2,023 results match your criteria belonging categories


Genetic diversity and population structure of date palms (Phoenix dactylifera L.) in Ethiopia using microsatellite markers.

J Genet Eng Biotechnol 2021 May 7;19(1):64. Epub 2021 May 7.

Department of Biosciences, COMSATS University of Islamabad, Islamabad, Pakistan.

Background: Date palm tree (Phoenix dactylifera L.) is a perennial monocotyledonous plant belonging to the Arecaceae family, a special plant with extraordinary nature that gives eminent contributions in agricultural sustainability and huge socio-economic value in many countries of the world including Ethiopia. Evaluation of genetic diversity across date palms at DNA level is very important for breeding and conservation. Read More

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Measuring complexity in organisms and organizations.

R Soc Open Sci 2021 Mar 17;8(3):200895. Epub 2021 Mar 17.

Physiologie de la Reproduction et des Comportements, CNRS, INRAE, Université de Tours, Nouzilly, France.

While there is no consensus about the definition of complexity, it is widely accepted that the ability to produce uncertainty is the most prominent characteristic of complex systems. We introduce new metrics that purport to quantify the complexity of living organisms and social organizations based on their levels of uncertainty. We consider three major dimensions regarding complexity: diversity based on the number of system elements and the number of categories of these elements; flexibility which bears upon variations in the elements; and combinability which refers to the patterns of connection between elements. Read More

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β-N-Methylamino-L-Alanine (BMAA) Causes Severe Stress in sp. PCC 7120 Cells under Diazotrophic Conditions: A Proteomic Study.

Toxins (Basel) 2021 04 30;13(5). Epub 2021 Apr 30.

Scientific-Research Institute of Physical-Chemical Medicine, 119435 Moscow, Russia.

Non-proteinogenic neurotoxic amino acid β-N-methylamino-L-alanine (BMAA) is synthesized by cyanobacteria, diatoms, and dinoflagellates, and is known to be a causative agent of human neurodegenerative diseases. Different phytoplankton organisms' ability to synthesize BMAA could indicate the importance of this molecule in the interactions between microalgae in nature. We were interested in the following: what kinds of mechanisms underline BMAA's action on cyanobacterial cells in different nitrogen supply conditions. Read More

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Proteome impact on maize silks under the priming state induced by Trichoderma root colonization.

Planta 2021 May 2;253(5):115. Epub 2021 May 2.

Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Universidad Nacional de Rosario, Suipacha 531, S2002LRK, Rosario, Santa Fe, Argentina.

Main Conclusion: Trichoderma activates plant proteins to counteract Fusarium infection. Comparison between proteomic and transcriptomic data suggests differential response regulation. Proteins from the phenylpropanoid pathway are activated to quickly respond to pathogen attack. Read More

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Trace elements in dried blood spots as potential discriminating features for metabolic disorders diagnosis in new-borns.

Metallomics 2021 Apr 30. Epub 2021 Apr 30.

Group of Trace Elements, Speciation and Spectroscopy (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology. Faculty of Chemistry. Universidade de Santiago de Compostela. Avenida das Ciencias, s/n. 15782, Santiago de Compostela. Spain.

Trace elements in dried blood spots (DBS) from new-born were determined by laser ablation (LA) coupled with inductively coupled mass spectrometry (ICP-MS), and data was subjected to chemometric evaluation in an attempt to classify healthy new-born and new-born suffering metabolic disorders. Unsupervised [principal component analysis (PCA), and cluster analysis (CA)], and supervised [linear discriminant analysis (LDA), and soft independent modelling by class analogy (SIMCA)] pattern recognition techniques were used as classification techniques. PCA and CA have shown a clear tendency to form two groups (healthy and new-born suffering metabolic disorders). Read More

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Examination of the Sprinting and Jumping Force-Velocity Profiles in Young Soccer Players at Different Maturational Stages.

Int J Environ Res Public Health 2021 Apr 27;18(9). Epub 2021 Apr 27.

