bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of the Possibilities of Reducing the Energy Intensity of Adsorption Processes with High Requirements for the Moisture Content of Compressed Air
Authors: Ripol'-Saragosi Tat'yana , Vorob'ev Aleksandr , Sobolev Aleksandr , Cybul'skiy Artem
Published: December 2023

Purpose: Study of the possibility of reducing the energy intensity of adsorption processes with high requirements for the moisture content of compressed air. Results: It has been shown that the molecular sieve RS-144M has the lowest weight among all the adsorbents represented due to its low density, which makes it possible to reduce the weight of the adsorption unit; the smallest volume and height of adsorption filling in the column have zeolites NaA and Ka-CO, followed by molecular sieves; due to the release of the molecular sieve RS-144M in the form of a powder the size of the working pores of 3Å, it has a low bulk density and the smallest intergranular spaces, which provides a low value of porosity of the granules, a total of 8.3% of the total fill volume. Practical significance: The use of molecular sieves produced on the basis of zeolite helps to reduce the energy capacity of the compressed air drying process. The most effective is the molecular sieve RS-144M. It allows you to dry compressed air to meet the requirements of the highest moisture purity classes, while guaranteeing the lowest energy consumption. The remaining adsorbents will also allow the compressed air to be dried to the desired purity grade, but will have an energy consumption greater than that of the RS-144M, making their use not always expedient.
El proceso por memoria, verdad y justicia en Argentina como una ecología de saberes
Authors: Marchiaro Fausto
Published: December 2023

El artículo propone analizar el proceso de construcción histórica de memoria, verdad y justicia en Argentina a través de la categoría “ecología de saberes” elaborado por Boaventura de Sousa Santos. Por medio de un estudio cronológico en el cual se busca resaltar la amalgama de militancias, estrategias y consignas elaboradas por los organismos de derechos humanos a lo largo de las distintas vicisitudes históricas del país (años 1976-2023), se enfatiza en la dimensión epistémica y emancipadora de las resistencias encaradas por los organismos. Por último, se reflexiona acerca de las potencialidades de un uso contrahegemónico de la memoria en el contexto del Sur Global.
El rol de las mujeres y sus organizaciones como constructoras de paz y como defensoras de derechos humanos a través de iniciativas estéticas, artísticas y vivenciales en Colombia
Authors: Soriano Ruiz Laura
Published: December 2023

Este artículo realiza un análisis del papel clave de las mujeres y sus organizaciones como constructoras de paz y como defensoras de derechos humanos en el marco de la violencia armada en Colombia, resaltando la utilización de las practicas estéticas, artísticas y vivenciales (PEAV), como parte de su estrategia de trabajo y como herramientas para la construcción de paz, el empoderamiento de las mujeres y la defensa de los derechos humanos. A partir de la literatura feminista y la investigación sobre la participación de las mujeres en los procesos de construcción de paz, este estudio pretende destacar el uso de las PEAV como estrategias eficaces para la memoria histórica, promover la reconciliación, la cultura de paz y fomentar el empoderamiento de las mujeres en Colombia. Utilizando un enfoque multidisciplinar, esta investigación examina las praxis entorno del uso de las PEAV, su presencia y diversidad entre las principales organizaciones feministas y de mujeres a nivel nacional que las utilizan para la construcción de paz y el empoderamiento.
Teil I: Endogene Dynamiken und Geochronologie
Authors: Schellmann Gerhard
Published: December 2023

Der vorliegende Band ist der erste Teil eines Lernskriptes zur Einführung in die Geomorphologie, Geochronologie und Bodengeographie. Inhaltlich behandelt er ausgewählte Grundlagen der allgemeinen Geologie vom Schalenbau der Erde bis hin zu Vulkanismus und Erdbeben sowie zudem einige relative und numerische Methoden der Altersbestimmung (Geochronologie) vor allem in der jüngeren Erdgeschichte des Quartärs. In einem Exkurs wird unter dem Aspekt Oberflächengesteine eine knappe Einführung in das Thema „Löss und Paläoböden als Umweltarchiv in Deutschland“ gegeben. Zielgruppe des Lernskriptes sind Lehramt- und Bachelor-Studierende der physischen Geographie, aber durchaus auch der Quartärgeologie und Archäologie. Das Skript soll kein Lehrbuch sein, sondern durch die gestellten Fragen und Aufgaben motivieren, Lehrbücher in das extrem wichtige Selbststudium stärker einzubinden.
O segundo ciclo da mineração em Minas Gerais a importância de processos de inovação em rede para a destinação de rejeitos da mineração de ferro
Authors: Carmignano Ottavio Raul Domenico Riberti , Lago Rochel Montero , Santos Ulisses Pereira dos
Published: December 2023

