bluuebunny/crossref_metadata_2025_split huggingface dataset:
Myocardial SPECT Perfusion Defects in Angina Patients, Without Significant Epicardial Coronary Artery Disease. Can Pathological SPECT Affect Long-Term Prognosis?
Authors: LAMPAS EVANGELOS , Syrmali Kiriaki , Nikitas Georgios , Papadakis Emmanouil C. , Patsilinakos Sotirios P. 
Published: October 2021

Abstract
Purpose: Patients with angina and a positive SPECT for reversible ischemia, with no or non-obstructive CAD on ICA represent a frequent clinical problem and predicting prognosis is challenging. Methods: A retrospective single center study focused on patients that underwent elective-ICA with angina and a positive SECT with no or non-obstructive CAD in the CathLab, during a seven-year period. Assessment of patients’ cardiovascular morbidity, mortality, and MACE during a follow-up period of at least three years after ICA, with the assist of a telephone questionnaire.Results: Data of all patients that underwent ICA for a period of 7 years (from January 1,2011 until December 31, 2017) in our hospital were analyzed. The patients that fulfilled the prespecified criteria were 569. At the telephone survey, 285(50.1%) were successfully contacted and agreed to participate. The mean age was 67.6 (SD8.8) years (35.4%female) and the mean follow-up time was 5.53years (SD1.85). Mortality rate was 1.7% (4 patients/non-cardiac causes) and 1,7% rate of revascularization. 31(10,9%) were hospitalized for cardiac reasons and 10,9% patients reported symptoms of HF (no patients with NYHA-Class above II). 21 had arrhythmic events and only two mild anginal symptoms. Noteworthy finding was, the mortality rate in the not-contacted group (12 out of 284, 4,2%), derived by public security records, did not differ significantly from the contacted-group. Conclusions: Patients with angina, a positive SPECT for reversible ischemia and no or non-obstructive CAD in ICA have very good long-term cardiovascular prognosis for at least 5 years.
A Facile Solution on Secret Key generation and Secure Distribution
Authors: Cai Lifeng 
Published: October 2021

Abstract
We designed systems to generate and securely distribute unlimited number of secret keys from a master key with key strength of the system can be equal to the bit-count of the master key. We first set 3 prerequisites for system security from basic principles and design scheme accordingly, use master key as the solely system privacy, combine the master key and arbitrarily unrepeated timestamps to generate medium keys, generate keys therefrom using one-way data conversion algorithm (OWDCA), and distribute keys by corresponding timestamps between legitimate users exclusively sharing the master key. We then defined 4 criterions for qualified OWDCA (q-OWDCA) and proved that systems based on the above scheme using q-OWDCA would fulfill these prerequisites. We designed some q-OWDCAs and constructed typical cryptosystems, demonstrating a universal strategy to realize information security in large complex systems using a single master key. Our work may solve the fundamental problem in symmetric cryptography.
Sociocentric SNA on Fuzzy Graph Social Network Model
Authors: Rani Poonam , Tayal Devendra K. , Bhatia M.P.S. 
Published: October 2021

Abstract
The paper presents a scalable and generalized approach to social network analysis using fuzzy graph theory. In this, we propose an intelligent sociocentric approach that calculates the degree of potential relationship of a social network of finite size, by proposing a fuzzy graph social network model. It takes into account social entity functional and relational attributes simultaneously. In this, the degree of potential relationship of a social network is computed by using two steps. In the first step, the fuzzy pairwise relationship between all social entities is computed using the proposed fuzzy node activeness index parameter with their online and offline communication relationship parameters. In the second step, all fuzzy pairwise relationships that are calculated in the first step are further employed for the calculation of the degree of potential relationship of a social network using an astute function utilizing both weighted arithmetic and geometric means. Here two weights - betweenness and closeness centrality of an entity are assigned to the social entities. The paper performs the experimental work on a small size WhatsApp social network of undergraduate students in the university. The proposed degree of potential relationship can further be used as a global parameter to compare different social networks by incorporating both the functional as well as the relational attributes of social entities.
Understanding Rainfall Prediction Skill Over the Sahel in NMME Seasonal Forecast
Authors: Martín-Gómez Verónica , Mohino Elsa , Fonseca Belén Rodriguez - , Gomez Emilia Sanchez - 
Published: October 2021

