piglets (LBW) and further negative long-term effects. This study aimed to evaluate the effects of intramuscular administration (IM) of dexamethasone (Dexa) alone or in combination with vitamin E/Se on LBW piglets during the early postnatal period. The study included a total of 100 LBW piglets that were divided into 5 groups (20 LBW piglets per group) and treated with IM Dexa alone or in combination with vitamin E/Se (Vit E/Se) after birth as follows: (a) Group A-Cont: Control group, (b) Group B-Dexa1: Dexa on D1 (1st day of life), (c) Group C-Dexa3: Dexa on D1, D2, D3 (D2: 2nd day of life, D3: 3rd day of life), (d) Group D-Dexa + VitE/S1: Dexa + Vit E/Se on D1, and (e) Group E-Dexa + VitE/S3: Dexa + Vit E/Se (IM) on D1, D2, D3. Body weight (BW) and the Average Daily Weight Gain (ADWG) were recorded for all piglets on days 1, 7, 14, and 25, and vitality score (VS) was recorded on days 1, 2, 3, 4, and 14. A significant increase in BW and ADWG in Group E-Dexa + VitE/S3 and a significant reduction in Group C-Dexa3 were noticed in comparison to other groups. VS in groups Group B-Dexa1 and Group C-Dexa3 were significantly lower in comparison to other groups. Furthermore, piglets of Group C-Dexa3 had a significantly higher frequency of clinical findings compared to other groups. In conclusion, the administration of Dexa and vitamin E/Se combined after the birth of LBW piglets for 1–3 days has beneficial effects on their growth and survival scores.
Comparative Assessment of the Quality and Potential Uses of Groundwater in a Typical Rural Settlement in Colombia
Authors: Huerfano-Moreno Geraldine Jhafet , Rojas-Peña Jose Ismael , Zapata-Muñoz Yair Leandro , Trujillo-González Juan Manuel , Torres-Mora Marco Aurelio , García-Navarro Francisco J. , Jiménez-Ballesta Raimundo
Published: February 2023

The Sustainable Development Goals of the United Nations (SDGs) establish the need to guarantee quality water for all people. In numerous rural settlements of Colombia, access to clean drinking water is a formidable challenge as frequently observed when waterborne diseases arise, mainly in vulnerable populations without basic sanitation systems. The main objective of this study was to assess the quality and potential use of groundwater sampled from 17 monitored wells in a typical rural settlement in Colombia. Water quality was determined by applying a quality index and performing a principal component analysis (PCA) to determine the weights of each parameter. The results of the Phosphorus, Nitrates, Thermotolerant coliforms and pH variables exceeded regulatory limits, mainly in areas affected by anthropogenic sources with an insufficient sewage network. Coliform population and NO3 exceeded World Health Organization recommended thresholds for drinking water. Therefore, the qualities of the studied water samples were unsuitable for human consumption without prior adequate treatment and, hence, one recommendation is to regulate groundwater monitoring quality. In addition, unhealthy waste disposal practices should be abolished, while permanently controlled modern techniques should be introduced.
Parallel Factor Analysis with 3DEEMS of Dissolved Organic Matter from Deep Porous Medium Reservoirs in the City of Kaifeng
Authors: Qiao Weifang , Wang Xinyi
Published: February 2023

The deep geothermal water found within Kaifeng City, Henan province, China, is mainly contained within a loose-pore geothermal reservoir in the Minghuazhen Formation (Neogene Period). To understand the role and composition of Dissolved Organic Matter (DOM) in geothermal water, water samples collected from 13 geothermal wells at different depths were studied using three-dimensional (3D) excitation-emission matrix-parallel factor (EEM-PARAFAC) analysis. Fluorescent components were analyzed according to depth, and DOM in geothermal water between 800 m and 1600 m was classified. The results show that the fluorescence index (FI), biological index (BIX), and humification index (HIX) of DOM differ among geothermal water from different thermal reservoirs. Based on these three indices, the humification degree of DOM in deep geothermal water in Kaifeng City is low and is mainly derived from an endogenous source, which is closely related to microbial activities in thermal reservoirs. The fluorescent components of DOM in geothermal water from depths less than 1200 m are mainly tryptophan, tyrosine, and fulvic acid-like. The fluorescent components of DOM in geothermal water from depths greater than 1200 m are more complex, with tryptophan, tyrosine, humic acid, and fulvic acid-like components. Therefore, the characteristics of DOM composition in the geothermal water from different reservoirs in Kaifeng can also be used to infer and explain that the quality of deep geothermal water has not been affected by human activities, and there is no obvious hydraulic connection between the geothermal water of each thermal reservoir.
Factors That Impact the Implementation of Water Safety Plans—A Case Study of Brazil
Authors: Baracho Rafaella Oliveira , Najberg Estela , Scalize Paulo Sérgio
Published: February 2023

