bluuebunny/crossref_metadata_2025 huggingface dataset:
Using the DEMATEL Method to Explore Influencing Factors for Video Communication and Visual Perceptions in Social Media
Authors: Tsai Chi-Jui , Shyr Wen-Jye
Published: November 2022

This study used expert interviews and the DEMATEL method to explore the influencing factors affecting the evaluation of the good and cognitive response of video communication and visual perception in social media and for the benefit of facilitation of the implementation in improving the overall video communication and visual quality in social media in the related fields of communication, advertising, and visual design. Correspondingly, it could provide educators and practitioners in the field with a foundation to maximize the effectiveness of allocating resources to these influencing factors. This study explored the influencing factors of video communication and visual perception in social media and evaluated the causality, relevance, and degree of materiality among different factors. The results of this study indicated that the six dimension factors, including like (X8), feeling satisfied (X9), feeling of attractiveness (X11), a good sense of shape contour (modeling) (X12), good visual characteristics (X13), and a good sense of color (X14), showed a high degree of connection (prominence) with other dimension factors. Improving the quality of these six factors could help solve the problem while promoting a good feeling about the other factors.
Exploring the Factors Affecting User Satisfaction in Poverty Alleviation Relocation Housing for Minorities through Post-Occupancy Evaluation: A Case Study of Pu’er
Authors: Bai Xue , Xie Zhaoyu , Dewancker Bart Julien
Published: November 2022

Ex-situ poverty alleviation relocation is a vital poverty alleviation measure implemented by the Chinese government. However, studies concerning design evaluation and poverty alleviation relocation houses for minorities are still scarce. Therefore, based on the post-occupancy evaluation method, this work constructs the evaluation index set of the satisfaction of ethnic minorities with their relocated houses, and takes Pu’er City, Yunnan Province, as an example for empirical research. Through correlation analysis and regression analysis, this work discusses their living satisfaction and its influencing factors. The results show that local residents have a high level of satisfaction with infrastructure and building safety. At the same time, residential design, architectural durability, regional characteristics, and other indicators significantly affect the overall satisfaction, and the satisfaction also has population differentiation relating to social and demographic characteristics. Finally, this article puts forward some suggestions to improve the living environment based on two aspects—“residential unit” and “community environment”—which provide references for the improvement and design of ESPAR communities.
New Conditions for Testing the Oscillation of Third-Order Differential Equations with Distributed Arguments
Authors: Al Themairi A. , Qaraad Belgees , Bazighifan Omar , Nonlaopon Kamsing
Published: November 2022

In this paper, we consider a certain class of third-order nonlinear delay differential equations with distributed arguments. By the principle of comparison, we obtain the conditions for the nonexistence of positive decreasing solutions as well as, and by using the Riccati transformation technique, we obtain the conditions for the nonexistence of increasing solutions. Therefore, we get new sufficient criteria that ensure that every solution of the studied equation oscillates. Asymmetry plays an important role in describing the properties of solutions of differential equations. An example is given to illustrate the importance of our results.
Using Double Integral Transform (Laplace-ARA Transform) in Solving Partial Differential Equations
Authors: Sedeeg Abdelilah Kamal , Mahamoud Zahra. I. , Saadeh Rania
Published: November 2022

The main goal of this research is to present a new approach to double transforms called the double Laplace–ARA transform (DL-ARAT). This new double transform is a novel combination of Laplace and ARA transforms. We present the basic properties of the new approach including existence, linearity and some results related to partial derivatives and the double convolution theorem. To obtain exact solutions, the new double transform is applied to several partial differential equations such as the Klein–Gordon equation, heat equation, wave equation and telegraph equation; each of these equations has great utility in physical applications. In symmetry to other symmetric transforms, we conclude that our new approach is simpler and needs less calculations.
Common Fixed Point Theorems on Orthogonal Branciari Metric Spaces with an Application
Authors: Mani Gunaseelan , Prakasam Senthil Kumar , Gnanaprakasam Arul Joseph , Ramaswamy Rajagopalan , Abdelnaby Ola A. Ashour , Khan Khizar Hyatt , Radenović Stojan
Published: November 2022

In this article, we modify the symmetry of orthogonal metric spaces and we prove common fixed point theorems via simulation functions in orthogonal Rectangular metric spaces. We also provide an illustrative example to support our results. The derived results have been applied to find analytical solutions to integral equations. The analytical solutions are verified with a numerical simulation.
Symmetry in Applied Continuous Mechanics 2022
Authors: Marin Marin , Vlase Sorin , Abbas Ibrahim A.
Published: November 2022

Symmetry leading to interesting properties of mechanical systems has interesting properties and various applications in the field of engineering [...]
Rapid and Visual Detection of Type 2 Porcine Reproductive and Respiratory Syndrome Virus by Real-Time Fluorescence-Based Reverse Transcription Recombinase-Aided Amplification
Authors: Xia Wenlong , Chen Yao , Ding Xue , Liu Xiaoming , Lu Huipeng , Guo Changming , Zhang Hua , Wu Zhijun , Huang Jing , Fan Zhongjun , Yu Shupei , Sun Huaichang , Zhu Shanyuan , Wu Zhi
Published: November 2022