Abstract
Sahelian rainfall presents large interannual variability which is partly controlled by the sea surface temperature anomalies (SSTa) over the eastern Mediterranean, equatorial Pacific and Atlantic oceans, making seasonal prediction of rainfall changes in Sahel potentially possible. However, it is not clear whether seasonal forecast models present skill to predict the Sahelian rainfall anomalies. Here, we consider the set of models from the North American Multi-model ensemble (NMME) and analyze their skill in predicting the Sahelian precipitation and address the sources of this skill.Results show that though the skill in predicting the Sahelian rainfall is generally low, it and can be mostly explained by a combination of how well models predict the SSTa in the Mediterranean and in the equatorial Pacific regions, and how well they simulate the teleconnections of these SSTa with Sahelian rainfall. Our results suggest that Sahelian rainfall skill is improved for those models in which the Pacific SST - Sahel rainfall teleconnection is correctly simulated. On the other hand, models present a good ability to reproduce the sign of the Mediterranean SSTa – Sahel teleconnection, albeit with underestimated amplitude due to an underestimation of the variance of the SSTa over this oceanic region. However, they fail to correctly predict the SSTa over this basin, which is the main reason for the poor Sahel rainfall skill in models. Therefore, results suggest models need to improve their ability to reproduce the variability of the SSTa over the Mediterranean as well as the teleconnections of Sahelian rainfall with Pacific and Mediterranean SSTa.
Optimization of Tool Geometric Parameters For a Small Fluteless Forming Tap (FFT)
Authors: Wu Ming-Chang , Jian Wei-Rong , Hsu Ling-Sheng , Tsao chung-chen 
Published: October 2021

Abstract
A small blind internal thread (SBIT) is used to firmly fasten some functional components to the cover of 3C electronic products. The small internal thread is made in a blind hole using a fluteless forming tap (FFT) that does not produce chips. However, the four geometric parameters (tool width (W), tooth root diameter (D2), front-end diameter (Df) and tooth angle (θ)) for the FFT affect the thread filling rate (f) and the minimum torque (T) for the tapping process. This study reports a Box-Behnken design (BBD) using DEFORM-3D (finite element model) and MINITAB (regression analysis) software to tap 7075-T6 aluminum alloy using a small FFT to achieve a repeatable thread filling rate and minimum torque. The experimental results show that the BBD accurately predicts and simulate the thread filling rate for tapping 7075-T6 aluminum alloy. The modelling software and the experimental design for this study can be used to optimize the design of tools that are used in industrial production.
An experimental study on the determination of dispersion coefficient in layered soils
Authors: Mahdipanah Hamed , Tashakori Askari , Emamgholizadeh Samad , Maroufpoor Eisa 
Published: October 2021

Abstract
Dispersivity is a measurable parameter in soil porous media that is used for studying the transport of contaminants to groundwater. The value of this parameter depends on various factors, including the kind of porous media (homogeneous or heterogeneous), flow velocity, initial contaminant concentration, travel distance, and sampling method. A physical model with dimensions of 0.10 m in width, 0.80 m in height, and 1.10 m in length was constructed to investigate the effects of these parameters on the dispersivity value. The stratified soil used consisted of three 20-cm-thick layers containing fine-grained, medium-grained, and coarse-grained soil. Sodium chloride solutions with electrical conductivity values of 10, 14, and 19 dS/m were used as the contaminants. Flow was forced through the layered heterogeneous soils at three discharge velocities of 17.58, 22.02, and 26.18 × 10−5 m/s. The point and mixed sampling methods were used. The results indicated that the soil dispersivity values in layered heterogeneous soils and homogeneous soil were influenced by contaminant concentration, flow velocity, and travel distance. Moreover, the dispersivity values obtained by point sampling were lower than those obtained using the mixed sampling method, and the mean dispersivity value in the layered heterogeneous soils was lower than that of the homogeneous soil.
Evaluating regional agricultural water resources system resilience and analyzing driving factors in the Hongxinglong Administration
Authors: Zhao Dan , Liu Dong , Wang Qiumei , Li Qiuyuan , Liang Xu 
Published: October 2021