A water safety plan (WSP) is a tool proposed by the World Health Organization (WHO) for the mitigation of risks in water consumption, and little is known about the challenges of its implementation stage. The goal of this work was to identify the facilitating factors and challenges regarding WSP implementation from a case study in Brazil. Semi-structured interviews were conducted with water supply public service providers who already have implemented such policy and with supporting institutions that helped with the process implementation. As a result, it has been identified that the WSP implementation is strongly influenced by the quality of WSP preparation process, which means that this process is the foundation of the WSP implementation; through internal management of the organization, whose administrative discontinuities thwart the actions’ implementation; and through the relationship of the service provider with the external actors, which can interfere be it in the data collection or the WSP implementation scope’s entirety. Lastly, it was possible to conclude that the WSP preparation process, the organization’s internal management, and its relationship with external actors are the specific factors that impact the WSP implementation. The conduction and deepening of studies aiming to improve the tools of support for WSP implementation are thus recommended.
Biologically active additives in the feeding of broiler chickens
Authors:   Federal State Budgetary Educational Institution of Higher Education «Gorski State Agrarian University», Russia, Republic of North Ossetia-Alania, Vladikavkaz, Gurtsyeva M. S. , Kaloev B. S. ,   Federal State Budgetary Educational Institution of Higher Education «Gorski State Agrarian University», Russia, Republic of North Ossetia-Alania, Vladikavkaz, Kostomakhin N. M. ,   Federal State Budgetary Educational Institution of Higher Education “Russian State Agrarian University – Moscow Timiryazev Agricultural Academy”, Russia, Moscow
Published: February 2023

In order to increase the effi ciency of plant feed use and increase the productivity of poultry, enzyme, probiotic and prebiotic drugs are used in order to increase the effi ciency of feed use, as well as to stimulate the growth and productivity of livestock. The purpose of the research was to study the infl uence of biologically active additives under the conditions of the south of Russia such as the enzyme grug CelloLux-F, the probiotic OLIN and the prebiotic MOS-activator on the intensity of metabolism, meat productivity and the quality of meat of broiler chickens. Scientifi c research was carried out in the Breeding farm Mikhailovsky in the Republic of North Ossetia-Alania on broiler chickens of the cross Ross-308. In the scientific and economic experiment the poultry of the control group received the main diet. The poultry of the 1st experimental group in addition to the main diet received the enzyme additive Cellulux-F 1,0 kg/t of compound feed, the 2nd experimental group received the probiotic OLIN 0,02 g/head/day, the 3rd experimental group received the prebiotic MOS-activator 0,7 kg/t of compound feed. The poultry of the 4th experimental group were additionally given the enzyme additive CelloLux-F 1,0 kg/t + probiotic OLIN 0,02 g/head/day, the 5th experimental group – CelloLux-F 1,0 kg/t + MOS-activator 0,7 kg/t compound feed, the 6th experimental group – OLIN 0,02 g/head/day + MOS-activator 0,7 kg/t of compound feed and the 7th experimental group – CelloLux-F 1,0 kg/t + OLIN 0,02 g/head/day + MOS-activator 0,7 kg/t of compound feed. Based on the results of scientifi c and economic experiment and production testing of its results, a positive production and economic eff ect was established from the additional inclusion of biologically active additives in the compound feed of broiler chickens of the cross Ross-308 such as the enzyme drug CelloLux-F in the amount of 1,0 kg/t of compound feed, the probiotic OLIN – 0,02 g/head/day and prebiotic MOS-activator 0,7 kg/t of compound feed.
Unraveling Electrochemical Stability and Reversible Redox of Y-Doped Li
2
ZrCl
6
Solid Electrolytes
Authors: Chen Shuai , Yu Chuang , Wei Chaochao , Jiang Ziling , Zhang Ziqi , Peng Linfeng , Cheng Shijie , Xie Jia
Published: February 2023

