bluuebunny/crossref_metadata_2025 huggingface dataset:
Complex-valued controlled rectangular metric type spaces and application to linear systems
Authors: Azmi Fatima M. , Mlaiki Nabil , Haque Salma , Shatanawi Wasfi
Published: May 2023

Fixed point theory can be generalized to cover multidisciplinary areas such as computer science; it can also be used for image authentication to ensure secure communication and detect any malicious modifications. In this article, we introduce the notion of complex-valued controlled rectangular metric-type spaces, where we prove fixed point theorems for self-mappings in such spaces. Furthermore, we present several examples and give two applications of our main results: solving linear systems of equations and finding a unique solution for an equation of the form $ f(x) = 0 $.
Relational Contracts: Public versus Private Savings
Authors: Dilmé Francesc , Garrett Daniel F.
Published: May 2023

Work on relational employment agreements often predicts low payments or termination for poor performance. The possibility of saving can, however, limit the effectiveness of monetary incentives in motivating an employee with diminishing marginal utility for consumption. We study the role of savings and their observability in optimal relational contracts. We focus on the case where players are not too patient, and hence the constant first‐best effort cannot be implemented. If savings are hidden, the relationship eventually deteriorates over time. In particular, both payments and effort decline. On the other hand, if savings are public, consumption is initially high, so the agent's savings fall over time, and effort and payments to the agent increase. The findings thus suggest how tacit agreements on consumption can forestall the deterioration of dynamic relationships in which the agent can save.
Monetary policy and long‐term interest rates
Authors: Amisano Gianni , Tristani Oreste
Published: May 2023

We study the relationship between monetary policy and long‐term rates in a structural, general equilibrium model estimated on both macro‐ and yield‐data from the United States. Regime shifts in the conditional variance of productivity shocks, or “uncertainty shocks,” are a crucial driver of bond risk premia. We highlight three main results. First, our term premia on 10‐year bonds are highly correlated with estimates from the affine literature, even if less markedly volatile. Second, uncertainty shocks also induce an increase in equity premia and exert downward pressure on consumption and inflation. An increase in equity premia will therefore be accompanied by a cut in policy interest rates, even if the policy rule does not directly react to equity prices. This model mechanism is consistent with the empirical evidence on the “Fed put.” Third, model‐implied long‐term inflation expectations are less dogmatically anchored than survey‐based measures over the 2000s.
Estimating demand for differentiated products with zeroes in market share data
Authors: Gandhi Amit , Lu Zhentong , Shi Xiaoxia
Published: May 2023

In this paper, we introduce a new approach to estimating differentiated product demand systems that allows for products with zero sales in the data. Zeroes in demand are a common problem in differentiated product markets, but fall outside the scope of existing demand estimation techniques. We show that with a lower bound imposed on the expected sales quantities, we can construct upper and lower bounds for the conditional expectation of the inverse demand. These bounds can be translated into moment inequalities that are shown to yield consistent and asymptotically normal point estimators for demand parameters under natural conditions. In Monte Carlo simulations, we demonstrate that the new approach works well even when the fraction of zeroes is as high as 95%. We apply our estimator to supermarket scanner data and find that correcting the bias caused by zeroes has important empirical implications, for example, price elasticities become twice as large when zeroes are properly controlled.
Bootstrap inference under cross‐sectional dependence
Authors: Conley Timothy G. , Gonçalves Sílvia , Kim Min Seong , Perron Benoit
Published: May 2023

In this paper, we introduce a method of generating bootstrap samples with unknown patterns of cross‐ sectional/spatial dependence, which we call the spatial dependent wild bootstrap. This method is a spatial counterpart to the wild dependent bootstrap of Shao (2010) and generates data by multiplying a vector of independently and identically distributed external variables by the eigendecomposition of a bootstrap kernel. We prove the validity of our method for studentized and unstudentized statistics under a linear array representation of the data. Simulation experiments document the potential for improved inference with our approach. We illustrate our method in a firm‐level regression application investigating the relationship between firms' sales growth and the import activity in their local markets using unique firm‐level and imports data for Canada.
Quantifying noise in survey expectations
Authors: Juodis Arturas , Kucinskas Simas
Published: May 2023

Expectations affect economic decisions, and inaccurate expectations are costly. Expectations can be wrong due to either bias (systematic mistakes) or noise (unsystematic mistakes). We develop a framework for quantifying the level of noise in survey expectations. The method is based on the insight that theoretical models of expectation formation predict a factor structure for individual expectations. Using data from professional forecasters, we find that the magnitude of noise is large (10%–30% of forecast MSE) and comparable to bias. We illustrate how our estimates can be applied to calibrate models with incomplete information and bound the effects of measurement error.
CSIC scientists and scholars in Africa: visual, colonial, and scientific action
Authors: López Sánchez José María , Lérida Jiménez Alba
Published: May 2023

This article deals with the role played by science, scientific institutions, and the administrative apparatus of Francoism in the construction of a particular version of Africanism. The Institute of African Studies, part of CSIC, was created by the Prime Minister through the General Secretary of Morocco and the Colonies. Together with them, a large group of Africanist (journalists, army officers, scholars) from the Institute of Political Studies manoeuvred in the 1940s to create a colonial institute from which to deploy scientific action in Africa. This was interpreted as a mission not only to justify their irredentist positions about Africa but also to reinforce the legitimacy of the dictatorial regime.
Africanist anthropology during Francoism: the Bernardino de Sahagún Institute, 1939-1951
Authors: Chicharro Manzanares Cristina
Published: May 2023