Porcine reproductive and respiratory syndrome (PRRS) is one of the most important diseases that has brought significant economic losses to the swine industry worldwide. Rapid and accurate PRRS virus (PRRSV) detection is one of the key factors for PRRS prevention and control. This study developed a real-time fluorescence-based reverse transcription recombinase-aided amplification (RF-RT-RAA) method for type 2 PRRSV (PRRSV-2) detection. The RF-RT-RAA assay could be performed at 42 °C for 20 min with the optimal primers and a probe. RF-RT-RAA results could be monitored using real-time fluorescence read-out or visually observed with the naked eye using a portable blue light transilluminator. The method had a strong specificity; no cross-reaction was identified with the detected common swine viruses. Moreover, the technique yielded high sensitivity with the lowest detection limit of 101 copies/μL and exhibited good repeatability and reproductively with the coefficients of variation (CV) less than 10%. Eighty-seven clinical samples were tested using RF-RT-RAA and a commercial PRRSV-2 RT-qPCR detection kit. The coincidence rate was 100% between RF-RT-RAA (real-time fluorescence read-out) and RT-qPCR, and 97.7% between RF-RT-RAA (visually observed) and RT-qPCR. The RF-RT-RAA assay provides a new method for rapid and visual detection of PRRSV-2.
Thermostability and Immunogenicity of Genotype II Avian Orthoavulavirus (AOaV-1) Isolates from Duck (Anas platyrhynchos) and Parrot (Eclectusroratus)
Authors: Das Sangeeta , Deka Pankaj , Kakati Parikshit , Deka Pubaleem , Nath Mrinal Kumar , Kumar Aman , Ali Arfan , Sarma Mihir , Ahmed Rofique , Gogoi Sophia M. , Shome Arijit , Borah Biswajyoti , Barman Nagendra Nath , Sarma Dilip Kumar
Published: November 2022

Newcastle disease (ND) is a highly contagious viral disease of poultry causing significant economic losses worldwide. Vaccination is considered the most reliable approach to curb the economic menace that is ND, but the thermolabile nature of Newcastle disease virus (NDV) vaccination poses a significant threat to its protective efficacy. This study aimed to profile the thermostability of NDV isolates from duck (As/Km/19/44) and parrot (As/WB/19/91) and evaluate their immunogenic potential in chicks. Fusion protein cleavage site (FPCS) and phylogenetic analysis demonstrated the lentogenic nature of both the isolates/strains and classified them as class II genotype II NDV. The characterized NDV isolates were adapted in specific-pathogen-free (SPF) chicks by serially passaging. Biological pathogenicity assessment of chicken-adapted As/Km/19/44 (PSD44C) and As/WB/19/91 (PSP91C) revealed both the isolates to be avirulent with a mean death time (MDT) of more than 90 h and an intracerebral pathogenicity index (ICPI) ranging from 0.2 to 0.4. Both of the NDV isolates displayed varied thermostability profiles. PSD44C was the most thermostable strain as compared to PSP91C and the commercially available LaSota vaccine strain. The immunogenicity of PSD44C and LaSota was significantly higher than PSP91C. Based on these results, it is concluded that NDV isolate PSD44C is more thermostable and immunogenic when administered intraocularly without any adverse effects. Therefore, PSD44C is suitable for further research and vaccine development.
Characterization of Neutralizing Monoclonal Antibodies and Identification of a Novel Conserved C-Terminal Linear Epitope on the Hemagglutinin Protein of the H9N2 Avian Influenza Virus
Authors: Wang Yanan , Li Xueyang , Xu Qianru , Niu Xiangxiang , Zhang Shenli , Qu Xiaotian , Chu Hongyan , Chen Jinxuan , Shi Qianqian , Zhang Erqin , Zhang Gaiping
Published: November 2022

The H9N2 avian influenza virus (AIV) remains a serious threat to the global poultry industry and public health. The hemagglutinin (HA) protein is an essential protective antigen of AIVs and a major target of neutralizing antibodies and vaccines. Therefore, in this study, we used rice-derived HA protein as an immunogen to generate monoclonal antibodies (mAbs) and screened them using an immunoperoxidase monolayer assay and indirect enzyme-linked immunosorbent assay. Eight mAbs reacted well with the recombinant H9N2 AIV and HA protein, four of which exhibited potent inhibitory activity against hemagglutination, while three showed remarkable neutralization capacities. Western blotting confirmed that two mAbs bound to the HA protein. Linear epitopes were identified using the mAbs; a novel linear epitope, 480HKCDDQCM487, was identified. Structural analysis revealed that the novel linear epitope is located at the C-terminus of HA2 near the disulfide bond-linked HA1 and HA2. Alignment of the amino acid sequences showed that the epitope was highly conserved among multiple H9N2 AIV strains. The results of this study provide novel insights for refining vaccine and diagnostic strategies and expand our understanding of the immune response against AIV.
Perceptions of COVID-19 Maternal Vaccination among Pregnant Women and Healthcare Workers and Factors That Influence Vaccine Acceptance: A Cross-Sectional Study in Barcelona, Spain
Authors: Marbán-Castro Elena , Nedic Ivana , Ferrari Mara , Crespo-Mirasol Esther , Ferrer Laia , Noya Berta , Marin Anna , Fumadó Victoria , López Marta , Menéndez Clara , Martínez Bueno Cristina , Llupià Anna , Goncé Anna , Bardají Azucena
Published: November 2022

COVID-19 is associated with poor maternal and pregnancy outcomes. COVID-19 vaccination is recommended in Spain, yet vaccination rates in pregnancy are suboptimal. This study investigates the perceptions of pregnant women and healthcare workers (HCW) regarding COVID-19 vaccination. A web-based cross-sectional quantitative study was conducted in 2021–2022 among 302 pregnant women and 309 HCWs in the Catalan public health system. Most pregnant women (83%) and HCWs (86%) were aware of COVID-19 maternal vaccines. The recommendation of the COVID-19 vaccination by an HCW was identified as the greatest facilitator for maternal vaccine uptake, while the fear of harming the foetus was the most significant barrier reported for rejecting vaccination. HCWs recognised they received limited information and training about COVID-19 vaccination in pregnancy, which hindered them from providing informed recommendations. This study highlights that information and education on COVID-19 vaccines to pregnant women and health professionals are pivotal to ensuring informed decision-making and increasing vaccine uptake.
Long-Term CD4+ T-Cell and Immunoglobulin G Immune Responses in Oncology Workers following COVID-19 Vaccination: An Interim Analysis of a Prospective Cohort Study
Authors: Gallen Corey , Dukes Christopher W. , Aldrich Amy , Macaisa Lauren , Mo Qianxing , Cubitt Christopher L. , Pilon-Thomas Shari , Giuliano Anna R. , Czerniecki Brian J. , Costa Ricardo L. B.
Published: November 2022

