bluuebunny/crossref_metadata_2025 huggingface dataset:
USING THE BEHAVIOR ANTAGONISM AND THE BIMATRIX GAME THEORY IN THE IT PROJECT MANAGEMENT
Authors: Chernov S. K. , Chernova Lb. S. , Chernova Ld. S. , Kunanets N. E. , Titov S. D. , Trushliakov E. I.
Published: July 2023

Context. The article proposes a method of analyzing the proposals of team members in order to avoid conflict situations at the stage of team formation.

Objective. The object of the study is the method of analyzing the proposals of team members while solving project tasks.

The purpose of the work is to analyze the developed method of analysis of proposals of team members to avoid or resolve conflict situations at the stage of team activation

Method. The developed method is based on the theory of matrix games. Conflicts between individual team members mainly arise at the stage of team formation. For the project manager, it is important to identify the conflict situation in time and find a way out of it to satisfy both team members and without harming the teamwork as a whole. A team created to implement an IT project is often faced with a situation where two of its members have different visions of approaches to creating the final product. At the same time, each of them has experience in the development of similar software products or services by different teams. To effectively solve this situation, we suggest using approaches typical of bimatrix games, when each of these team members is considered as a player. This takes into account the fact that the bimatrix theory of games is based on a conflict between two players whose interests are opposite – an antagonistic zero-sum game is precisely the basis of the developed approach.

Results. The proposed method of analysis of proposals of team members contributes to the avoidance or resolution of conflict situations at the stage of their closer interaction. For efficient solution of the said situation, we propose to use approaches being typical for bimatrix games when each of these team members is treated as a player. At the same time, account is taken of the fact that the bimatrix game theory is based on a conflict of two players whose interests are opposite – an antagonistic game with a zero sum being that very element to constitute the basis of the approach developed.

Conclusions. The given calculation of the model example shows that the use of the proposed method allows the project manager to give a reasonable preference to another team member, since the expected average profit of this player is greater than that of the first player. In this case, the manager has an opportunity to simulate situations for the players (for the team) and promptly respond to probable deviations of their behavioral strategies from the optimal ones, establish healthy relationships between team members and choose the best proposals for solving project tasks.
THE CONCEPT OF INFORMATION-ENTROPY SPACE FOR SYSTEM OBJECTS MODELS BUILDING USED IN SUSTAINABLE DEVELOPMENT TASKS
Authors: Kozulia T. V.
Published: July 2023

Context. Solving tasks of interdisciplinary research deepening during sustainable development problems solutions search for real social-ecological-economical objects based on systemological modelling and introducing information-entropy space of such objects state and functionality determining for making managerial decisions in uncertainty conditions.

Objective. Modelling current situation of researched social-ecological-economical object as the cooperative connection «studied system-environment» based on systemological model, which determines object study goal conditions due to discovery of internal and external factors interaction inside information-entropy space of object functioning representation.

Method. The paper presents the logical-experimental research results of complex social-ecological-economical objects state estimation, their development in stochastic environment conditions from the point of view of sustainable development requirements match based on proposed approach. This approach is the systemological basis of studied object entropy model creation and algorithmization by ecological functional of quality of the complex system objects goal state. The quality functional is the interrelation of «object systems-environment» state entropy functions and their interaction processes, which are gotten through monitoring data statistical analyses of objects that belong to technogenic (economical), social and natural systems.

Results. The usage of systemology basis complex union for studied object structure identification is suggested for the first time, along with identification of theoretical knowledge for informational entropy for any object system element description and entropic description of states and process. The relative accordance functional is introduced for final evaluation of the studied object equilibrium. It allows to estimate the presence of system and processes unstable points on the basis of nested system structure. It is important for decision making with synergistically positive feedbacks prediction.

Conclusions. The systems and process states entropic estimation complex approach is determined. The systemological model «object-environment» is the basis for determining conditions of studied object sustainable development due to usage of found spontaneous and natural synergistically feedbacks. The universal research base for complex systems study was received for their state and functionality estimation due to process synergy and «object-environment» connections that are based on complex usage of systemological modelling and input information entropy estimation.
Mixed Marriages of Poles in England and Wales, 2007–2020: A Preliminary Sociological Analysis
Authors: Kozak Jarosław , Fel Stanisław
Published: July 2023

The aim of the article is to present the scale and characteristics of the phenomenon of church marriages by Poles who migrated to England and Wales. The phenomenon of heterogamous relationships has grown over the last several decades due to factors such as the expansion of the community of European Union member states, globalization processes, and the resulting diversity of the population of migrants. The article is focused mainly on religious mixed marriages. The empirical material consisted of data from the records of the largest organization of the Polish community in Britain. The authors analysed the data of 25,530 marriages of Poles living in England and Wales, registered between 2007 and 2020, including 2,922 mixed religions marriages.
Spiritual Theology: The Contribution of Edith Stein
Authors: Zyzak Wojciech
Published: July 2023