With the creation of the “Bernardino de Sahagún” Institute, anthropology was put at the service of the national-Catholic values that the Francoist regime imposed on all levels of public life in the immediate aftermath of the war. Anthropological research focused on two main issues: scientific-medical issues - anthropobiology - and cultural issues - ethnology. The colonial discourse and the renewed interest in Africanist studies resulted in funding being made available for researchers to visit the African colonies under Spanish jurisdiction to carry out anthropobiological and ethnological studies.
The Canary Museum: from transnational trade of human remains to the visual representations of race (1879-1900)
Authors: Girón Sierra Álvaro , Betancor Gómez María José
Published: May 2023

“El Museo Canario” (Canary Museum) was founded in Las Palmas de Gran Canaria in 1879. It holds an impressive collection of the pre-Hispanic past of the Canaries. El Museo Canario built an important transnational network of exchange. This was facilitated by the widespread interest in the human remains of the pre-Hispanic inhabitants of the Canaries. His founder Gregorio Chil, and the Museum Board, were interested in building a regional race to represent the trans-historical essence of the archipelago’s population. This was scientifically grounded on different racial classification projects with colonial connotations. Speculation on the possible links between the archipelago’s extinct race, the Amazigh (Berbers), and hypothetical primitive European populations became popular. These debates had a material side: racial similarities and differences were exhibited, visualized, illustrated, and thus demonstrated. Lithographs of human remains circulated in Europe and beyond. These supposedly objective representations of race were published in authoritative books and scientific articles. In addition, individuals were drawn and photographed, often with the idea of showing the continuity between the aboriginal population and the current inhabitants of the archipelago. Visual representations of the dead (skulls, mummies) entered a sort of dialectic relationship with representations of the living.
Constructions of the gaucho as vagrant and idle and as a born criminal: Portraits of Juan Moreira (Argentina, 19th and 20th centuries)
Authors: Miranda Marisa A.
Published: May 2023

This article examines aspects of the discourse of power by which the figure of the Argentine gaucho was labeled as a “vagrant and idle” subject, based on the study of the archetypical Juan Moreira. In particular, the article explores analyses carried out decades after his death, influenced by the theories of Cesare Lombroso and Nicola Pende. Born in 1829 and killed at the hands of the police in 1874, Moreira became an emblematic personality of local folklore. Although his life has been the subject of extensive literary analysis, largely focused on the publication of Eduardo Gutiérrez’s novelistic portrayal, there has not been as much focus on the attempt to validate scientifically his stigmatization using the theories of these Italian thinkers. This text, therefore, explores readings of Juan Moreira carried out during the 20th century by two doctors, José Ingenieros and Nerio Rojas. In methodological terms, triangulation techniques were used, taking as vertices the legislation in place at that time, the interpretations of his life made through his transformation into a literary and film character, and finally, the aforementioned psychodiagnostic evaluations based on the integration of hypothetical environmental and innate characteristics.
Álvaro da Costa’s journey to Persia and Turkey (1611), the ruins of Babylon, and the riddles of globalization
Authors: Martínez Bermejo Saúl
Published: May 2023

This article analyzes Álvaro da Costa’s return trip from the Estado da Índia to Lisbon in 1611. The constraints of Costa’s travel allow us to discuss some common assumptions about the character and spirit of early modern travelers and to illustrate some of the limits of travelers’ observations and the peculiar modes of knowledge they displayed. Reading through the many misunderstandings and apparent mistakes that Costa introduced in his Tratado da viagem, the article also explores the complex dynamics of “discovery” and argues that early modern globalization must be understood as a manyfold process. Individuals not only disposed of different information, but they also used very diverse frameworks to interpret and make sense of such information. The article contrasts Costa’s use of older but resilient interpretative frameworks with more modern and more accurate interpretations and shows that very different perceptions about world connections coexisted during the early modern age. In particular, the article focuses on how Costa actively combined his observations of the ruins of Babylon and other cities he found on his route with previous paradigms of universal history, such as biblical theories on the historical succession of empires.
Redes sociales en bibliotecas. Un análisis bibliométrico en el ámbito iberoamericano
Authors: Retuerto-Marzano Lizette , Castro-Cordova Elisabeth P. , Kessler María Inés , Limaymanta Cesar H.
Published: May 2023

En la actualidad, vivimos en una época de avance tecnológico constante, donde el uso de las redes sociales en los sistemas de información es esencial para tener mayor alcance a los usuarios. Este estudio realiza un análisis bibliométrico de la producción científica sobre redes sociales en bibliotecas en Iberoamérica que se encuentra indexada en la base de datos Scopus durante el período 2007-2021. Se analizan 76 publicaciones mediante indicadores de producción, colaboración, impacto y de análisis estructural temático. Los resultados muestran que la producción científica sobre redes sociales en bibliotecas ha tenido un crecimiento irregular durante este período; los autores y revistas españolas presentan una mayor productividad; las publicaciones en revistas de EE. UU. o Reino Unido mejor posicionadas tienen mayor impacto; y existe un bajo nivel de colaboración científica. Además, predominan los estudios enfocados a bibliotecas universitarias o académicas, aunque aparecen también aplicados a todo tipo de bibliotecas.
Exploring the role of CBT in the self-management of type 2 diabetes: A rapid review
Authors: Visagie Elne , Deacon Elmari , Kok Rümando
Published: May 2023