Centre for Sport Studies, Rey Juan Carlos University, 28943 Madrid, Spain.

The aim was to determine the relationships among components of the force-velocity (F-V) profiles in jumping and sprinting, with both biological and chronological ages in 89 young soccer players belonging to categories from U10 to U18. Participants performed countermovement jumps (CMJ) and 20-m sprint tests. F-V components assessed were associated with both maturity offset and chronological age, using correlation and multiple linear regression analyses. Read More

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"" Staff Experiences of Working in Children's Blood and Cancer Centers in New Zealand-A Constructivist Grounded Theory.

J Pediatr Oncol Nurs 2021 Apr 29:10434542211011042. Epub 2021 Apr 29.

School of Nursing, 1415University of Auckland, Auckland, New Zealand.

The purpose of this study is to explore staff experiences of working in a children's blood and cancer center in New Zealand, with a particular focus on how staff maintain resilience in their work and sustain working in this difficult area. Constructivist grounded theory (GT) methods were used to collect data using focus groups and individual interviews with all staff (nursing, medical, allied health, cleaning, and support staff) working in the area. Data were analyzed using constant comparative analysis, and data collection continued until theoretical saturation was achieved. Read More

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How Elderly Residents in Nursing Homes Handle Loneliness-From the Nurses' Perspective.

SAGE Open Nurs 2020 Jan-Dec;6:2377960820980361. Epub 2020 Dec 17.

Faculty of Health Sciences, University of Stavanger, Stavanger, Norway.

Introduction: Elderly people who leave their home environment and move to a nursing home enter a phase in life with diminishing contact with family and friends. This situation often results in a feeling of loneliness with a concomitant deterioration in physical and mental health. By exploring the topic through the lens of the nurses, this study takes a novel approach to address an under-researched area in the nursing field. Read More

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December 2020

Auto-classification of biomass through characterization of their pyrolysis behaviors using thermogravimetric analysis with support vector machine algorithm: case study for tobacco.

Biotechnol Biofuels 2021 Apr 27;14(1):106. Epub 2021 Apr 27.

Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China.

Background: During the biomass-to-bio-oil conversion process, many studies focus on studying the association between biomass and bio-products using near-infrared spectra (NIR) and chemical analysis methods. However, the characterization of biomass pyrolysis behaviors using thermogravimetric analysis (TGA) with support vector machine (SVM) algorithm has not been reported. In this study, tobacco was chosen as the object for biomass, because the cigarette smoke (including water, tar, and gases) released by tobacco pyrolysis reactions decides the sensory quality, which is similar to biomass as a renewable resource through the pyrolysis process. Read More

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Mortality Rates of Coronavirus Disease 2019 (COVID-19) Caused by the Novel Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2).

Cureus 2021 Mar 24;13(3):e14081. Epub 2021 Mar 24.

Chemistry, Government College of Engineering, Keonjhar, Keonjhar, IND.

Background The significance of the global prevalence and incidence of coronavirusdisease 2019 (COVID-19) is a measure of its severity. However, without statistical data, one cannot understand the novel severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) pandemic. This study, based on good data, enables us to know how the disease is spreading, what impact the pandemic has on the lives of people around the world, and whether the countermeasures that countries have been taking are successful for controlling and preventing the disease. Read More

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Upper Barremian-lower Aptian scleractinian corals of central Europe (Schrattenkalk Fm., Helvetic Zone, Austria, Germany, Switzerland).

Zootaxa 2021 Apr 15;4960(1):zootaxa.4960.1.1. Epub 2021 Apr 15.

Smithsonian Institution, Department of Invertebrate Zoology, Washington, DC, 20013, United States of America. Research Institute Senckenberg, Senckenberganlage 25, D-60325 Frankfurt/Main, Germany..