Minas Gerais tem um enorme desafio que é o Segundo Ciclo da Mneração relacionado com a destinação de bilhões de toneladas de rejeitos da mineração de ferro que existem atualmente e que ficarão no estado pelos próximos séculos. Neste contexto, a inovação é um elemento fundamental para encontrar-se alternativas técnica e economicamente viáveis. Neste trabalho, avalia-se o atual sistema setorial de inovação da mineração em Minas Gerais e a importância de redes colaborativas para gerar as inovações necessárias para a destinação de rejeitos. O trabalho descreve uma iniciativa única envolvendo governo-universidade-indústria que foi a criação da Plataforma R3 Mineral, uma rede colaborativa para a mineração de ferro para o desenvolvimento de soluções para a destinação de rejeitos após o acidente ocorrido em Mariana, em 2015. É apresentada também uma comparação com outras duas redes colaborativas internacionais da mineração, AMIRA(Austrália) e CEMI(Canadá).
Capacidades relacionais em programas de aceleração corporativa com startups
Authors: Yazbek Juliana Diniz da Silveira , Alves Fernanda Salvador
Published: December 2023

Grandes empresas buscam inovação fora das fronteiras organizacionais nas parcerias com startups. Programas de Aceleração Corporativas (PACs) representam uma recente e emergente forma de se relacionar com startups. Contudo, além de vontade, é preciso ter capacidades relacionais (CRs) para interagir com outras empresas, coordenar competências e combinar conhecimentos. Este estudo investiga a presença das CRs nos PACs. Para isso, realizou-se uma pesquisa qualitativa com dois PACs de indústrias brasileiras. Os resultados revelam a importância das CRs para identificar oportunidades, combinar e gerenciar recursos, adaptar-se às necessidades dos parceiros, aprender com (e junto) a eles, comunicar- se de forma transparente e desenvolver inovações colaborativas. Este estudo abre novas oportunidades de pesquisa ao utilizar a lente das CRs para analisar aspectos da cooperação nos programas em questão. De forma prática, as descobertas podem auxiliar gestores na cooperação com startups, assim como empreendedores de startups que queiram trilhar parcerias com grandes corporações.
A especialização geográfica e setorial das exportações brasileiras segundo o comércio em valor adicionado
Authors: Castilho Marta dos Reis , Costa Leonardo Thuler , Costa Kaio Vital da
Published: December 2023

Esse estudo aprofunda a análise da inserção do Brasil nas chamadas Cadeias Globais de Valor (CGV) ao examinar o perfil geográfico e setorial das exportações com base na metodologia de decomposição das exportações brutas. Essa metodologia decompõe as exportações brutas desagregadas geográfica e setorialmente em diversos componentes, que possibilitam uma melhor identificação dos fluxos de valor adicionado doméstico e estrangeiro das exportações dos países. Usando-se os dados da base WIOD para o período 2000-2014, examina-se a especialização geográfica e setorial das exportações brasileiras.  Em seguida, analisa-se a intensidade e o perfil da especialização comercial brasileira para as exportações em valor adicionado para seus três principais parceiros comerciais (China, EUA e UE). A utilização desse instrumental analítico é de particular interesse para o Brasil, tendo em vista que seu padrão de comércio difere significativamente segundo os seus parceiros.
Orquestrando parques tecnológicos como Política Pública para o desenvolvimento econômico regional
Authors: Serra Maurício Aguiar
Published: December 2023

Visando acelerar a complexidade da economia do Estado de São Paulo, o Sistema Paulista de Ambientes de Inovação (SPAI) foi concebido para orquestrar a implantação de parques tecnológicos em alguns dos seus municípios. Após praticamente uma década de existência, esta política regional começa a ser questionada no que diz respeito ao desempenho dos seus parques, que deveriam gerar impactos positivos nas regiões onde se localizam. A origem destes questionamentos está no divórcio entre o arcabouço e o desenho institucional do SPAI e a lógica do modelo da política de parques tecnológicos. O principal objetivo deste artigo é analisar a forma pela qual o SPAI tem orquestrado os incentivos para que os parques tecnológicos paulistas promovam o desenvolvimento regional. Para tanto, a metodologia empregada neste artigo combinou pesquisa qualitativa e a construção de um modelo lógico de parques tecnológicos.
Lavado peritoneal laparoscópico en pacientes con diverticulitis aguda Hinchey III atendidos en una clínica privada de Lima
Authors: Túpac-Sulca Oscar Edú , Chavez-Cruz Carlos Alberto , Borda-Luque Giuliano Manuel , Li-Valencia Miguel Roberto
Published: December 2023

La diverticulosis es la presencia de divertículos en el tránsito intestinal, diverticulitis es la inflamación de los divertículos y ocurre en menos del 5% de pacientes con diverticulosis. El tratamiento quirúrgico de la diverticulitis aguda se aplica en los casos complicados. Tradicionalmente la operación de Hartmann es el procedimiento estándar en los casos de Diverticulitis aguda Hinchey III y IV, actualmente se recomienda individualizar el tratamiento quirúrgico en los casos de peritonitis purulenta no fecaloidea siendo el lavado peritoneal laparoscópico una opción factible. Objetivo: Describir los resultados del tratamiento quirúrgico de 4 pacientes con el diagnóstico de diverticulitis aguda Hinchey III sometidos al Lavado peritoneal en un centro privado. Material y métodos: Estudio descriptivo retrospectivo tipo serie de casos. Se recopiló información de historias clínicas para la descripción de los casos. Resultados: En los 4 pacientes intervenidos mediante el Lavado peritoneal laparoscópico, ninguno tuvo complicaciones postoperatorias ni mortalidad. Conclusiones: A juicio de los autores los beneficios del lavado peritoneal laparoscópico repercuten en una adecuada evolución postquirúrgica y generan calidad de vida en los pacientes intervenidos.
Hubungan Literasi Kesehatan Mental dengan Distres Psikologis pada Mahasiswa Non-Kesehatan
Authors: Fauzi Aisha , Suminar Dewi Retno
Published: December 2023

