bluuebunny/crossref_metadata_2025 huggingface dataset:
Indication for the Presence of Mixed Modes of Sporogenesis in Lindsaea Heterophylladryand. (Lindsaeaceae: Pteridophyta)
Authors: Ramesh V , Vasudevan N , Irudayaraj Andv
Published: May 2022

Morphological studies on sporangia and spores of the hybrid fern Lindsaea heterophylla Dryand. (L. ensifolia Sw. x L. bonii Christ.) from South India indicates the presence of mixed mode of sporogenesis with the occurrence of 8 spored sporangia during peak winter (December) and 32 spored sporangia during late winter (January). This kind of reproductive flexibility in this fern is attributed to environmental adaptation. Both morphological and reproductive flexibility in this species also proved the hybrid origin of this species. Further cytogenetical studies are required on this hybrid fern along with its parents to confirm the ploidy level of this fern, Lindsaea heterophylla Dryand.
The Art of Saving Money: Women as a Catalyst Builder
Authors: Nagalakshmi S
Published: May 2022

Today the world is jostling with Covid 19, which has shaken many people lives in various ways. In fact, Covid 19 has thought a lesson to be cautious and conscious on one’s health, protect environment, help one another and financial saving. However Covid 19, has not only created a health crisis but equally economic crisis which is also one of the major conflict faced by every individual all over the world. Due to reduced productivity, trade disruption, loss of job, close of business, disrupt in the transport, tourism, disfunctioning of many industries, etc.every individual met the financial slug which changed the life style of people in a very poor way. Covid 19 has made people to protect their health and as well as gave an awakening and opened the eyelid of the people, to save money, which would help them in need of the hour. People realized to the saying that, “A light purse is a heavy curse” and barely felt the need of saving the money. To this regard, especially women in the family were a torch bearer who managed the monetary crisis by their art of saving habitual behaviour, not only during the need of the hour but always. Hence this conceptual paper would bring out the art of saving money by women in the family, which not only protect her family but even the society.
On p- Open Sets with Respect to an Ideal
Authors: Deena N , Krishnan K
Published: May 2022

In this, paper we introduce and investigate, the notion of α - Ip - open, semi - Ip - open and pre - Ip - open sets via idealization by using p - local function and studied their some properties.
k-Extensibility and Weakly k-Extensibility in Generalized Petersen Graphs
Authors: Angaleeswari K , Krishnan K , Perumal M , Swaminathan V
Published: May 2022

Let G be a simple graph. Let k be a positive integer. G is said to be k- extendable if every independent set of cardinality k is contained in a maximum independent set of G. A graph is weakly k- extendable if any non-maximal independent set of cardinality k is contained in a maximal independent set of G. Every k- extendable is weakly k- extendable but not the converse. Thus weakly k- extendable graph is a class of graphs wider than the class of k-extendable graphs. k-extendable and weakly k- extendable have been studied in [1, 2,3,4,6]. Characterization of graphs with β0 (G) = (n - 3), β0 (G) = (n - 2), and which is trivially extendable has been done in [5]. In this paper, we derive the some results on k-extensibility and weakly k-extensibility in generalized Petersen graphs. “Detection of emerging communities in a social network proves helpful to trace the growth of certain interests or interest groups. There are many community detection algorithms in the literature. However, they have the limitations of being too loose or they are not scalable – i.e., inextensible to large social networks. In this paper, we define a new property for the generalized Petersen Graphs namely k-Extensibility, which helps to find and visualize such communities.”
Mathematical Models of Single Stage Monod Model of Landfill Degradation using Laplace Transform and Homotopy Perturbation Method
Authors: Visuvasam J , Krishnan K , Meena A
Published: May 2022

A mathematical model to predict waste degradation and landfill gas production is discussed. The model is based on two reaction-diffusion equations containing a non-linear term related to Michaelis–Menten kinetics of the enzymatic reaction. In this paper, we present an approximate analytical solution of the non-linear differential equations that describe the diffusion coupled with a Michaelis–Menten kinetics law. Approximate analytical expressions for substrate and biomass concentrations have been derived for all values of parameter using Laplace transform method and homotopy analysis method. These results are compared with the numerical result and satisfactory is noted. The obtained results are valid for the whole solution domain.
New Analytical Solution of Stagnation Point Flow and Heat Transfer in a Porous Medium
Authors: Rajaram M , Meena A , Krishnan K
Published: May 2022

A new analytical method called q-homotopy analysis method is applied for solving nonlinear differential equations. In this paper, the mathematical study of stagnation points flow and heat transfer phenomena in a porous medium are discussed. The governing coupled nonlinear partial differential equations are converted into coupled nonlinear ordinary differential equations using similarity transformations and solved analytically for the values of Prandtl number Pr, Porous medium K, Casson fluid parameter β, Ratio parameter c using q-homotopy Analysis Method. The influence of the skin-friction coefficients for different parameters is discussed and presented in tabular form. The obtained q-homotopy analysis method solutions are compared with numerical results and it gives a remarkable accuracy.
Study of the Thermal Stability and Ionic Conductivity of Polystyrene-Co-Acrylonitrile Based Composite Solid Polymer Electrolytes Incorporated with different Lithium Salts
Authors: Ganesan SV , Selvamurugan M , Thamima M , Karuppuchamy S , Mothilal KK
Published: May 2022

