bluuebunny/crossref_metadata_2025 huggingface dataset:
Saberes de las y los adolescentes de escuelas públicas de Bahía Blanca sobre el cuidado de la fertilidad
Authors: Navés Flavia Andrea , Abelaira Paula Micaela , Musante Bianca
Published: September 2022

Incorporar prácticas que cuidan la fertilidad a temprana edad es de suma relevancia para asumir la vida sexual y reproductiva de manera saludable y responsable. Nuestro objetivo es analizar las representaciones sociales y las prácticas de las y los adolescentes de 4to año de las escuelas secundarias públicas de gestión estatal de la ciudad de Bahía Blanca sobre el cuidado de la fertilidad. Método: se realizó un estudio exploratorio y descriptivo; para la recolección de datos se implementó un abordaje cuantitativo de investigación a través de una encuesta virtual realizada entre octubre y diciembre del 2020 a un total de 449 alumnos de 49 escuelas secundarias públicas de Bahía Blanca. En las conclusiones se destaca una mayor tendencia por parte de los varones al desconocimiento de la fertilidad. No se encontraron diferencias significativas en relación con el nivel educativo del hogar. Se destaca que resulta necesario revisar la información que se transmite en la escuela y el enfoque de esta, garantizando la perspectiva de género, los derechos de las y los adolescentes, y retomando temas históricamente postergados como el cuidado de la fertilidad. 
Evolución de las tecnologías de reproducción asistida. Una mirada desde la biomedicina
Authors: Flores Javier
Published: September 2022

Las tecnologías de reproducción asistida (TRA) han tenido una evolución incesante desde el segundo tercio del siglo XX —a partir de la inseminación artificial en humanos— y con cada desarrollo surgen escenarios novedosos para la reproducción humana. Lo que impulsa el avance de estas técnicas y del conocimiento asociado con ellas es principalmente la infertilidad. Debido a que esta condición se relaciona, aunque no de manera exclusiva, con trastornos orgánicos, es la biomedicina el principal campo del conocimiento que desarrolla los medios para enfrentarla en mujeres, hombres o parejas infértiles, aunque más recientemente se han incorporado otras áreas como la ingeniería, el diseño y los nuevos materiales. Este conocimiento, cuyo objetivo es principalmente enfrentar la incapacidad humana para reproducirse, tiene efectos colaterales no siempre indeseables que rebasan los propósitos para los que fueron creadas, produciendo un impacto potencial en las formas de asociación reproductiva en nuestra especie. En este texto se describen las características de los avances surgidos de la investigación científica y tecnológica en este siglo, en particular los trasplantes, los órganos artificiales y la producción de células sexuales en el laboratorio. Se examinan los efectos colaterales de estas técnicas y los debates en torno a ellas sobre el presente y futuro de la reproducción humana. 
El continuo objeto-sujeto: un acercamiento teórico a la noción consustancial entre el ser humano y su hábitat
Authors: Aguirre Franco Marcos de J.
Published: September 2022

La postura epistemológica fundada en el dualismo y la idea de los opuestos muestra hoy signos de debilidad cuando se busca comprender la realidad que es coproducida entre el sujeto consciente y el objeto de la experiencia. El presente artículo tiene como primer objetivo introducir algunos conceptos clave que permitan argumentar cómo es que la noción de objeto-sujeto forma una totalidad indivisible en el proceso de interpretación perceptual. Y como segundo objetivo derivado de ello, se ha de discutir la necesidad de un hábitat no entendido como externo al hombre que evoluciona en civilización, sino mejor aún, coextensivo a él. Cabe señalar que el presente análisis no está centrado puramente en una revisión al problema mente-cuerpo o en una exploración al dualismo metafísico que hasta hoy inunda el trabajo de gran número de pensadores, sino más bien, con la ayuda y argumentación de un cuerpo teórico transdisciplinar, el aporte de este breve estudio se centra en cuestionar cómo es que el hábitat del ser humano ha llegado a reducirse al punto de concebirse como externo o separado de él. Un entendimiento de la realidad que, como se verá más delante, ya presenta serias dificultades socioambientales derivadas del solo intento de su fragmentación. 
Conocimiento local de caficultores chiapanecos sobre la roya (Hemileia vastatrix)
Authors: Castellanos-Galdámez Mariela del Carmen , Venegas Sandoval Andrea , Soto-Pinto María Lorena , Ramos Hernández Silvia Guadalupe , Cano Contreras Eréndira Juanita
Published: September 2022

La roya anaranjada (Hemileia vastatrix), durante el periodo 2012-2013, afectó en gran medida la producción del café en México y en consecuencia a las familias dependientes de la caficultura. La actividad cafetalera envuelve un cúmulo de conocimientos que son el resultado de percepciones, observaciones y experiencias adquiridas a lo largo del tiempo. El objetivo del estudio es identificar aquellos conocimientos intrínsecos y apropiados sobre la enfermedad de la roya del cafeto con la finalidad de servir como referente para la construcción de espacios que fomenten el diálogo de saberes y constituyan una herramienta para el diseño colectivo de estrategias de manejo del hongo Hemileia vastatrix. Para el levantamiento de datos se utilizaron técnicas cualitativas y cuantitativas: entrevista semiestructurada, análisis de contenido mediante el software QRS N6 y la Escala Likert, esta última para analizar el conocimiento que existe sobre la roya y la actitud que mantienen los productores hacia la actividad cafetalera, sin pretender evaluar el conocimiento. Los factores identificados que inciden en la construcción del conocimiento de los caficultores son: la observación, experimentación, herencia familiar y medios de información; este estudio permitirá valorar el aporte de los caficultores en la ciencia para enfrentar los problemas asociados al sistema cafetalero. 
Migración y transnacionalismo: nuevos retos de los desplazamientos en el siglo XXI
Authors: Bokser Misses-Liwerant Judit
Published: September 2022