The author of the article studies the spirituality of Edith Stein. He presents Edith Stein’s contribution to the methodology of spiritual theology, her anthropological and theological vision, her evolution of the religious experience, the life of prayer and call to mysticism. Edith Stein carried out research which today would be regarded as being interdisciplinary. Her reflections have a huge influence on the methodology of the theology of spirituality. The spirituality of the Cross which Stein writes about in compliance with the classic masters, nowadays may be an adjustment to the incarnational spirituality, in her overly optimistic view on the usage of creatures and taking for granted the spiritual value of suffering.
Investigation on the Binding properties of a Coumarin Derivative to Insulin by Spectroscopic and Computational Approaches
Authors: GÖKOĞLU Elmas , AKLAR Buse , TASKIN TOK Tugba
Published: July 2023

The binding properties of insulin hormone to the potential antidiabetic coumarin derivative umbelliferone (7hydroxycoumarin, 7HC) was investigated by absorption, fluorescence quenching and molecular docking methods. The negative signs of thermodynamic parameters (H and S) indicated that hydrogen bonds and van der Waals forces were dominant in the binding mode. The effect of common metal ions was investigated on binding parameters. According to the Förster’s theory; binding distance, r was obtained as 4.17 nm. The spectral data further supported by molecular docking calculations which show hydrogen bonds between 7HC and insulin.
A Study on Factors Affecting the Export Promotion Strategies and Distribution Channel Design Strategies for the Korean Cosmetics and Toiletries in China
Authors:   Korea Association for International Commerce and Information, Park Seung-Lak , Jung Seok-Mo
Published: July 2023

The Chinese cosmetics market is showing rapid growth. This study analyzed causal relationship between Korean cosmetics exports and China’s macroeconomic facilitation factors. After analyzing Chinese cosmetics market and challenges for Korean cosmetics companies, this paper suggests an effective distribution channel selection and management strategies for Korean cosmetics companies. Indirect distribution, optimum route plan for small and medium-sized cities from metropolises, utilization of electronic commerce, differentiation between premium brands and diffusion brands and strategic quanxi orientation shall be required for most of the Korean cosmetics companies.
The limitations of this study are as follows: analysis of export promotion factors of Korean cosmetics export in Chinese market are limited to a few variables and that this paper does not cover Chinese regional market segment’s characteristics. However, this paper has significant implications for understanding on the distribution channel strategies for Korean cosmetics export in China and suggests some strategic solutions.
A Study on Information Value of Analyst Report Text Based on the Analysts’ Herding Behavior Under Globalized Financial Markets
Authors:   Korea Association for International Commerce and Information, Cho Su-Ji
Published: July 2023

Recently, the investment information is spreading in near real-time due to the global integration of the international financial market. At this point, it is essential to resolve the information asymmetry in the capital market to vitalize domestic and foreign investment. Analysts improve market efficiency, by performing information intermediary role between the capital market and investors. However, the herding behavior among analysts in the market can weaken the information quality and lead to inefficiency in the financial market. In this study, the relationship between analyst herding behavior and the text of the report is analyzed. In addition, the effect of the text of the report body on the information power according to the analyst's herding behavior was verified. To this end, the positive and negative emotions shown in the body of the analyst report were extracted as words of up to 2-gram units and merged with the list of positive and negative words of Loughran and McDonald(2011), a sentiment dictionary widely used in the financial field. As a result of the analysis, when an analyst presents a 'bold' opinion that deviates from the consensus, the sentiment of the report body is more extreme than that of an ‘herd’ opinion. In addition, it was confirmed that positive emotion weakens the report information power according to the analyst's herding behavior. This study is expected to alleviate information asymmetry between investors and the financial market. Furthermore, the text mining methodology used in this study can be readily applied to any other kind of text, including News, Social Network Services, or IR reports.
Foreign Direct Investment Decisions of Multinational Corporations: Focusing on Financial Constraints
Authors:   Korea Association for International Commerce and Information, Yeo Hee-jung
Published: July 2023

This paper analyzed the financial factors affecting foreign direct investment. The 2018 and 2020 financial statements and subsidiary data were collected from 39 online companies in Korea, China, and the United States. We conducted a generalized linear model using the FDI level as dependent variable and tax haven FDI, the previous year’s debt level, previous year’s free cash flow, growth rate, previous year’s capital expenditure for independent variables.
In order to control the endogeneity between foreign investment and debt, the relationship between the previous year's data and foreign investment was analyzed. As a result of the study, it was found that the previous year's debt level, the previous year's growth, the the previous year's sales growth rate, and the previous year's capital expenditure were related to the foreign investment of online companies. The analysis found that debt and free cash flow have substitutability. Finally, when firms increase their foreign investment, they reduce their domestic capital expenditure. This paper contributes to providing a comprehensive insight into how capital-constrained companies allocate their investment resources.
Dyplomacja bez jutra. Stosunki Warszawa–Waszyngton w świetle Dariusza Jana Szembeka 1937–1939
Authors:   Szkoła Wyższa Psychologii Społecznej w Warszawie, Grzeloński Bogdan
Published: July 2023