Background: Type 2 diabetes has been recognised as a global health concern: one that requires intervention to lessen the incumbrance caused by the chronic illness. This rapid review was conducted to determine the scientific evidence available on how Cognitive Behaviour Therapy (CBT) interventions improved the self-management of individuals with type 2 diabetes.Aim: The aim of the review was to synthesise current scientific evidence regarding CBT-based interventions and self-management practices.Method: The rapid review served as a framework to appraise current national and international literature. The researchers used Google Scholar, Journal Storage (JSTOR), PsycINFO, APA PsycArticles, SAGE journals and EBSCO Discovery Services to search for relevant studies. This was performed by employing keywords. Nine relevant studies were identified. The studies were heterogenous in methodology. Seven of the nine studies were conducted in developing countries.Results: The study found that the context of developmental countries plays a significant role in the development of type 2 diabetes and requires tailored intervention because of socio-economic variabilities. The main themes identified in relation to improving self-management included: the characteristics of the CBT-based interventions, namely the format, duration, and outcomes, and identifying the techniques and components used in the CBT-based interventions.Conclusion: The review emphasised the need to further investigate the role of CBT in improving self-management of type 2 diabetes, especially in a South African context.Contribution: The review summarised the techniques that have proven to be effective for the self-management of type 2 diabetes.
Exploring the collaborative care of patients with pelvic fractures in Tshwane, South Africa
Authors: Sobantu Ntombenkosi A. , Tshabalala Muziwakhe D. , Chetty Verusia
Published: May 2023

Background: Pelvic fractures are complex injuries that lead to long-term disabilities and poor health-related quality of life (HRQoL). Even though pelvic fractures are known to be challenging to manage, there is limited information on guidelines and protocols to ensure that patients receive comprehensive and collaborative healthcare.Methods: A qualitative descriptive phenomenological approach was utilised to explore current practices and innovations of healthcare professionals (HPs) in Tshwane academic hospitals in the collaborative management and rehabilitation of patients with pelvic fractures, using semi-structured interviews. Thematic analysis was used to analyse data.Results: Six overarching themes were identified from the interviews with HPs: The biopsychosocial lens of the patient, limitations in approaches to care, contextual impediments to care, the team challenge; the biopsychosocial aspects of care and forging forward to improve care.Conclusion: A multidisciplinary approach is encouraged for the comprehensive management of pelvic fractures. However, a poor understanding of roles and poor referral structures challenge this approach. Further barriers to caring include staff shortages and limited resources. Healthcare professionals recommended interprofessional education and collaborative practice, student training and using standardised outcome measurement tools to improve care for patients with pelvic fractures.Contribution: This study lays a foundation to initiate conversations about the development of an interprofessional model of care for patients with pelvic fractures. Findings might inform health policies on the management of pelvic fractures. Healthcare professionals might apply strategies that enhance the quality of healthcare provided. Patients with pelvic fractures might receive quality interprofessional healthcare that promotes quality of life, post pelvic fractures.
Diagnostic Accuracy in Quantitative Evaluation of Attenuation of Pulmonary Thrombus on Noncontrast Computed Tomography Scan
Authors: Abhiram P. S. , Masimade Suresh B. , Sushaal C. R.
Published: May 2023

Objectives:

The objective is to assess the role of noncontrast computed tomography (NCCT) in the identification of pulmonary thromboembolism (PTE) using the difference in attenuation value between thrombus and blood pool and to establish its diagnostic accuracy.

Methods:

A single-center retrospective analysis was carried out for 1 year among the patients of all age groups who were referred for imaging workup with clinical suspicion of pulmonary embolism (PE). A standard protocol was followed for all the patients undergoing computed tomography pulmonary angiography (CTPA). The diagnosis of PE was based on the direct visualization of the intraluminal thrombus as complete/partial filling defect on CTPA. The average attenuation value of the thrombus on NCCT was measured retrospectively after referring to its position on the corresponding enhanced scans. The difference in attenuation of the pulmonary vessels with and without the thrombus was calculated on NCCT. The data was utilized in the generation of receiver operator characteristic curve to obtain the best cut off level for attenuation differences of the vessels and its accuracy in detecting PTE was determined.

Results:

Among the study population of 50 subjects, the mean age was found to be 42 years in our study with male sex (72%) having more preponderance to PTE than female sex (28%). The average blood pool range was between 20 and 60 Hounsfield unit (HU). The mean of differences in attenuation between thrombus and blood pool was 34.07 HU. The optimal cut off level for PE affection proved to be difference in attenuation of the pulmonary arteries of more than 20 HU. The sensitivity and specificity were 89.47% and 83.33%, respectively.