La migración y la movilidad humana son fenómenos históricos que tienen un impacto sobre individuos, grupos y sociedades implicadas en su partida, paso y llegada. Históricamente, ha estado asociada a importantes acontecimientos mundiales: —revoluciones, guerras y el auge y la caída de imperios; a cambios socioeconómicos significativos —expansión económica, desarrollo nacional y transformaciones políticas, así como a problemas sociales tales como conflictos, violencia, persecuciones y desposesión territorial. En este sentido, las migraciones han sido constantes a lo largo de la historia pasada y prsente (Koser, 2007); sin embargo, su carácter y alcance han cambiado a lo largo del tiempo. El análisis de estas transformaciones puede ayudarnos a entender cómo se desarrolla la migración y puede alimentar la creación de políticas, programas y respuestas operativas eficaces (oim, 2021).
Variantes de SARS-CoV-2 y los casos asociados a cuatro olas epidemiológicas en Sinaloa, México
Authors: Batista-Roche Jorge Luis , Mirabent-Casals Marian , Gómez-Gil Bruno , Berlanga-Robles César , García-Gasca Alejandra
Published: September 2022

La pandemia de COVID-19 es un problema de salud pública que ha revelado las deficiencias y los retos presentes en el funcionamiento de los sistemas hospitalarios del mundo. En México, hasta el momento de finalizar esta recopilación, se han manifestado cuatro “olas epidemiológicas”, cada una dominada por variantes virales con comportamientos diferentes. En este reporte se describe el progreso de la pandemia COVID-19 en la población de Sinaloa, México, durante las cuatro olas epidemiológicas. La información se obtuvo de las bases de datos públicas federales durante el período de marzo del 2020 a febrero del 2022 y los genomas de las variantes de SARS-CoV-2 de interés y preocupación en Sinaloa se tomaron de la base de datos GISAID de enero del 2021 a mayo del 2022. El riesgo relativo (RR) de contraer SARS-CoV-2 fue calculado a partir de documentos públicos. Sinaloa presentó cuatro olas epidemiológicas, entre marzo del 2020 y febrero del 2022, cada una estuvo dominada por variantes diferentes, también en grado de transmisión y severidad. Es un hecho de interés que la variante delta (presente en la tercera ola) fue la más severa, por el alto número de enfermos por día y las altas tasas de mortalidad, a diferencia de la variante omicron (en la cuarta ola) que produjo el mayor número de pacientes por día, pero menores tasas de mortalidad. La mayoría de los contagios por COVID-19 en Sinaloa se presentaron en la población de entre 30 y 45 años de edad, con una edad promedio de los fallecidos superior a los 60 años en todas las olas; estos últimos por ser adultos mayores, fueron más vulnerables que los infantes y las personas más jóvenes, sin embargo, el riesgo relativo (RR) para personas mayores disminuyó en la tercera y cuarta olas. Los hombres mayores de 60 años presentaron un RR más alto que las mujeres de la misma edad. En el transcurso de la pandemia, los cambios de comportamiento del virus se deben a la emergencia de las nuevas variantes y a la respuesta de la población inmunizada. En general, los resultados indican que las variantes (subvariantes o sublinajes) del SARS-CoV-2 cada vez que surgen en lo que se denomina como “una ola”, el grado de severidad y su transmisión es distinta, lo que conlleva a la población a una permanente prevención.
Linfoma multicéntrico en una yegua pura sangre inglesa
Authors: López García Yazmín Esperanza , López Navarro Luz Gabriela , Pimentel Mendoza Alfonso
Published: September 2022

Descripción del caso. Una yegua pura sangre inglesa de ocho años fue referida al Hospital para Équidos de la fmvz/unam con antecedentes de pérdida crónica de peso, bajo desempeño, anorexia y depresión.Hallazgos clínicos. En el examen físico general presentaba edema moderado en los miembros posteriores, melanomas principalmente en el maslo de la cola, linfonodos submandibulares aumentados de tamaño, membranas mucosas congestionadas y se le notaba severamente débil y deprimida.Pruebas de laboratorio y ultrasonografía. En la citología de la paracentesis de líquido peritoneal se observaron 99% de linfocitos y aumento de la proteína. En el ultrasonido de pulmón se observaron irregularidades en la pleura, cambio en la ecogenicidad del parénquima y broncograma aéreo, sugerentes de consolidación pulmonar. En el ultrasonido de abdomen se observó edema en colon e intestino delgado.Tratamiento y evolución. Se le administró terapia de fluidos intravenosos y se monitoreo constantemente, pero debido al rápido deterioro de la paciente, se decidió inducir eutanasia. El examen post mortem reveló una severa infiltración de linfocitos neoplásicos en múltiples órganos, confirmando el diagnóstico.Relevancia clínica. El linfoma es la neoplasia más común del sistema hematopoyético equino. Aunque el diagnóstico clínico, los resultados de laboratorio, la progresión de la enfermedad y los hallazgos histopatológicossuelen diferir de un paciente a otro, considérese como diagnóstico diferencial cuando se verifica pérdida crónica de peso, baja en el rendimiento, letargo, anorexia, edema, fiebre, linfoadenopatía periférica, cólicos recurrentes y diarrea crónica.
Fake Face Detection Using CNN
Authors: Patil Priyadarshini , Deshpande Vipul , Malge Vishal , Bevinmanchi Abhishek
Published: September 2022