In the present study, a series of poly(styrene-co-acrylonitrile) (SAN) polymer electrolytes and SAN- poly(vinyl alcohol) (PVA) polymer blend electrolytes were prepared with different lithium salts using a solvent casting technique. TG & DSC studies were carried out to investigate the thermal stability of the polymer blend electrolytes. Ionic conductivities of these electrolytes were measured by AC impedance spectroscopy. Results for conductivity studies have shown that the polymer with SAN/PVA complex with 5 % LiBr exhibits the highest conductivity of 8.7 × 10−5 S/cm at 70°C. The temperature dependence of the polymer electrolyte films obeys Arrhenius relation.
Violence Against Women During the Covid-19 Pandemic
Authors: Nawawi Jumriani
Published: May 2022

The COVID-19 pandemic that has hit the world has had a huge impact. Women are one of the groups affected by the pandemic. Legal protection for women has been established and has permanent legal force. However, the reality is that violence against women continues both culturally and structurally. This article describes the impact of the pandemic on women and efforts to eliminate violence against women during the pandemic. This research was conducted by systematically examining the laws and regulations and by using the technique of collecting document studies from the results of research on violence against women. The results of the study describe that COVID-19 has had a tremendous impact on women in terms of achieving sustainable development goals in Indonesia. During the COVID-19 pandemic, violence against women has increased.
Critical Analysis of The Policy of Mediation Time in The Employment Disputes Settlement
Authors: Pangestu Ilham Aji , Fitri Fitri
Published: May 2022

Relationship among stakeholders in an industrial environment does not always run well. The conflicts within an industrial relationship are common, and they are known as industrial relation disputes. However, the disputes must be settled such as by mediation. This study aimed to analyze and investigate the 30 (thirty) day mediation period specified by Article 15 of the PPHI Law for the settlement of industrial relation disputes by the mediator. This study is a normative legal study utilizing a statutory approach and a case approach in which legal materials were gained through literature review. It was found that the settlement period must be completed by the mediator was ideally considering two aspects: the number of cases and the number of mediators. The researchers suggested that the provisions of Article 15 of the PPHI Law cannot be implemented equally; due to each region have the different number of cases and the number of mediators. In addition, the non-ideal number of functional mediators was taking into account the aspect of the number of cases received, so currently the service and technical implementation of the settlements do not run optimally. Based on the results of the study, the researcher suggests the stakeholders: first, to revise Article 15 of the PPHI Law, which is related to the period of time for the mediator in completing the duties. Second, to increase the number of functional mediators by considering the number of cases received.
Function of Givu as Traditional Law of the Tau Taa Wana Tribe
Authors: Betaubun Restu Monika Nia , Nutfa Moh. , Yuliasih Endang , Muhammad Rivaldhy N
Published: May 2022

This study aims to explain the function of Givu as customary law as well as an identity that is able to regulate social life in the Tau Taa Wana Tribe community. The research approach used is descriptive qualitative. There were 13 informants who were selected by purposive sampling. The data used include primary and secondary data through qualitative observations, in-depth interviews, focus group discussions, documentation and document studies. Data analysis is a qualitative analysis through an interactive model, namely data reduction, data presentation; and levers. The results of the study show that Givu is a customary law that is sourced from noble abstract values ​​and rules so that it becomes a guide for social behavior that is able to support social structures. The application of Givu is regulated through institutions such as regulating economic, political and social needs. Close relationship with Mogombo (deliberation) for customary law decisions against a disturbance that maintains the spirit of collectivity and is able to strengthen a participatory culture. The importance of external recognition and respect for Givu customary law as well as state recognition and protection for the existence of the Tau Taa Wana Tribe.
RadioMe: Supporting Individuals with Dementia in Their Own Home... and Beyond?
Authors: Di Campli San Vito Patrizia , Brewster Stephen , Venkatesh Satvik , Miranda Eduardo , Kirke Alexis , Moffat David , Banerjee Sube , Street Alex , Fachner Jorg , Odell-Miller Helen
Published: May 2022

Dementia is an illness with complex health needs, varying between individuals and increasing in severity over time. Approaches to use technology to aid people with dementia are often designed for a specific environment and/or purpose, such as the RadioMe system, a system designed to detect agitation in people with mild dementia living in their own home and calming them with music when agitation is detected. Both the monitoring and intervention components could potentially be beneficially used outside of the own home to aid people with dementia and carers in everyday life. But the adaptation could put additional burdens on the carer, as many decisions and the handling of the data and software could rely on their input. In this paper we discuss thoughts on the potential role of the carer for adaptations of specified system’s expansion to a larger ecosystem on the example of RadioMe.
La Permeocalcografía
Authors: Van der Linden Jonay Cogollos , Huete Javier Cruzado
Published: May 2022

ARTÍCULO
Este texto recoge el desarrollo de la investigación de un nuevo proceso experimental de estampación que hemos denominado permeocalcografía, resultado de la hibridación de las técnicas de estampación serigráfica y calcográfica. Al utilizar la serigrafía para estampar sobre la plancha calcográfica a modo de reserva, podemos trasladar una imagen fotográfica sobre la matriz, permitiendo la combinación de los lenguajes y recursos propios de ambos procesos.
Expectativas y dificultades de docentes de matemáticas del nivel secundaria sobre la formación y evaluación docente en México
Authors: Elizarraras Baena Saúl
Published: May 2022