The author of this article has analyzed the diaries of Jan Szembek, Polands Deputy Foreign Minister and the 1937–1939 reports from Warsaws of the U.S Ambassador to Poland, A.J.Drexel-Biddle. Basing on this material, the author concludes that the Polish–U.S. relations in that period were rather shallow, and were mostly restricted to Warsaws informing Washington about the growing military threat posed by nazi Germany. This state of things stemmed from the fact that, consistent with principle of isolationism, Franklin D.Roosevelt and the State Department were not ready, prior to 1939, to pledge any support for Europe, and for East-Central Europe in particular.
Notariusz jako wspólnik spółki z ograniczoną odpowiedzialnością
Authors:   Uniwersytet im. Adama Mickiewicza w Poznaniu, Sokołowska Dorota
Published: July 2023

The article is an attempt to answer the question concerning the legal issue of notaries taking up partnership in a limited liability companies in the light of Art. 19 of the Act of Law on Notarial Services of 14 February 1991? The undertaken analysis considers also regulations of the Commercial Companies Code. Conclusions resulting from the presented analysis are clear and unambiguous, asides of legal side of the problem, they also present it in the light of moral issues.
Prasa litewska o traktacie polsko-litewskim w przededniu jego podpisania
Authors:   Uniwersytet Michała Römera w Wilnie, Jakubauskas Adas
Published: July 2023

On 26 April 1994, the Lithuanian and Polish presidents signed in Vilnius the Treaty between the Republic of Lithuania and the Republic of Poland on friendly relations and good neighbourly cooperation. The Lithuanian press devoted much attention to the progress of negotiations in drafting this document and to its ratification by the Lithuanian Seimas in October 1994. During 1993–1994, the Lithuanian newspapers Lietuvos rytas, Respublika, Lietuvos aidas, Tiesa, Kurier Wileński, also several smaller newspapers, such as Voruta, Gimtasis kraštas, Atgimimas, SSI, Amžius, published the articles devoted to a discussion of the Lithuanian-Polish relations. This publication aims at conducting an analysis of the Lithuanian press and reviewing the articles devoted to the drafting, signature and ratification of the Treaty between the Republic of Lithuania and the Republic of Poland on friendly relations and good neighbourly cooperation, as well as to the political situation in Lithuania at the time of the drafting and signature of the mentioned agreement.
Pełzająca dewolucja. Problem uznania statusu prawnego mniejszości kornwalijskiej w Wielkiej Brytanii na początku XXI w.
Authors:   Uniwersytet Szczeciński, Toszek Bartłomiej H.
Published: July 2023

The article refers to Cornish idea of ‘crawling devolution’ based on recognizing Cornish minority under Framework Convention of national minorities protection and gradual achieving political autonomy level corresponding with modern position of Scotland, Wales or Northern Ireland in the UK political system. Author reveals façade character of formal arguments contain in the first and second DCLG reports for the Council of Europe General Secretary against implementing protodevolutionary ideas in Cornwall and presents real objections of present UK Government of realizing devolution reform (as a post-Labour heritage) in any part of England. The article presents Cornish people hopes and misgivings précised in local government, political parties (individual and common) and NGO’s selected documents and papers with authors comment in conclusion.
System repartycji w Polsce
Authors: Stasiak-Apelska Anna
Published: July 2023

The paper presents the results of the analysis of issues concerning the distribution in Poland. Distribution, in the context of the copyright law, is the compensation for the reproduction of works used with permit by private individuals for the personal purpose. Depending on the form of the exploitation of work or the subject of right (authors, performers, publishers or producers of phonograms and video recording), the fee should be paid. Fees for the use of protected works are collected from users based on the license agreements. Collective societies involved in the collect and division of the fees for the use of works within the permitted personal use. Article 23 of copyright law established the principle for unpaid permitted private use. There is no claim for payment of remuneration to the collective society or to users, if the works are copied within its own personal use. Exploitation of the works on the statutory license for private use is permitted, therefore, in connection with eg. common interests. Moreover, the relationships established through the internet are not excluded. Specificity is the fact that nowadays the reprographic fee of media is borne by entities that are themselves do not use of the works and do not encroach on the symptoms of copyright as an exclusive right. Holders of reprographic equipment, who are already established in the field of reproduction of works for personal use by third parties are obliged to pay, through the organization of collective management of copyright and related rights, duties amounting to 3% of the proceeds of this account on behalf of authors and publishers, unless the reproduction is carried out under an agreement with an eligible (eg. the author or publisher). Reprographic fees, so-called copyright levies or fees, which are counted towards to the blank media and copying machines are paid by all customers. Fees are paid by producers and importers of copying devices and blank media. In the field of reprographic fees, copyright is obsolete and should be complemented with modern audiovisual equipment, including tablets, smartphones etc.
Creative Commons (CC)
Authors:   Szkoła Wyższa Psychologii Społecznej w Warszawie, Delert Elżbieta
Published: July 2023