Lithium halide electrolytes show great potential in constructing high-energy-density solid-state batteries with high-voltage cathode materials due to their high electrochemical stability and wide voltage windows. However, the high cost and low conductivity of some compositions inhibit their applications. Moreover, the effect of electronic additives in the cathode mixture on the stability and capacity is unclear. Here, the Y
3+
doping strategy is applied to enhance the conductivity of low-cost Li
2
ZrCl
6
electrolytes. By tailoring the Y
3+
dopant in the structure, the optimal Li
2.5
Zr
0.5
Y
0.5
Cl
6
with high conductivity up to 1.19 × 10
−3
S cm
−1
is obtained. Li
2.5
Zr
0.5
Y
0.5
Cl
6
@CNT/Li
2.5
Zr
0.5
Y
0.5
Cl
6
/Li
5.5
PS
4.5
Cl
1.5
/In-Li solid-state batteries with different carbon nanotube (CNT) contents in the cathode are fabricated. The stability and electrochemical performances of the cathode mixture as a function of CNT content are studied. The cathode mixture containing 2% (wt.) CNT exhibits the highest stability and almost no discharge capacity, while the cathode mixture consisting of Li
2.5
Zr
0.5
Y
0.5
Cl
6
and 10% (wt.) CNT delivers a high initial discharge capacity of 199.0 mAh g
−1
and reversible capacities in the following 100 cycles. Multiple characterizations are combined to unravel the working mechanism and confirm that the electrochemical reaction involves the 2-step reaction of Y
3+
/Y
0
, Zr
4+
/Zr
0
, and Cl
−
/Cl

x

−
in the Li
2.5
Zr
0.5
Y
0.5
Cl
6
electrolyte. This work provides insight into designing a lithium halide electrolyte-based cathode mixture with a high ionic/electronic conductive framework and good interfacial stability for solid-state batteries.
A Stochastic Modeling Approach for Interplanetary Supply Chain Planning
Authors: Blossey Gregor
Published: February 2023

The unique and complex challenges of sustainable interplanetary travel necessitate a novel space logistics paradigm, which is hereafter referred to as the interplanetary supply chain. To lay the groundwork for this anticipated paradigm shift, this work aims to introduce principles and methodologies of supply chain (SC) planning to the field of space logistics. To this end, a stochastic multistage mixed integer linear programming model is proposed that explores the vision of a permanent human presence on Mars from a logistics standpoint. The model optimizes material flows, propellant production, and in-space infrastructure allocations to identify the optimal SC network design. Notably, demand uncertainty at the Mars base is considered, which makes it the first model to investigate the effects of stochasticity in space logistics planning. Several case studies are investigated, which incorporate data on Earth–Mars transfer windows and flight trajectories obtained through the National Aeronautics and Space Administration’s trajectory browser. The results reveal numerous interdependencies and, thus, highlight the need for holistic SC modeling approaches that go beyond the isolated mission planning of the extant literature. For instance, the findings show frequent interactions among spacecraft as they regularly engage in division of labor regarding cargo and propellant transportation. Moreover, complex propellant supply networks that involve strategic in-space infrastructure allocation and propellant production on celestial bodies are established. Overall, the developed model provides valuable insights into the planning of a sustainable interplanetary travel, offers a new SC perspective, and lays the foundation for future research in this area.
Las promesas de la Genética al capitalismo agrario pampeano, 1912-1943
Authors: Graciano Osvaldo
Published: February 2023

Este artículo reconstruye las iniciativas burocráticas, parlamentarias y universitarias que postularon la investigación en genética vegetal como el instrumento para brindar una respuesta científica a las dificultades sanitarias y de calidad granaria de los cultivos en Argentina, que conllevó desde principios de 1900, el diseño de una renovada política del Estado en materia de ciencias aplicadas a la producción. En el cambio de siglo, políticos, funcionarios y académicos publicitaron a los nuevos conocimientos provenientes de la biología como instrumento importante para fundar la gestión técnica de la producción rural. Tanto el Ministerio de Agricultura de la Nación, como legisladores y científicos impulsaron proyectos de organización de institutos de investigación y experimentación agropecuaria en el país, fundamentados en los nuevos métodos y conocimientos biológicos, que posibilitarían alcanzar las condiciones de sanidad y calidad de los cultivos, exigidas por el mercado internacional. La genética aplicada a la agricultura, fue valorizada en la agenda parlamentaria, burocrática y académica como decisiva para alcanzar esos objetivos.
La Unidad Integrada Balcarce: actores y proyectos en la constitución de un modelo particular de investigación, extensión y docencia
Authors: Silvestro Micaela
Published: February 2023

El artículo indaga en el desarrollo de la Estación Experimental Agropecuaria Balcarce, perteneciente al Instituto Nacional de Tecnología Agropecuaria, y su integración con la Facultad de Agronomía dependiente de la Universidad Católica de Mar del Plata en 1963, formando hasta el día de hoy la Unidad Integrada Balcarce. En la reconstrucción de este proceso se busca recuperar a los actores involucrados en dicha dinámica institucional, así como el desarrollo de áreas de investigación, sin perder de vista la circulación de saberes y personas acontecida a partir de la llamada “Misión Michigan” y los Proyectos de Cooperación Técnica de la Food and Agriculture Organization. De esta manera, se procura poner en diálogo las nuevas aproximaciones analíticas acerca del Estado, las cuales realizan un estudio “desde adentro”, en pos de abordar las tensiones, confluencias de intereses e historicidad del proyecto institucional antes mencionado. El abordaje metodológico se apoyará en uno de carácter cualitativo, a partir del análisis de Boletines Técnicos fruto de las investigaciones publicadas por la EEAB, tesis de grado de la Facultad de Agronomía (FAB) e Informes de Departamentos de la UIB.
Auge y ocaso de la Universidad Nacional y Popular de Buenos Aires: El caso de la carrera de Sociología de la Facultad de Filosofía y Letras
Authors: Ghilini Anabela
Published: February 2023