Permasalahan kesehatan mental yang muncul pada mahasiswa bidang non-kesehatan terutama bidang teknik menjadi sebuah hal yang perlu diperhatikan lebih lanjut. Hal tersebut juga diiringi dengan tingkat literasi kesehatan mental mahasiswa teknik. Penelitian ini bertujuan untuk mengetahui apakah terdapat hubungan antara literasi kesehatan mental dengan distres psikologis pada mahasiswa teknik yaitu mahasiswa S1 Institut Teknologi Sepuluh Nopember. Alat ukur yang digunakan untuk mengukur literasi kesehatan mental adalah skala Mental Health Literacy dan alat ukur yang digunakan untuk mengukur distres psikologis adalah skala Kessler Psychological Distress (K10). Hasil analisis data penelitian diperoleh nilai korelasi antara literasi kesehatan mental dan distres psikologis sebesar 0,838 (p > 0,05). Literasi kesehatan mental tidak memiliki hubungan dengan distres psikologis sehingga terdapat kemungkinan adanya variabel lain yang terlibat.
Exploring the Nexus Between E-Banking, Credit Provision, and Shareholder Dividends in Regional Development Banks
Authors: Yetti Susfa , Safelia Nela , Prasetio Primadi
Published: December 2023

This exploration aims to test and dissect factors that impact bank fiscal performance and their impact on shareholder tips. The variables used are E-Banking, credit handed as an independent variable, and ROE as a dependent variable. This exploration also looks at the influence of ROE on shareholder tips proxied by the DPR. This exploration was conducted in all BPDs in Sumatra, there are 8 BPDs registered with the OJK during the 2019 – 2022 period. The exploration system used was descriptive exploration with a quantitative exploration approach. Data recycling analysis uses multiple and simple retrogression analyses. The exploration results show that E-Banking and the credit handed have a significant influence on ROE, both concertedly and collectively. Meanwhile, fiscal performance (ROE) also influences shareholder tips (DPR).
Structural Variations of Prions and Prion-Like Proteins Associated with Neurodegeneration
Authors: Christensen Carter Sky , Li Wenshu , Yu Danyang , Li Henry James
Published: December 2023

Neurodegeneration is becoming one of the leading causes of death worldwide as the population expands and grows older. There is a growing desire to understand the mechanisms behind prion proteins as well as the prion-like proteins that make up neurodegenerative diseases (NDs) including Alzheimer’s Disease (AD). Both amyloid β (Aβ) and hyperphosphorylated tau (p-tau) proteins behave in ways similar to that of the infectious form of the prion protein, PrPSc, such as aggregating, seeding, and replicating under not yet fully understood mechanisms, thus the designation of prion-like. This review aims to highlight the shared mechanisms between prion-like proteins and prion proteins in the structural variations associated with aggregation and disease development. These mechanisms are largely focusing on the dysregulation of protein homeostasis, self-replication, and protein aggregation, and how this knowledge could contribute to diagnoses and treatments for the given NDs.
Fabrication and Characterization of 2D Nonlinear Structures Based on DAST Nanocrystals and SU-8 Photoresist for Terahertz Application
Authors: Pogosian Tamara , Ledoux-Rak Isabelle , Denisyuk Igor , Fokina Maria , Lai Ngoc Diep
Published: December 2023

We demonstrate a method for realization of highly nonlinear optical 4-(4-dimethylaminostyryl)-1-methylpyridinium tosylate (DAST) two-dimensional structures by a double step technique. The desired polymeric structures have been first fabricated by using the multiple-exposure of two-beam interference technique, and the DAST nanoscrystals were then prepared inside the air-voids of these photoresist templates, resulting in nonlinear periodic structures. The nonlinear properties were characterized by optical and scanning microscopies, as well as by second-harmonic generation technique. This nonlinear modulation is very promising for the enhancement nonlinear conversion rates, such as terahertz generation, by using the quasi-phase matching technique.
EXAMINING SOFTWARE QUALITY CONCEPT: BUSINESS ANALYSIS PERSPECTIVE
Authors: Gobov Denys , Zuieva Oleksandra
Published: December 2023

Software quality is a critical aspect of software development that significantly impacts business performance and customer satisfaction. However, defining software quality can be challenging, as different sources provide various definitions and perspectives. The article presents a literature review of software quality, acknowledging an ongoing debate over the years regarding the definition of software quality and the methods used for its assessment. Among all the different ideas about software quality, the article highlights key concepts that are crucial in understanding software quality: meeting requirements, satisfying users, using software features, and spotting defects. The article also checks out international standards like ISO/IEC 25010:2011 and ISO/IEC 5055:2021, introducing terms such as "Quality in use" and "Structural Quality." Unveiling a tripartite perspective elucidated in international standards—internal quality, external quality, and quality in use - the article underscores the intricate interplay between subjectivity and objectivity. The subjective dimension, influenced by user perception and contextual factors, is juxtaposed with more objective criteria such as conformance to requirements and the absence of defects. The standards provide helpful perspectives, but the human side of things, like user feelings and specific contexts, makes finding a universal definition tricky. The pivotal role of business analysis and requirements engineering in ensuring software quality is underscored. Business requirements, stakeholder needs, and the quality of functional and non-functional requirements emerge as integral components. The article argues that software quality is intricately tied to the quality of its requirements, presenting a dual perspective: compliance with quality criteria and alignment with stakeholders' expectations and business goals. Practical software quality assessment is built upon the foundational understanding of contextual nuances, user needs, and operational conditions, all discerned through business analysis.
SIMULATION OF THE PROPAGATION OF A PLANE ELECTROMAGNETIC WAVE IN AN INHOMOGENEOUS NONABSORBING MEDIUM
Authors: Mazmanishvili Oleksandr , Sydorenko Ganna
Published: December 2023