El presente reporte de investigación se inscribe en un programa en Gobernanza y Política Publica en Educación que es coordinado por la Autoridad Educativa Federal en la Ciudad de México. El objetivo del estudio fue identificar algunas expectativas de profesores de matemáticas del nivel secundaria de la zona oriente de la Ciudad de México sobre la formación y la evaluación docente, cuyo propósito es tomar como referencia esta información para el planteamiento de propuestas pedagógicas alternativas afines a lo estipulado en las leyes secundarias emanadas de la reforma al artículo 3º de la Constitución Política de los estados Unidos Mexicanos de 2019. Las respuestas otorgadas por parte de los informantes refieren a la falta de un programa de incentivos económicos que les permita mejores condiciones laborales y económicas para desempeñarse de manera adecuada y pertinente. Esto implica, un programa de distribución de horas para la planificación de la enseñanza y la evaluación de los aprendizajes, también espacios y tiempos para la reflexión conjunta, para el desarrollo de proyectos colectivos que redunden en la adquisición de los aprendizajes esperados de la comunidad estudiantil.
Registro y valoración del Patrimonio Arquitectónico de Playa Ancha, una experiencia de investigación formativa
Authors: Muñoz del Campo Marco Antonio , Henríquez Acuña Verónica
Published: May 2022

El presente artículo da cuenta de un estudio que incorpora estrategias pedagógicas basadas en la sistematización, entendida como metodología de aprendizaje a partir de la práctica, en la formación profesional de estudiantes de las carreras de Diseño y Dibujante Proyectista de la Universidad de Playa Ancha, Valparaíso; experiencia conducente a la elaboración de registros como suministro fundamental para la valoración y difusión del patrimonio arquitectónico local. Con el objetivo de fortalecer competencias disciplinares y nucleares en estudiantes en formación temprana, dichos contenidos; hasta ahora sólo investigados y desarrollados en fases de titulación de pregrado y formación de postgrado, fueron incorporados a un programa coordinado de actividades vinculadas a un proceso de investigación formativa mediante la conformación de un semillero de investigación integrado por estudiantes y liderado por un académico investigador; colectivo que orientó sus esfuerzos a estudiar seis edificaciones patrimoniales del cerro Playa Ancha, a modo de experiencia piloto. El proceso se inició con la generación de un registro arquitectónico tendiente a sustentar, en una segunda etapa, un ejercicio de interpretación y valoración para la difusión de los valores patrimoniales presentes en la arquitectura y las expresiones estéticas y formales de viviendas construidas a principios del siglo XX. El resultado de la evaluación del proceso, triangulado con un levantamiento de percepciones, permitió concluir que los estudiantes lograron comprender la importancia de la investigación -saber conocer- como insumo relevante en los procesos de registro y valoración del patrimonio arquitectónico -saber hacer- y en cuanto al saber ser y saber convivir, significaron el valor de registrar; interpretar, valorar y difundir el patrimonio cultural como un trabajo interdisciplinar que persigue, en particular, el fortalecimiento de una identidad respecto de la cual todas y todos tenemos responsabilidad.
Gitara angielska w polskiej kulturze muzycznej przełomu XVIII i XIX wieku
Authors: Gurgul Wojciech
Published: May 2022

Niniejszy artykuł poświęcony jest zachowanym polskim źródłom muzycznym przeznaczonym na gitarę angielską, chordofon szarpany popularny w drugiej połowie XVIII wieku głównie na Wyspach Brytyjskich. W Polsce zachowało się osiemnaście źródeł muzycznych przeznaczonych na gitarę angielską w stroju G-dur (na Zachodzie dominował strój C-dur). Autor starał się przez pryzmat zachowanych źródeł muzycznych oraz licznych świadectw słownych z epoki ukazać, jakie miejsce zajmował instrument w ówczesnej audiosferze Polski przełomu XVIII i XIX wieku. Duża część zachowanych źródeł związana jest z działalnością Józefa Elsnera, który dostrzegł popularność gitary angielskiej w polskich salonach szlacheckich i mieszczańskich. Warszawskie druki Elsnera ukazały się w roku 1803 (Pięć arii z opery Wintera, jedna z pierwszych dziewiętnastowiecznych warszawskich publikacji muzycznych) oraz 1805 (opracowania fragmentów popularnych w Warszawie oper wydane w ramach serii Wybór pięknych dzieł muzycznych i pieśni polskich); są jedynymi drukowanymi źródłami na gitarę angielską w Polsce. Uzupełnieniem elsnerianów jest partia gitary angielskiej w operze Leszek Biały oraz rękopis z Biblioteki Jagiellońskiej, zawierający opracowanie wodewilu z opery Elsnera Siedem razy jeden. Prócz wodewilu w Bibliotece Jagiellońskiej znajduje się dziewięć innych rękopiśmiennych źródeł, w tym krótka szkoła gry na gitarze angielskiej, cykl wariacji Carlamottiego, wiele miniatur solowych oraz opracowania wyjątków z popularnych wówczas oper. Dwa najpóźniej powstałe źródła, pochodzące z Biblioteki Diecezjalnej w Sandomierzu i powstałe w drugiej dekadzie XIX w., wiążą się z przemianami konstrukcyjnymi gitary angielskiej, które przebiegały na ziemiach zachodnich Słowian, na pograniczu Europy wschodniej i zachodniej. Owe zmiany związane są szczególnie z charakterystycznym dla polskiej literatury na gitarę angielską strojem G-dur i łączą się z początkami innego instrumentu – gitary rosyjskiej.
Patient safety incident analysis in healthcare: a novel curricular session for medical students
Authors: Mehta Nishila , Sharfuddin Nazia , Law Marcus , Ginzburg Amir , Chugh Shaan
Published: May 2022