En mayo de 1973 cuando el gobierno de Héctor Cámpora designa a Rodolfo Puiggrós como Rector interventor de la Universidad de Buenos Aires, una nueva reforma universitaria se puso en marcha bajo un clima de fuerte efervescencia política. El sacerdote Justino O´Farrell –figura destacada de la experiencia de las Cátedras Nacionales– asumirá como decano interventor de la Facultad de Filosofía y Letras de la denominada Universidad “Nacional y Popular”. El presente trabajo se propone contribuir a un mayor conocimiento acerca de cuáles fueron las principales medidas llevadas a cabo durante su gestión y en particular cuáles fueron las transformaciones que se dieron en la Carrera de Sociología. Como estrategia metodológica se analizan diversas fuentes escritas –principalmente las resoluciones del decanato de dicha facultad y la reforma del plan de estudio de 1974– junto con testimonios orales.
NASIF, S. (2021). Santiago del Baradero. Reducción, conservación y buen gobierno en los confines rioplatenses de la monarquía española (1615-1730). Rosario: CB ediciones, 161 páginas.
Authors: Artusa Josefina
Published: February 2023

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APLIKASI E-MARKETPLACE WEDDING ORGANIZER BERBASIS ANDROID
Authors: Wijaya Andi , Shudiq Wali Ja'far
Published: February 2023

Pasar online atau e-marketplace berkembang sangat pesat hingga merambah ke berbagai bidang, hal ini tentunya menjadi peluang untuk pelaku usaha. Peluang ini juga berlaku bagi pelaku usaha (vendor) wedding organizer, Wedding organizer (WO) adalah suatu penyelenggara acara pernikahan yang menyediakan jasa diantaranya berupa foto prewedding, tata rias pengantin, busana pengantin, dekorasi pelaminan pengantin, serta catering untuk acara pernikahan. pelaku usaha di bidang wedding organizer masih kurang maksimal dalam menjalankan bisnisnya karena banyaknya vendor wedding organizer yang memasarkan jasanya melalui media sosial tertentu, dan juga calon pengantin haruslah datang ke tempat perusahaan wedding organizer. Sehingga hal ini menyebabkan kesulitan bagi pelanggan dalam mencari vendor yang terpercaya, dan mengalami kesulitan untuk membandingkan baik dari segi harga, atau pelayanan – pelayanan yang lain. hal ini diperlukan adanya wadah sebagai penyambung antara pelaku bisnis wedding organizer dan pelanggan, sehingga perlu adanya aplikasi e-marketplace untuk wedding organizer yang berbasis android. Aplikasi ini menggunakan metode pengembangan sistem yaitu metode waterfall, dimulai dari Requirement, Design, Implementation, Verification, dan Mintenance. Dengan tujuan mempermudah vendor memasarkan jasanya serta mempermudah masyarakat untuk mendapatkan informasi mengenai jasa wedding organizer.
Implementation of Conjugate Gradient Bacpropagation Algorithm in Predicting the Percentage of Formal Labor in Sumatran Pulau
Authors: Sitanggang Julius , Yasin Verdi , Solikhun Solikhun
Published: February 2023

Formal workers work for companies as trained workers or those whose job status is employees and employees. They get stronger legal protection and official employment contracts and are in organizations that are legal entities. This paper aims to prove and implement the conjugate gradient backpropagation algorithm that can predict data on trends in formal labour on the island of Sumatra's impact Covid-19. The research data is on the percentage of formal workers on the island of Sumatra in 2015-2021, whose source is the Central Statistics Agency (BPS). This study uses 5 architectural models, namely 5-10-1, 5-15-1, 5-20-1, 5-25-1, 5-25-1, 5-30-1, 5-35-1. Of the five architectural models that have been used, the best architecture is obtained, namely the 5-20-1 model with a perf result of 0.000000002, literacy 292 in 4 seconds
Penerapan Media Pembelajaran Untuk Meningkatkan Minat Belajar Pada Mata Pelajaran IPA Di Sekolah Dasar
Authors: Firmansah Firmansah
Published: February 2023