Creative Commons is a non-profit organisation, which was established in 2001 in the United States of America. It was founded of the initiative of the people involved in work for the protection and promotion of common cultural goods. Polish branch of the organisation has been operating since 2005 and its partners are Centre for Digital Design: Poland and the Interdisciplinary Centre for Mathematical and Computational Modelling at the University of Warsaw. The article presents the development of Creative Commons licence their history specifics and use both in USA and international environment. Last part of the text is focused on presentation and analysis of the situation of Creative Commons licences in Polish Law.
Physicochemical characterization of fruits, biometry and dormancy of marula seeds
Authors: Santos João Rafael Prudêncio dos , Maia Victor Martins , David Andréia Marcia Santos de Souza , Oliveira Fernanda Soares , Souza Mirna Ariane Taveira de Sousa e , Silva Bruno Soares da
Published: July 2023

ABSTRACT: This study recorded the physicochemical properties of the marula fruits, the biometry and breaking the dormancy in the marula seeds. Using 200 ripe fruits, the physicochemical characterization was done. From a random sample of 400 seeds, an assessment of the biometrics was performed, and the weight, length, width and thickness of the fruits and seeds were evaluated. Two experiments were conducted to study dormancy breaking using pre-germination treatments, which included immersing the marula seeds five times (0, 15, 30, 45 and 60 minutes) in concentrated sulfuric acid (96%) and water, at 65 ºC temperature. The control was time zero, using plain distilled water, with 25 seeds per treatment and four replications. The marula fruits revealed average values of 21.65 ± 3.44 g, 35.5 ± 2.38 and 34.8 ± 2.73, respectively, for weight, diameter and length. The soluble solids (SS), Hydrogenonic Potential (pH), titratable acidity (AT) and ratio (AT/SS) were 14.74 ± 1.0º Brix, 3.93 ± 0.49 pH, 0.63 ± 0.22 and 27.07 ± 12.10, respectively. For the weight of one thousand seeds, the average value was 3.576 ± 188.4 g. The mean values for the dimensions of the width, length and diameter of the seeds were 22.9 ± 2.11; 23.7 ± 2.04; and 14.9 ± 2.09 mm, respectively. The physiological quality of these seeds was enhanced by immersing the seeds from freshly picked fruits in sulfuric acid for a maximum of 30 minutes and storing them for six months.
Anamnestic response against bovine viral diarrhea virus and bovine herpesvirus type 1 in young Holstein heifers vaccinated with four different commercial formulations
Authors: Gomes Viviani , Baccili Camila Costa , Marques Raquel Sousa , Soriano Sergio , Pedroso Natália Hettwer , Flores Eduardo Furtado
Published: July 2023

ABSTRACT: This study evaluated the vaccine-induced serological response after administering four commercial formulations containing Bovine Viral Diarrhea Virus (BVDV) type-1, BVDV-2, and Bovine Herpesvirus type 1 (BoHV-1) to young heifers with circulating maternal antibody titers. The study also determined the anamnestic response to vaccinations after the complete metabolization of maternal antibodies when the calves reached six months. Eighty-seven Holstein heifers were selected and randomly distributed into four experimental groups based on the vaccine administered. The four vaccine-based experimental groups were as follows: vaccine A (n = 22), vaccine B (n = 22), vaccine C (n = 24), and vaccine D (n = 19), given on the 60th, 90th, and 180th day of life, respectively. Virus-neutralization (VN) tests were performed at baseline (day 60) and 30 days after administering the second (day 120) and third doses (day 210). We analyzed the effect of vaccine group (P ≤ 0.001), day of vaccination (P ≤ 0.001), and group versus vaccine day interaction (P ≤ 0.001) for antibody titers produced against BVDV-1, BVDV-2, and BoHV-1 using the PROC MIXED method (Statistical Analysis System -SAS 9.4). Antibody titers against BVDV-1, BVDV-2, and BoHV-1 were similar at baseline and on day 60 of life. The mean antibody titers were constant and persisted against BVDV-1 in heifers immunized with vaccines A and C. Heifers immunized with vaccine A alone had a similar effect against BVDV-2. Regarding BoHV-1, the antibody titers decreased between days 60 and 210 in groups B, C, and D. The antibody titer for heifers in group A also decreased between days 60 and day 120, and an intense increase in titers was observed on day 210. After being immunized with formulations B, C, and D, the frequency of animals with titers above protective levels for BVDV-1, BVDV-2, and BoHV-1 was very low or null. Indicators of anamnestic response were observed in heifers vaccinated with formulation A only. Therefore, it can be concluded that passive immunity negatively interferes with antibody production after vaccination.
Severe enteritis in dogs associated with single and mixed infections
Authors: Mortari Ana Paula Gnocato , Seeger Marlane Geribone , Oliveira Pablo Sebastian Britto de , Masuda Eduardo Kenji , Flores Mariana Martins , Flores Eduardo Furtado , Cargnelutti Juliana Felipetto , Vogel Fernanda Silveira Flôres
Published: July 2023