We conducted a prospective study to evaluate immune responses to SARS-CoV-2 in oncology workers in which we collected blood and clinical data every 6 months. Spike-specific CD4+ T-cells and immunoglobulin G responses were measured using interferon-gamma enzyme-linked immunosorbent spot and enzyme-linked immunosorbent assay, respectively. Sixty (81%) vaccinated and 14 (19%) unvaccinated individuals were enrolled. CD4+ T-cell responses of those individuals currently naturally infected were comparable to those who were 6 months from receiving their last dose of the vaccine; both responses were significantly higher than among those who were unvaccinated. Unvaccinated participants who became vaccinated while in the study showed a significant increase in both types of spike-specific immune responses. Previously vaccinated individuals who received a third dose (booster) showed a similar response to the spike protein. However, this response decreases as soon as 3 months but does not dip below the established response following two doses. Response to variants of concern B.1.617.2 (Delta) and B.1.1.529 (Omicron) also increased, with the Omicron variant having a significantly lower response when compared to Delta and the wild type. We conclude that antibody and T-cell responses increase in oncology workers after serial vaccination but can wane over time
Single-Shot ChAd3-MARV Vaccine in Modified Formulation Buffer Shows 100% Protection of NHPs
Authors: Finch Courtney L. , King Thomas H. , Alfson Kendra J. , Albanese Katie A. , Smith Julianne N. P. , Smock Paul , Jakubik Jocelyn , Goez-Gazi Yenny , Gazi Michal , Dutton John W. , Clemmons Elizabeth A. , Mattix Marc E. , Carrion Ricardo , Rudge Thomas , Ridenour Alex , Woodin Sovann F. , Hunegnaw Ruth , Sullivan Nancy J. , Xu Rong
Published: November 2022

Marburg virus (MARV) is a virus of high human consequence with a case fatality rate of 24–88%. The global health and national security risks posed by Marburg virus disease (MVD) underscore the compelling need for a prophylactic vaccine, but no candidate has yet reached regulatory approval. Here, we evaluate a replication-defective chimpanzee adenovirus type 3 (ChAd3)-vectored MARV Angola glycoprotein (GP)-expressing vaccine against lethal MARV challenge in macaques. The ChAd3 platform has previously been reported to protect against the MARV-related viruses, Ebola virus (EBOV) and Sudan virus (SUDV), and MARV itself in macaques, with immunogenicity demonstrated in macaques and humans. In this study, we present data showing 100% protection against MARV Angola challenge (versus 0% control survival) and associated production of GP-specific IgGs generated by the ChAd3-MARV vaccine following a single dose of 1 × 1011 virus particles prepared in a new clinical formulation buffer designed to enhance product stability. These results are consistent with previously described data using the same vaccine in a different formulation and laboratory, demonstrating the reproducible and robust protective efficacy elicited by this promising vaccine for the prevention of MVD. Additionally, a qualified anti-GP MARV IgG ELISA was developed as a critical pre-requisite for clinical advancement and regulatory approval.
A Systematic Review on Vaccine Hesitancy in Black Communities in Canada: Critical Issues and Research Failures
Authors: Cénat Jude Mary , Noorishad Pari-Gole , Bakombo Schwab Mulopo , Onesi Olivia , Mesbahi Aya , Darius Wina Paul , Caulley Lisa , Yaya Sanni , Chomienne Marie-Hélène , Etowa Josephine , Venkatesh Vivek , Dalexis Rose Darly , Pongou Roland , Labelle Patrick R.
Published: November 2022

Black communities have been disproportionately impacted by Coronavirus Disease 2019 (COVID-19) in Canada, in terms of both number of infections and mortality rates. Yet, according to early studies, vaccine hesitancy appears to be higher in Black communities. The purpose of this systematic review is to examine the prevalence and factors associated with vaccine hesitancy in Black communities in Canada. Peer-reviewed studies published from 11 March 2020 to 26 July 2022, were searched through eleven databases: APA PsycInfo (Ovid), Cairn.info, Canadian Business & Current Affairs (ProQuest), CPI.Q (Gale OneFile), Cochrane CENTRAL (Ovid), Embase (Ovid), Érudit, Global Health (EBSCOhost), MEDLINE (Ovid), and Web of Science (Clarivate). Eligible studies were published in French or English and had empirical data on the prevalence or factors associated with vaccine hesitancy in samples or subsamples of Black people. Only five studies contained empirical data on vaccine hesitancy in Black individuals and were eligible for inclusion in this systematic review. Black individuals represented 1.18% (n = 247) of all included study samples (n = 20,919). Two of the five studies found that Black individuals were more hesitant to be vaccinated against COVID-19 compared to White individuals, whereas the other three found no significant differences. The studies failed to provide any evidence of factors associated with vaccine hesitancy in Black communities. Despite national concerns about vaccine hesitancy in Black communities, a color-blind approach is still predominant in Canadian health research. Of about 40 studies containing empirical data on vaccine hesitancy in Canada, only five contained data on Black communities. None analyzed factors associated with vaccine hesitancy in Black communities. Policies and strategies to strengthen health research in Black communities and eliminate the color-blind approach are discussed.
Predicting Chlorine and Trihalomethanes in a Full-Scale Water Distribution System under Changing Operating Conditions
Authors: Absalan Faezeh , Hatam Fatemeh , Barbeau Benoit , Prévost Michèle , Bichai Françoise
Published: November 2022