Implication Statement
Patient safety incident analysis is a tool which allows for the identification of and learning from patient safety incidents, which are common in healthcare settings. The University of Toronto introduced a patient safety incident analysis session for graduating medical students in the form of a lecture and subsequent student presentations of incident analyses. Student respondents to evaluation rated the session highly and felt that feedback on their presentations was helpful to reinforce material. Medical schools can incorporate this innovative session as an interactive addition to quality improvement and patient safety curricula to provide students with hands-on experience in incident analysis.
Evaluation and Performance of Path Profile Characteristics in Communication System
Authors: Osahenvemwen O. A. , Okonkwo O. V. , Ogunbor S. E.
Published: May 2022

This study presents the evaluation and performance of path profile characteristics in communication system, to determine the path profile characteristics such as margin fade (dB), receiver power (dBm), 2-ray propagation model (dB), free space propagation model (dB), LOSMAX (km) and critical distance (km). Data were obtained from Network ‘A’, using three different links within a geographical location in Edo State. Receiver power is mathematic model, the sensitivity of the receiver, which depends on the bandwidth (data rate) (dBm) of antennas were considered in this analysis. All the path profile characteristics were determined, it was observed, that increase in path length distance of microwave line of sight, will necessitate the increase in transmitter power in decibel. The Path length distance and margin fade of the three basic mobile propagation links were determined. It was observed that path length distance characteristic as such the length of distance, obstacle, reflection, diffraction from ground, water bodies and atmosphere resulted to the pattern of radio margin fade signal obtained in receiver antenna. The margin fade determined are 28.83 dB, 12.95 dB and 21.24 dB for the three different links considered from Network ‘A’ in Auchi, Nigeria.
Paleo Pathography In Neurological Education During The Pandemic, And Post-pandemic Times
Authors: Appenzeller Otto
Published: May 2022

The word Paleo pathography is used to denote the study of the life history, in particular the diseases of a person, as deduced from ancient art, paintings, or sculptures. Using examples from modern and ancient art, it is shown that without the “laying on of hands,” the usual method of neurological instruction, it is possible to acquire a neurological education during pandemic times. Some examples of ancient portraiture and sculpture are provided that, to a careful eye, reveal the hallmarks of neurological ailments that affected the subjects during their lives. With the spread of distance learning and ever more powerful computational tools, such educational endeavors will also be useful in post-pandemic times [1].
Neurodegeneration- Disease And Dementia
Authors: Affia Blossom Samuel
Published: May 2022

Parkinson’s disease (PD), Alzheimer’s disease (AD), amyotrophic lateral sclerosis (ALS), front temporal dementia (FTD) and Huntington’s disease (HD show some clinical, morbid and molecular overlapping [1]. PD is one of the most common neurodegenerative disorders. Dopaminergic neurons in the substantia nigra pars compacta degenerate and die, which forms the basis of the disease [2]. As the disease intensifies with the passage of time, many people develop dementia, and other mental abilities in later stages [3]. Loss of dopaminergic neurons causes prominent and projecting symptoms like involuntary tremor, rigidity, postural instability, gait, speech problems and akinesia [4]. One accepted and efficient convention for generating dopaminergic neurons in vitro is the combination of several pharmacological compounds and molecules. A broad general evaluation of neurodegeneration is discussed in this article.
Investigating Solutions To Combat Antimicrobial Resistant Microbes
Authors: Stanis Kennedy Daphne Sahaya
Published: May 2022

Antimicrobial resistance (AMR) is the development of resistance by pathogenic microbes to an antimicrobial agent that was previously proven to be an effective treatment. The most significant concern at this time is pathogenic bacteria as they are starting to develop resistance to antibiotics faster than other types of organisms and pose a greater threat. Bacteria are able to develop antimicrobial resistance through gene transfer or mutations in the genome of the bacterial strain. Currently, there is an urgent need for methods that can effectively treat prevalent bacterial infections. This can be achieved through either the creation of new and improved antimicrobial agents or utilizing synthetic biology at the genetic level to achieve immunity.
Edelstahl Rostfrei für die Additive Fertigung
Authors: Herrling-Tusch Ursula
Published: May 2022

Überall dort, wo Gewichtsreduktion, eine Verkürzung von Herstellungs- und Montagezeiten sowie die räumliche Nähe oder Individualisierung der Produkte von Bedeutung sind, eröffnet der 3D-Metalldruck Konstrukteuren neue Möglichkeiten. Dieser Artikel gibt einen Überblick über die Anwendungsbereiche des Werkstoffs Edelstahl Rostfrei in der additiven Fertigung.
Straight speed and acceleration optimal distances and reference values. A systematic review, and meta-analyses
Authors:   Department of Sport Games, Faculty of Physical Education and Sport, Charles University, Stastny Petr , Roczniok Robert , Cleather Daniel , Musalek Martin , Novak Dominik , Vagner Michal
Published: May 2022