Penelitian dilakukan dengan menerapkan media pembelajaran untuk meningkatkan minat belajar pada mata pelajaran IPA di Sekolah Dasar, Tujuan dari penelitian ini adalah untuk meningkatkan minat belajar siswa  pada mata pelajaran IPA dengan menerapkan media pembelajaran seperti gambar. Penelitian dengan menggunakan metode jenis penelitian kuantitatif dengan melakukan kajian literature berbagai penelitian sebelumnya (literature review). Hasil penelitian menunjukkan bahwa secara keseluruhan minat belajar siswa dapat meningkat dengan penerapan media gambar. Hal ini ditunjukkan dengan meningkatnya hasil belajar siswa dengan presentasi statistik 81,3% yang pada sebelumnya dilakukan perlakuan hanya memperoleh 69,3%, hal ini menunjukkan telah terjadi peningkatan signifikan, membawa pengaruh yang positif terhadap pembelajaran IPA. Media Pembelajaran tersebut dapat membantu siswa dalam memahami konsep materi dibandingkan dengan menghafal materi, materi ajar ditampilkan dalam bentuk konkret yakni dengan melibatkan indra penglihatan manusia. Siswa juga menjadi lebih aktif dalam pembelajaran.
Sociedad, literatura y educación: propuestas para el desarrollo de una juventud resiliente
Authors: Carreira Zafra Cintia ,   Universitat Abat Oliba CEU
Published: February 2023

La presente obra ofrece una mirada actual y teórico-práctica a los retos educativos de nuestra sociedad subrayando la importancia del fomento de la resiliencia desde diferentes dimensiones del quehacer educativo, con un amplio abanico de métodos y actividades. La conjunción del enfoque multidisciplinar generado por el hecho de que los autores procedan de diferentes ámbitos de conocimiento, desde la filosofía de la educación, la pedagogía, la didáctica, la teoría de la literatura y la filología hasta la psicología de la educación, la empresa o la comunicación audiovisual constituye una de las principales aportaciones del libro. El volumen se divide en tres grandes ejes temáticos: el primero incluye textos orientados a promover pilares psico-educativos sólidos que ayudan a acompañar a los jóvenes en su camino de crecimiento personal. El segundo explora varias prácticas y manifestaciones culturales contemporáneas y la manera en que pueden revertir positivamente en nuestros jóvenes cuando, aparentemente, podrían convertirse en ejemplos negativos para ellos. El último eje expone la respuesta de la literatura como herramienta imprescindible para una mejor comprensión de la resiliencia, gracias a los ejemplos de vida que esta facilita a los lectores, los cuales, mediante el mecanismo mimético-catártico, pueden aprender de personajes que actúan como testimonios resilientes.
Fracture incidence of waveone gold and reciproc blue files when used in up to three clinical cases: a prospective study
Authors: Fontana Carlos Eduardo , Oliveira Anna Luise Silva , Pelegrine Rina Andréa , Kherlakian Daniel , Janini Ana Cristina Padilha , Rocha Daniel Guimarães Pedro , De Martin Alexandre Sigrist , Pinheiro Sérgio Luiz , Bueno Carlos Eduardo da Silveira
Published: February 2023

Objective: Reuse of endodontic files remains an open issue in clinical practice. This study was designed to evaluate the fracture strength of WaveOne Gold (Dentsply Maillefer, Ballaigues, Switzerland) and Reciproc Blue (VDW, Munich, Germany) files with successive reuse for root canal shaping in up to three molars. Material and Methods: Prospective clinical study carried out by five calibrated endodontists who treated 384 molars (1291 canals) with a curvature <45° over a 12-month period. A total of 128 instruments were used (64 Reciproc Blue and 64 WaveOne Gold). Each instrument was used to treat three posterior teeth. After each use, the instruments were observed under an operating microscope at 8× magnification. Data were tabulated and a chi-square test was applied. Significance was accepted at the 5% level.  Results: Two instruments (one from each group) separated, both on the third use and during instrumentation of a mandibular first molar. In other words, instrument separation occurred in 0.52% of teeth and 0.16% of treated root canals.  Conclusions: There was a low incidence of instrument fracture when reciprocating files were used for up to three endodontic treatments in molars.
Autonomous Driving Decision Algorithm for Complex Multi-vehicle Interactions: an Efficient Approach Based on Global Sorting and Local Gaming
Authors: Li Daofei , Zhang Jiajie , Liu guanming
Published: February 2023