Predicting free chlorine residual and Trihalomethanes (THMs) in water distribution systems (DS) is challenging, given the variability and imprecise description of the chlorination conditions prevailing in full-scale systems. In this work, we used the variable reaction rate constant (VRRC) model, which offers the advantage of describing variable applied dosage and rechlorination conditions without the need for model recalibration. The VRRC model successfully predicted chlorine decay and THMs formation in ammonia-containing water at the lab scale. Comparing the goodness of fit results showed a better fit by the VRRC model than the 1st-order and an equally good fit compared to the parallel 1st-order model. However, the independence of the VRRC coefficients upon chlorine dosage made it a better choice for full-scale implementation than the parallel 1st-order model. Chlorine and THMs predictions in the DS were performed in 22 locations from a full-scale DS in southern Quebec (Canada). Chlorine predictions by VRRC were conducted in the spring and fall of 2021 under changing water quality conditions (temperature, DOC, dosage). With a prediction target of 0.1 mg/L absolute error, the VRRC model met this target in 77% of the points in the spring and 73% in the fall. While the predictions were comparable and slightly better than those of the 1st-order model, the main advantage of the VRRC was its applicability under variable dosage and rechlorination conditions (e.g., booster chlorination). THMs predictions in the DS were successfully performed in fall 2021. While 91% of the nodes had less than 5 μg/L of absolute prediction error with the VRRC model, the 1st-order model only met this target in 1 out of 22 points. In addition to its high precision, the VRRC can predict THMs using only the lab scale experiments for model parametrization. This enables small utilities with limited resources to predict the possibility of THMs non-compliances under changing water quality conditions with simple lab-based experiments. Changing climatic conditions can deteriorate drinking water quality, raise regulatory concerns for chlorine and THMs, and threaten public health. Water utilities can use the simple approach proposed in this work to assess the possibility of non-compliance under changing conditions. Moreover, the efficiency of different interventions or mitigation strategies to resolve or avoid non-compliance can be evaluated with this approach.
Towards Understanding Factors Affecting Arsenic, Chromium, and Vanadium Mobility in the Subsurface
Authors: Peel Hannah R. , Balogun Fatai O. , Bowers Christopher A. , Miller Cass T. , Obeidy Chelsea S. , Polizzotto Matthew L. , Tashnia Sadeya U. , Vinson David S. , Duckworth Owen W.
Published: November 2022

Arsenic (As), chromium (Cr), and vanadium (V) are naturally occurring, redox-active elements that can become human health hazards when they are released from aquifer substrates into groundwater that may be used as domestic or irrigation source. As such, there is a need to develop incisive conceptual and quantitative models of the geochemistry and transport of potentially hazardous elements to assess risk and facilitate interventions. However, understanding the complexity and heterogeneous subsurface environment requires knowledge of solid-phase minerals, hydrologic movement, aerobic and anaerobic environments, microbial interactions, and complicated chemical kinetics. Here, we examine the relevant geochemical and hydrological information about the release and transport of potentially hazardous geogenic contaminants, specifically As, Cr, and V, as well as the potential challenges in developing a robust understanding of their behavior in the subsurface. We explore the development of geochemical models, illustrate how they can be utilized, and describe the gaps in knowledge that exist in translating subsurface conditions into numerical models, as well as provide an outlook on future research needs and developments.
Effects of Long-Term High Carbonate Alkalinity Stress on the Ovarian Development in Exopalaemon carinicauda
Authors: Zhang Xiuhong , Wang Jiajia , Wang Chengwei , Li Wenyang , Ge Qianqian , Qin Zhen , Li Jian , Li Jitao
Published: November 2022

Saline–alkaline water limits the growth and survival of aquatic animals due to its high carbonate alkalinity, high pH, and various ion imbalances. The ridgetail white prawn Exopalaemon carinicauda is strongly adaptable to the saline–alkaline water, making it an excellent candidate species for large-scale aquaculture in saline–alkaline areas. To explore the effect of long-term high carbonate alkalinity stress on ovarian development in E. carinicauda for assisting the development of saline–alkaline aquaculture, we performed ovary histology analysis and RNA–sequencing of the eyestalk and ovary in order to compare the transcriptomic responses of individuals in high carbonate alkalinity (8 mmol/L) with a control group (2 mmol/L) for 60 days. It was found that high carbonate alkalinity stress resulted in a loose arrangement of oogonia and a small number of surrounding follicular cells. A total of 1102 differentially expressed genes (DEGs) in ovary tissue were identified under high carbonate alkalinity stress, and the 18 important DEGs were associated with ovarian development. The majority of the DEGs were enriched in ECM–receptor interaction, Folate biosynthesis, the FoxO signaling pathway, insect hormone biosynthesis, and lysosome, which were involved in the ovarian development of E. carinicauda. A total of 468 DEGs were identified in eyestalk tissue under high carbonate alkalinity stress, and the 13 important DEGs were associated with ovarian development. KEGG enrichment analysis found that ECM–receptor interaction, folate biosynthesis, lysosome, metabolic pathways, and retinol metabolism may be involved in the ovarian development under high carbonate alkalinity stress. Our results provide new insights and reveal the genes and pathways involved in the ovarian development of E. carinicauda under long-term high carbonate alkalinity stress.
Water Policy Evaluation Based on the Multi-Source Data-Driven Text Mining: A Case Study of the Strictest Water Resource Management Policy in China
Authors: Cheng Zhe , Wang Nina , Zhao Yuntong , Cheng Le , Song Tao
Published: November 2022

