Results 61 to 70 of about 9,443 (147)

Exponential prefixed polynomial equations [PDF]

open access: yes, 2013
A prefixed polynomial equation is an equation of the form $P(t_1,\ldots,t_n) = 0$, where $P$ is a polynomial whose variables $t_1,\ldots,t_n$ range over the natural numbers, preceded by quantifiers over some, or all, of its variables.
Nayebi, Aran
core  

Gleaning Rural Journalism: Rural Journalists' Agricultural and Environmental Reporting Utilizing Community Storytelling Networks ☆

open access: yesRural Sociology, Volume 89, Issue 4, Page 815-834, December 2024.
Abstract Environmental concerns are growing in parts of the rural United States as drinking water wells become contaminated with agrichemicals, and climate change impacts such as drought and extreme rain events disrupt farming practices. Analyzing in‐depth interviews with 29 U.S.
Jessica Walsh   +3 more
wiley   +1 more source

The Impact of Female Entrepreneurship on Economic Growth in Developing and Developed Economies

open access: yesECONOMICS
Significance. The development of women’s entrepreneurship is still a largely untapped potential for growth and prosperity. The economic role of women is crucial for growth and a more equitable distribution of wealth.
Gulvira Akybayeva   +4 more
doaj   +1 more source

Una proposta di riforma per il sistema pensionistico italiano (A Proposal of Reform for the Italian Pension System)

open access: yesMoneta e Credito, 2012
In Italy, the ageing of the population is leading to an increase of the pension expenditures. Before Dini reform in 1995, the earning-related contributory system was financed on a pay-as-you-go basis.
Francesco Marchionne
doaj   +1 more source

A Promising Approach to Target Colorectal Cancer Using Hybrid Triarylmethanes

open access: yesChemMedChem, Volume 19, Issue 21, November 4, 2024.
Exploration of novel anti‐colorectal cancer agents: This study focuses on hybrid triarylmethane compounds and their N‐oxide analogues. Pyridine N‐oxide hybrids showed significant antiproliferative activity on HT‐29 and HCT116 cell lines, with IC50 values between 18 and 24 μM.
Ameni Hadj Mohamed   +8 more
wiley   +1 more source

The prenatal caregiving expectations questionnaire‐revised version: Factor structure, internal consistency, and initial construct validity

open access: yesInfant Mental Health Journal: Infancy and Early Childhood, Volume 45, Issue 5, Page 541-556, September 2024.
Abstract An efficient, multidimensional instrument is needed to screen non‐optimal prenatal parental representations predictive of postnatal parenting behavior and child attachment. The present work aimed to revise and validate the Prenatal Caregiving Expectations Questionnaire—Revised (PCEQ‐R).
Katrine Røhder   +5 more
wiley   +1 more source

Tricarboxylic acid-cycle enzymes and ATP pool in facultative and obligate methylotrophs: Pseudomonas J26 and Methylomonas Pl1.

open access: yesActa biochimica Polonica, 1980
1. No essential differences were found in the activities of tricarboxylic acid-cycle enzymes in the newly isolated facultative methylotroph Pseudomonas J26 and obligate methylotroph Methylomonas Pl1. 2-Oxoglutarate dehydrogenase and succinate dehydrogenase were absent in Methylomonas Pl1; in Pseudomonas J26 the functioning of the cycle was imparied ...
J, Michalik   +2 more
openaire   +1 more source

The Great Space Weather Event during February 1872 Recorded in East Asia

open access: yes, 2018
The study of historical great geomagnetic storms is crucial for assessing the possible risks to the technological infrastructure of a modern society, caused by extreme space-weather events.
Ebihara, Yusuke   +11 more
core   +1 more source

The Magnetic Field from Cylindrical Arc Coils and Magnets: A Compendium with New Analytic Solutions for Radial Magnetization and Azimuthal Current

open access: yesAdvanced Physics Research, Volume 3, Issue 7, July 2024.
This study provides analytic solutions for the magnetic field of coils and magnets that have a non‐axisymmetric cylindrical geometry with a rectangular cross‐section. The equations can be readily applied to find the magnetostatic field in linear or non‐linear systems that contain a large set of elements.
Matthew Forbes   +3 more
wiley   +1 more source

The use of high expansion foam for stunning and killing pigs and poultry

open access: yesEFSA Journal, Volume 22, Issue 7, July 2024.
Abstract The EFSA Panel on Animal Health and Welfare (AHAW) was asked to deliver a scientific opinion on the use of high‐expansion foam for stunning and killing pigs and poultry. A dossier was provided by the applicant as the basis for an assessment of the extent to which the method is able to provide a level of animal welfare at least equivalent to ...
EFSA Panel on Animal Health and Welfare (AHAW)   +25 more
wiley   +1 more source

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