Review question / Objective: To summarize the sprint reference acceleration and speed values for different sprint distances and suggest optimal unification of ice-hockey straight sprint testing. Eligibility criteria: The title and abstract screening was done by two researchers (PS and RR) who selected a set of articles for full text screening, where the inclusion criteria were: 1) male or female ice-hockey players; 2) any cross-sectional or intervention study; 3) tests of ice-hockey sprinting over any distance or any battery of conditioning tests that included straight-line sprints; and, 4) results reported straight-line sprint distance, speed, time, or acceleration. In the case of disagreement between the evaluating authors, the final decision was made by a third author (MV).The full text screening exclusion criteria were: 1) if the article was not in English; 2) the testing did not include straight-line sprinting; 3) the reported values did not include data distribution; 4) the study reported only maximum speed without skating time or average speed; 5) the end of the sprint was defined by the point the player stopped sprinting; 6) the measurement was made with a stopwatch; and, 7) the study had high bias estimation. The maximum speed test was not included due to the uncertain velocity conditions at beginning of testing distance. The bias estimation was performed using the JBI (Joanna Briggs Institute) Critical Appraisal Checklist for Analytical Cross Sectional Studies (supplementary material 1).
Auricular point pressing therapy for obstructive sleep apnea hypoventilation syndrome: A protocol for systematic review and meta-analysis
Authors:   Maoming Hospital of traditional Chinese Medicine, Zhuo Guifeng , Yu Hengwang , Liao Ran , Zheng Xuexia , Liu Dongmin , Mei Libing , Wu Guiling
Published: May 2022

Review question / Objective: Patients with obstructive sleep apnea hypoventilation syndrome (OSAHS) suffer from repeated hypoxemia, hypercapnia, and sleep structure disorders at night, leading to daytime lethargy and complications of heart, brain, lung, and blood vessel damage, which seriously affect their quality of life and life span. Clinical studies have shown that auricular point pressing therapy has an excellent therapeutic effect on OSAHS, and has the potential to be a complementary and alternative therapy for patients with OSAHS. Currently, systematic reviews and meta-analyses evaluating the efficacy and safety of electroacupuncture for the treatment of OSAHS are lacking. This study aimed to address this deficiency. Information sources: RCTs of auricular point pressing therapy in the treatment of OSAHS were searched in the Web of Science, PubMed, Cochrane Library, Embase, Allied and Complementary Medicine Database (AMED), China Science and Technology Journal Database (VIP), China National Knowledge Infrastructure (CNKI), and Wan-Fang Database. The retrieval time is from database construction to the present.
Estimating county-level overweight prevalence in Kenya using small area methodology
Authors: Mutai Noah Cheruiyot
Published: May 2022

Public health surveillance of overweight prevalence is essential to assess the extent of the problem, identify regions and groups most affected and inform policy-making. However, the needed reliable data at disaggregated levels is lacking in Kenya. The Kenya STEPwise Survey for Non-communicable Diseases and RiskFactors (KSSNDRF) was nationally representative. It was used to obtain various indicators of non-communicable diseases and risk factors including overweight. However, due to small sample sizes at lower levels like at the county, overweight prevalence estimates are statistically imprecise (i.e., high variance). Therefore, to increase the effective sample size we combine data from the KSSNDRF and the Kenya Population and Housing Census by model-based small area methods. In particular, we fit an arcsine square-root transformed Fay–Herriot model. To transform back to the original scale, we use a bias-corrected back transformation. For this model, we smooth the design variance using Generalised Variance Functions. We compute the mean squared error estimates using a bootstrap procedure. We found that counties within urban areas — including the major towns like Nairobi, Nakuru, Nyeri and Mombasa — have a higher prevalence of overweight compared to rural counties. Although the paper focuses on overweight prevalence in Kenya, the presented method can also be applied to other indicators in developing countries with similar data sources.
EVALUATION OF METABOLIC PROCESSES OF PUREBRED AND CROSSBRED PIGS AT DIFFERENT AGES
Authors:   FSC of Legumes and Groat Crops, LEVSHIN A.D. , KULMAKOVA N.I. ,   Russian State Agrarian University ‒ Moscow Timiryazev Agricultural Academy
Published: May 2022

The article presents data on changes in the content of total protein, albumin and globulin in crossbred gilts compared to purebred gilts at different ages. In the study of total protein, it was found that the crossbred gilts contained a higher amount of total protein in the blood serum. The results showed that the increase in total protein throughout the study period was greater in the crossbred gilts.
Plan de saneamiento de la deuda autonómica
Authors: Zabalza Antoni
Published: May 2022

La deuda autonómica con relación al PIB fue prácticamente constante, alrededor del 6%, entre 1955 y 2007. A partir de 2007 y empujada por la Gran Recesión inicia una fuerte escalada que la lleva a un máximo de casi el 25% en 2016, para estabilizarse de forma muy gradual en los años siguientes. En 2019 representaba el 23,7 % del PIB. El sistema de financiación no está pensado para soportar volúmenes de deuda tan elevados, y prueba de ello es que a partir de 2012 las comunidades hubieran incumplido sus obligaciones financieras, a no ser por la asistencia prestada por el gobierno central. Nada de esto es una sorpresa. Si las comunidades proveen a la ciudadanía servicios esenciales como la sanidad y la educación de los que la sociedad no puede prescindir, y si sus ingresos, por causa del actual mecanismo de actualización de la financiación autonómica, dependen de la evolución de los grandes tributos nacionales y, por tanto, del ciclo económico, tarde o temprano las comunidades tendrán que endeudarse de forma sustancial para poder cumplir sus obligaciones competenciales. En este artículo se argumenta: i) que la desconexión hoy existente entre las necesidades de gasto y los recursos que el sistema pone a disposición de las comunidades debe resolverse de raíz reformando el mecanismo de actualización del sistema; y ii) que el lastre que supone la voluminosa deuda acumulada durante la pasada crisis debe ser eliminado con un plan concreto de saneamiento financiero.
Análisis del Diseño de la Estrategia RIS3 de Andalucía a través del Benchmarking Regional
Authors: Yépez Muñoz Francisco , Martos Luis Palma , Pavón Noemí Pulido
Published: May 2022

Research and innovation strategies for smart specialisation (RIS3), conceived as a tool to improve the economic performance of regions through innovation, has played a key role in the European Union regional policy in the 2014-2020 programing period.