The strictest water resources management (SWRM) policy is a critical policy to address China’s severe water shortage and pollution problems, and aims to promote sustainable water development and water governance. Based on data mining from multiple sources, including policy text from the strictest water resource management policy from 2011 to 2021, the reports of major media websites, and the Baidu Index, this study used the ROST-CM6 text-analysis tool to analyze the policy content, public opinion, and public perception of the strictest water resources management policy quantitatively and visually. The results found that the policy text and public-opinion are given high attention to the water resources assessment, water control management, and water resources protection, but the policy text focuses on the macro level, and pays more attention to national development and long-term planning. The public opinion belongs to the micro level and is more economic, and there is a certain degree of media bias. With notable regional disparities, the general public’s opinion of the harshest water resource management policy has been rising every year. This research adds to the global body of knowledge on water governance, and serves as a guide for Chinese and other governments looking to improve their water resource management strategies.
Evaluating the Impact of Climate Change on the Stream Flow in Soan River Basin (Pakistan)
Authors: Ismail Muhammad , Ahmed Ehtesham , Peng Gao , Xu Ruirui , Sultan Muhammad , Khan Farhat Ullah , Aleem Muhammad
Published: November 2022

The global hydrological cycle is susceptible to climate change (CC), particularly in underdeveloped countries like Pakistan that lack appropriate management of precious freshwater resources. The study aims to evaluate CC impact on stream flow in the Soan River Basin (SRB). The study explores two general circulation models (GCMs), which involve Access 1.0 and CNRM-CM5 using three metrological stations (Rawalpindi, Islamabad, and Murree) data under two emission scenarios of representative concentration pathways (RCPs), such as RCP-4.5 and RCP-8.5. The CNRM-CM5 was selected as an appropriate model due to the higher coefficient of determination (R2) value for future the prediction of early century (2021–2045), mid-century (2046–2070), and late century (2071–2095) with baseline period of 1991–2017. After that, the soil and water assessment tool (SWAT) was utilized to simulate the stream flow of watersheds at the SRB for selected time periods. For both calibration and validation periods, the SWAT model’s performance was estimated based on the coefficient of determination (R2), percent bias (PBIAS), and Nash Sutcliffe Efficiency (NSE). The results showed that the average annual precipitation for Rawalpindi, Islamabad, and Murree will be decrease by 43.86 mm, 60.85 mm, and 86.86 mm, respectively, while average annual maximum temperature will be increased by 3.73 °C, 4.12 °C, and 1.33 °C, respectively, and average annual minimum temperature will be increased by 3.59 °C, 3.89 °C, and 2.33 °C, respectively, in early to late century under RCP-4.5 and RCP-8.5. Consequently, the average annual stream flow will be decreased in the future. According to the results, we found that it is possible to assess how CC will affect small water regions in the RCPs using small scale climate projections.
Agroclimatic Zone-Based Analysis of Rainfall Variability and Trends in the Wabi Shebele River Basin, Ethiopia
Authors: Toni Abebe Teklu , Malcherek Andreas , Kassa Asfaw Kebede
Published: November 2022

The amount and annual distribution of rainfall caused a major socioeconomic and environmental problem where rainfed agriculture is predominant. This study assessed the long-term variability and trends of rainfall in the Wabi Shebele River Basin (WSRB), Ethiopia. The basin was discretized into 9 local agroclimatic zones (ACZ) based on annual rainfall and elevation. The coefficient of variation (CV) was used to check the variability of rainfall while modified Mann-Kendall (MK) and Innovative Trend Analysis (ITA) methods were used to detect rainfall trends. For each ACZ, stations with long-term records and less than 10% of missing data were selected for further analysis. The mean annual rainfall in the basin ranges from 227.2 mm to 1047.4 mm. The study revealed most of the ACZs showed a very high variation in Belg/Spring rainfall (CV% > 30) than Kiremt/Summer and annual rainfall. Seasonal and annual rainfall trend analysis revealed that no uniform trend was detected in all ACZs. However, most of ACZs in the arid and semi-arid areas showed a non-significant decreasing trend in annual rainfall. From seasonal analysis, Belg and Kiremt rainfall showed relatively decreasing and increasing trends respectively. In comparison, a similar result was observed using MK and ITA methods.
Evaluación de la sostenibilidad de cuencas hidrográficas. Estudio de caso: Cuenca del Chili, Arequipa–Perú
Authors: López Ramos Diego Rodrigo , Bocardo Delgado Edwin Fredy
Published: November 2022

El informe Brundtland introdujo el concepto de desarrollo sostenible como un objetivo a alcanzar por la sociedad para su supervivencia. A partir de ello diversos científicos ha desarrollado métodos e índices para poder medir la sostenibilidad. Aplicar estos índices en la gestión integral de recursos hídricos permite, no solo evaluar el estado actual del recurso, sino obtener información muy importante para que las autoridades competentes tomen decisiones para la sostenibilidad de este. Uno de los índices más usados por los investigadores es el Índice de Sostenibilidad de Cuencas (ISC), índice aplicado en diversas cuencas a nivel mundial. El objetivo de la presente investigación es determinar la sostenibilidad de la cuenca hidrográfica del río Chili ubicada en la ciudad de Arequipa-Perú. Se aplicó la metodología del Índice de Sostenibilidad de Cuencas para desarrollar un marco de evaluación de la sostenibilidad de la cuenca y, a través de un proceso sistemático, se aplicaron los indicadores correspondientes. Los resultados de la evaluación proporcionan a los responsables de la formulación de políticas y los administradores de recursos hídricos una visión integral de la cuenca, que puede utilizarse para respaldar las políticas de gestión integrada de cuencas fluviales. Asimismo, la metodología propuesta puede ser utilizada para determinar la sostenibilidad de cuencas con condiciones similares a la cuenca objeto de estudio.
Perfil químico y capacidad antioxidantes de hierbas aromáticas del sur de Chile con fines medicinales
Authors: Flores Calderón Corina , Seperiza Wittwer Astrid , Florez Mendez Jennyfer
Published: November 2022