For autonomous driving, it is important to develop safe and efficient decision algorithms to handle multi-vehicle interactions. Game theory is suitable to manage the interactive driving decision modelling, however, common approaches of multi-player game formulation is computationally complex for dynamic and intense interactions. To overcome this challenge, a global sorting-local gaming framework, namely GLOSO-LOGA, is proposed to solve the intersection interaction problem for autonomous driving, which can comprehensively consider the advantages of multi-vehicle collaboration and single-vehicle intelligence approaches. Further, an interaction disturbance function is used to quantify the impact of indirect interactions on ego vehicle. Then simulations with single and multiple conflict areas settings in a four-armed intersection are carried out. Simulations and human-in-the-loop simulator experiments show that the proposed algorithm can improve the interaction safety in intensively interactive driving scenarios even in complex and urgent interaction cases. The proposed framework may be potentially applied in handling autonomous vehicle's dynamic interactions with multiple road users.
Per la fortuna del Decameron nella letteratura di fine Ottocento: riscritture pascoliane edite e inedite
Authors: Galatà Francesco
Published: February 2023

Although Boccaccio’s name is rarely encountered in published works of Giovanni Pascoli (1855-1912), traces of a constant reading and reuse of the Decameron have emerged and continue to emerge from the poet’s manuscripts. The article outlines the history of the already known contacts between the two authors and adds a new document: the unknown verse drama ‘Messer Gentile’, inspired by the novella X 4. This drama, designed as a one-act play with a prologue and three scenes, has been left unfinished: only the prologue and the first scene are preserved, but it is enough to appreciate some dynamics that characterize the rewriting process. A dense network of references to the most ancient Italian poetic tradition emerges from the dramatic lines, and among the manuscripts one discovers an experimental rhythmic prose composed of hendecasyllables arranged in a line that the study reconnects to the reform of modern tragic theater envisaged by Pascoli.

Sebbene il nome di Boccaccio si incontri molto raramente nell'opera di Giovanni Pascoli (1855-1912), dai manoscritti del poeta sono emerse e continuano a emergere tracce di una lettura costante del Decameron. Il contributo ripercorre la storia dei contatti già noti tra i due autori e aggiunge un nuovo documento: l'inedito dramma in versi 'Messer Gentile' ispirato alla novella X 4. Il dramma, progettatto come atto unico con prologo e tre scene, rimase incompiuto: ci sono giunti soltanto il prologo e la prima scena, che sono sufficienti per apprezzare alcune delle dinamiche che caratterizzano la riscrittura. Dai versi emerge una fitta rete di riferimente alla tradizione poetica italiana delle origini e tra i manoscritti si ritrova un esperimento di prosa modulata sul ritmo continuato degli endecasillabi riconducibile all'idea di moderno teatro tragico di Pascoli.
المبادئ الفقهية للمشي يوم الأربعين من منظور الفقه الإمامي
Authors: خراساني محمد جواد , رستمي عليرضا , صالحي أمير
Published: February 2023

إحدي علامات المؤمن زيارة الإمام الحسين () في اليوم الأربعين. بدأت هذه الزيارة من أول الأربعين نفسه مع زيارة أحد صحابة الرسول الأكرم () أي جابر بن عبد الله الأنصاري، وقد اهتمّ بها الشيعة على مر العصور. إنّ ما هو أهم في هذه الزيارة المشي في طريق الأربعين. من وجهة نظر الفقه الإمامي، في إثبات شرعية المشي في زيارة الأربعين وفضيلته يستفاد من الأدلة الأربع في الفقه. إنّ المشي يوم الأربعين يعدّ مصداقاً بارزاً لتعظيم الشعائر الإلهية والمودّة إلي أهل بيت الرسول () والذي قد أمرنا به القرآن الكريم وهناك الكثير من الروايات التي تذهب إلي أنّ الزيارة مشيا علي الأقدام أفضل منه ركوباً. في سيرة المعصومين () كانت الزيارة مشياً علي الأقدام واضحة فهذا دليل علي أنّه كلّما كانت عبادة الإنسان لله بنحو أصعب وأشدّ كان الثواب أكثر، فالأجر على مقدار المشقّة لذلك فإن مسيرة الأربعين لها شرعية وفضيلة عالية، وآيات القرآن الكريم والروايات وسيرة أهل البيت () وأصحابهم دليلة على ذلك.
إعادة قراءة في رأي الإمامية في "تفويض التشريع" و "نسخ القرآن بالسنة"
Authors: پورروستايي جواد , مظاهري صفورا , سهرابي عاطفة
Published: February 2023