Abstract: Real and Fake face recognition using CNN and deep learning is presented in the paper. Searching for the authenticity of an image with the naked eye becomes a complicated task in detecting image forgeries. The goal of this study is to evaluate how well different deep learning approaches perform. The initial stage of the proposed strategy is to train several pre-trained deep learning models on the image dataset for recognizing real and fake images to identify fake faces. In order to assess the effectiveness of these models, we consider how well they separate two classes - false and true. Regarding the models tested so far, the VGG models have the best training accuracy (86%) on VGG-16, while VGG-16 shows an excellent test set. accuracy with 10 epochs or less, which is competitively better than all other methods. The outputs of these models were examined to find out exactly
Comparative Analysis of Various Geometrical Shape Water Tanks Resting Over Ground for Same Capacity with Different Support Conditions
Authors: Aghamkar Allen , Gupta Dr. A. R.
Published: September 2022

Abstract: Water is one the most important source for humans to live. The need of water is serious and its storage is must. Water tanks are used to provide storage of water for use in many application of our day to day life. So, an appropriate analysis of these water tanks must be done. This paper concerns the study of comparative analysis between circular, square and rectangular reinforced concrete water tanks resting over ground for same capacity. The report will include the study of analysis of various shapes of water tank using Staad-Pro and comparative analysis of circular, square and rectangular water tank with different support conditions on the basis of their post processing results taken from Staad-Pro. The above mentioned points will be studied in this report and conclusion will be made on the basis of the results.
Parametric Evaluation on Reinforced Concrete Solid Slab Bridges by Staad-Pro Software
Authors: Niranjan Abhishek , Parihar Rajeev Singh , Jha Abhay Kumar , Kumar Barun , Misra Rajesh
Published: September 2022

Abstract: Designing with economy, grace, and sturdiness is the art and science of structural planning and analysis. To compete in the highly competitive market, structural designing necessitates a thorough structural analysis on which the planning is predicated. The use of software can reduce the number of man hours and efforts required for structural analysis, and an effort was made in the current study to accomplish this goal. This study's objective is to assess and design a solid-deck slab bridge using STAAD-Pro and a manual process under various loading circumstances. Additionally, STAAD-Pro, which runs through numerous load combinations, was used to check the analysis results in terms of shear, bending moment, axial force, and deflection. The highest design moments produced by the fusion of different loading scenarios.
Molecular analysis of Carbapenem resistant genes in Pseudomonas aeruginosa isolated from Baghdad hospitals
Authors: H. Salih Ali , H. Aubaid Adnan , B. Ali Ghada
Published: September 2022

Objectives: This study aimed to molecularl investigation of  prevalence the carbapenem-resistant genes in P. aeruginosa in isolates collected from Baghdad hospitals.

Methods: In a cross-sectional manner, P. aeruginosa were isolated and identified from patients who attended to Hospital in Baghdad city during the period of   December 2021 to June 2022. Genotypic characterization  of 16SrRNA gene, plasmid profile, exoA gene, carbapenem resistance gene were tested.

Results: Diagnosis of P. aeruginosa isolates was confirmed genotypically via the amplification of 16SrRNAgene with 1504 bp by using PCR amplification of genes encoding Ambler class B MBL (blaIMP, blaVIM,IMI,blaNDM, blaSPM-1, and blaGIM), and Ambler class D carbapenemase (blaOXA-23,blaOXA-24, blaOXA-40, blaOXA-48,blaOXA-50, blaOXA-51andblaOXA-58) were performed. The carbapenem resistant isolates were also evaluated for the presence of class D carbapenemase (blaOXA 50), genes by PCR.

Conclusion: This study proved that P. aeruginosa isolated had carbapenem-resistant genes that strongly correlated with antibiotic resistance according to phenotypic and genotypic characterization.
Transmisión vertical y espacial de precios en el mercado mexicano e internacional de ganado vacuno
Authors: Jaramillo Villanueva José Luis
Published: September 2022

From 2000 to 2019, the Mexican beef subsector has undergone significant structural changes; the most important was the concentration of both production and marketing stages. In 2019, the Mexican Federal Commission of Competence revealed that, Mexican households’ income diminished between 16 and 31 % due to a lack of market efficiency. In the case of meat, the reduction may be up to 98 %. In this context, the objective of this study was to examine the degree of spatial price transmission between national and international live cattle prices and the vertical transmission between live cattle prices and carcass meat prices to evaluate market efficiency. The econometric approach consists of the estimation of a vector error correction model, using monthly beef real prices, for the period 1990-2019. Findings from this research provide information for decision-makers and stakeholders in this industry: these comprehend unidirectional transmission of international beef prices to domestic beef prices and from farm price to processor price. Also point to the existence of asymmetric price transmission, which is related to whether cattle and beef prices are increasing or decreasing. Results indicate that a long-run single cointegration relationship exists between international and farmer prices, and between processor and farm price. The direction of price transmission tends to go from producers to processors and from international price to farmer price. When the international price increases, the speed of adjustment tends to be significantly slower, in contrast to when the international price decreases, resulting in a significantly faster rate of adjustment.
Evaluación bacteriana de queso artesanal Zacazonapan madurado bajo condiciones no controladas en dos épocas de producción
Authors: Sánchez-Valdés Jair Jesús , Colín-Navarro Vianey , López-González Felipe , Avilés-Nova Francisca , Castelán-Ortega Octavio Alonso , Estrada-Flores Julieta Gertrudis
Published: September 2022