Al pasar de los años existe una creciente preocupación sobre la prevención de enfermedades crónicas y el envejecimiento, lo que ha llevado a los consumidores a interesarse y conocer más sobre el tipo de alimentación y las propiedades que presentan las hierbas aromáticas ancestrales para ser utilizadas como infusiones debido a los beneficios para la salud, o para dar sabor, color y aroma a los alimentos. Del mismo modo, también se han utilizado para la conservación de alimentos y bebidas principalmente debido a los compuestos antioxidantes que poseen. El objetivo de este estudio fue evaluar la capacidad antioxidante, principios activos (ácido cafeico y ácido rosmarinico) y Análisis proximal de ocho hierbas aromáticas liofilizadas del sur de chile: hierbabuena, menta, romero, lavanda, melisa, malvarrosa, tomillo y caléndula. La capacidad antioxidante se realizó mediante el método ORAC Este método es un ensayo que mide la capacidad de un compuesto para atrapar el radical peróxilo, mediante un mecanismo de transferencia de un átomo de hidrógeno HAT. Los principios activos por cromatografía líquida de alta eficiencia con detector de arreglo de diodos HPLC-DAD y los análisis proximales (proteínas, grasa, carbohidratos, cenizas y energía) en base a los métodos descritos por la AOAC (Association of Offical Analytical Chemistry). Los resultados obtenidos demuestran que la menta presenta mayor capacidad antioxidante en comparación con el resto de hierbas analizadas (71.542,90 ?moles ET/100g), seguido por malvarrosa y por tomillo. En cuanto a principios activos, la hierbabuena fue la que presento mayor cantidad de ambos compuestos (8 mg/g p.s. de ácido cafeico y 33 mg/g p.s. de ácido rosmarinico), seguido por lavanda para ácido cafeico y por tomillo para acido rosmarinico. En relación a análisis proximal, los resultados para proteína variaron entre 6,62 y 20,78 g/100g, para lavanda y hierba buena respectivamente. Se puede concluir que las hierbas aromáticas del sur de Chile han arrojado altos valores para capacidad antioxidante y principios activos, lo que aporta a potenciales usos y beneficios en la salud humana.
Sistema Web para los procesos administrativos y de producción en viveros del Cantón Milagro
Authors: Mayorga Vásquez Luis Carlos , Riccardi Martillo Gustavo Andrés , Bermeo Almeida Oscar Xavier , Guevara Arias Verónica Isabel
Published: November 2022

El uso de las TIC genera cambios en la gestión de pequeñas y medianas empresas; pero en los viveros del cantón Milagro, se realizan los procesos sin respaldo de la tecnología. Entonces, el objetivo fue determinar el impacto de la aplicación de un sistema web diseñado para la optimización de los procesos administrativos y de producción en los viveros del cantón Milagro. La investigación del tipo aplicada tecnológica, utilizó la metodología de software libre en combinación con PostgreSQL 10, PYTHON 3.9 y DJANGO 3.1.2. La población fue de 86 propietarios y 64 clientes. Para la recolección de datos se utilizó la encuesta y el cuestionario. Los resultados muestran la satisfacción de los clientes y trabajadores del vivero con el uso del sistema web por la mejora del servicio. Se concluye que la aplicación del sistema web optimizó los procesos administrativos y los procedimientos de producción de plantas en los viveros.
Assistência de enfermagem ao neonato com cardiopatia congênita – uma revisão integrativa
Authors: Santos Evylla Kethlly Almeida , Lins Izadora Vanderlei de Gusmão , Santos Tamyssa Simões dos
Published: November 2022

Introdução: A cardiopatia em neonatos é caracterizada por alguma malformação ou má funcionamento no coração do recém-nascido - RN, comprometendo o funcionamento hemodinâmico cardiovascular e em alguns casos, ocasionando em morte. É suspeito que a criança possui algum problema relacionado quando em algumas horas após o nascimento a mesma apresenta baixo débito sistêmico, taquipneia progressiva, palidez cutânea ou redução dos pulsos centrais. Objetivo: O presente estudo tem por finalidade apresentar a assistência de enfermagem prestada em neonatos com cardiopatia cogênita. Método: A coleta de dados foi realizada através de artigos publicados nos últimos 10 anos nas bases de dados: Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS); Scientific Electronic Library Online (SciELO) Biblioteca Virtual em Saúde (BVS) e Medical Literature Analysis and Retrievel System Online (MEDLINE).   Resultados: A amostra foi composta por 10 artigos e as categorias que permitiram uma melhor apresentação das evidências científicas foram divididas em dois eixos: Gravidade de neonatos portadores de DDC sem assistência devida e Assistência de enfermagem com RN portador de cardiopatia congênita. Conclusão: Conclui-se que através dos estudos que a Assistencia de enfermagem é de extrema importancia para o diagnóstico e o tratamento do neonato de forma eficaz, atuando de forma primordial na patologia e em alguns casos, no diagnóstico precoce.
Coevolution of Myoelectric Hand Control under the Tactile Interaction among Fingers and Objects
Authors: Kuroda Yuki , Yamanoi Yusuke , Togo Shunta , Jiang Yinlai , Yokoi Hiroshi
Published: November 2022