ABSTRACT: Infectious enteritis is highly prevalent among dogs worldwide and, in some cases, it can be fatal. This study describes the clinical and laboratorial findings of single and mixed infections associated with severe enteritis in 76 dogs from Southern Brazil. Intestinal segments and/or fecal samples were subjected to histopathology and molecular detection of DNA viruses, bacteria and protozoa. Severe intestinal lesions were observed in most cases. Single infections were detected in 52.6% of cases, double (36.8%) and triple (10.5%) infections were also identified. Carnivore protoparvovirus 2 (CPV-2) was the most frequent agent in single infections (36.8%). Coinfection by CPV-2 and Giardia spp. was the most common in dual infections (19.7%), followed by CPV-2 and Cryptosporidium spp. (10.5%). The most frequent triple infection was CPV-2, Giardia sp. and Cryptosporidium spp. (6.6%). Our results shown that single and mixed infections are associated with severe enteritis in dogs in southern Brazil, mainly involving CPV-2 and Giardia sp.
THE USE OF ADHESIVE RADIOPAQUE GRIDS IN GENICULAR NERVE BLOCK BY RADIOSCOPY
Authors: LEAL DANIEL PEIXOTO , MERINO MATHEUS GARCIA LOPES , ATIEH MUHAMAD MUSTAFA , GUEDES VITOR HENRIQUE CAMPOY , PECORA JOSE RICARDO , HELITO CAMILO PARTEZANI
Published: July 2023

ABSTRACT The performance of genicular nerve block requires an imaging method to guide the procedure. Radioscopy has the disadvantage of being radiation dependent. Objective: To assess whether the use of adhesive radiopaque grids reduce radiation exposure in these cases. Methods: This is a cross-sectional study conducted with 23 orthopedists in which needles were positioned in a model with and without the use of adhesive radiopaque grids. The number of fluoroscopy shots necessary for proper positioning in three points (superior lateral, superior medial, and inferior medial) were registered. Results: A statistical difference was observed in the three blocking points studied. The number of radioscopies required for these three points were 12.1 ± 2.5 in the group without grid and 5.0 ± 1.8 in the group with grid. The superior medial point presented the greatest numerical difference and the inferior medial point the smallest. Conclusion: The use of adhesive radiopaque grids led to a statistically significant reduction in the number of radioscopies/fluoroscopies required to perform the genicular block. The use of this device increases the safety of the physician and patient by reducing radiation exposure in this procedure. Level of Evidence III, Level of Evidence II, Random Clinical Trial.
Intenção de amamentar e associação com características sociodemográficas, obstétricas e experiência com o aleitamento materno entre mulheres grávidas
Authors: Castilho Bárbara Moreira de , Fernandes Renata Cordeiro , Höfelmann Doroteia Aparecida
Published: July 2023

Resumo Objetivos: estimar o tempo de intenção de amamentar (IA) e sua associação com características sociodemográficas, obstétricas e experiência com amamentação entre gestantes em acompanhamento pré-natal. Métodos: estudo transversal com gestantes em serviços públicos de saúde em Colombo, Paraná. O tempo de IA foi questionado às gestantes. Regressão de Poisson binomial negativa com ajuste robusto da variância permitiu estimar razões de prevalência (RP) brutas e ajustadas, e intervalos de confiança de 95% (IC95%) da associação entre tempo de IA e variáveis de exposição. Resultados: dentre as gestantes (n = 604), 7,9% afirmaram IA por menos de 6 meses, 28,0% de 6 a 11 meses, 38,3% de 12 a 23 e 25,9% por 24 meses ou mais. O tempo médio de IA foi de 13,5 ± 8,4 e mediana de 12 meses. Gestantes em insegurança alimentar moderada (RP=1,34; IC95%=1,04-1,73), multíparas (RP=1,13; IC95%=1,00-1,26), e que referiram terem sido amamentadas quando bebês (RP=1,19; IC95%=1,02-1,40) apresentaram maior tempo de IA. Conclusões: situação de segurança alimentar, primiparidade e exposição ao aleitamento materno na infância são determinantes da IA na gestação.
Experimental investigations on early crack development in fully restrained reinforced concrete members with active zero-displacement control
Authors: Schmidt Christopher , Chudoba Rostislav , Jin Chao , Hegger Josef
Published: July 2023

The development of restraint-induced stress in reinforced concrete members at an early age can be tested using setups applying either passive or active displacement control. To provide results relevant for the practical design of minimum reinforcement to limit the crack width, an actively controlled test setup for large specimens was developed to perform a systematic experimental campaign focusing on the early crack development under well-defined mechanical and thermal boundary conditions. The full degree of restraint achieved by actively preventing any displacement of the member allowed for the theoretical interpretation of early restraint-induced stress evolution, deformation behaviour in the cracked and uncracked regions, and reinforcement stress for a variety of parameters, including hydration rates, member height, bar diameters and subsequently reinforcement ratio. The cracking process, starting with primary cracks accompanied by secondary cracks within the effective reinforcement area, is monitored in combination with the development of the tensile strength and Young’s modulus of the concrete. Furthermore, the time of cracking and the forces released upon crack occurrence, considering the effect of self-equilibrating stresses, are determined, analysed, and compared with the results of crack-force based design rules to determine the minimum amount of reinforcement that ensures the crack width limitation.
Privatizing the Chinese Tiehua Industry: A Qualitative Economic Case Study
Authors: McIntyre Kevin , Fang Qin , Roberts Andrew , Weetman Carly
Published: July 2023