Abstract
A Projection Pursuit Classification (PPC) model optimized by the Cat Swarm Optimization algorithm (CSO-PPC) was proposed to evaluate system resilience in the Hongxinglong Administration of Heilongjiang Province, China. The driving forces behind resilience were analyzed using Principal Component Analysis (PCA). CSO-PPC was used to evaluate resilience for the 12 farms in the Hongxinglong Administration, and PCA was applied to select the key factors driving their resilience. Results showed that the key factors were per capita water, unit area grain yield, application of fertilizer per unit cultivated area and the proportion of cultivated land, which were closely related to human production and planting area. Overall water resources system resilience had improved by 2011 compared to 2005. Specifically, water resources system resilience grades for the 12 farms were divided into five levels from inferior to superior, i.e. I to V. After six years of development, the resilience of eight farms had improved. Farm Youyi and Farm 853 were upgraded from inferior level II to the best level V. However, according to the data, four farms still had low resilience that had not improved in recent years. Further results showed that the driving forces decreased from 1998 to 2003 and increased from 2003 to 2011.
Reliability-based optimization of water distribution networks
Authors: Palod Nikita , Prasad Vishnu , Khare Ruchi 
Published: October 2021

Abstract
The water distribution system serves as a basic necessity for society. Due to its large size and involvement of various components, it is one of the most expensive civil infrastructures and thus demands optimization. Much work has been done to reduce the distribution system cost. However, with only one objective, the obtained solutions may not be practical to implement. Thus, improving cost along with the efficiency of the network is the demand of the hour. The present work introduces a unique parameter-less methodology for generating Pareto fronts without involving the concept of non-dominance. The methodology incorporates the Jaya optimization model for a bi-objective problem, one being the reduction in network cost and the other improving the reliability index of the network. The efficiency of the proposed work is analyzed for three different benchmark problems. The Jaya technique is found to be very efficient and fast when compared with the other evolutionary technique applied for the same networks. The parameter-less nature of the Jaya technique smooths the process to a very large extent as no synchronization of algorithm parameters is required.
Hydrothermal synthesis of magnetic nano-CoFe2O4 catalyst and its enhanced degradation of amoxicillin by activated permonosulfate
Authors: Li Xiaoyan , Wang Hongwei , Zhang Guozhen , Zhou Tianhong , Wu Fuping 
Published: October 2021

Abstract
Advanced oxidation process (AOP) has attracted widespread attention because it can effectively remove antibiotics in water, but its practical engineering application is limited by the problems of the low efficiency and difficult recovery of the catalyst. In the study, nano-spinel CoFe2O4 was prepared by hydrothermal method and served as the peroxymonosulfate (PMS) catalyst to degrade antibiotic amoxicillin (AMX). The reaction parameters such as CoFe2O4 dosage, AMX concentration, and initial pH value were also optimized. The reaction mechanism was proposed through free radical capture experiment and possible degradation pathway analysis. In addition, the magnetic recovery performance and stability of the catalyst were evaluated. Results showed that 85.5% of AMX could be removed within 90 min at optimal conditions. Sulfate radicals and hydroxyl radicals were the active species for AMX degradation. Moreover, the catalyst showed excellent magnetism and stability in the cycle experiment, which has great potential in the AOP treatment of antibiotic polluted wastewater.
The Problem of Ensuring Representative Samples when Modeling the Market Value in the Regional Real Estate Market
Authors: Berdnikova V. N. 
Published: October 2021