One of the main points of RIS3 strategies is the selection of few specialisation priorities in which regional economies have a certain competitive advantage. Regional benchmarking exercises are encouraged by the European Commission, to provide a better vision of the position of the region and detect its strengths and weaknesses.

In our work we focus our attention in Andalusia, a region in which European regional policy has a very relevant historical importance. We intend to reinforce the SWOT analysis included in the RIS3 strategy of Andalusia 2014-2020, performing a detailed comparative analysis of the region in relation to a selection of reference regions, using the benchmarking methodology proposed by the European Commission. This exercise allows us to enrich the SWOT analysis included in the Andalusian RIS3 strategy 2014-2020 and, therefore, to design new proposals for action that could have been included and to propose a cualitative methodology that could be useful in the design of RIS3 strategies in the period 2021-2027.
Los vínculos entre aglomeración y crecimiento. Un estudio para Argentina.
Authors: Figueras Alberto José , Cristina A. Daniela , Blanco Valeria , Iturralde Ivan Martín
Published: May 2022

El trabajo analiza el efecto de la aglomeración sobre el crecimiento económico en las provincias argentinas para el período 1981-2007 utilizando estimaciones de efectos fijos y de GMM dinámico. La elección del enfoque de estimación es crucial. La utilización de GMM para reducir el sesgo de simultaneidad permite observar una relación entre aglomeración y crecimiento en las provincias argentinas que sugiere que la Hipótesis de Williamson está vigente.
Efectos sociales espaciales sobre la decisión de participar en el mercado laboral de los jóvenes en un país en desarrollo
Authors: Mora Rodriguez Jhon James
Published: May 2022

A nivel mundial, muchas políticas públicas buscan mejorar los resultados en participación, empleo y desempleo de los jóvenes en el mercado laboral. La evidencia muestra que la educación, la edad, el sexo, los ingresos del hogar y las condiciones laborales afectan la participación en el mercado laboral. Sin embargo, la forma en que el comportamiento de otros jóvenes afecta la decisión por participar en el mercado de trabajo, en un país en desarrollo, es un tema de discusión. Utilizando la ubicación (GPS) para 1094 jóvenes, se estima un modelo espacial para las decisiones individuales de participar en el mercado laboral en Colombia. Los resultados muestran que la decisión de un joven cercano con respecto a su participación laboral afecta la decisión individual por participar en el mercado laboral de otro joven, es decir, existen efectos sociales en la participación laboral juvenil.
The forestry products value chain and the costs of reshaping it: Multi-regional impacts of shrinking the pulp and paper industries in Portugal
Authors: Cruz Luis , Ramos Pedro , Barata Eduardo , Ferreira João-Pedro
Published: May 2022

Forestry industry macroeconomic assessments typically concentrate on the production, harvesting, and earliest processing of wood products, underestimating the full range of forests impacts in regional economies.

This work proposes a broader concept – forestry products value chain – that ponders the contribution of the downstream activities relying (directly and indirectly) on Silviculture and Forestry products.

The paper adopts a methodology based on a Multi-Regional Input-Output framework. We apply this approach to the Portuguese economy. Results clarify the role of eucalyptus in “Pulp”, “Paper and Cardboard” and “Paper and Cardboard Articles”. Finally, the projected wider macroeconomic consequences from a reduction of these productions is evaluated.
CLUSTERING ALGORITHM FOR A VEHICLE ROUTING PROBLEM WITH TIME WINDOWS
Authors: Le Thi Diem Chau , Nguyen Duc Duy , Oláh Judit , Pakurár Miklós
Published: May 2022

The demand for daily food purchases has increased dramatically, especially during the Covid-19 pandemic. This requires suppliers to face a huge and complex problem of delivering products that meet the needs of their customers on a daily basis. It also puts great pressure on managers on how to make day-to-day decisions quickly and efficiently to both satisfy customer requirements and satisfy capacity constraints. This study proposes a combination of the cluster-first –route-second method and k-means clustering algorithm to deal with a large Vehicle Routing Problem with Time Windows (VRPTW) in the logistics and transportation field. The purpose of this research is to assist decision-makers to make quick and efficient decisions, based on optimal costs, the number of vehicles, delivery time, and truck capacity efficiency. A distribution system of perishable goods in Vietnam is used as a case study to illustrate the effectiveness of our mathematical model. In particular, perishable goods include fresh products of fish, chicken, beef, and pork. These products are packed in different sizes and transferred by vehicles with 1000 kg capacity. Besides, they are delivered from a depot to the main 39 customers of the company with arrival times following customers’ time window. All of the data are collected from a logistics company in Ho Chi Minh city (Vietnam). The result shows that the application of the clustering algorithm reduces the time for finding the optimal solutions. Especially, it only takes an average of 0.36 s to provide an optimal solution to a large Vehicle Routing Problem (VRP) with 39 nodes. In addition, the number of trucks, their operating costs, and their utilization are also shown fully. The logistics company needs 11 trucks to deliver their products to 39 customers. The utilization of each truck is more than 70%. This operation takes the total costs of 6586215.32 VND (Vietnamese Dong), of which, the transportation cost is 1086215.32 VND. This research mainly contributes an effective method for enterprises to quickly find the optimal solution to the problem of product supply.
Homologous Compact Major Blowout-eruption Solar Flares and their Production of Broad CMEs
Authors: Sahu Suraj , Joshi Bhuwan , Sterling Alphonse C. , Mitra Prabir K. , Moore Ronald L.
Published: May 2022

