Search results for "Arid"

Molecular characterization of a male-specific glycosyl hydrolase, Lma-p72, secreted on to the abdominal surface of the Madeira cockroach Leucophaea m…

2003

0264-6021 (Print) Journal Article Research Support, Non-U.S. Gov't; The epicuticular surface protein Lma-p72 is specific to the abdominal secretions of Leucophaea maderae (Madeira cockroach) adult males. Natural Lma-p72 was purified and the complete cDNA sequence determined by reverse-transcription PCR using primers based on Edman degradation fragments. Northern blot and in situ hybridization analyses showed that Lma-p72 was expressed in the tergal and sternal glands. Sequence alignment indicates that Lma-p72 is closely related to the family 1 glycosyl hydrolases (EC 3.2.1). Native Lma-p72 was proved to be active in the abdominal secretions and exhibit a beta-galactosidase-like activity. Ho…

Distribution and kinetics of superantigen-induced cytokine gene expression in mouse spleen.

1993

The polyclonal stimulation of T cells by bacterial superantigens is involved in the pathogenesis of the toxic shock syndrome in certain staphylococcal and streptococcal infections. Here we describe the onset and kinetics of superantigen-induced cytokine production in situ in spleens of normal BALB/c mice monitored at the level of cytokine mRNA expression by in situ hybridization. Messenger RNAs for interleukin 2 (IL-2), interferon gamma, and tumor necrosis factors (TNF) alpha and beta were not expressed at detectable levels in spleens of unstimulated animals but became visible already 30 min after intraperitoneal application of 50 micrograms staphylococcal enterotoxin B. All mRNA levels sho…

Interleukin-12 and -23 Control Plasticity of CD127(+) Group 1 and Group 3 Innate Lymphoid Cells in the Intestinal Lamina Propria.

2015

Human group 1 ILCs consist of at least three phenotypically distinct subsets, including NK cells, CD127(+) ILC1, and intraepithelial CD103(+) ILC1. In inflamed intestinal tissues from Crohn's disease patients, numbers of CD127(+) ILC1 increased at the cost of ILC3. Here we found that differentiation of ILC3 to CD127(+) ILC1 is reversible in vitro and in vivo. CD127(+) ILC1 differentiated to ILC3 in the presence of interleukin-2 (IL-2), IL-23, and IL-1β dependent on the transcription factor RORγt, and this process was enhanced in the presence of retinoic acid. Furthermore, we observed in resection specimen from Crohn's disease patients a higher proportion of CD14(+) dendritic cells (DC), whi…

Carta de José Vidal-Beneyto a Foro Attac (Sevilla, 2009)

2009

2015

Aims To investigate the feasibility and to compare three devices measuring intraocular pressure (IOP) in mucopolysaccharidosis patients (MPS): iCare rebound tonometer (RT), Perkins applanation tonometer (PAT) and ocular response analyzer (ORA)

Integración sin derechos: de la irregularidad a la participación

2006

-Angeles.Solanes@uv.es Uno de los pilares de la actuales políticas de inmigración en los Estados de la Unión Europea lo constituye la integración. Este trabajo trata de poner de relieve hasta qué punto es determinante la dimensión jurídica en el proceso de integración. Para ello, parte de la idea de que no es posible la integración sin derechos, es decir, sin el reconocimiento de un estatuto jurídico pleno para los extranjeros que obliga, por una parte, a superar las situaciones de exclusión estratificada de colectivos como los inmigrantes irregulares, y por otra, a incluir en el catálogo jurídico de los extranjeros derechos de participación política. Se trata de transformar la categoría de…

Water-saving techniques for restoring desertified lands: some lessons from the field

2022

Nature-based solutions can significantly contribute to restoration projects in areas affected by desertification processes, where they are necessary for reversing land degradation. Currently, one innovative solution is The Cocoon™, which has been designed as a new ecotechnology for improving seedling establishment. The Cocoon consists of a doughnut-shaped container made of recycled cardboard that provides water and shelter at least during the first year of a seedling, which is the most critical for plant establishment. To determine the effectiveness of this ecotechnology under different conditions, the Cocoon was tested on a variety of soils, climates, vegetation, and land uses. Six plantin…

Soil seed bank and among-years genetic diversity in arid populations of Eruca sativa Miller (Brassicaceae)

2013

Abstract Populations of Eruca sativa from arid environments exhibit greater physiological dormancy than those that originated in more favorable ones. We tested the possible relative contribution of the soil seed bank (SSB) to the aboveground cohorts in desert and semiarid populations. Seedlings that emerged from the SSB under controlled irrigation were distinguished from those that emerged after exposure of the remaining ungerminated SSB to gibberellic acid as constituting non-dormant and dormant SSBs, respectively. On average, the total SSB was significantly larger in the semiarid than in the desert population. In both sites, the aboveground and SSB cohorts exhibited closely similar geneti…

Irrigated agriculture: Water resources management for a sustainable environment

2014

In the last decade, research on irrigation has mainly been aimed at reducing crop water consumption. In arid and semi-arid environments, in relation to the limited water resources, the use of low quality water in agriculture has also been investigated in order to detect their effects on soil physical properties and on crop production. More recently, even the reduction of energy consumption in agriculture, as well as the effects of external factors, climate change and agricultural policies, have been major research interests. All these objectives have been considered in the papers included in this special issue. However, in the last years, approaches aimed at reducing crop water requirements…

Climate and Pedoclimate of Italy

2013

In Chap. 2 , the role played by the factors of soil formation in Italy is examined by different authors. Edoardo Costantini, Maria Fantappie´ , and Giovanni L’Abate explore the potential strong influence of climate on soil nature and distribution. In spite of being placed in the middle of the temperate zone of the boreal hemisphere, the elongated shape of the Italian peninsula, stretching along 11 parallels in the middle of the Mediterranean sea, and the presence of two morphological barriers, the Alps and the Apennines, cause great local climatic variations, to an extent that they are much more important than means. In fact, long-term mean annual air temperature for the whole country is 12…