Los quesos tradicionales Zacazonapan tienen características organolépticas únicas y se caracterizan por estar vinculados al territorio de origen. En el proceso de maduración se tienen numerosas variables interactivas que son responsables de los cambios físicos, químicos, biológicos y estructurales. Con el objetivo de evaluar la evolución bacteriológica de quesos artesanales durante su maduración bajo condiciones no controladas en dos épocas de producción, se colectaron muestras de leche cruda y de queso a los 0, 30, 60, 120 y 150 días de maduración. Se determinó la presencia de mohos y levaduras (MyL), bacterias mesófilas aerobias (BMA), Staphylococcus spp. (Staph), coliformes totales (CT), coliformes fecales (CF), Salmonella spp. (Salm) y Listeria spp. (List). La carga microbiana promedio fue 9.68, 9.38, 8.55 y 8.10 log10 UFC/g de queso para MyH, BMA, Staph y CT respectivamente, así como 2.68 log10 NMP/g de queso para CF. No se detectó Salm pero si List. La evolución microbiológica del queso madurado Zacazonapan presentó conteos que superan los niveles máximos de la Norma Oficial Mexicana 243 SSA1 2010.
Perfil fitoquímico, actividad antimicrobiana y antioxidante de extractos de Gnaphalium oxyphyllum y Euphorbia maculata nativas de Sonora, México
Authors: Heredia-Castro Priscilia Yazmín , García-Baldenegro Claudia Vanessa , Santos-Espinosa Alejandro , Tolano-Villaverde Iván De Jesús , Manzanarez-Quin Carmen Guadalupe , Valdez-Domínguez Ramón Dolores , Ibarra-Zazueta Cristina , Osuna-Chávez Reyna Fabiola , Rueda-Puente Edgar Omar , Hernández-Moreno Carlos Gabriel , Barrales-Heredia Susana Marlene , Sosa-Castañeda Jesús
Published: September 2022

El uso de compuestos químicos sintéticos para conservar alimentos o tratar enfermedades de origen bacteriano está limitado debido a que pueden ocasionar daños en la salud. Por ello, las industrias alimentaria y pecuaria buscan estrategias naturales para conservar alimentos y mantener la salud de los animales destinados a consumo humano. En este sentido, algunos extractos de plantas provenientes de Sonora, México podrían ser una alternativa debido a la gran diversidad de plantas y que algunas de ellas se utilizan tradicionalmente para tratar enfermedades. Por otro lado, son pocos los estudios que sustentan la actividad biológica de los extractos etanólicos de Gnaphalium oxyphyllum (E1) y Euphorbia maculata (E2). En este estudio, el contenido de fitoquímicos se determinó por espectrofotometría, la actividad antimicrobiana se determinó por difusión en agar y la actividad antioxidante se evaluó por ABTS, DPPH y FRAP. Los resultados mostraron que los extractos E1 y E2 presentaron fenoles totales, flavonoides totales, flavonas y flavonoles, flavanonas y dihidroflavonoles totales, así como, taninos totales, ácido clorogénico total y polisacáridos totales. Además, ambos extractos mostraron mayor actividad antimicrobiana contra Listeria monocytogenes ATCC 19115, Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922 y Salmonella entérica serovar Typhimurium ATCC 14028 cuando se utilizó 1 mg ml-1 (P<0.05). Además, presentaron actividad antioxidante por los métodos de ABTS, DPPH y FRAP. Por lo anterior, el potencial antimicrobiano y antioxidante de estas plantas representa una alternativa natural para controlar algunas bacterias Gram positivas y Gram negativas en la industria pecuaria, así como para la conservación de alimentos.
Evaluación de rasgos morfológicos y de rendimiento en las poblaciones de Vicia spp.
Authors: Javadi Hamideh , Salehi Shanjani Parvin , Falah Hoseini Leila , Ramazani Yeganeh Masoumeh
Published: September 2022

The study was focused on estimation of genotypic variation for the morphological and forage yield traits of some vetch genotypes to assess their breeding potential. A small-plot trial was carried out in 2018-2020 at the experimental field of the Research Institute of Forests and Rangelands, Alborz province, Iran. Fifty eight (58) vetch genotypes of Vicia spp. from the natural resources gene bank of Iran, were tested. There was significant (P<0.01) genotypic variation among populations, for all the traits measured. V.monantha (32845) produced high plant and large pods, while V. villosa (322) produced more biomass than other accessions. In the shorter growing seasons, the earliness of V. sativa var.angustifollia (4740,7243), V. sativa var.stenophylla (1862), V. villosa (315, 322) resulted in high seed yield. The principal component analysis showed that the variations observed were mainly caused by traits such as days to flowering and seed ripening and seed traits, that their contribution was important in discriminating the populations. Direct selection can also be made for the populations with high biomass yield based on the recorded performance of these populations during the field experiments. A cluster analysis of the tested vetch populations based on measured traits, at 11.49 genetic distance, created five main groups that showed the similarity of members of each group. Generally, vetch species and their populations had different growth features, phenology, forage and seed productivity. The generated information in this study gives a base for genetics variety of genus Vicia L. and could be useful for including in the future breeding programs.
Explorando la microbiota bacteriana fecal bovina en la Reserva de la Biosfera de Mapimí, norte de México
Authors: Pacheco-Torres Irene , García-De la Peña Cristina , Meza-Herrera César Alberto , Vaca-Paniagua Felipe , Díaz-Velásquez Clara Estela , Méndez-Catalá Claudia Fabiola , Tarángo-Arámbula Luis Antonio , Valenzuela-Núñez Luis Manuel , Vásquez-Arroyo Jesús
Published: September 2022