Analytical solutions of the Ishimaru's parabolic equation for the coherence function of the electromagnetic field, which describe the temporal properties of the pulse at the output of a heterogeneous non-dissipative medium, are considered. A generalization of the approach used in the Ishimaru model to describe the time evolution of a monochromatic electromagnetic pulse enveloping in homogeneous non-dissipative media is obtained for the case of non-homogeneous non-dissipative media. Thus, an attempt was made to take into account the influence of the heterogeneity of the medium on the shape of the resulting pulse. When solving the given problem, the difficulties associated with the calculation of the continuous integral arising in the space of diffusion trajectories were overcome. This made it possible to obtain an explicit expression for the Green's function of the task and to build a computational algorithm based on which a number of numerous experiments were conducted. The analysis of the work was carried out based on the apparatus of quadratic integral functionals based on the solutions of differential stochastic equations. In the paper, the invariant temporal properties of the envelope of monochromatic electromagnetic pulses recorded after passing through a flat layer of a scattering heterogeneous medium, i.e., properties that remain unchanged when the parameters of the medium vary, in particular, the distribution of the concentration of scattering centers. The dynamics of the formation of time plumes of the scattered wave, in which the tail part is located in the peripheral time area, were analyzed. When propagating at the speed of transformation of the wave front, it reflects the appearance of the layers of the scattering region and its longitudinal shape. It is noted that the development of the proposed approximation approach to the processes affecting the time delay of electromagnetic pulses can be the accounting for the attenuation of radiation during its propagation in an inhomogeneous absorbing medium.
STUDY OF THE PRINCIPLES OF BUSINESS LAW IN THE MODERN BUSINESS SYSTEM
Authors: Tkachev Maxim , Gariaieva Ganna
Published: December 2023

The article examines the principles (theoretical-methodological and applied principles) of the economic legal personality of enterprises of all forms of ownership, substantiates the theoretical provisions regarding the legal provision of their economic independence in new economic conditions, and formulates relevant proposals for improving the legislation. On the basis of the provisions of the Constitution of Ukraine and the Economic Procedure Code of Ukraine, the content of the main principles of economic litigation of Ukraine is disclosed as general guidelines that determine the nature of the court's activity regarding the implementation of judicial proceedings in economic relations and the legal regulation of economic relations. Each of the latest principles of economic law is revealed in detail. The global and national experience of preserving human rights is analyzed and highlighted in terms of understanding the content of these principles. The authors come to the conclusion that, in general, the principles of economic law enshrined in the Economic Procedural Code of Ukraine correspond to the basic constitutional principles of the judiciary, although the norms regarding them require further improvement both by harmonizing their names with the names used in the Constitution of Ukraine and by more fully disclosing their content . In particular, attention is drawn to those problems in the legislative consolidation of the main principles of economic law that were not resolved in the Economic Procedural Code of Ukraine (in particular, the content of the principle of the rule of law was not disclosed, the principle of equality of all participants in the legal process before the law and the court was not extended to natural persons - entrepreneurs, the equality of the parties is not recognized as an independent principle, the content of the principle of the bindingness of a court decision has been narrowed, etc.).
ANALYSIS OF MODERN METHODS AND APPROACHES TO RISK MANAGEMENT AT THE ENTERPRISE
Authors: Shmatko  Nataliia , Karminska-Bielobrova Maryna
Published: December 2023

The article states that increasing the effectiveness of the management system requires the implementation of preventive actions based on planning, analysis and improvement of activities related to risks and opportunities, it is emphasized that the main purpose of risk management is to coordinate the actions of management to improve financial results and creation of such conditions so that the enterprise does not exceed permissible losses. An analysis of modern methods and approaches for successful risk management and identification of features of the formation of the risk management system was carried out. The risk management system created at the enterprise must manage risks to achieve the set goals and objectives, while applying the concepts of a risk-oriented approach, which is implemented in the need to identify risks during the planning of the enterprise's activities. The risk management system consists in research and analysis of the probability of occurrence of a negative event or risk, its minimization or elimination. An important advantage of this standard is the description of the 31st method of risk assessment in terms of their scope, advantages and disadvantages of each of them. It is worth noting that this standard is the most common in the risk management practice of Ukrainian enterprises. The main methods of the standard are the possibility of obtaining quantitative initial data, the uncertainty of the assessment results. At the operational stage, it is important to use methods with a high degree of certainty of assessment results and to have quantitative information about assessment objects. Risk management aims to improve the chances of achieving the project's objectives by eliminating and minimizing risks to increase the project's chances of success. At the same time, the occurrence of serious risks that can lead to the failure of the project should be minimized as much as possible. It was determined that in professional risk management it is necessary to regularly check the planned and actual state. This includes reassessing the likelihood of risk occurrence and adjusting the company's measures and plans. Particular attention should be paid to establishing a list of types of influence and ways of modifying risk factors that are permissible for the risk owner when building a risk management system.
INITIATIVE IS THE BASIS FOR BUSINESS SUCCESS IN THE KNOWLEDGE ECONOMY
Authors: Linkova Elena
Published: December 2023