Conclusion:

In clinically suspected cases of PTE, CTPA is the most reliable diagnostic tool. However, with plain computed tomography itself, considering the difference in attenuation values, the thrombus can be identified in majority of the cases thereby reducing the exposure to radiation and contrast to the patients.
Sociedad de la información: un flujo de información a lo largo de la historia
Authors: Bocco Nieto María Eva
Published: May 2023

La sociedad de la información no es un concepto nuevo, a juicio de la autora, ya que la sociedad es fundamentalmente un fenómeno informativo, según la conclusión que presenta en el presente trabajo, tras un largo recorrido por teorías y conceptos en torno al significado de sociedad de la información.
Determination of electric power generation potential of Abuja’s municipal solid wastes
Authors: Ondachi P.A. , Ozigis I.I. , Zarmai M.T.
Published: May 2023

Electric Power Generation Potential of Municipal Solid Wastes (MSW) in Abuja, the capital city of Nigeria has been studied in this work. A pilot study on  waste generation activities in Galadimawa District of Abuja was carried out and the results were applied to the metropolis as a whole due to the observed  similarities in the demographics of Galadimawa and other Districts in the metropolis. The city of Abuja presently has an annual MSW  generation rate of 973,557 tons with a per capita generation of 0.77 kg/day. Waste fractions for the metropolis were also analysed and discounting  materials that have recycling value, energy bearing fractions of organic and textile wastes were found to be 59.5%. This translates to 579266.42 tons per  annum and with an aggregate higher heating value (HHV) of 15.84 MJ/kg for this fraction, this approximates to about 9.2 x 109 MJ/annum of realisable  energy. Using a typical waste-to-energy (WTE) plant efficiency of 44% it is seen that Abuja’s MSW can support a power generating plant with a capacity of  128 MW. This potential far exceeds the energy being presently delivered to Abuja city from the national grid which is about 80 MW.
Recovery of manganese and zinc from spent zinc-carbon dry cells via sulphuric acid leaching using glucose as reductant
Authors: Sanda O. , Ilesanmi O.J. , Taiwo E.A.
Published: May 2023

The recovery of manganese and zinc from spent zinc-carbon dry cells using sulphuric acid and glucose as the leaching medium and reducing agent  respectively was studied to determine the optimum processing parameters for increasing the recovery of the manganese content. Leaching tests were  done using the Response Surface Methodology with the process variables being leaching time, temperature, acid concentration and glucose dose. Regression equations were obtained from the experimental data for the extraction of manganese and zinc, and the main effects and interactions from  the leaching studies were investigated by the analysis of variance (ANOVA). Experimental results indicate that the dissolution of the battery materials  depends largely on the leaching temperature and glucose dose, with the optimum yield of manganese and zin-c being 81.93 and 98.43 %, respectively  corresponding to a leaching temperature of 70oC, leaching time of 150 min, sulphuric acid concentration of 4 M and glucose dose of 0.5 g/L.
A trust, privacy and security model for e-commerce in Nigeria
Authors: Akinola O. , Asaolu O.
Published: May 2023

Today, digital technologies has permeated every sector of human life from communication to medicine to education to transportation and most recently  shopping.. The mode of buying and selling by Nigerians have moved from traditional to digital, whereby consumers buy and sell goods online. The online  presence of commerce is known as Electronic commerce or E-commerce and it is an initiative amongst other emerging digital sectors in Nigeria  that has witnessed substantive growth recently. However, the issues of security, privacy of data and the trust endeared by users on the initiative remains  a challenging one. Presently in Nigeria, the solutions to combat security concerns of E-commerce are technically inclined and therefore do not sufficiently capture the solution paradigm. Due to a rise in these E-commerce‘s security-related concerns in Nigeria as discovered by taking random samples of the  population used for the survey, this research proposes a Security, Trust and Privacy model for the survival of E-commerce in Nigeria.
Spatial and Temporal Solar Potential Variation Analysis in Uganda Using Measured Data
Authors: Katongole Daniel N , Nyeinga Karidewa , Okello Denis , Mukiibi Daniel , Mubiru James , Kisira Yeeko
Published: May 2023

The paper presents an analysis of spatial and temporal solar potential variations in Uganda. The solar radiation potential distribution was investigated based on measured data from 56 ground meteorological stations across Uganda from January 2015 to February 2022. The data were recorded after every 5-minute interval. The monthly average daily Global Horizontal Irradiance (GHI) was analysed using the spatial inverse distance weighting (IDW) interpolation technique in ArcGIS 10.7.1. The GHI distribution was found to have maxima at equinox and minimum between June and July. The average global horizontal irradiation is found to be 1680 KWh per year, with a daily variability below 10%. This is above the threshold for solar energy applications and with such low variability, large scale solar PV plants can be installed with minimum backup requirements. Northern Uganda receives the highest average daily global horizontal irradiation of 5.38 Whm–2 day–1, while Western Uganda receives 4.16 Whm–2 day–1, the lowest. The average AM/PM ratio depicted a value above 2 for all regions in Uganda and therefore, optimal solar energy exploitation for fixed systems favours eastern orientation. The central, eastern and northern Uganda which is 69.3% of the country has relief favourable for large scale solar PV power plants and CSP facilities.