In Mexico, information on the bovine fecal microbiota (Bos taurus) is scarce. The present study describes the diversity and abundance of bacteria in fecal samples from rangeland bovines, collected in the Mapimi Biosphere Reserve in the central part of the Chihuahuan desert. Fecal samples were analysed using high-throughput next generation massive sequencing using V3-V4 16S rRNA on Illumina Miseq. A total of 17 phyla, 24 classes, 33 orders, 50 families, 281 genera, and 297 species were identified. Firmicutes and Verrucomicrobia were the most abundant phyla. The most abundant genera were Sporobacter, PAC000748_g (genera into the Ruminococcaceae family) and Eubacterium_g23. Three genera (Clostridium, Corynebacterium and Fusobacterium) and one species (Campylobacter fetus) potentially pathogenic bovine bacteria were registered. This information represents a bacteriological baseline for monitoring the grazing bovine intestinal health status, and to trace possible interactions with the fecal microbiota of native roaming wildlife in the area.
Editorial Notes: Perspectives on the Islamic Economic and Financial System in the Contemporary World
Authors: Ibrahim Azharsyah
Published: September 2022

The majority of submissions for this issue focused on the challenges faced by IBFIs as a result of the global spread of Covid-19. They discuss the trends in Islamic economics research, the importance of Islamic economics and finance to the modern economy, the performance of institutions and their employees, financial stability, waqf institutions, and the role of Islamic economics and finance in society. Only 12 of the dozen papers submitted for consideration were eventually chosen for publication. As usual, each manuscript will have to pass an initial review from our editor(s) before forwarding it to suitable reviewers. Some manuscripts would have to go through several rounds before being accepted. The reviewers' feedback was taken into consideration to provide the final decisions. Following that, the manuscripts would have to pass the editing stages, including proofreading and layout, where our editor(s) will intensely communicate with the authors if needed. It is to ensure that each published manuscript has undergone a quality check.
Controllo dei composti organici volatili mediante filtro biotrickling e un fotobioreattore tubolare
Authors: ROMANO LUCIANO
Published: September 2022

Attualmente si è continuamente esposti a sostanze potenzialmente
tossiche per la salute, come nel caso dei composti organici volatili
(COV); in questo lavoro sono state individuate le origini di queste
sostanze, i possibili danni derivati dall’esposizione con esse, oltre ad
alcune tipologie di trattamento per il loro abbattimento. Ci si è
soprattutto soffermati sul confronto tra una tecnologia biologica
convenzionale, con filtro biotrickling (BTF) ed una innovativa,
rappresentata da un fotobioreattore tubolare algale-batterico (TPBR),
prendendo in esame l’abbattimento del toluene, uno dei COV più diffusi,
appartenente alla famiglia dei BTEX. Il BTF ha supportato efficienze di
rimozione medie vicine a quelle ottenute nel TPBR al carico in ingresso
più elevato e al tempo di permanenza del gas più basso. Il BTF risulta
influenzato dalla presenza di  metaboliti secondari, a questo proposito,
integrazione fotosintetica di O2 e CO2 il consumo di microalghe ha
migliorato le prestazioni di abbattimento del toluene e la stabilità del
processo.
Seed limitation interacts with biotic and abiotic causes to constrain novel species' impact on community biomass and richness
Authors: Pichon Noémie , Kaarlejärvi Elina , Eskelinen Anu
Published: September 2022

Seed limitation can narrow down the number of coexisting plant species
and limit plant community productivity. It is also likely to constrain
community responses to changing environmental and biotic conditions. In
a 10-year full-factorial experiment of seed addition, fertilisation,
warming and herbivore exclusion, we tested how seed addition alters
community richness and biomass, and how its effects depend on seed
origin and environmental and biotic context. We found that seed addition
increased richness in all treatments, and increased community biomass
depending on nutrient addition and warming. Novel seeded species,
originally absent from the communities, increased biomass the most,
especially in fertilised plots and in the absence of herbivores, while
adding seeds of local species did not affect biomass. Our results show
that dispersal limitation can constrain the invasion of novel species
and their effects on community biomass, and demonstrate that these
relationships are contingent on trophic interactions and environmental
conditions.
Ingestible Functional Magnetic Robot with Localized Flexibility (MR-LF)
Authors: Greenwood Taylor E. , Cagle Henry , Pulver Benson , Pak On Shun , Kong Yong Lin
Published: September 2022

The integration of an ingestible dosage form with sensing, actuation and
drug delivery capabilities can enable a broad range of surgical-free
diagnostic and treatment strategies. However, the gastrointestinal (GI)
tract is a highly constrained and complex luminal construct that
fundamentally limits the size of an ingestible system. Recent
advancements in mesoscale magnetic crawlers have demonstrated the
ability to effectively traverse complex and confined systems by
leveraging magnetic fields to induce contraction and bending-based
locomotion. However, the integration of functional components (e.g.,
electronics) in the proposed ingestible system remains fundamentally
challenging. Here, we demonstrate the creation of a centralized
compartment in a magnetic robot by imparting localized flexibility
(MR-LF). The centralized compartment enables MR-LF to be readily
integrated with modular functional components and payloads, such as
commercial off-the-shelf electronics and medication, while preserving
its bidirectionality in an ingestible form factor. We demonstrate the
ability of MR-LF to incorporate electronics, perform drug delivery,
guide continuum devices such as catheters, and navigate air-water
environments in confined lumens. The MR-LF enables functional
integration to create a highly-integrated ingestible system that can
ultimately address a broad range of unmet clinical needs.