The paper analyzes the challenges of the knowledge economy to management: globalization, internationalization, informational and intellectualize of labor, integration, migration, ecological. The formation of values is related to human emotions, not rational ideas, that is, they are formed with motivational subsystems (material motivation, immaterial motivation, control of key indicators or concentration on achieving goals). The interpretation of the concept of value management as an alignment of the development priorities of society as a whole with business priorities (customers, owners, managers and staff) has been deepened. Value management allows you to effectively distribute the efforts of the company and minimize conflicts of priorities at the level of contradictions. Priorities form the criteria basis for managerial decision-making by managers at all levels of the enterprise hierarchy. The features of value management are structured: continuous change management (technology, management, values, needs, culture, structure, efficiency, image, social responsibility, environmental management); initiating business changes through product renewal (for international competition and creating sustainable competitive advantages). The features of value management in order to increase the competitiveness of business have been studied: the study of social needs; effective partnership agreements in the market; use of opportunities of information technologies; training of top managers in the concept of value management; development of corporate culture; team leadership; change management; professional support of structural changes. The components of management for the formation of conditions for promoting the manifestation of initiative by specialists at all stages of value management are identified: selection of personnel (making team decisions); training (maximum program vitalization); adaptation (staff rotation); motivation (involvement in the implementation of social tasks); control (systematization and individualization of results); advanced training (coordination of values). The use of value management in practical management will allow: to ensure the competitiveness of the business; increase the productivity of specialists who perform intellectual tasks; optimize the use of resources; constantly innovate; improve staff motivation; effectively implement social responsibility activities of business. The issues of further research are indicated: the study of risk management mechanisms for business in the event of dismissal of personnel.
Emergency Food Support Preference and Usage During COVID-19: A Neighborhood Study of Low-Income Black Mothers? Use of School-Based Food Distribution and P-EBT
Authors: Fern Simon E. , Kimbro Rachel T. , Hill Marbella Eboni , Hughes Cayce C.
Published: December 2023

COVID-19 disrupted families’ food supply. Based on in-depth interviews with 45 Black low-income mothers of young children in an underserved Houston, Texas, neighborhood from April 2020 to June 2021, we compared two aid programs—Pandemic Electronic Benefits Transfer cash assistance and in-kind food distributions. We found that mothers preferred cash assistance for boosting existing food strategies, while food distributions presented new challenges for already burdened families. We argue that food assistance interventions can be more successful and equitable by integrating service user context, needs, and preferences. (Am J Public Health. 2023;113(S3):S227–S230. https://doi.org/10.2105/AJPH.2023.307458 )
Association of the COVID-19 Pandemic With Women, Infants, and Children (WIC) Receipt Among Pregnant Individuals: United States, 2016–2022
Authors: Busch Savannah , Andersen Jennifer A. , Willis Don E. , McElfish Pearl Anna , Reece Sharon , DuBois Dominique , Brown Clare C.
Published: December 2023

Objectives. To evaluate the effect of COVID-19 on Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) receipt among pregnant individuals overall and by race/ethnicity.

Methods. We measured changes in WIC receipt among Medicaid-covered births (n = 10 484 697) from the US National Center for Health Statistics Natality Files (2016–2022). Our interrupted time series logistic model included a continuous monthly variable, a binary post-COVID variable, and a continuous slope shift variable. We additionally fit separate models for each race/ethnicity relative to White individuals, using interaction terms between the time series variables and race/ethnicity.

Results. We found decreases in WIC receipt (adjusted odds ratio [AOR] = 0.899; P < .001) from before COVID (66.6%) to after COVID (57.9%). There were larger post-COVID decreases for American Indian/Alaska Native (AOR = 0.850; P < .001), Native Hawaiian/Other Pacific Islander (AOR = 0.877; P = .003), Black (AOR = 0.974; P < .001), and Hispanic (AOR = 0.972, P < .001) individuals relative to White individuals.

Conclusions. The greater reductions in WIC receipt among minoritized individuals highlights a pathway through which the pandemic may have widened gaps in already disparate maternal and infant health.