تفويض التشريع" في علم الكلام و "نسخ الكتاب بالسنة" في القضايا الفقهية، موضوعان مترابطان ويمكن اعتبارهما من مصاديق المبادئ الكلامية لأصول الفقه. إن قبول تفويض التشريع يؤدي إلى قبول جواز نسخ الكتاب بالسنة؛ كذلك إذا تم إنكار نسخ الكتاب بالسنة، يتم إنكار تفويض التشريع ضمناً؛ وإن لم تكن ملازمة ذاتية بين هذين الأمرين. البحث الحاضر يقوم بتحليل آراء أهم علماء الشيعة حيال هذين الموضوعين وتوصّل إلى هذه النتيجة بأن مع عدم الاهتمام لعلاقة علم الكلام بأصول الفقة، فقد جاءت أدلة مشابهة في رفض وقبول هذين الموضوعين بصورة منفصلة؛ لكن لم يأت شرح في تفاصيل علاقة الموضوعين مع بعضهما. كما خلص المؤلفون إلى أنه في معظم الحالات لم يتم استخدام الأسباب الشفهية لإثبات تفويض الشريعة لإثبات تحويل الكتاب إلى سنة. ومع أن أسباب قبول تفويض الشريعة، إذا كانت صحيحة، يمكن أن تكون سببا جيدا أو فريدا لإثبات نسخ الكتاب بالسنة.
خصائص الكمال الأخلاقي في الحكومة المهدوية
Authors: پوربابادي سهيلا , روحي أبو الفضل , سوداني ناصر
Published: February 2023

تري العقيدة الاسلامية ان مستقبل الانسان في وصوله الي درجة الكمال لا يتحقق الا من خلال الحكومة الاسلامية المهدوية. فالانسان في ظل تلك الحكومة المهدوية سيكتسب الكمالات الفرعية ومن خلالها سينال الكمالات الاصلية. تسعي هذه المقالة من خلال المنهج الوصفي التحليلي وبالاعتماد علي الأدلة النقلية والعقلية ان تبين سمات الكمال الاخلاقي والروحي في حكومة الامام القائم ()و تشير نتائج البحث الي ان الحكومة المهدوية هي المصير المثالي الذي يصل بالناس الي هدفها النهائي المتمثل إاحراز الكرامة والعزة...فالانسان في الحكومة المهدوية من خلال التزامه بالشرائع الاسلامية والربانية وعبادة الله تعالي وحده يصل الي اعلي مستويات الراحة النفسية والنشاط والرضي وبذلك تتحقّق حياته الطيبة وسيصبح خليفة الله في ارضه كما اراد الله تعالي.
أثر النظام السياسي في بناء دولة القانون
Authors: الحمراني رحيم
Published: February 2023

ان الدولة المعاصرة كيان قانوني سياسي يعبر عن ارادة اجتماعية، وليس امام هذه الدولة كي تحقق تلك الارادة الا ان تكون قانونية، وذلك من خلال وجود سلطة مؤسساتية مستقلة محتكرة لكل الوسائل المادية التي تمكنها من فرض هيبتها في اطار الدستور، الى جانب وجود الدستور ومبدأ الفصل بين السلطات والرقابة القضائية، واتقان السلطة لادارة التنوع المجتمعي ووجود تعددية حزبية تمكن من مشاركة سياسية حقيقة
نساء قرغيزستانيات مُتاجر بهن في كتاب مارينكا فرانولوفيتش "امرأتان قرغيزستانيتان"
Authors: حسن زينه عبد الحسين
Published: February 2023

تستند ورقة البحث إلى قصة حقيقية تدور حول امرأتين عانتا من الاتجار بالبشر. تلخص الورقة المناقشة حول العوامل والمخاطر المرتبطة بالاتجار بالبشر، وخاصة الاتجار بالنساء. يعتبر الاتجار بالنساء جريمة مروعة، ويجب وضع حد لمعاناة النساء بسببها. يتم تناول مثالين من الكتاب "امرأتان قيرغيزيتان"، حيث تعرضت النساء للعديد من المخاطر، مثل الضرب، التهديد، والاغتصاب. 
هدف الورقة هو مناقشة أنه إذا تم معالجة العوامل التي ساعدت في اتجار النساء منذ البداية، لما كان هناك اتجار بالنساء. هذه العوامل متعددة وتشمل: - الخداع بوعد وظائف، الظروف السياسية غير المستقرة، الممارسات الاجتماعية والثقافية التي تقلل من قيمة المرأة في المجتمع، أدوار الجنسين في المجتمع التي تُظهر تفضيل المجتمع للأولاد على البنات، والمفاهيم الخاطئة حول الأعراف الاجتماعية.  
لكن في الواقع، لا تُعتبر هذه العوامل محددة أو محظورة بدعم من المجتمع القيرغيزي؛ على العكس، يُعد المجتمع ذاته هو العامل الرئيسي الذي يشجع النساء على مغادرة بلادهن من أجل تحسين حياتهن. من جهة أخرى، لا يأخذ الشريك الذكري أي دور في دعم المرأة؛ وسيتم مناقشة هذا الموضوع وإثباته في الصفحات القادمة.
Analisis Peran Lembaga Keuangan (Pegadaian) Terhadap Pengembangan Perekonomian Masyarakat Umum (Usaha Umkm)
Authors: Adila Indria Sutrisno Feby , Perwira Ompusunggu Dicky , Hukom Alexandra
Published: February 2023