Keywords: Ingestible electronics; ingestible robots; soft
robots; magnetic robots; magnetic crawlers; drug delivery.

Corresponding author email:   yong.kong@utah.edu
A novel all-digital transmitter with power equalization and harmonic elimination
Authors: Fu Haoyang , Zhou Qiang , Zhu Lei , Chen Zhang
Published: September 2022

To reduce the loss caused by power imbalance between switched-mode power
amplifier (SMPA) units of all-digital transmitters (ADTx), this paper
proposes an all-digital transmitter structure with power equalization
and harmonic elimination. Based on the third and fifth harmonic
cancellation, this structure achieves output power equalization of SMPA
by controlling the width of 3-level sub-pulses to be the same. Moreover,
the equalization of each switch transistor is realized by outphasing
method. Finally, the feasibility of the method is verified by simulation
results. For different input signals with a carrier frequency of 200
MHz, the proposed structure achieves the same output power of each SMPA
unit.
Non-stationary Financial Time Series Forecasting Based on Meta-Learning
Authors: Hong Anqi , Gao Minghan , Gao Qiang , Peng Xiaohong
Published: September 2022

In this letter, we address the challenge in forecasting non-stationary
financial time series by proposing a meta-learning based forecasting
model equipped with a CNN predictor and a LSTM meta-learner. The model
is applied to a set of short subseries which are the result of dividing
a long non-stationary financial time series. As a result, a promising
performance can be achieved by the proposed model in terms of making
more accurate prediction than the traditional CNN predictor and AR based
forecasting models in non-stationary conditions.
Comparison of three lymph node staging methods for predicting outcome in patients with stage Ⅲ-Ⅳ hypopharyngeal squamous cell carcinoma
Authors: Wang Tian , Zhang Duo , HSUEH CHI-YAO , LAU HUI-CHING , Tao Lei , Ping Wu
Published: September 2022

Background: Lymph node ratio (LNR), log odds of positive lymph nodes
(LODDS), and the number of postoperative lymph node staging (pN) are
prognostic indicators of various cancers. However, comparison of the
prognostic values of these indicators remains unclear in hypopharyngeal
squamous cell carcinoma (HPSCC). This study aims to compare the
prognostic values of LNR, LODDS and pN in stage Ⅲ-Ⅳ HPSCC. Methods: We
conducted a retrospective study on 166 patients with stage Ⅲ-Ⅳ HPSCC.
LNR and LODDS were divided into two groups using X-tile version 3.6.1.
Univariate and multivariate analyses of the risk of overall survival
(OS) and disease-free survival (DFS) were performed using the log-rank
(Mantel-Cox) test and the Cox proportional hazards model, respectively.
We compared the prognostic value of LNR with that of LODDS and pN using
receiver operating characteristic (ROC) curves. Results: According to
the X-tile, the cut-off values are 0.11 for LNR and -0.91 for LODDS.
LNR, LODDS, and pN were significantly correlated with DFS by univariate
analysis (P < 0.05). Multivariate analysis demonstrated that
LNR was an independent prognostic factor for DFS (P < 0.01).
Multivariate analysis also revealed that postoperative tumour staging
(pT) classification, LNR, and surgical margins were independent
prognostic factors for OS. Compared with pN and LODDS, LNR showed a
stronger predictive power for DFS. Conclusion: LNR may be a better
predictor for DFS than pN and LODDS in stage Ⅲ-Ⅳ HPSCC patients. LNR in
the highest tertile (≥ 0.11) may cause poor OS and DFS. LODDS in the
highest tertile (≥-0.91) may cause poor DFS.
Ģeotelpiskās informācijas infrastruktūras īstenošana = Implementation of geospatial information infrastructure
Authors:   ,   Latvia University of Life Sciences and Technologies, Hoļms Jurijs
Published: September 2022

The aim of the PhD Thesis is to develop recommendations for improving the implementation of geospatial information infrastructure and public administration processes management in the Latvian context. Solutions for iterative metadata harvesting and downloading of information from the spatial download services registered in the Metadata Catalog of the Latvian Geospatial Data Integrator were tested and described, including direct access to geospatial data for operative decision-making and long-term spatial development planning. The PhD Thesis summarized and analyzed information on the concept of Geospatial Information Infrastructure and its scope, as well as analyzed Geospatial Information Transformation Methods, interoperability/harmonization aspects and the application of Geospatial Information Infrastructure methods. The author proposes a conceptual architecture based on Geospatial Information Infrastructure (SDI) for the Information System on Spatial Development Planning, develops a recursive algorithm for downloading geospatial data sets from geospatial data download services and develops a prototype for collecting information from global SDI Latvian segment decentralized data sources for potential centralized processing and dissemination of results. Literature review, systems analysis, classification, programming, modeling, statistical analysis and prototyping were used as research methods in the PhD Thesis. The results of the study were compiled and published in 7 peer-reviewed scientific journals and all articles were indexed in internationally cited databases. The results were reported at international scientific conferences. In addition, the following processes were developed and described: Adaptation to the Geospatial Information Infrastructure concept; Simplified data transfer scenario based on INSPIRE processes; Example of a harvesting chain; Obtaining information in portions; Process model for sustainable spatial development planning and operational decision making and Information dissemination solution’s prototype data flow process. To make the SDI idea more accessible, source codes for the most important steps of the solution’s prototype were published in the GitHub source code repository under the CC0 1.0 license. On the basis of the PhD Thesis, a new study course program for master level students “Information Technologies in Geoinformatics” was developed, as well as developed prototype will be used as a sample for practical tasks in the new study course.
Clinical Decision Support for Glycemic Management Reduces Hospital Length of Stay
Authors: Pichardo-Lowden Ariana R. , Haidet Paul , Umpierrez Guillermo E. , Lehman Erik B. , Quigley Francis T. , Wang Li , Rafferty Colleen M. , DeFlitch Christopher J. , Chinchilli Vernon M.
Published: September 2022