We analyze the formation mechanism of three homologous broad coronal mass ejections (CMEs) resulting from a series of solar blowout-eruption flares with successively increasing intensities (M2.0, M2.6, and X1.0). The flares originated from NOAA Active Region 12017 during 2014 March 28–29 within an interval of ≈24 hr. Coronal magnetic field modeling based on nonlinear force-free field extrapolation helps to identify low-lying closed bipolar loops within the flaring region enclosing magnetic flux ropes. We obtain a double flux rope system under closed bipolar fields for all the events. The sequential eruption of the flux ropes led to homologous flares, each followed by a CME. Each of the three CMEs formed from the eruptions gradually attained a large angular width, after expanding from the compact eruption-source site. We find these eruptions and CMEs to be consistent with the “magnetic-arch-blowout” scenario: each compact-flare blowout eruption was seated in one foot of a far-reaching magnetic arch, exploded up the encasing leg of the arch, and blew out the arch to make a broad CME.
Post-starburst Galaxies in the Centers of Intermediate-redshift Clusters
Authors: Werle Ariel , Poggianti Bianca , Moretti Alessia , Bellhouse Callum , Vulcani Benedetta , Gullieuszik Marco , Radovich Mario , Fritz Jacopo , Ignesti Alessandro , Richard Johan , Soucail Geneviève , Bruzual Gustavo , Charlot Stephane , Mingozzi Matilde , Bacchini Cecilia , Tomicic Neven , Smith Rory , Kulier Andrea , Peluso Giorgia , Franchetto Andrea
Published: May 2022

We present results from MUSE spatially resolved spectroscopy of 21 post-starburst galaxies in the centers of eight clusters from z ∼ 0.3 to z ∼ 0.4. We measure spatially resolved star formation histories (SFHs), the time since quenching (t

Q
), and the fraction of stellar mass assembled in the past 1.5 Gyr (μ
1.5). The SFHs display a clear enhancement of star formation prior to quenching for 16 out of 21 objects, with at least 10% (and up to >50%) of the stellar mass being assembled in the past 1.5 Gyr and t

Q
ranging from less than 100 to ∼800 Myr. By mapping t

Q
and μ
1.5, we analyze the quenching patterns of the galaxies. Most galaxies in our sample have quenched their star formation from the outside in or show a side-to-side/irregular pattern, both consistent with quenching by ram pressure stripping. Only three objects show an inside-out quenching pattern, all of which are at the high-mass end of our sample. At least two of them currently host an active galactic nucleus. In two post-starbursts, we identify tails of ionized gas indicating that these objects had their gas stripped by ram pressure very recently. Post-starburst features are also found in the stripped regions of galaxies undergoing ram pressure stripping in the same clusters, confirming the link between these classes of objects. Our results point to ram pressure stripping as the main driver of fast quenching in these environments, with active galactic nuclei playing a role at high stellar masses.
A Statistical Detection of Wide Binary Systems in the Ultrafaint Dwarf Galaxy Reticulum II
Authors: Safarzadeh Mohammadtaher , Simon Joshua D. , Loeb Abraham
Published: May 2022

Binary stars can inflate the observed velocity dispersion of stars in dark matter-dominated systems such as ultrafaint dwarf galaxies (UFDs). However, the population of binaries in UFDs is poorly constrained by observations, with preferred binary fractions for individual galaxies ranging from a few percent to near unity. Searching for wide binaries through nearest neighbor (NN) statistics (or the two-point correlation function) has been suggested in the literature, and we apply this method for the first time to detect wide binaries in a UFD. By analyzing the positions of stars in Reticulum II (Ret II) from Hubble Space Telescope images, we search for angularly resolved wide binaries in Ret II. We find that the distribution of their NN distances shows an enhancement at projected separations of ≲1″ relative to a model containing no binaries. We show that such an enhancement can be explained by a wide binary fraction of

f

b

≈

0.007

−
0.003

+
0.008

at separations of more than 3000 au. Under the assumption that the binary separation distribution is similar to that in the Milky Way, the total binary fraction in Ret II may be on the order of 50%. We also use the observed magnitude distribution of stars in Ret II to constrain the initial mass function over the mass range 0.34–0.78 M
⊙, finding that a shallow power-law slope of 1.01 ≤ α ≤ 1.15 matches the data.
Massive Compact Dust Disk with a Gap around CW Tau Revealed by ALMA Multiband Observations
Authors: Ueda Takahiro , Kataoka Akimasa , Tsukagoshi Takashi
Published: May 2022