Keywords: GHI, IDW, Global solar radiation, Solar insolation, PV power plants, Uganda
Effects of Climate Change, Land Use and Land Cover Variability on Green and Blue Water in Wami/Ruvu Basin, Tanzania
Authors: Lazaro Benson HM , Hagai Martine M , Mato Rubhera RAM
Published: May 2023

Water basins are the primary food sources, giving green water and blue water worldwide. Despite the basins’ potential, information on the periodical variations in blue water and green water is sparse, particularly in developing countries. The study specifically evaluated the changes in land use and land cover variability (LULCV), effects of land use and land cover variability on green water and blue water variations, and effects of climatic changes on green water and blue water. The evaluation involved the Enhanced Thematic Mapper and Operational Land Imager satellite images of 1990, 2000, 2010 and 2020. Image processing utilized the Soil and Water Assessment Tool (SWAT) in ArcGIS software. The land use and land cover variabilities indicated that land use supporting social-economic activities increased, while natural land cover decreased. Proportionally, blue water per annum was decreasing due to declining natural vegetation, enhanced by the increased socio-economic activities. Whereas, the increase in green water per annum was due to the increased temperatures, boosted by climate changes. Since the temperature rise is mainly uncontrolled, greenhouse farming should be encouraged for making green water more productive in agriculture and communities should be encouraged to practice environmentally friendly anthropogenic activities for sustainable green water and blue water management.

Keywords: Basin, Green water, Blue water, SWAT model, Climate change
Ethanol Extracts from Selected Tanzanian Medicinal Plants Selectively Inhibit Plasmodium falciparum Growth In Vitro
Authors: Christopher Robert , Msonga Amina , Hoppe Heinrich C. , Boyom Fabrice F.
Published: May 2023

This study aimed to assess the in vitro antiplasmodial and cytotoxic activities of ethanol extracts from the root barks, leaves and stem barks of seven medicinal plant species growing in Tanzania. The antiplasmodial activities of extracts against chloroquine-sensitive (3D7) and multidrug-resistant (Dd2) strains of Plasmodium falciparum were determined using a SYBR green I-based fluorescence assay, while the cytotoxicity of active extracts was determined against the human HepG2 cell line using a resazurin-based assay. Out of twenty-one extracts screened, two of them, namely, DFRE from Dracaena fragrans root bark (IC50Pf3D7 = 2.4 mg/mL) and EHSE from Erythrina haerdii stem bark (IC50Pf3D7 = 8.6 mg/mL and IC50PfDd2 = 7.6 mg/mL), exhibited good potencies against P. falciparum parasites. The two extracts emerged as the most promising and selective inhibitors (inhibited the growth of P. falciparum strains and were not toxic to the human HepG2 cell line) of chloroquine-sensitive (3D7) and multidrug-resistant (Dd2) strains of P. falciparum. Eight other extracts showed moderate potencies with IC50 values ranging from 11–25 mg/mL against both plasmodial strains, while the remaining 11 extracts were mildly active with IC50 values ranging from 25.1 to 96.7 mg/mL. The results of the cytotoxicity test indicated that the median cytotoxic concentrations (CC50) of the tested extracts were all ≥ 224.8 mg/mL, leading to selectivity indices (SI) > 10-fold for most of the extracts. The findings described in this article support the traditional use of the investigated medicinal plants to treat malaria.

Keywords: Antiplasmodial; Cytotoxicity; Ethanol extracts; Plasmodium falciparum
Mapping and assessing the Supreme Court of India’s jurisprudence on sustainable development in light of the SDGs: from Vellore Citizens Welfare Forum to Hanuman Laxman Aroskar
Authors: Müller Florian
Published: May 2023

The 2015 adoption of Agenda 2030 with its 17 Sustainable Development Goals represents a new approach to promoting sustainable development. This article examines the potential openness of the Supreme Court of India to utilize Agenda 2030 rhetoric by looking at the Court’s case law. For this purpose, landmark cases that advanced the Court’s understanding of sustainable development are analyzed in order to identify different angles of interpretation. Against this background, this article argues that the Court’s 2019 ruling in Hanuman Laxman Aroskar v Union of India marks a critical step towards SDG implementation in a domestic context. In light of this recent development, the Court’s jurisprudence on sustainable development is then critically evaluated. The article concludes with an outlook on potential future paths of integrating the SDGs into the Court’s case law.
Eine Geschichte der Gewalt
Authors: Ziegner Kai
Published: May 2023

Im Fokus dieser erzählerisch-analytischen Text-Photo-Montage stehen die sogenannte Wendezeit in Ostdeutschland und die mit diesem radikalen Wandel einhergehenden individuellen wie kollektiven Gewaltausbrüche. Entlang persönlicher Erfahrungen und geschult an literarischen und theoretischen Werken wie Alexander Kluges »Lebensläufe«, Klaus Theweleits »Männer­phantasien« oder W.G. Sebalds Roman »Austerlitz« hinterfragt Kai Ziegner Erinnerung und Zeugenschaft auf ebenso kritische wie experimentelle Weise. Wo und wie dauern autoritäre Regime und Strukturen über Generationen hinweg fort? Welche Narben lassen sich an den Bruchlinien disruptiver Wandlungsprozesse ablesen und wie ist mit – nicht nur historischen – Gemengelagen umzugehen, bei denen die Beteiligten Opfer und Täter zugleich sind? Ziegners künstlerische Forschung zeigt, wie Unzeigbares sichtbar, Mehrdeutiges ­erzählbar und eine differenzierte Aufarbeitung trotz komplizierter gesellschaftlicher Umbrüche möglich ­werden kann.
Exploring Jamaican Primary School Teachers' and Students' Experiences of Project-based Learning in the National Standards Curriculum
Authors: Green-Mitchell Tamekia
Published: May 2023