Public Health Implications. Continued efforts to increase WIC utilization are needed overall and among minoritized populations. (Am J Public Health. 2023;113(S3):S240–S247. https://doi.org/10.2105/AJPH.2023.307525 )
NEW QUANTITATIVE DESCRIPTORS (SHAPE AND MACROBORING) OF BIOGENIC NODULES: EXAMPLES FROM THE LESSER ANTILLES AND NEW ZEALAND
Authors: CARON VINCENT , DESCHAMPS BRICE , ROBERT-DUARTE ALEXANDRE , BAILLEUL JULIEN
Published: December 2023

Encrusting (Ei), Macroboring (Mi), and Dissymmetry (Di) indices are proposed as quantitative descriptors of biogenic nodules. (Ei) measures the amount of encrustation, (Mi) the contribution of boring traces affecting the internal structure of nodules, and (Di) the regularity of the biogenic accretion around the nucleus. The latter has been used to construct a classification scheme of possible shapes for encrustations. Raw data to calculate the indices were obtained from numerical treatments of digitized photographs of nodule cross-sections. The morphometric (Di) and taphonomic (Ei and Mi) indices have been calculated for carbonate nodules from subtidal temperate and tropical settings in New Zealand (Flat Point Beach) and in the Caribbean (St. Bartholomew Island), respectively. Results for nucleated rhodoliths collected from shallow high-energy settings in these two climatic settings show that their morphometric and taphonomic characters are not species-specific (Lithoporella/Mastophora rhodoliths from St. Barth, and Lithothamnion-Sporolithon rhodoliths from New Zealand), but depend instead on hydrodynamic conditions and on the original shape of nuclei. Acervulinid macroids sampled in deeper waters (28 m) off St. Barth are nucleus-free and have a Macroboring index (Mi) significantly higher than that of rhodoliths from shallower environments, due to discontinuous influence of waves and currents, and low sedimentation rates.

The quantitative descriptors proposed here might: (1) complement the characterization of biogenic nodules in specific depositional environments; (2) aid in hydrodynamic and paleoenvironmental reconstructions of biogenic nodule-bearing deposits; and (3) constitute valuable tools in future comparative studies.
Congruências numéricas: cinco problemas resolvidos propostos para olimpíadas internacionais de matemática
Authors: López Linares Juan , Bruno-Alfonso Alexys , Barbosa Grazielle Feliciani
Published: December 2023

As congruências numéricas, também chamadas de Aritmética do relógio ou dos restos, são um assunto usualmente omitido nos programas de Ensino Médio no Brasil. Neste artigo são discutidos cinco problemas propostos para a Olimpíada Internacional de Matemática. Os problemas investigam a divisibilidade por $7$ dos números $2^n-1$ e $2^n+1$, uma equação diofantina não linear, uma sequência em que cada número é encontrado pela soma dos dígitos do anterior, números com três últimos dígitos iguais e uma recorrência com quadrados perfeitos. São utilizadas congruências módulo $2$, $3$, $5$, $7$, $8$, $9$, $125$ e $1000$ e a fórmula do binômio de Newton.
estudo da equação soma-produto de números naturais
Authors: Carvalho Fernando Soares de , Costa Eudes Antonio
Published: December 2023

Este trabalho apresenta um estudo sobre uma equação que relaciona a soma e o produto de números naturais. Como encontrar soluções para essa equação pode ser desafiador, focamos em três casos particulares para simplificar a análise e explorar vários métodos para encontrar soluções.
Os caminhos das raízes da função quadrática
Authors: Yamaoka Luís Cláudio
Published: December 2023

Neste artigo fixamos dois coeficientes reais e variamos o coeficiente real remanescente da função quadrática (função polinomial do segundo grau) para obter os caminhos descritos pelas duas raízes da função no plano complexo. Tais caminhos repousam em circunferências cujos centros estão no eixo real, no eixo real, em paralelas ao eixo imaginário ou no eixo imaginário, e na origem. Nas situações pertinentes, as Figuras especificam qual ou quais pontos devem ser excluídos das circunferências e das retas. Comentários também acompanham as Figuras. Diferenciamos os sentidos dos percursos das raizes reais quando da existência ou não de raízes complexas não reais. Determinamos as situações nas quais as raízes duplas aparecem. Determinamos o(s) ponto(s) aderente(s) comum(ns) aos dois conjuntos formados pelos pontos dos caminhos de ambas as raízes. Usamos Pré-Cálculo, Cálculo de uma variável real e um pouco de Análise para provar esses resultados.
A generalização da forma matricial híbrida das sequências de Leonardo, Padovan, Perrin e Narayana
Authors: Vieira Renata Passos Machado , Mangueira Milena Carolina dos Santos , Alves Francisco Regis Vieira , Catarino Paula Maria Machado Cruz
Published: December 2023

A partir do conjunto dos números híbridos e das sequências Leonardo, Padovan, Perrin e Narayana, o presente artigo tem como objetivo apresentar as formas matriciais híbridas destas sequências lineares, bem como suas matrizes para índices inteiros não positivos. Todos os resultados obtidos foram demonstrados pelo princípio de indução matemática e, para trabalhos futuros, é incentivado a exploração desta investigação com outros conteúdos matemáticos.
Deep history of cultural and linguistic evolution among Central African hunter-gatherers
Authors: Padilla-Iglesias Cecilia , Blanco-Portillo Javier , Pricop Bogdan , Ioannidis Alexander , Bickel Balthasar , Manica Andrea , Vinicius Lucio , Migliano Andrea
Published: December 2023