Compact protoplanetary disks with a radius of ≲50 au are common around young low-mass stars. We report high-resolution ALMA dust continuum observations toward a compact disk around CW Tau at Bands 4 (λ = 2.2 mm), 6 (1.3 mm), 7 (0.89 mm), and 8 (0.75 mm). The spectral energy distribution shows the spectral slope of 2.0 ± 0.24 between 0.75 and 1.3 mm, while it is 3.7 ± 0.29 between 2.17 and 3.56 mm. The steep slope between 2.17 and 3.56 mm is consistent with that of optically thin emission from small grains (≲350 μm). We perform parametric fitting of the ALMA data to characterize the dust disk. Interestingly, if the dust-to-gas mass ratio is 0.01, the Toomre Q parameter reaches ∼1–3, suggesting that the CW Tau disk might be marginally gravitationally unstable. The total dust mass is estimated as ∼250 M
⊕ for the maximum dust size of 140 μm that is inferred from the previous Band 7 polarimetric observation and at least 80 M
⊕ even for larger grain sizes. This result shows that the CW Tau disk is quite massive in spite of its smallness. Furthermore, we clearly identify a gap structure located at ∼20 au, which might be induced by a giant planet. In spite of these interesting characteristics, the CW Tau disk has normal disk luminosity, size, and spectral index at ALMA Band 6, which could be a clue to the mass budget problem in Class II disks.
Polar Ice Accumulation from Volcanically Induced Transient Atmospheres on the Moon
Authors: Wilcoski Andrew X. , Hayne Paul O. , Landis Margaret E.
Published: May 2022

Water ice exists at the lunar poles, but its origin, abundance, and distribution are not well understood. One potential source of water to the poles is the volcanic outgassing of volatiles from the lunar interior and subsequent condensation of erupted water vapor as surface ice. We investigate whether volcanic outgassing is a viable source for the accumulation of lunar polar water ice. We construct a model that accounts for volcanic outgassing, atmospheric escape to space, and surface ice accumulation over the period of peak lunar volcanic activity (4–2 Ga) and map the resulting water ice distribution and abundance using current surface temperature data from the Lunar Reconnaissance Orbiter. Our model suggests that ∼41% of the total H2O mass erupted over this period could have condensed as ice in the polar regions, with thicknesses up to several hundreds of meters. The south pole accumulates roughly twice the ice mass of the north, and the southern deposits are thicker. Typical modeled eruptions generate collisional atmospheres with lifetimes of ∼2500 yr. However, these atmospheres are episodic and generally do not persist between eruptions. Roughly 15% of an atmosphere’s water vapor mass forms a frost on the lunar nightside, while the transient atmosphere persists. Our work suggests that the volcanically active period of the early Moon would have been punctuated by short-lived, collisional atmospheres that enabled the efficient sequestration of large quantities (8.2 × 1015 kg) of water ice at the poles and the temporary diurnal availability of water ice and vapor at all latitudes.
Revision of the Malagasy Camponotus subgenus Myrmosaga (Hymenoptera, Formicidae) using qualitative and quantitative morphology
Authors: Rakotonirina Jean Claude , Fisher Brian L.
Published: May 2022

The Camponotus subgenus Myrmosagasubgen. rev. from the Malagasy region is revised based on analysis of both qualitative morphological characters and morphometric traits. The multivariate analysis used the Nest Centroid (NC)-clustering method to generate species hypotheses based on 19 continuous morphological traits of minor workers. The proposed species hypotheses were confirmed by cumulative Linear Discriminant Analysis (LDA). Morphometric ratios for the subsets of minor and major workers were used in species descriptions and redefinitions. The present study places the subgenus Myrmopytiasyn. nov. in synonymy to Myrmosaga. It recognizes 38 species, of which 19 are newly described: C. ainasp. nov., C. arosp. nov., C. asarasp. nov., C. atimosp. nov., C. bemahevasp. nov., C. bozakasp. nov., C. darainasp. nov., C. harenarumsp. nov., C. joanysp. nov., C. karstisp. nov., C. kelimasosp. nov., C. lokobesp. nov., C. mahafalysp. nov., C. niavosp. nov., C. rotraesp. nov., C. sambiranoensissp. nov., C. tapiasp. nov., C. tendryisp. nov., C. vanosp. nov. Eleven species are redescribed: C. aurosus Roger, C. cervicalis Roger, C. dufouri Forel, C. gibber Forel, C. hagensii Forel, C. hova Forel, C. hovahovoides Forel, C. immaculatus Forel, C. quadrimaculatus Forel, C. roeseli Forel, C. strangulatus Santschi. The following are raised to species and redescribed: C. becki Santschi stat. nov., C. boivini Forel stat. rev., C. cemeryi Özdikmen stat. rev., C. mixtellus Forel stat. nov., C. radamae Forel stat. nov.Camponotus maculatus st. fairmairei Santschi syn. nov., is synonymized under C. boivini. The following are synonymized under C. cervicalis: Camponotus cervicalis gaullei Santschi, syn. nov.; Camponotus perroti Forel, syn. nov.; Camponotus perroti aeschylus Forel, syn. nov.; Camponotus gerberti Donisthorpe, syn. nov.Camponotus dufouri imerinensis Forel, syn. nov. is a synonym of C. dufouri, Camponotus hova var. obscuratus Emery, syn. nov. is a synonym of C. hova, Camponotus quadrimaculatus opacata Emery, syn. nov. is a synonym of C. immaculatus, Camponotus maculatus st. legionarium Santschi, syn. nov. is a synonym of C. roeseli, Camponotus hova maculatoides Emery, syn. nov. is a synonym of C. strangulatus. The following are synonymized under C. quadrimaculatus: Camponotus kelleri Forel, syn. nov., Camponotus kelleri var. invalidus Forel, syn. nov., Camponotus quadrimaculatus sellaris Emery, syn. nov. As C. imitator Forel, C. liandia Rakotonirina & Fisher, and C. lubbocki Forel have been recently described and redescribed, only diagnoses and taxonomic discussions are provided. This revision also includes an illustrated species identification key, taxonomic discussions, images, and distribution maps for each species superimposed on the ecoregions of Madagascar.