Tiehua (wrought iron painting) is a folk art originating in Anhui Province, China. The tiehua industry has changed drastically over the last 25 years as China's economy has liberalized: Wuhu Tiehua Factory, a heretofore state monopoly, underwent bankruptcy restructuring in 1992, 2002, and 2013, while several new, smaller and more competitive firms have entered the market. The marketization of tiehua has become a meaningful local and regional issue centering on the ownership structure of the tiehua firms, and has proven to be an excellent case study in basic economic theory.
Raised Eyes and Humble Hearts: The Body as/in Space in Pss 123 and 131
Authors: Prinsloo Gert T.M.
Published: July 2023

As a mobile spatial field, the human body is a space andfunctions in space. The body governs spatial orientation and perceptions of direction, location and distance and determines human experiences and representations of space on the continuum between positive and negative and/or sacred and profane space. In the Psalter, space is represented and experienced through the eyes of a "lyrical I" whose body is located off-centre, in chaos and despair, or at-centre, in harmony and peace. Supplication and praise, ritual and prayer are all expressions of the lyrical I's desire to be located at-centre, in the presence of the deity, in sacred space. Sacred space is not an ontological location, but a subjective, bodily experience of being in the presence of the divine. An analysis of the whole-body experience of the lyrical I in Pss 123 and 131 illustrates the poet's longing for (Ps 123) and experience of being at-centre (Ps 131), in divine presence, i.e., in sacred space.
A Woman with Multiple Identities: Reading the Ruth Character in Post-Apartheid South Africa
Authors: Masenya (Ngwan'a Mphahlele) Madipoane
Published: July 2023

Our varied identities as Old Testament scholars located on the African continent need to shape our reading processes as well as our scholarship. The Ruth character in the Book of Ruth in the Hebrew Bible carries multiple identities. If the character is engaged within the intersection of foreignness, migration, gender, and economic survival, which reading may emerge? How would such a reading impact the theory and praxis of South African Old Testament scholarship in present-day South Africa?
Sacred Texts Produced under the Shadows of Empires: Double Consciousness and Decolonial Options in Reading the Hebrew Biblel
Authors: Ramantswana Hulisani
Published: July 2023

The Hebrew Bible is a complex of sacred texts shaped and reshaped by Israelites, Judaeans and later Jews under the shadows of empires, which threatened, oppressed, dominated and at times provided protection to them. At the same time, they more often than not had to resist, shun, and yet forcefully submit to the empire and on other occasions, they supported, colluded with and mimicked the empire. This essay explores decolonial options for reading the Hebrew Bible, considering two determinations: the Hebrew Bible is a product of the colonised and was influenced and sponsored by the empire.
It's a Matter of Justice! The Old Testament and the Idea of Retribution
Authors: Ausloos Hans
Published: July 2023

This essay aims to do justice to an often misunderstood aspect of the concept of biblical - in this case, Old Testament - justice, namely the doctrine of retribution. Following on some introductory matters regarding the terminology, the various facets of the Old Testament idea of retribution will be presented: individual retribution, collective and corporative retribution, and transgenerational retribution. Moreover, God's role within the Old Testament 'doctrine of retribution' will be dealt with. Finally, it will be shown that, in some instances, Old Testament authors also have highlighted some risky sides of this 'doctrine of retribution'.
A proposed method for optimizing coal pillar design using coalfield-specific uniaxial compressive strength
Authors: Bruwer F.J.N. , Stacy T.R.
Published: July 2023

The research described considers whether the variability in coal material strength, as derived through a series of uniaxial compressive strength (UCS) tests, could be used to indicate the variability in coal pillar strength. The aim is to be able to use a distribution of UCS tests as input into the coal pillar strength calculation. This will allow the pillar design to be expressed in terms of a probability of failure rather than as the commonly used safety factor. To achieve this, the bulk strength factor associated with commonly used pillar strength formulae was replaced with a distribution of UCS results divided by an adjustment factor. The factor was determined so as to ensure that the resulting bulk strength does not deviate from the statistically determined bulk strength published in the original formulae. This approach enabled pillar strength distributions to be obtained using industry-accepted strength formulae, subsequently allowing for a probability of failure to be calculated for a specific pillar design. Using a regional coal material strength curve as a baseline, coalfields in which the coal is stronger than the regional mean can be identified and the pillar designs optimized. This is based on the stronger coals achieving lower probabilities of failure at similar safety factors. The research has considered actual UCS data from multiple mines in the Mpumalanga coalfields of South Africa, and has proved that the variability in material strength between coalfields could allow for some optimization using the proposed approach. Based on the data used in the study, a 2.78% increase in extraction could be achieved. However, further research will be required to validate the results of the study in an underground environment.
Simulating pillar reinforcement using a displacement discontinuity boundary element code
Authors: Esterhuyse J.C. , Malan D.F.
Published: July 2023