Pawnshops have recently become a permanent fixture in the lives of ordinary Indonesians. Jewelry, tools, and other property are pawned daily to temporarily add to the expenses of those unable to borrow from banks and other financial institutions. Moreover, some of these pawnshops have penetrated the provinces, so they have taken on a new role as development exponents. But despite its popularity, the study of pawnshops is not that important. Therefore, this paper tries to fill the gap by presenting several new facts related to the continuous existence of pawnshops in the financial system. This research was studied through a descriptive approach with data access from library research, so this research was studied qualitatively. It then discusses the role of pawnshops in the financial system. This is followed by an analysis of the pawnshop's performance with particular emphasis on sources and uses as well as the profitability and operational efficiency of the pawnshop. To find out whether the pawnshop is still able to increase its competitive advantage by increasing its size, tests are run on economies of scale. In conclusion, what all the analysis and results show means that pawnshops are also capable of being a good alternative source of credit for small offerings for MSMEs and the public.
Tribological parametric analysis of deformation zones in combined mandrelling of holes
Authors: Chikhacheva N.Yu. , Shchedrin A.V. , Zabavina A.A. , Nikiforov I.A.
Published: February 2023

Using the algorithmic procedures of "artificial technological intelligence", a comparative tribological parametric analysis of deformation zones was performed during the combined burnishing of holes in workpieces from non-grinding non-ferrous alloys with a tool with regular microgeometry of the acting surfaces under various technologies for the use of innovative metal-cladding lubricants that implement the fundamental scientific discovery "the effect of wearlessness during friction Garkunov-Kragelsky.
Effect of heat treatment on content of δ-ferrite and properties of martensitic-ferritic steel
Authors: Prokhorov A.P.
Published: February 2023

The results of a quantitative assessment of the content of δ-ferrite in martensitic-ferritic steel and its effect on properties under various heat treatment regimes are presented. It was found that with a high content of δ-ferrite, mechanical properties (tensile strength, toughness and hardness) significantly decrease after heat treatment (quenching + tempering). With a low content of δ-ferrite, it increases the hardness of steel. The content of δ-ferrite in 14Kh17N2 steel can be regulated by controlling the chromium and nickel content in the steel composition, as well as the quenching temperature.
Effect of molybdenum on structure and properties of surface layers of steel 12Kh18N9T
Authors: Bushueva E.G. , Pukhova E.A. , Drobyaz E.A. , Tyurin A.G.
Published: February 2023

The results of hardening the surface of chromium-nickel steel 12Kh18N9Т by the method of non-vacuum electron-beam processing are presented in this research paper. As a result, a molybdenum-containing layer with 2 mm thickness was formed. The creation of surface layers of this composition allow to increase microhardness by 2.25 times, wear resistance by 1.7 times in comparison with unhardened steel.
Analysis of capabilities for depositing of materials forming functional coatings using ultrasound
Authors: Levushkina N.V. , Nigmetzyanov R.I. , Nechay A.A. , Sukhov A.V. , Fatyukhin D.S.
Published: February 2023

Main effects arising from the use of ultrasonic vibrations at the stage of applying functional coatings are considered. Results of the use of ultrasound for various application technologies are analyzed.
Determination of optimal conditions for hardening by pulsed plasma flows of low-alloy structural steels with different carbon content
Authors: Kutukov A.K. , Danilina N.A. , Panin S.E. , Gaponova V.V.
Published: February 2023

Increasing the wear-resistance of materials is an urgent task of modern materials science, which is most economically and efficiently solved by modifying only the surface of products. Consequently, studies of changes in the microhardness of low-alloy structural steels with different carbon content after irradiation of samples with pulsed plasma flows have been carried out. The chosen processing method is considered the most perspective now. As a result, optimal hardening conditions were determined, in which the maximum microhardness of the surface layer was achieved, and the effect of alloying components on the calcination thickness was also established.
Modification of anode material VK8 by silicon for electric spark alloying of steel 35
Authors: Burkov A.A. , Konevtsov L.A. , Dvornik M.I. , Vlasova N.M.
Published: February 2023

Metal-ceramic coatings on steel 35 were obtained by the method of electric spark processing with different duration of control pulses, using a new electrode material WC—7.5 % Co—7.5 % Si for applying electric spark coatings on steel 35. It is shown that WC particles were deposited into the coating as a result of solid-phase transfer, which intensified with increasing discharge duration. The addition of silicon to WC—Co electrode materials can significantly reduce the coefficient of friction of the formed coatings. In general, the use of WC—Co—Si coatings can increase the heat resistance of steel up to 5 times, reduce the coefficient of friction of steel 35 to 47 %, and increase the wear resistance of its surface from 3 to 10 times.