The usability of a prosthetic hand differs significantly from that of a real hand. Moreover, the complexity of manipulation increases as the number of degrees of freedom to be controlled increases, making manipulation with biological signals extremely difficult. To overcome this problem, users need to select a grasping posture that is adaptive to the object and a stable grasping method that prevents the object from falling. In previous studies, these have been left to the operating skills of the user, which is extremely difficult to achieve. In this study, we demonstrate how stable and adaptive grasping can be achieved according to the object regardless of the user’s operation technique. The required grasping technique is achieved by determining the correlation between the motor output and each sensor through the interaction between the prosthetic hand and the surrounding stimuli, such as myoelectricity, sense of touch, and grasping objects. The agents of the 16-DOF robot hand were trained with the myoelectric signals of six participants, including one child with a congenital forearm deficiency. Consequently, each agent could open and close the hand in response to the myoelectric stimuli and could accomplish the object pickup task. For the tasks, the agents successfully identified grasping patterns suitable for practical and stable positioning of the objects. In addition, the agents were able to pick up the object in a similar posture regardless of the participant, suggesting that the hand was optimized by evolutionary computation to a posture that prevents the object from being dropped.
INFLUENCE OF COMPUTED TOMOGRAPHY PARAMETERS ON THE RADIOTHERAPY PLAN CALCULATION
Authors: Tinjak Enis , Beganovic Adnan , Smajlbegovic Velda , Julardzija Fuad , Sehic Adnan , Prevljak Sabina , Metlic Branka , Salkica Nusret , Topcagic Muhamed
Published: November 2022

Contouring, planning and dose calculation in treatment planning systems (TPS) are based on computedtomography (CT) images. Therefore, it is important to have developed, optimized and adapted scanning protocolsfor specific anatomic regions and special radiotherapy modalities such as stereotactic radiosurgery (SRS). The aimof this study was to determine influence of tube voltage, field of view size (FOV) and reconstruction kernels on CTnumbers and the resulting radiotherapy (RT) dose calculation.This study was performed at Clinic of Oncology, Clinical Center University of Sarajevo. Verification electrondensity and CT number values was performed using CIRS Thorax 002LFC phantom, while anthropomorphic CIRS038 phantom for stereotactic end-to-end verification was used for the purpose of dose plan calculation analysis withlarge bore CT simulator Canon Aquillion LB.The significant correlation between the tube voltage and the measuredvalues of CT numbers is significant for all materials (p < 0.05), except for water (p = 0.310). No significantcorrelation between FOV and obtained values of CT numbers was found in any of the evaluated tissue equivalentmaterials. Evaluating the impact of reconstruction kernels on Hounsfield units (HU), significant deviations werefound for the FC62, FC68 and FC07 reconstruction kernels. Also, analyzing the influence of reconstruction kernelson the RT dose calculation, the extreme values are associated with Dmin/D in PTV for kernels FC41 and FC68, wheredeviations from the values obtained using the baseline scanning parameters were -1.3% and -1.9%. For deviation of1 HU in muscle tissue of CIRS 002LFC, the calculated Dmin/D in PTV of CIRS STEEV phantom will reduce by0.79%. Similarly, the reduction of D₉₈ and D₂ would be 6.8 cGy and 3.03 cGy for 1 HU, respectively. Change of thereconstruction kernels caused differences of 0.4% in Dmin/D calculation in clinical target volume (CTV).CT scanning and reconstruction parameters may affect Hounsfield units, which could have an impact on dosecalculations in RT plan. Hence, it is recommended to standardize the scanning protocol used in calibration curvegeneration for TPS. One should avoid use of different tube voltages and kernels, while according to this study, thechange of FOV will have no impact on dose calculations
INDUCCIÓN DEL TALLO FLORAL DE LECHUGA (Lactuca sativa L.) VARIEDAD CAPITATA CON AG3 Y SU EFECTO EN LA PRODUCCIÓN DE SEMILLA
Authors: Ayala-Hernández J. Jorge , Sahagún-Castellanos Jaime , Cruz-Garza Roberto Ángel
Published: November 2022

En la producción de lechuga (Lactuca sativa L.), uno de los insumos más caros en México es la semilla ya que en su totalidad es de importación. A nivel comercial se hace uso de AG3 para inducir el tallo floral, florecimiento y aumento en rendimiento de semilla; sin embargo, se desconoce la respuesta de la planta a la acción hormonal de este producto en las condiciones de Valles Altos. Por esta razón se realizó la presente investigación en el ciclo primavera-verano en 1996, en Chapingo Méx., Con el fin de determinar el efecto de cinco concentraciones de AG3 (10, 20, 30, 40 y 50 ppm) en tres etapas de aplicación (8 y 12 hojas, 100 % de la dosis; 8 y 12 hojas, 50 % de la dosis) sobre el florecimiento y rendimiento de semilla de lechuga Var. Capitata Cv. Grandes Lagos 407. Los dos factores fueron evaluados en un experimento de campo usando un diseño de bloques completos al azar con arreglo factorial 5 x 3 con cuatro repeticiones. Los resultados fueron: a) Con 40 ppm (100 % de la dosis) en 8 hojas, el tallo floral emergió más pronto (78 días después de la siembra) que con el resto de los tratamiento; b) Respecto a la forma de aplicación el mayor rendimiento de semilla (114 kg ha-1) se obtuvo con la aplicación en dosis fraccionada (50 %) en 8 y 12 hojas verdaderas y c) El mayor rendimiento (122 kg ha-1) de semilla se obtuvo con la aplicación de 40 ppm de AG3 en forma fraccionada (aplicando 50 % de la dosis en 8 y el otro 50 % en 12 hojas verdaderas).
MANTENIMIENTO DE LA IDENTIDAD Y DESCRIPCIÓN DE LA VARIEDAD DE MAÍZ: CP-V-20
Authors: Vera-Coca Jhonny , Estrada-Gómez Julio Arturo , Carballo-Carballo Aquiles , Castillo-González Fernando
Published: November 2022