In this study we explore the use of a novel numerical modelling approach to study the effect of pillar reinforcement on pillar stability. Case studies in the literature indicate that tendons, strapping of the pillars, and shotcrete or thin spray-on liners are commonly used to reinforce pillars. No clear methodology exists to select the type of support or to design the capacity of the support required, however. This has led to ongoing collapses in some mines in spite of heavy support being used to reinforce unstable pillars. A limit equilibrium model with confinement on the edge of the pillar was used to simulate the interaction of the support with the failing pillar. The model correctly predicts that an increase in confinement will lead to a decrease in the extent of pillar failure. As the displacement discontinuity boundary element method allows for the efficient solution of large-scale bord-and-pillar layouts, the effect of pillar confinement can now be studied on a mine-wide scale. Accurate calibration of the limit equilibrium model is, however, required before this method can be used for the design of effective pillar support.
Numerical simulation of large-scale pillar-layouts
Authors: Napier J.A.L. , Malan D.F.
Published: July 2023

A number of shallow coal or hard rock mines employ pillar mining systems as a strategy for roof failure control. In certain platinum mine layouts, pillars are designed to 'crush' in a stable manner as they become loaded in the panel back area. The correct sizing of pillars demands some knowledge of the pillar strength and the overall layout stress distribution. It is particularly important to understand the impact of the layout geometry on the effective regional 'stiffness' of the rock mass around each pillar. An important design strategy is to model relatively detailed layout configurations which include a precise representation of the local pillar layout geometry and to analyse multiple mining scenarios and extraction sequences to select optimal pillar sizes and barrier pillar spacing. Although computational solution techniques are now impressive in terms of run time efficiency, a major difficulty is often encountered in assigning suitable material properties to the pillars and in devising an effective material description of the layered rock strata overlying the mine excavations. This paper outlines an efficient numerical strategy that can be used to assess large-scale pillar layout performance while retaining the ability to modify individual pillar constitutive behaviour. The proposed method is applied to selected layouts to compare estimated average pillar stress values against values determined by detailed modelling and against observed behaviour.
"In the trenches": South African vice-chancellors leading transformation in times of change
Authors: Buccus Imraan , Potgieter Cheryl
Published: July 2023

This paper examined the transformational goals and strategies of nine black university vice-chancellors in South Africa in order to understand how they direct transformation of higher education in the country. The paper draws from narrative inquiry underlined by transformational leadership theory, and focuses on in-depth interviews with university vice-chancellors. The study focused on the key themes that direct vice-chancellors' transformational leadership strategies. These are devolution of power, the needs to transform the institutional culture and attain social equity through putting students first, and addressing the next generation of academic scholars. Finally, the paper draws attention to the enduring imperative to transform universities through a social equity lens and the significance of vice-chancellors' transformational agendas and strategies in this regard. The local context of the university plays an important role in transformational leadership goals and strategies
Pensar la pedagogía como psicagogía en el último Foucault
Authors: Ortiz-Leoni Juan Emilio
Published: July 2023

Las ideas de Michel Foucault han tenido una gran influencia en las ciencias de la educación. Los estudios acerca de la sociedad disciplinaria se han convertido en una referencia ineludible para pensar las dinámicas de la institución escolar. Sin embargo, esa influencia a menudo se reduce a su enfoque crítico y deconstructivo, sin elaborar adecuadamente los aspectos propositivos y la influencia constructiva que su teoría puede ofrecer. Estetrabajo parte de la hipótesis de que los últimos estudios del filósofo brindan un marco conceptual sólido que va más allá la mera crítica hacia las relaciones de poder, aportando intuiciones relevantes para aplicar al campo educativo. Siguiendo esta lógica, en la presente propuesta se explorarán algunos conceptos claves del pensamientotardío de Foucault: régimen de verdad, prácticas de sí, psicagogia y parresía. Estos conceptos permitirán rastrear la importancia de los últimos trabajos de Foucault para pensar la tarea educativa. Dichos trabajos invitan a considerar la potencia de la filosofía, ya no solo para cuestionar las estructuras sedimentadas, sino también como una fuerza motivadora de procesos de transformación ética y posibilidades de invención para la trama vital delos individuos. En síntesis, la argumentación permitirá mostrar que la interpretación que el filósofo realiza tanto de la filosofía estoica como del cinismo a —través de la noción de parresía— proporciona pautas claras para aplicar al trabajo pedagógico y a la relación docente-alumno.
Posibilidad de un constructivismo pedagógico realista
Authors: Tomás Bellomo Santiago
Published: July 2023