From the Schrattenkalk Formation (upper Barremian-lower Aptian) of southern Germany, western Austria, and Switzerland, new coral material is taxonomically described, belonging to 56 species from 35 genera of 21 families: Actinastrea pseudominima (Koby); A. subornata (d'Orbigny); Paretallonia bendukidzeae Sikharulidze; Eugyra (Felixigyra) crassa (de Fromentel) (new combination); E. (F. Read More

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[Prediction of epilepsy based on common spatial model algorithm and support vector machine double classification].

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2021 Feb;38(1):39-46

School of Information Science and Engineering, Shandong University, Qingdao, Shandong 266237, P.R.China.

At present the prediction method of epilepsy patients is very time-consuming and vulnerable to subjective factors, so this paper presented an automatic recognition method of epilepsy electroencephalogram (EEG) based on common spatial model (CSP) and support vector machine (SVM). In this method, the CSP algorithm for extracting spatial characteristics was applied to the detection of epileptic EEG signals. However, the algorithm did not consider the nonlinear dynamic characteristics of the signals and ignored the time-frequency information, so the complementary characteristics of standard deviation, entropy and wavelet packet energy were selected for the combination in the feature extraction stage. Read More

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February 2021

Underserved survivors of sexual assault: a systematic scoping review.

Eur J Psychotraumatol 2021 Apr 9;12(1):1895516. Epub 2021 Apr 9.

THRIVE, Department of Psychology, University of Southern Denmark, Odense, Denmark.

: Despite knowledge about the extensive and often long-lasting consequences of sexual assault, many survivors remain underserved by formal support systems (e.g. medical, mental health and criminal justice systems). Read More

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Breaking the paradigms of residual categories and neglectable importance of non-used resources: the "vital" traditional knowledge of non-edible mushrooms and their substantive cultural significance.

J Ethnobiol Ethnomed 2021 Apr 21;17(1):28. Epub 2021 Apr 21.

Centro Nacional de Investigación Disciplinaria en Conservación y Mejoramiento de Ecosistemas Forestales, Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias, Av. Progreso 5, Barrio de Santa Catarina, Coyoacán, CP 04010, CDMX, México.

Introduction: One of the main goals of ethnomycological studies has been understanding the role of wild edible mushrooms (WEM) in diverse cultures. To accomplish such a purpose, the local knowledge of WEM and their cultural importance have been evaluated and compared using qualitative and quantitative methods. However, few studies have documented these aspects in non-edible mushrooms, because they are considered to be in a category of residual cultural importance. Read More

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Auditory and visual short-term memory: influence of material type, contour, and musical expertise.

Psychol Res 2021 Apr 21. Epub 2021 Apr 21.

Lyon Neuroscience Research Center (CRNL), INSERM, U1028, CNRS, UMR 5292, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.

Short-term memory has mostly been investigated with verbal or visuospatial stimuli and less so with other categories of stimuli. Moreover, the influence of sensory modality has been explored almost solely in the verbal domain. The present study compared visual and auditory short-term memory for different types of materials, aiming to understand whether sensory modality and material type can influence short-term memory performance. Read More

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Predicting the animal hosts of coronaviruses from compositional biases of spike protein and whole genome sequences through machine learning.

PLoS Pathog 2021 04 20;17(4):e1009149. Epub 2021 Apr 20.

Department of Health Data Science, University of Liverpool, Brownlow Street, Liverpool, United Kingdom.

The COVID-19 pandemic has demonstrated the serious potential for novel zoonotic coronaviruses to emerge and cause major outbreaks. The immediate animal origin of the causative virus, SARS-CoV-2, remains unknown, a notoriously challenging task for emerging disease investigations. Coevolution with hosts leads to specific evolutionary signatures within viral genomes that can inform likely animal origins. Read More

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Assuring health commodity security in resource-poor settings.

Res Social Adm Pharm 2021 Apr 10. Epub 2021 Apr 10.