Con el propósito de constatar su mantenimiento varietal y describir la variedad CP-V-20, de maíz (Zea mays L.) en 1997 en Montecillo, Méx. se compararon cinco ciclos de mantenimiento mediante selección familial de medios hermanos, respecto a dos orígenes de la variedad ancestro Huamantla (V-23) empleando descriptores cuantitativos y cualitativos. Los primeros relacionados con espiga y rendimiento presentaron variación en los siete tratamientos y diferencias significativas en las medias respectivas. En los caracteres cualitativos se calculó la moda y se observaron ligeras diferencias entre tratamientos; sin embargo, la mayor variación en ambos casos se detectó mediante el análisis de componentes principales, donde para los caracteres cuantitativos: longitud y ancho de la primera hoja, número de macollos, longitud de entrenudos arriba y debajo de la mazorca, diámetro de tallo, longitud de espiga y de su pedúnculo, floración masculina y femenina, altura de planta, número de mazorcas/planta, diámetro y peso de mazorca, número de hileras y granos por mazorca, peso de grano y olote entre otros, fueron los descriptores que más contribuyeron a la variación mostrada. Para los cualitativos: coloración de la vaina en plántula, pubescencia en el margen de la hoja, antocianinas en la base de las glumas, forma de la espiga, posición de ramas laterales, disposición de hileras en mazorca y forma de la corona del grano, los cuales determinaron diferencias entre orígenes. Las conclusiones fueron: Hubo cambios de CP-V-20 respecto a Huamantla (V-23) para caracteres cuantitativos. En los cualitativos sólo diferencias muy pequeñas, posiblemente debido a la medición con valores de escala. El análisis de componentes principales determinó que 18 variables cuantitativas contribuyeron a la variación observada entre los siete materiales estudiados y de las variables cualitativas únicamente ocho fueron importantes en el análisis de variación.
CARACTERIZACIÓN DE LOS EXTENSIONISTAS DEL PROGRAMA ELEMENTAL DE ASISTENCIA TÉCNICA EN ZACATECAS, MÉXICO
Authors: Galindo-González Guillermo , Gómez-Aguirre Guillermo , Tabares-Rodríguez Wilfredo César
Published: November 2022

Este estudio, llevado a cabo en el segundo semestre de 1997 en el estado de Zacatecas, México, tuvo como objetivo caracterizar a los extensionistas que laboran en el Programa Elemental de Asistencia Técnica, de acuerdo con: características personales, formación académica, experiencia profesional, recursos para la acción, renumeración y dependientes económicos y expectativas ante el trabajo. Para su realización, de una población total de 417 agentes de cambio, se tomó una muestra aleatoria integrada por 49 unidades maestrales; además, se diseño y aplicó un cuestionario para recopilar la información de interés. En los resultados se observó lo siguiente: a) es variada la capacitación que recibieron los extensionistas en los últimos dos años; b) requieren información sobre control de plagas y enfermedades en cultivos, principalmente; c) es mediana la experiencia que tienen para el desarrollo de actividades de asistencia técnica; d) su relación con el entorno institucional es mediana; e) se presentan fuertes limitantes para que éstos puedan desarrollar su trabajo eficientemente, entre los que destaca la falta de interés por parte de losproductores.
EFECTO DE LA ELIMINACIÓN DE ÓRGANOS SOBRE LA PRODUCCIÓN Y CALIDAD DE FRUTOS DE FRESA (Fragaria x ananassa Duch.) cv. FERN
Authors: Vázquez-Gálvez Gilberto , Livera-Muñoz Manuel , González-Hernández Víctor Arturo , Muratalla-Lua Alfonso
Published: November 2022

Se estudió el efecto de la eliminación de flores, estolones y hojas sobre la producción de fruto y sus componentes en fresa (Fragaria x ananassa Duch.) cv Fern, de fotoperíodo neutro, cultivada en Chapingo, México, mediante trasplante de plantas refrigeradas a una densidad inicial de 90, 000 plantas por hectárea. La eliminación total de estolones provocó un incremento promedio de 61 y 76 % en el número de coronas y área foliar por planta respectivamente. Tal efecto se reflejó en una ganancia promedio de 77 % en la producción del fruto por planta y del 14 % en el peso medio del fruto. En cambio, la eliminación de flores durante los primeros dos meses causó perdidas severas de la producción sólo cuando se dejaron los estolones en la planta, pero no cuando éstos también se eliminaron. La defoliación, probada en plantas podadas de flores y estolones, ocasionó una pérdida del 17 % en la producción.
La construcción de la ciencia económica: Una mirada a partir de las contribuciones de los Premios Nobel
Authors: Mendieta Ossio Pablo
Published: November 2022

La ciencia económica como tal es reciente, puesto que tiene menos de tres siglos y medio de antigüedad como tal. De ser una disciplina inicialmente filosófica, actualmente tiene instrumental lógico y matemático que la distingue de otras ciencias sociales. Su actual carácter fue forjado principalmente por las contribuciones de economistas de los últimos cien años. Desde 1969, el Premio Nobel de Economía no sólo ha reconocido el aporte de quienes crearon estos modelos de pensamiento, sino los descubrimientos realizados que hacen de la economía una ciencia como tal. Este artículo revisa cómo sus aportes han forjado las principales áreas del conocimiento económico, proveyendo una mirada global de la ciencia y sus tendencias.