The article describes the problem of the lack of a universal adequate method for achieving the representativeness of a sample of real estate objects when modeling their market value.The purpose of the work is to develop a methodology for creating a representative sample of real estate objects. This method can be used by specialists when working with inactive real estate markets in small cities and settlements. On the example of the market of land plots for individual housing in several cities of the Krasnodar krai, the analysis of the features of ensuring representativeness is carried out. There are opportunities and limitations of various tools for forming a representative sample.Materials and methods. When preparing the paper, the author studied the experience of forming representative samples accumulated by Russian and foreign scientists, considered in detail theoretical and practical approaches to analyzing the quality of the general set of market real estate objects. The methodology proposed in the article was tested on the example of the real estate market of the cities of Krasnodar, Goryachy Klyuch, Armavir. Тhe author used cartographic data, information from specialized portals of the real estate market and from the unified state register of rights. To achieve the objective, theoretical methods (comparative analysis, synthesis, generalization, analogy) and modelling were used.The main result of the paper is a reasonable method of radial circles, which allows you to select high-quality objects in a sample. Such land plots according to a certain significant price-forming factor in the city under consideration structurally correspond to the plots registered in the unified state real estate register. It is important to establish the conditions under which the sample becomes representative of the pricing factor associated with the location of the object. Тhe analytical material, stages and methods of selecting units in the sample presented in the article are of interest for the real estate researchers, analysts and experts, practitioners of state budgetary institutions engaged in state cadastral valuation.Conclusion. The method of radial circles can be further developed and used for other price-forming factors when modeling the market value of real estate.
Razón y experiencia: contribuciones para una ampliación de la diversidad epistemológica
Authors: Ramírez Fernando Lautaro 
Published: October 2021

The philosophical transformation carried out Xavier Zubiri, especially in his mature work: Sentient intelligence allows to rethink the bases of rationality in structural unity with the senses, allowing a plurality of ways of accessing reality on its foundation (experience), and surpass, in that way, the monological rationality promoted by positivism and pragmatism. To this end, we move through the different landmarks of Zubiri’s work: first, the primordial apprehension of reality from its multiple sentient openings; then, we stop at the constitution of meaning by logos emphasizing how culture prioritize one type of sense (view, hear, touch, etc.) over the rest, forging a type of openness to reality and determining a horizon of meaning for it; later, we inquire into how reason accesses the foundation of the real, this allows us to show how the different rationalities settle their options for meaning. From here we contrast with religious rationality founded on historical-scientific criterion, and a strictly religious one, which, ultimately, allow us to finish systematizing and giving a unity of meaning to the previews proposals that were made. Finally, all this enables us to explore the consequences for a sociology of knowledge (Epistemologies of the South), and to think about the conditions of intercultural dialogue, and, subsequently, the scenarios of and interlogical construction.
Surrogation Fundamentals: Measurement and Cognition
Authors: Black Paul W. , Meservy Thomas O. , Tayler William B. , Williams Jeffrey O. 
Published: October 2021

ABSTRACT
Measurement is a fundamental part of accounting. A primary purpose of measurement is to provide more concrete representations of abstract strategic objectives. A potential consequence of using measures to proxy for less-tangible strategic constructs is the tendency for managers to fall prey to surrogation, losing sight of strategic constructs and behaving as though measures are the constructs of interest. We show that surrogation is a nonconscious process. We also extend understanding of the conditions necessary for surrogation to occur by showing that mere awareness of measurement (even absent compensation) is sufficient to induce surrogation. These findings have implications for any setting where measures are used to represent a more abstract construct. While using measures is clearly very beneficial, we highlight the importance of understanding when and why surrogation can occur and developing strategies to reduce its effects.
Data Availability: Data are available upon request.
Hubungan Pengawasan dengan Disiplin Kerja Pegawai Dinas Pariwisata dan Kebudayaan Kota Padang
Authors: Berliana Hikmah Putri , Nelitawati Nelitawati , Rifma Rifma , Irsyad Irsyad 
Published: October 2021

