Results 41 to 50 of about 2,372 (181)

M51’s Spiral Structure [PDF]

open access: yesInternational Astronomical Union Colloquium, 1990
The M51 system (NGC 5194/5195) provides an excellent problem both in spiral structure and in galaxy interactions. We present an analytic study of a computer experiment on the excitation mechanisms for M51’s spiral arms and whether or not a halo is important for these mechanisms.
Howard, S., Byrd, G.G.
openaire   +1 more source

Implementing Sustainable Talent Management in a Mission‐Driven SME: The Roles of Organizational Signaling and Managerial Agency

open access: yesThunderbird International Business Review, EarlyView.
ABSTRACT In response to triple‐bottom‐line sustainability challenges facing the global business environment, organizations increasingly incorporate sustainability principles into their HRM practices, including talent management (TM). This becomes especially challenging for small and medium‐sized enterprises (SMEs).
Kousay Abid, Thomas Garavan
wiley   +1 more source

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel   +13 more
wiley   +1 more source

Oxidative Stress Biomarkers in the Shrimp Macrobrachium amazonicum (Heller, 1862): Assessment in an Environmental Preservation Area in the Brazilian Amazon

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Anthropogenic activities generate a significant amount of pollutants that are released into the environment, causing physiological and ecological disturbances. Among the xenobiotics present in aquatic ecosystems, numerous chemical and organic compounds have oxidative potential or are metabolized through oxidative processes, which may amplify ...
Natália Eduarda da Silva   +6 more
wiley   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves   +8 more
wiley   +1 more source

Correlation of Recruitment and Selection of Human Resources and the Performance of Small and Medium Enterprises

open access: yesNaše Gospodarstvo, 2019
Human resources are the most significant resource of a company; this is especially true for small and medium enterprises (SMEs) in which they create the company’s competitive advantage because of their uniqueness.
Klepić Iva
doaj   +1 more source

First Detailed Record of Jikradia olitoria (Hemiptera: Cicadellidae) in the Swiss Southern Alps and Evaluation of Its Current Potential as a Vector of 16SrV‐Phytoplasmas

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Jikradia olitoria Say is a Nearctic leafhopper that was recently reported in several European countries. Given its role as the vector of phytoplasmas associated with Grapevine Yellows diseases (GYD) in its native range, its presence in European vineyard agroecosystems could represent an important phytosanitary risk.
Alan Oggier   +3 more
wiley   +1 more source

A Multiple Encounter Model of M51 [PDF]

open access: yesAstrophysics and Space Science, 1999
The interaction of M51 with its companion NGC 5195 has been investigated with a spherical-polar grid code, where both components are described by self-gravitating star+gas disks embedded in analytical halo potentials. An extended survey was performed with various encounter geometries and companion masses, for relative orbits constrained by the ...
Heikki Salo, Eija Laurikainen
openaire   +1 more source

Transformational Leadership in Indonesian Diversified-Cultural SME Sector: An Investigation of the Settlement Criteria of Job Performance

open access: yesStudia Universitatis Vasile Goldis Arad, Seria Stiinte Economice
The main goals of the study were to examine how transformational leadership affected organizational citizenship behavior, worker productivity, and employee job satisfaction in Indonesian Small- and Medium-Sized Enterprise (SME) settings. The study used a
Islam Shainima   +6 more
doaj   +1 more source

Genetic Diversity of Flavescence Dorée Phytoplasmas in Vineyards of Serbia: From the Widespread Occurrence of Autochthonous Map-M51 to the Emergence of Endemic Map-FD2 (Vectotype II) and New Map-FD3 (Vectotype III) Epidemic Genotypes

open access: yesAgronomy, 2022
Flavescence dorée (FD) is a European quarantine disease of grapevine caused by FD phytoplasma (FDp) transmitted by the leafhopper of North American origin Scaphoideus titanus.
Oliver Krstić   +6 more
doaj   +1 more source

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