Human evolutionary history in Central Africa reflects a deep history of population connectivity. However, Central African hunter-gatherers (CAHGs) currently speak languages acquired from their neighbouring farmers. Hence it remains unclear which aspects of CAHG cultural diversity results from long-term evolution preceding agriculture, and which reflect borrowing from farmers. Based on musical instruments, foraging tools, specialised vocabulary, and genome-wide data from 10 CAHG populations, we revealed evidence of large-scale cultural interconnectivity among CAHGs before and after the Bantu expansion. We also show that the distribution of hunter-gatherer musical instruments correlates with the oldest genomic segments in our sample predating farming. Music-related words are widely shared between Western and Eastern groups and likely precede the borrowing of Bantu languages. By contrast, subsistence tools are less frequently exchanged and may result from adaptation to local ecologies. We conclude that CAHG material culture and specialised lexicon reflect a long evolutionary history in Central Africa.
Socio-sexual environment manipulates sperm allocation strategies in ladybird beetle, Cheilomenes sexmaculata (Fabricius)
Authors: Yadav Priya , Mishra Geetanjali , Omkar Omkar
Published: December 2023

Males are predicted to adjust their ejaculate expenditure according to the socio-sexual environment they perceive. Empirical evidence suggests that males are able to assess sperm competition risk and mating opportunities, leading to differential sperm investment. Therefore, it was hypothesized that males will transfer more sperm in presence of rivals while decrease sperm number in presence of additional mates. Here, effect of number of matings on sperm transfer was also assessed. Experimental setup was created that allowed males to perceive conspecific rivals or additional mates through olfaction both prior to and during mating. Supporting sperm competition theory and sperm economy model, our results demonstrated that male increases sperm number in presence of rivals while decreases in presence of additional mates. Moreover, number of matings also affected sperm transfer. Copulation duration and sperm transfer were found to be insignificantly correlated. Our findings also suggest that the length of exposure and number of rivals are critical determinants of male plastic response to potential sperm competition level.
Effect of (Azolla Pinnata) Meal Supplementation on Growth Performance, Carcass Traits, and Gut Histomorphology in Commercial Broilers
Authors: Khan Faheem Ullah , R Rafiullah , Lionel KINKPE , Hassan Sohaib Ul , Ahmed Hafiz Qadeer , Shuaib Muhammad , Assogba Cedric M.
Published: December 2023

This study explored Azolla pinnata meal as a sustainable alternative in broiler diets, using 300-day-old broilers. The four treatment groups (A, B, C, D) received 0g/kg, 1g/kg, 2g/kg, and 3g/kg of Azolla meal, respectively. Nutrient digestibility and nutritional analysis ensured a balanced diet. Results showed significant growth improvement, with the 3g/kg Azolla group achieving the most favorable feed conversion ratio (FCR) at 1.66, aligning with sustainability goals. A notable finding was the progressive increase in FCR over five weeks with week three displaying the highest FCR. Moreover, the observation of increasing FCR throughout the five-week experimental period, higher Azolla supplementation correlated with increased ileal villus height, indicating improved nutrient absorption. Consistent crypt depth emphasized Azolla’s specific impact on villus height. One of the distinctive aspects of this study lies in its emphasis on histopathological analysis, a facet that sets it apart from existing research in the domain. These results provide insights into Azolla pinnata meal’s sustainable use in broiler nutrition, promoting growth, feed efficiency, and gut health. In conclusion, 3g/kg Azolla supplementation positively impacted broiler performance, emphasizing its potential in sustainable poultry production.
Impact of Non-Emergency Surgical Timing on Postoperative Recovery Quality in Mild or Asymptomatic SARS-CoV-2 Infected Patients: A Grouped Cohort Study
Authors: Wang Qiubo , Wang Yulong , Wang Yuefeng , Chen Hua , Chen Wei , Chen Yongquan
Published: December 2023

Objective
to explore the relationship between the timing of non-emergency surgery in mild or asymptomatic SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) infected individuals and the quality of postoperative recovery from the time of confirmed infection to the day of surgery.
Methods
A total of 300 cases of mild or asymptomatic SARS-CoV-2 infected patients undergoing elective general anesthesia surgery at Yijishan Hospital between January 9, 2023, and February 17, 2023, were collected. Based on the time from confirmed SARS-CoV-2 infection to the day of surgery, patients were divided into four groups: ≤2 weeks (Group A), 2–4 weeks (Group B), 4–6 weeks (Group C), and 6–8 weeks (Group D). The primary outcome measures included the QoR-15 scale scores at 3 days, 3 months, and 6 months postoperatively. Secondary outcome measures included postoperative mortality, ICU admission, pulmonary complications, postoperative length of hospital stay, extubation time, and time to leave the PACU.
Results
Concerning the primary outcome measures, the QoR-15 scores at 3 days postoperatively in Group A were significantly lower compared to the other three groups (P < 0.05), while there were no statistically significant differences among the other three groups (P > 0.05). The QoR-15 scores at 3 and 6 months postoperatively showed no statistically significant differences among the four groups (P > 0.05). In terms of secondary outcome measures, Group A had a significantly prolonged hospital stay compared to the other three groups (P < 0.05), while other outcome measures showed no statistically significant differences (P > 0.05).
Conclusion
The timing of surgery in mild or asymptomatic SARS-CoV-2 infected patients does not affect long-term recovery quality but does impact short-term recovery quality, especially for elective general anaesthesia surgeries within 2 weeks of confirmed infection. Therefore, it is recommended to wait for a surgical timing of at least greater than 2 weeks to improve short-term recovery quality and enhance patient prognosis.
Biodistribution and dosimetry of 177Lu-DOTA-IBA for therapy of bone metastases
Authors: Li Hongmei , Pei Wenjie , Yang Xiqun , Qu Gengcuo , Hua Qingchu , Liu Lin , Wang Yudi , Xu Tingting , Chen Yue
Published: December 2023