OBJECTIVE

Dysglycemia influences hospital outcomes and resource utilization. Clinical decision support (CDS) holds promise for optimizing care by overcoming management barriers. This study assessed the impact on hospital length of stay (LOS) of an alert-based CDS tool in the electronic medical record that detected dysglycemia or inappropriate insulin use, coined as gaps in care (GIC).

RESEARCH DESIGN AND METHODS

Using a 12-month interrupted time series among hospitalized persons aged ≥18 years, our CDS tool identified GIC and, when active, provided recommendations. We compared LOS during 6-month-long active and inactive periods using linear models for repeated measures, multiple comparison adjustment, and mediation analysis.

RESULTS

Among 4,788 admissions with GIC, average LOS was shorter during the tool’s active periods. LOS reductions occurred for all admissions with GIC (−5.7 h, P = 0.057), diabetes and hyperglycemia (−6.4 h, P = 0.054), stress hyperglycemia (−31.0 h, P = 0.054), patients admitted to medical services (−8.4 h, P = 0.039), and recurrent hypoglycemia (−29.1 h, P = 0.074). Subgroup analysis showed significantly shorter LOS in recurrent hypoglycemia with three events (−82.3 h, P = 0.006) and nonsignificant in two (−5.2 h, P = 0.655) and four or more (−14.8 h, P = 0.746). Among 22,395 admissions with GIC (4,788, 21%) and without GIC (17,607, 79%), LOS reduction during the active period was 1.8 h (P = 0.053). When recommendations were provided, the active tool indirectly and significantly contributed to shortening LOS through its influence on GIC events during admissions with at least one GIC (P = 0.027), diabetes and hyperglycemia (P = 0.028), and medical services (P = 0.019).

CONCLUSIONS

Use of the alert-based CDS tool to address inpatient management of dysglycemia contributed to reducing LOS, which may reduce costs and improve patient well-being.
Referrals to Early Specialized Rehabilitation after Traumatic Brain Injury during the Covid-19 Pandemic
Authors: Tverdal Cathrine , Brunborg Cathrine , Helseth Eirik , Andelic Nada , Koch Marte , Røe Cecilie , Aarhus Mads , Hellstrøm Torgeir
Published: September 2022

Objective: To quantify potential changes in direct referral to early specialized rehabilitation during the COVID-19 pandemic and the injury pattern of patients hospitalized with traumatic brain injury (TBI) at a level 1 trauma centre.Methods: In this registry-based study, data were retrieved from the Oslo TBI Registry-Neurosurgery and included adult patients with injury-related intracranial findings admitted to Oslo University Hospital (OUH). The study focused on a period of time when OUH was in any level of preparedness because of the COVID-19 pandemic; March 2020 to August 2021. For comparison, the study used patients hospitalized for TBI in 2018 and 2019.Results: A total of 1,310 hospitalized patients with TBI were divided into 2 groups; pre-pandemic and pandemic. Direct referral to early rehabilitation was maintained. Patient volume remained stable, and there were no differences between the groups regarding patient characteristics and acute management, although there was a significantly higher proportion of TBIs secondary to electric scooter accidents in the pandemic group. Results from univariable and multivariable logistic regression showed a multifaceted reality, but younger age, none or mild preinjury comorbidity and severe disability due to TBI at discharge from acute care remained stable strong predictors of direct referral to rehabilitation.Conclusion: For patients with moderate-severe TBI, the direct pathway to early specialized rehabilitation was maintained during 2020–21. However, the pandemic continued and the long-term impact for rehabilitation services is not yet known.
LAY ABSTRACTAfter traumatic brain injury, early rehabilitation is important in order to achieve optimal functional outcome. The COVID-19 pandemic has put the health services under pressure, and hospitals in Norway were reorganized to be able to treat a large number of patients with COVID-19. Therefore, this study investigated to what extent the transfer to early rehabilitation has been affected and whether there have been changes in volume and characteristics of patients admitted to hospital with traumatic brain injury. In conclusion, the direct pathway to early rehabilitation was maintained during the pandemic years 2020 and 2021. Moreover, there was no change in the number of hospital admissions or patient characteristics, and acute management was maintained. However, the true long-term consequences for rehabilitation are not yet known.
Investigation on the parameter dependency of the perforation process of graphite based lithium-ion battery electrodes using ultrashort laser pulses
Authors: Kleefoot Max-Jonathan , Sandherr Jens , Sailer Marc , Nester Sara , Martan Jiří , Knoblauch Volker , Kumkar Malte , Riegel Harald
Published: September 2022