Department of Pharmacy Practice & Clinical Pharmacy, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana. Electronic address:

Health planners charged with the task of building or at least maintaining the health of populations within low- and middle-income countries (LMICs) have to find ways of providing steady, predictable supplies of health commodities for unpredictable demands for healthcare and health. To address this issue, this paper emphasizes a focus on aggregate commodity security defined as the continuous interrupted supply of health commodities belonging to all therapeutic categories and not just a selected subset. Given this focus, the paper identifies logistics systems comprising of a set of logistics activities as the machinery for assuring aggregate commodity security. Read More

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Sex-related differences in opioid administration in the emergency department: a population-based study.

Emerg Med J 2021 Apr 14. Epub 2021 Apr 14.

Emergency Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada

Background: Sex differences in pain experience and expression may influence ED pain management. Our objective was to evaluate the effect of sex on ED opioid administration.

Methods: We conducted a multicentre population-based observational cohort study using administrative data from Calgary's four EDs between 2017 and 2018. Read More

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Treatable inherited metabolic disorders causing intellectual disability: 2021 review and digital app.

Orphanet J Rare Dis 2021 Apr 12;16(1):170. Epub 2021 Apr 12.

Department of Pediatrics, Amsterdam UMC, Amsterdam, The Netherlands.

Background: The Treatable ID App was created in 2012 as digital tool to improve early recognition and intervention for treatable inherited metabolic disorders (IMDs) presenting with global developmental delay and intellectual disability (collectively 'treatable IDs'). Our aim is to update the 2012 review on treatable IDs and App to capture the advances made in the identification of new IMDs along with increased pathophysiological insights catalyzing therapeutic development and implementation.

Methods: Two independent reviewers queried PubMed, OMIM and Orphanet databases to reassess all previously included disorders and therapies and to identify all reports on Treatable IDs published between 2012 and 2021. Read More

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Factors Associated With Mental Suffering in the Brazilian Population: A Multilevel Analysis.

Front Psychol 2021 25;12:625191. Epub 2021 Mar 25.

Graduate Program in Public Health, Federal University of Rio Grande do Norte, Natal, Brazil.

To analyze how individual characteristics and the social context are associated with mental distress symptoms in the Brazilian population. A multilevel cross-sectional study with data from the 2013 National Health Survey. There were two dependent variables: (a) decreased vital energy and somatic symptoms, (b) the presence of depressive thoughts. Read More

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Comprehensive transcriptional analysis reveals salt stress-regulated key pathways, hub genes and time-specific responsive gene categories in common bermudagrass (Cynodon dactylon (L.) Pers.) roots.

BMC Plant Biol 2021 Apr 10;21(1):175. Epub 2021 Apr 10.

Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, People's Republic of China.

Background: Despite its good salt-tolerance level, key genes and pathways involved with temporal salt response of common bermudagrass (Cynodon dactylon (L.) Pers.) have not been explored. Read More

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Towards developing a comprehensive conceptual understanding of positive hospital culture and approaches to healthcare organisational culture change in Australia.

J Health Organ Manag 2021 Apr;ahead-of-print(ahead-of-print)

Centre for Health Systems and Safety Research, Australian Institute of Health Innovation, Sydney, Australia.

Purpose: The key aim of this narrative literature review, therefore, is to identify the key conceptual categories that inform the construction of positive person-centred culture within hospitals, and how these frameworks are brought to bear upon organisational culture within healthcare systems in Australia.

Design/methodology/approach: This narrative review presents a thematic synthesis of literature identified through a systematic search protocol undertaken across 19 academic databases and Google Scholar as an additional search tool. Thematic qualitative analysis was performed on the research results to determine the common themes within the diverse literature presented within this study. Read More

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Do categorical representations modulate early perceptual or later cognitive visual processing? An ERP study.

Brain Cogn 2021 Jun 2;150:105724. Epub 2021 Apr 2.

Department of Clinical Psychology and Neuropsychology, Institute for Psychology, Johannes Gutenberg University of Mainz, Mainz, Germany.