La discusión acerca de la capacidad de nuestra inteligencia de acceder al conocimiento de la realidad en sí es y sigue siendo una de las más antiguas y apasionantes de la filosofía. Piaget revolucionó la historia de la psicología y la pedagogía a partir de sus descubrimientos científicos relativos al modo en que el ser humano conoce. Sin embargo, por su misma inclinación filosófica, su constructivismo pedagógico quedó fuertemente arraigado en tradiciones filosóficas inmanentistas, a punto tal que la asociación entre constructivismo pedagógico y antirrealismo constituye una suerte de lugar común y un cierto presupuesto dogmático. Lo cierto es que esta asociación no constituye la única alternativa posible y, hasta cierto punto, ni siquiera parece responder cabalmente a los principios o consecuencias últimas de los hallazgos del constructivismo de Piaget. Es posible justificar el constructivismo pedagógico desde posiciones realistas, siempre y cuando se revisen algunos supuestos que la modernidad ha instalado de manera no muy crítica en los círculos educativos y filosóficos. La revisión de la noción de representación, concebida según la tradición aristotélica y aggiornada por los aportes del constructivismo, permite abrir un camino de conciliación entre el constructivismo pedagógico y un tipo de realismo que sea, a la vez, robusto y plural.
Kinetic and thermodynamic study of non-enzymatic browning of clarified pear juices
Authors: Ibarz Raquel , Garvín Alfonso , Ibarz Albert
Published: July 2023

En el presente trabajo se aplica la compensación cinética y termodinámica para evaluar las cinéticas de pardeamiento no enzimático de zumos clarificados de pera. Las constantes cinéticas se obtuvieron en un trabajo anterior para contenidos en sólidos solubles 47, 54, 63 y 70,5 °Brix y a temperaturas de 50, 60, 70, 80 y 90 °C. Para estas contantes cinéticas, las constantes de equilibrio se determinaron utilizando la ecuación de Eyring para cada contenido en sólidos solubles y cada temperatura. Las constantes cinéticas se ajustaron a la ecuación de Arrhenius y se comprobó que las parejas de valores estimados para lnK0 y la energía de activación siguen una tendencia lineal, lo que define que existe una compensación cinética, con una temperatura isocinética de 145,6 °C. Las constantes de equilibrio se ajustaron a la ecuación de Van't Hoff y el conjunto de los pares de valores estimados para la entalpía de activación y la entropía de activación siguieron una línea recta lo que da lugar a la compensación termodinámica, con una temperatura de isoequilibrio de 142,8 °C. Las temperaturas isocinéticas y de isoequilibrio resultaron muy similares. Se concluyó que el mecanismo es el mismo para los intervalos de contenido en sólidos solubles y temperatura estudiados. Dado que todas las temperaturas isocinéticas y de isoequilibrio fueron superiores a los valores de temperatura de trabajo, se concluyó que el control fue entálpico para todos los casos.
Influence of partial substitution of NaCl with KCl on the sensory characteristics of Port Salut cheese
Authors: Ramón Gill Tomas , Ramón Allasia Hernán , Ernesto Hough Guillermo , Nicolas Lanteri Mario , Rafael Lespinard Alejandro
Published: July 2023

En este estudio se evaluaron y compararon las propiedades sensoriales de un queso Port Salut con una sustitución del 50% de NaCl por KCl, junto con dos muestras del mismo queso sin sustitución (una elaborada de manera idéntica al queso sustituido, pero con una concentración estándar de NaCl, y la otra de una marca comercial líder). Las características sensoriales distintivas de ambos tipos de queso fueron evaluadas por un panel no entrenado mediante pruebas de clasificación de atributos. Además, se determinó la aceptabilidad del queso reducido en sal en comparación con su versión no reducida, tanto cuando las muestras estaban sin identificar como cuando lo estaban. En este último caso, a la muestra de queso reducido se le asoció un beneficio nutricional. Los evaluadores detectaron diferencias en cuanto al sabor salado y amargo al compararlo con las muestras no reducidas. La aceptabilidad del queso reducido fue mayor que la de su versión sin reducción, y aumentó cuando se presentó a los evaluadores la muestra identificada y con una afirmación nutricional de impacto positivo para la salud.
Studying cooking process of grains by compression/penetration test
Authors: Miano Alberto Claudio
Published: July 2023

Este trabajo tuvo como objetivo comparar el uso de tres diferentes sondas para estudiar la cinética de ablandamiento de leguminosas durante su cocción. Para lo cual se emplearon las sondas: aguja (2 mm), esférica (6,35 mm) y de plato (75 mm), para evaluar la cinética de ablandamiento de dos especies de leguminosas: frijol castilla (Vigna unguiculata) y zarandaja (Lablab purpureus). Los granos de las leguminosas fueron hidratados y luego cocinados en agua hirviendo, sacando una muestra cada cierto tiempo del proceso para medir la fuerza de compresión o penetración de los granos. La cinética de ablandamiento fue obtenida graficando la máxima fuerza de compresión/penetración en función del tiempo de proceso, ajustando los datos a una ecuación del mismo comportamiento cuyos parámetros nos den información del proceso de cocción. Como principal resultado se tuvo que la velocidad de ablandamiento fue similar para las tres sondas utilizadas. Sin embargo, al usar la sonda tipo aguja y la esférica se tuvo resultados similares con respecto al tiempo de cocción y la relación fuerza inicial y final de compresión/penetración. Concluyendo que se podría hacer comparable los resultados entre una sonda de aguja y esférica para determinar algunas propiedades de la cinética de cocción.