Perforation of lithium-ion battery electrodes has recently become an increasing interest in science and industry. Perforated electrodes have shown improved electrochemical properties compared to conventional, nonperforated electrodes. It has been demonstrated that through perforation, the fast-charging capability and the lifetime of these batteries can be significantly improved. The electrodes for lithium-ion batteries consist of a copper foil onto which the electrode material is applied as a porous layer. This layer is mainly composed of active material particles, which are bound together by a binder phase. Here, synthetic graphite was used as an active material. Up to now, it has been shown that an advantageous and precise perforation geometry can be produced by ultrashort laser pulse ablation. Since the ablation volumes during perforation of the porous electrode material with ultrashort laser pulses are unusually high compared to solids, this work investigates the parameter dependency on the ablation mechanisms in detail. For this purpose, in particular, single-pulse ablation was investigated with respect to the ablation thresholds at different pulse durations. The pulse durations were varied over a large range from 400 fs to 20 ps. By varying the number of pulses per perforation up to 50 and the single-pulse energy up to 45 μJ, it could be shown that a homogeneous ablation down to the conductor foil through the 63 μm thick active material layer can be achieved.
Review on Q Fever in Small Ruminants and its Public Health Importance
Authors: Y Gebremedhin
Published: September 2022

Q fever is a disease caused by coxiella burnetii which is ubiquitous intracellular bacterial pathogen, with acute and chronic clinical manifestations. This bacterium is able to infect a wide range of animals, but cattle, sheep and goats are the principal reservoirs. Inhalation of contaminated aerosols is the main transmission route for humans. Q fever is a worldwide zoonosis, which may occur in sporadic as well as epidemic forms. Because it is highly infectious for humans, Q fever is an important zoonosis with veterinarian laboraratory workers, farmers and abattoir workers at risk. The spectrum of clinical manifestations in humans and animals are diverse, ranging from seroconversion without any clinical symptoms to fatal consequences. The acute infection in humans manifests as self-limiting febrile illness, pneumonia, or hepatitis, whereas endocarditis is the major manifestation in chronic cases. Infection in domestic animal is usually asymptomatic and remains unrecognized, but it may cause abortion, especially in sheep and goat. In Ethiopia, the existence of antibody against Coxiella burnetii was reported in goats and sheep slaughtered at Addis Ababa abattoir, and its peri-urban .or from milk and urine are the basis of confirmatory diagnosis of C. burnetii infection. Doxycycline and tetracycline is the recommended antibiotic for humans. Cotrimoxazole and rifampin are the drugs of choice for the patients allergic or contradicted to tetracyclines. Oxytetracycline in the last trimester of pregnancy is usually recommended for animals. Control of Q fever in humans is largely dependent upon the control of infection in animals. The risk for transmission can be decreased through attention to proper sanitation when dealing with parturient animals and ensuring proper pasteurization of milk products.
Pediatrics in the Maternity Unit at the Teaching Hospital Gabriel Touré of Mali: Results of a Year of Activities
Authors: Diakité Mamadou
Published: September 2022

Introduction : Pediatrics in maternity unit is a particular mode of practice of neonatology, which cannot be reduced to the simple transposition, in an obstetric environment, of neonatal practice performed in a pediatric environment, let alone in a neonatal resuscitation environment. Methodology : It was a retrospective study over 12 months from January 1 st to December 31 st , 2018. Data were collected from birth records, newborn resuscitation and newborn follow - up registers. The variables studied were the indication of the call for a pediatrician, the delivery route, the pediatrician's actions according to the ILCOR's recommendations, the reason for transfer to the neonatology and the fate of newborns. Results : Over the year, 3168 deliveries were made, of which 38.16% (n = 1209) by caesarean section. The pediatrician was asked for 590 deliveries that led to the management of 641 newborns. The main reason for the calls was cesarean delivery (81.4%). The main indications for Caesarean section were severe pre - eclampsia (24.1%), eclamptic crisis (21%) and scarred uterus (16.4%). For the maj ority of newborns, or 63.6% (n = 408), the management stopped at phase A of ILCOR. It continued to phase B and C in 21.5% (n = 151) and 8.4% (n = 54), respectively. Resuscitation failure was observed in 10 newborns (1.6%). In 47.1% of cases (n = 302), neonates were transferred to the neonatal department. The main reasons for transfer were preterm birth (66.2%), perinatal anoxia (15%) and respiratory distress (4.6%). In neonatology, the mortality rate was 14% (n = 42) Conclusion: The pediatric activity in the maternity unit has permitted the management of a large number of newborns from birth at Gabriel Touré Teaching Hospital. Its regular evaluation will improve it and ensure better survival of newborns
Epithelioid Hemangioendothelioma a Rare Entity Cause of Chronic Abdominal Pain: Case Report
Authors: Hala Aouroud , Meryem Aouroud , Errami Adil Ait , Oubaha Sofia , Samlani Zouhour , Krati Khadija
Published: September 2022

Epithelioid hemangioendothelioma is a rare entity with clinical, histological, and evolutionary features that are intermediate between hemangiomas and angiosarcomas; clinically features are generally unremarkable with a good general condition among patients. Histology remains the key for the diagnosis and the conservative treatment is the adequate option. We report the case of a 63 years old female, presented with chronic intermittent, atypical abdominal pain, unique atypical liver nodule with a histology compatible with an EHE and 1 year follow up without recurrence.