In an effort to prepare students for the global marketplace, the National Standards Curriculum (NSC) is geared towards equipping them with 21st century skills. Project-based learning, a global trend in education, is seen as the vehicle through which this objective can be realised. The purpose of this qualitative case study was to explore the experiences of four teachers and four students with the use of project-based learning in the NSC in a Jamaican primary school. These teachers and students were purposively selected to provide data on their perceptions of project-based learning; how project-based learning is implemented; and how students describe their project-based learning experiences. Data were collected over a 2-month period through in-depth face-to-face semi-structured interviews with the teachers; 1 focus group interview with the students; observation of teachers’ and students’ project-based learning sessions; and personal documents in the form of students’ journals. The findings revealed that project-based learning improved students’ approaches to projects. Students perceive it to be an effective approach and teachers perceive it to be more effective than other traditional methods. The findings also revealed that teachers encountered challenges in support, training, and resources. Teachers and students also encountered challenges with students’ collaboration skills. Based on the findings, it is recommended that teachers receive adequate training in the use of project-based learning and resources, and that students be taught collaboration skills.
Ensino superior e desenvolvimento urbano da cidade de Montes Claros/MG
Authors: Souza Beirão Éder de , Castro de Carvalho Anne Marielle , Quaresma Oliva Gislene
Published: May 2023

O objetivo do presente estudo foi analisar o papel das Instituições de Ensino Superior (IES) na promoção do desenvolvimento urbano de cidade de Montes Claros/MG. Para tal, foi utilizada uma pesquisa de abordagem qualitativa, classificada quantos aos objetivos em descritiva, quanto aos  meios, um estudo de caso, quanto aos procedimentos, bibliográfica e documental. Os dados foram coletados no Instituto Brasileiro de Geografia e Estatística (IBGE) e o Cadastro Nacional de Cursos e Instituições de Ensino Superior (E-MEC). A partir das análises realizadas foi possível inferir que as IES e os respectivos cursos superiores em funcionamento de Montes Claros/MG influenciaram e continuam influenciando o desenvolvimento econômico, social e, principalmente o urbano da cidade.
Characteristics of the Digital Marketing using IBM SPSS
Statistics
Authors: Asifulla A
Published: May 2023

Digital marketing is the practice of promoting goods and services online by utilizing digital technology, including the internet, handheld devices, search engines, social networking sites, and various other online platforms. Due to the growth of the worldwide web and the widespread use of cellphones and other mo-bile devices, digital marketing has grown in popularity. Through a variety of internet marketing platforms, it gives companies of all sizes the capacity to reach a worldwide audience and target particular de-mographics. Mobile marketing is one of the most popular digital marketing strategies, along with others. Each strategy offers certain advantages and can be utilized to accomplish particular marketing objectives. Digital marketing research is the process of collecting and analyzing data to understand the behavior, preferences, and needs of your target audience in the digital space. It involves the use of various digital tools and techniques to gather information about customer demographics, buying habits, online activities, and response to marketing campaigns. Here are some of the reasons why digital marketing research is important: Identifying and understanding your target audience: Digital marketing research helps you gain a deep understanding of your target audience's demographics, interests, behaviors, and preferences. By knowing your audience better, you can create more effective marketing campaigns that resonate with them. Evaluation preferences: There are different types of customer relationship management (CRM) techniques, such as analytical, collaborative, traditional, digital, sales-based CRM, sales forecasting, post-sale service, loyalty inbound. The Cronbach's alpha reliability result for the overall model is .759, indicating 62% reliability. Based on the literature review, the model with a Cronbach's alpha value above 75% can be considered for analysis. IBM created SPSS Statistics, a statistical program with features for handling data, advanced analytics, multimodal analytics, intelligence for businesses, and criminal investi-gation. After creating it for a long time, IBM bought SPA Inc. in 2009. The latest releases are marketed under the name IBM SPSS Statistics.
Inconsciente filosófico e inconsciente ideológico, o sobre la historicidad en Althusser
Authors: Garrido Violeta
Published: May 2023

Este artículo explora la noción de inconsciente filosófico propuesta por Althusser a finales de los 60, en el marco de su indagación a propósito de las operaciones de explotación y de apropiación del saber llevadas a cabo por la filosofía tradicional respecto del resto de prácticas sociales. Buscando entender qué significación tiene la categoría de historicidad para Althusser, cotejaremos esta idea con otra similar, basada en el programa teórico del profesor español Juan Carlos Rodríguez, quien trabajó ciertos textos literarios a partir de la existencia de un inconsciente ideológico que definiría el alcance de la subjetividad humana en cada etapa histórica.
Número completo
Authors: AAVV
Published: May 2023

Número completo
SAÚDE ORAL E QUALIDADE DE VIDA EM IDOSOS INSTITUCIONALIZADOS
Authors: Gomes Maria , Ramos Olga
Published: May 2023