Background
We designed and synthesized a novel bisphosphonate radiopharmaceutical (68Ga- or 177Lu-labeled DOTA-ibandronate [68Ga/177Lu-DOTA-IBA]) for the targeted diagnosis and treatment of bone metastases. In this study, the biodistribution and internal dosimetry of a single therapeutic dose of 177Lu-DOTA-IBA were evaluated using a series of single-photon emission computerized tomography (SPECT) images and blood samples. Five patients with multiple bone metastases were included in this prospective study. After receiving 1110 MBq 177Lu-DOTA-IBA, patients underwent whole-body SPECT/CT imaging and venous blood sampling over 7 days. Dosimetric evaluation was performed for the main organs and tumor lesions. Safety was assessed using blood biomarkers.
Results
177Lu-DOTA-IBA showed fast uptake, high retention in bone lesions, and rapid clearance from the bloodstream in all patients. In this cohort, the average absorbed doses in the bone tumor lesions, kidneys, liver, spleen, red marrow, bladder, and osteogenic cells were 5.740, 0.114, 0.095, 0.121, 0.095, and 0.333 Gy/GBq, respectively. Although no patient reached the predetermined dose thresholds, the red marrow will be the dose-limiting organ. There were no adverse reactions recorded after administration of 1110 MBq 177Lu-DOTA-IBA.
Conclusion
Dosimetric results show that the absorbed doses for critical organs and total body are within the safety limit and with high bone retention. It is a promising radiopharmaceutical alternative for the targeted treatment of bone metastases, controlling its progression, and improving the survival and quality of life of patients with advanced bone metastasis.
Auditory rhythm facilitates perception and action in children at risk for Developmental Coordination Disorder
Authors: Carrillo Chantal , Chang Andrew , Armstrong Hannah , Cairney John , McAuley J. Devin , Trainor Laurel J.
Published: December 2023

Developmental Coordination Disorder (DCD) is a common neurodevelopmental disorder featuring deficits in motor coordination and motor timing among children. Deficits in rhythmic tracking, including perceptually tracking and synchronizing action with auditory rhythms, have been studied in a wide range of motor disorders, providing a foundation for developing rehabilitation programs incorporating auditory rhythms. However, it is unclear whether DCD also features this deficit. We recruited 7- to 10-year-old children at risk for DCD (rDCD) and typically developing (TD) children. In a speech recognition task with no overt motor component, modulating the speech rhythm interfered more with the performance of rDCD children than TD children. A set of auditory-motor tapping tasks further showed that, although children at risk for DCD performed worse than TD children in general, the presence of an auditory rhythmic cue (isochronous metronome or music) facilitated the temporal consistency of tapping. Finally, accuracy in the recognition of rhythmically modulated speech and tapping consistency correlated with performance on the standardized motor assessment. Together, the results show auditory rhythmic regularity benefits auditory perception and auditory-motor coordination in children at risk for DCD. Clinically, it provides a foundation for developing evidence-based interventions involving auditory-motor rhythmic coordination for children with DCD.
A nomogram prediction of periodontitis in Chinese pregnant women with different sociodemographic and oral behavior characteristics: A community-based study
Authors: Shi Qiao , Cai Yu , Wang Xiaoxuan , Liu Guojing , Luan Qingxian
Published: December 2023

Objectives
The periodontal health of pregnant women is an important health concern as periodontitis can compromise the pregnancy outcomes. This study aimed to assess periodontitis and its associated factors in pregnant women to identify its risk indicators and develop a nomogram prediction model for the risk of periodontitis in pregnancy.
Materials and methods
A community-based cross-sectional study was conducted in 438 pregnant women at 10–36 gestational weeks in Langfang, China. The periodontal status was examined, and the demographic, socioeconomic, and oral health behavioral data were collected. Potential influencing factors were analyzed using univariate and multivariate logistic regression analyses. A nomogram prediction model was developed and its validation and discriminatory abilities were analyzed.
Results
The incidence of periodontitis in pregnant mowen was 59.8%. The variables associated with periodontitis in pregnant women were gestational age, non-first pregnancy, daily tooth brushing frequency before pregnancy ≤ 1, and annual frequency of periodontal treatment < 1, including no periodontal treatment. A nomogram prediction model for periodontitis in pregnant women was developed using these four factors. The AUC of the training and testing cohorts were 0.855 and 0.831, demonstrated a good prediction accuracy of the nomogram model. The calibration curve and decision curve analysis demonstrated good performance and high net benefit of nomogram.
Conclusion
The gestational age, non-first pregnancy, lower frequency of daily tooth brushing before pregnancy, and lower frequency of periodontal treatment may be risk factors for periodontitis in pregnant Chinese women. An easy-to-use nomogram with acceptable accuracy enables periodontitis risk prediction in pregnant Chinese women.
Clinical relevance:
This nomogram model can assist clinicians in evaluating the risk of periodontitis in pregnancy, thereby offering more tailored oral health education to women of reproductive age.