Abstract
This study aims to see how the discipline of work, the supervision of the leadership and the relationship of supervision with the work discipline in Department of the city of Padang. The population of research is all employees in Department of the city of Padang amounted to 54 people and the sample is 33 people that is determined based on techniques proportionate stratified random sampling. The instrument used is the questionnaire that contains about discipline and supervision. The result is a significant relationship between the supervisory with discipline of work employees in the Deparment of the city of Padang.
Development of Integrated Distribution and Inventory System Simulation Model Using Mobile Depot
Authors: Djanggu Noveicalistus H 
Published: October 2021

Distribution activities are carried out to move an item from one point to another. Product distribution activities are conducted from the production area to the distribution or warehouse area, then from the warehouse to the retailer or consumer. Distribution activities can be established using various modes of land, river, ocean, and air transportation. Land transportation is greatly influenced by road conditions. River and sea transportation excels in carrying capacity which leads to the reduction of distribution costs. The disadvantages of water transportation are longer moving duration and dependence on weather. A warehouse is a typical facility used to accommodate inventory. Inventory system will generate holding costs. River transportation with a large carrying capacity can be used as a distribution medium and temporary warehouse. The land route in the West Kalimantan region is suitable for trucks with a moderate carrying capacity. River routes in West Kalimantan can reach several strategic areas, and river conditions have appropriate specifications for transportation mode with large capacities. The distribution and inventory system integration model using a mobile depot has been proposed in previous studies. Therefore, this research focuses on developing a simulation model for the aforementioned system. The results of this study are expected to provide information about the optimal value of the model configuration and strategy.
CONVERGENCES VIA ẛـ PREـ gـ OPEN SET
Authors: Jassam Ahmed A. , Esmaeel R. B. 
Published: October 2021

The main aim of this paper is to use the notion which was introduced in [1], to offered new classes of separation axioms in ideal spaces. So, we offered new type of notions of convergence in ideal spaces via the set. Relations among several types of separation axioms that offered were explained.
PPT_KESEHATAN ANAK DAN BALITA
Authors: Qufranul Munaya Nur 
Published: October 2021

Masalah kesehatan anak adalah permasalahan global yang terjadi hingga di Indonesia. Tidak hanya menimpa kota-kota besar, namun juga sampai ke pelosok Indonesia. Jumlah kematian bayi dari tahun 2016 - 2020 memiliki nilai yang fluktuatif. Nilai tertinggi terjadi pada tahun 2018 sebesar 138 bayi yang meninggal, di Tahun 2020 jumlah kematian bayi mencapai 115 jiwa nilai ini mengalami peningkatan dari tahun sebelumnya yang hanya mencapai 108 jiwa. (Profil Kesehatan RI,2020)
PERTUMBUHAN DAN CARA KERJA DPR-RI PASCA REFORMASI
Authors: Yamin Saefullah , Nurwahyuni Nurwahyuni 
Published: October 2021

Post reformation of the role and function of the House of Representatives of Republik Indonesaian (DPR RI) is returned to its corridor as a legislative institution that runs the legislative function (making laws/constitution), besides running budgeting fungction together with the president, and the oversight function of the implementation of the law and the budget in the administration of government carried out by the executive. Related to the lack of productivity of The House of Representatives (DPR) to carry out the legislative function, The performance evaluation of this legislation is not only seen in terms of the quantity of products made but its quality is also an important factor in assessing legislation products. The identification problems in this research are: What is the Position of the House of Representatives in the 1945 Constitution of the State of the Republic of Indonesia, and What is the Process of the Growth of the Post-Reformation House of Representatives. In this research the library research method will be used or library research. Regarding this kind of research it is usually also called "Legal Research" or "Legal Research Instruction”. The position of The House of Representatives (DPR) after the amendment of the 1945 Constitution four times turned out to further strengthen its existence as the sole legislator. Although in the 1945 Constitution the amendment results also gave the President authority, but the authority he owned was not as big as The House of Representatives (DPR). And the process of the growth of the House of Representatives (DPR) Post-Reformation has strengthened the authority of the legislative instituion, in this case the House of Representatives of Republik Indonesian (DPR-RI) to maximize its role and function as a check and balances institution, after being strengthened, the House of Representatives (DPR) becomes tyrannical over the executive even over the state, because of its power and authority so great.