A Organização Mundial da Saúde inclui saúde oral (SO) no conceito global de saúde e considera-a essencial para a qualidade de vida (QdV). Pretendeu-se avaliar a qualidade de vida relacionada com a SO (QdVRSO) em idosos institucionalizados em Estruturas Residenciais para Pessoas Idosas (ERPIs). Tratou-se de um estudo quantitativo, transversal, correlacional, tendo sido realizadas entrevistas estruturadas fundamentadas num questionário sociodemográfico e na versão portuguesa do Oral Health Impact Profile (OHIP-14-PT) a 151 idosos de 9 ERPIs. Analisaram-se as variáveis sociodemográficas, clínicas e comportamentais, bem como a autoperceção do impacto da SO na QdV. Os principais resultados indicaram um predomínio do sexo feminino e viúvos, com uma média de idades de 84,4 ± 6,4 anos. Da amostra, 65,6% tinham dentes naturais, 31,8% nunca os escovaram e 17,2% nunca frequentaram consultas de SO. O score médio do OHIP-14-PT foi de 18,22; os itens mais pontuados foram a sensação de desconforto no ato de comer e a necessidade de interromper as refeições. Houve diferenças com significado estatístico entre o score total do OHIP-14-PT e a escolaridade dos inquiridos, a autoavaliação da SO e a medida em que a SO afeta a QdV. A amostra autorrelatou um nível moderado de QdVRSO, com maior impacto nas dimensões Dor física e Limitação funcional. O edentulismo e a ausência de uso de prótese dentária são preditores de pior QdVRSO.
El Programa de Gorestación de Tierras Agrícolas en Andalucía
Authors: Prieto Rodríguez Sebastián
Published: May 2023

El propósito de este estudio es ahondar significativamente en uno de los campos de actuación de la gestión pública desde la perspectiva del análisis de Políticas Públicas, intentando contribuir con ello a la necesaria evaluación de las actividades de las administraciones estatales, autonómicas y locales, obteniendo conclusiones sobre su viabilidad y factibilidad y sobre el éxito o fracaso del concreto ámbito que nos proponemos analizar. En nuestro caso la política que pretendemos analizar es la de Forestación de Tierras Agrarias en Andalucía, tomando como modelo significativo la provincia de Huelva.
A review of analytical techniques for determination of metformin: present and perspectives
Authors: Tallam Anil Kumar , Alapati Sahithi , Nuli Mohana Vamsi
Published: May 2023

Metformin is an oral anti-diabetic drug in preventing complications of type 2 diabetes and it is a good first-line therapy for an over-obese with type 2 diabetes, it is currently available in more than 60 countries worldwide. As a result of the importance of this oral hypoglycaemic agent in the treatment of non-insulin-dependent diabetes mellitus, which leads to end-stage renal disease, this work aims to compile the published analytical methods reported so far in the literature for the determination in biological samples and pharmaceutical formulations. This article narrates different techniques like high-performance liquid chromatography. It can be seen that high-performance liquid chromatography methods have been used extensively. Thus, this paper will help in the selection and development of proper analytical methodologies estimation of Metformin to achieve satisfactory results.
Transition to Anterior Approach in Primary Total Hip Arthroplasty - Learning Curve Complications
Authors: Maizo Leopoldo J
Published: May 2023

Introduction: The recent emphasis on tissue preservation and minimally invasive outpatient joint replacements has resulted in a significant increase in the use of Direct Anterior Approach (DAA) total hip arthroplasty. It has gained interest recently because of its faster short-term recovery, despite concerns about increased complications and operative time, especially during the learning curve period. The primary objective of this study was to determine whether complications of transitioning to a direct anterior approach for primary total hip arthroplasty may impair patient safety.

Methods: A total of 51 primary hip arthroplasties were performed in 44 patients with the direct anterior approach technique: 37 unilateral arthroplasties and 7 bilateral arthroplasties, during the first 3 years of the learning curve of this technique and their complications were analyzed.

Results: No patient had severe complications or surgical reinterventions associated to transoperative complications. Tearing of the tensor fascia lata muscle was on average the most frequent complication (19.6%), followed by skin lesions (17.6%), difficulty in implant reduction (9.8%) and fractures of the greater trochanter (7.8%). No severe complications occurred.

Conclusion: This study demonstrates that the transition to the direct anterior approach can be done safely without a significant complication rate. These complications are usually associated with the use of inadequate special instruments, inadequate patient selection and the knowledge of maneuvers of the surgeon and his team acquired during the experience and development of the technique. Even so, they do not require additional treatment, which allows us to conclude that this technique is reproducible and can be safely transitioned.
Metaphysical Portrait of Melitopol in the Symbolic Circle "Honey -Milk -Water"(The Problem of Symbolic Resources in Tourist Activities)
Authors: Oleksenko Roman , Bortnykov Yevheni , Kryvolapov Eduard , Bilohur Vlada , Kliuienko Eduard , Radchenko Liudmyla
Published: May 2023