Encoding of perceptual categorical information has been observed in later cognitive processing like memory encoding and maintenance, starting around 300 ms after stimulus onset (P300). However, it remains open whether categorical information is also encoded in early perceptual processing steps (reflected in the mismatch negativity component; vMMN). The main goal of this study was to assess the influence of categorical information on both early perceptual (i. Read More

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Immunoproteomic analysis of fish ectoparasite, Argulus siamensis antigens.

Parasite Immunol 2021 Apr 2:e12837. Epub 2021 Apr 2.

ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar, India.

Aim: An immunoproteomic approach was followed to identify immunoreactive antigens of fish ectoparasite, Argulus siamensis with rohu (Labeo rohita) immune sera for screening of potential vaccine candidates.

Materials And Results: The whole adult Argulus antigen was run in 2D electrophoresis with IEF in 7 cm IPG strips of pH 4-7 and SDS-PAGE with 12% acrylamide concentration. Two parallel gels were run; one was stained with silver stain, and the other was Western blotted to nitrocellulose paper (NCP) and reacted with rohu anti-A siamensis sera. Read More

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Factors Related to the Performance of Elite Young Sailors in a Regatta: Spatial Orientation, Age and Experience.

Int J Environ Res Public Health 2021 03 12;18(6). Epub 2021 Mar 12.

Department of Social Psychology, Faculty of Psychology, University of Seville, 41013 Seville, Spain.

The objective of this study was to examine the role of spatial orientation in the performance of sport sailors. Participants were 30 elite male sailors from classes 420, Laser, Windsurfing RS:X and Windsurfing Techno, grouped into two categories: Monohull (18 sailors) and Windsurfing (12 sailors). Ages ranged between 13 and 18 years old (M = 15. Read More

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Variables associated with COVID-19 severity: an observational study of non-paediatric confirmed cases from the general population of the Basque Country, Spain.

BMJ Open 2021 04 1;11(4):e049066. Epub 2021 Apr 1.

Primary Care Group, Biodonostia Institute for Health Research, Donostia-San Sebastián, Spain.

Objectives: To investigate which were the most relevant sociodemographic and clinical variables associated with COVID-19 severity, and uncover how their inter-relations may have affected such severity.

Design: A retrospective observational study based on electronic health record data.

Participants: Individuals ≥14 years old with a positive PCR or serology test, between 28 February and 31 May 2020, belonging to the Basque Country (Spain) public health system. Read More

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Species diversity, composition, structure and management in agroforestry systems: the case of Kachabira district, Southern Ethiopia.

Heliyon 2021 Mar 15;7(3):e06477. Epub 2021 Mar 15.

Wondo Genet College of Forestry and Natural Resources, Hawassa University, Wondo Genet, Ethiopia.

Agroforestry is increasingly being identified as an integrated land use enhancing plant diversity while reducing habitat loss and fragmentation. This paper examined species diversity, composition, structure and management in agroforestry systems Two Kebeles (Kachabira and Mesafe) were purposively selected for this study. Then, farmers who dominantly practiced agroforestry practices such as home garden, parkland and live fence were stratified based on wealth categories. Read More

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Composition and origins of decorated glass from Umayyad Cordoba (Spain).

Herit Sci 2021 12;9(1):31. Epub 2021 Mar 12.

IRAMAT-CEB, UMR5060, CNRS/Université d'Orléans, 3D, Rue de la Férollerie, 45071 Orléans, France.

Recent archaeological excavations carried out in the western suburbs of Cordoba (Spain) brought to light numerous fragments of archaeological glass from the caliphal period (929-1031 CE). The typological and compositional analysis by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) of 66 fragments enabled the identification of different types of base glass and glass working techniques, identifying local productions, imports and decorative imitations of eastern models. The studied fragments include Mesopotamian, Levantine, Egyptian and possibly Sicilian soda-rich plant ash glass categories, and various glass-decorating techniques such as mould-blowing, pressing, cutting, staining or gilding. Read More

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