The purposeof the proposed research is to create a metaphysical portrait sketch of Melitopol in the symbolic circle "honey -milk -water" in the context of attracting symbolic resources problem in tourism.In an intensive way, and following thestrengtheningof homo viator phenomenon in the global world, research in the touristic field and philosophy of tourism are increasingly turning their attention to the "internal resource", including in this concept, in addition to natural and cultural-historical, also symbolic resource. The work uses such methods as dialectical and metaphysical, the principle of comprehensiveness of research, the general logical method, and other methods of scientific research. Tourist legend as an applied direction can become an effective marketing mechanism, as a result of which it is possible, using a symbolic resources variety and tools, to create humanitarian and social development perspectives, agreed and identified through analysis of mythological structures and conceptual shells for harmonious and effective development of these territories. In this aspect, tourism as oneof the mass culture branches will produce tourist flows directed to previously elaboratedterritorial brands.
Polvo de moringa como floculante en agua cruda para remoción de bacterias de importancia en salud pública
Authors: García-León Israel , Hernández-Mendoza José Luis , Lizarazo-Ortega Cristian , Quiroz-Velásquez Jesús Di Carlo , Bocanegra-Alonso Anabel , Estrada-Ortiz Karla Selene
Published: May 2023

La floculación es un método de precipitación que retiene los sólidos suspendidos, liberando aguas grises con una carga orgánica menor. El polvo de moringa tiene un efecto floculante y en este caso se evaluó su efecto entre las poblaciones bacterianas, especialmente las de importancia en salud pública. El estudio se realizó en la Ciudad de Reynosa, Tamaulipas, que tiene dos canales que conducen agua para uso urbano y agrícola. Cuatro sitios fueron muestreados, dos en la ciudad y los otros en la periferia de la ciudad. Las muestras de agua recolectadas en cada punto fueron divididas en dos. Un lote fueron los controles y al otro se les agregó polvo de moringa. Posteriormente, en todos los lotes se realizó una extracción de ADN para análisis metagenómico de la biota presente. Los resultados mostraron que hay un efecto floculante en las muestras de agua y que con el tratamiento se alteran las poblaciones microbianas; finalmente, se observa que las poblaciones de bacterias de importancia en salud pública no son retiradas con el tratamiento.
Presión arterial en escolares del estado Táchira - Venezuela y su asociación con el índice de masa corporal
Authors: Molina Albarracín Saravik , Lucero Guerrero Erwin Fabián , Quintero Hernández Royma Ligeya
Published: May 2023

Objetivos: Evaluar la presión arterial (PA) en escolares del estado Táchira e investigar su asociación con el índice de masa corporal (IMC), dado que constituyen factores de riesgo cardiovascular. Métodos: Se estudiaron 84 escolares, de 9,05±1,36 años, 57,14% femeninas, 42,86% masculinos. Se tomó PA, medidas antropométricas; se calculó IMC. Considerando sobrepeso IMC >p90, obesidad >p97 según curvas venezolanas; pre-hipertensión ≥p90, hipertensión 1 ≥p95, usando valores adaptados del NHBPEP. Resultados: 3,6% presentó pre-hipertensión sistólica, 4,8% PA diastólica elevada (3,6% pre- hipertensión y 1,2% hipertensión estadio 1). Hubo correlación positiva y significativa entre IMC y PA (p=0,0001). Se observó PA ≥p90 en 28,6% de los niños obesos versus 4,8% de los normopeso. No hubo asociación del IMC y la PA con género ni edad. Conclusiones: Se encontró PA elevada en escolares, demostrándose asociación estadística entre PA alta y exceso de IMC, ambas ocasionan daño orgánico, por ende la importancia de su evaluación, detección e intervención precoz.
The Impact of Digitalization on the Sustainable Development of Ukraine: COVID-19 and War Challenges for Higher Education
Authors: Marhasova Viktoriia , Kholiavko Nataliia , Popelo Olha , Krylov Denys , Zhavoronok Artur , Biliaze Oleksii
Published: May 2023

Higher Education plays an important role in ensuring the Sustainable Development of the countries. The purpose of the article is to systematize scientific approaches to the study of the impact of digitalization on ensuring the Sustainable Development of Ukraine and its regions in the conditions of modern COVID-19 and military challenges. The methodological basis of this study is a systematic approach, as well as general and special scientific research methods, namely: systematic analysis and generalization, grouping, induction and deduction, abstract-logical, scientific abstraction and modeling, graphic methods. The authors verified that Higher Education has a tangible positive impact on the dynamics of Sustainable Development of Ukraine and its regions. First of all, this influence is carried out through the educational and research activities of universities. The article emphasizes that it was digitalization that allowed universities to maintain their competitive positions in the educational services market in the conditions of COVID-19 and war challenges.
Business Strategy Transformation: The Impact of Global Digitalization and COVID-19 Pandemic Factors
Authors: Ivanova Nataliia , Nazarko Svitlana , Denysenko Tetana , Kublitska Olena , Kononenko Serhii
Published: May 2023

The article aims to consider the business strategy transformation process in the context of global digitalization and the COVID-19 pandemic in business and the economy. To achieve the goal, the authors analyzed the notions of "IT strategy", "digital strategy" and "digital transformation strategy" and established their hierarchy; the key features of the strategy in the digital world are identified, namely: risk as the basis for development, people as the main business value and the formation of the right mindset of participants in digital transformation; the process of implementing the digital transformation strategy in the company is considered. The objective of the article was achieved through a review of the literature and the use of scientific methods, namely: comparative analysis, synthesis, and historical and logical methods. The results obtained contribute to the understanding of scientists and professionals about the development management process in the digital world.