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Search Results: 1 - 10 of 464224 matches for " A. Re "
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Securitisation: The case of post-9/11 United States Africa policy
RE Walker, A Seegers
Scientia Militaria: South African Journal of Military Studies , 2012,
Abstract: In the wake of 9/11, Africa was securitised in a new way by the United States (US): weak states were believed to pose an existential threat to the US. American aid to Africa consequently more than tripled in the years following 9/11. Using the Copenhagen School's securitisation theory, we investigate the interaction between the executive branch as claimant and the US Congress as legitimiser. The factors of political agency and context are accentuated in our use of securitisation theory. Yet, the evidence also points to structural forces, especially the unequal relationship between executive and legislature.
Los recuerdos del maltrato entre compa?eros en la vida escolar
Reátiga,María Eugenia;
Psicología desde el Caribe , 2009,
Abstract: this article reveals the results of a descriptive investigation, which aim to describe by mean of retrospective method experiences of bullying and other forms of abuse within 648, freshmen students of a private university. the conclusions show that around 41.8% of the students were witnesses of this situation, 12% confessed that they were bullied o bullied someone else, 4.8% remembers to be a victim and other 13% claims to be both a victim and an aggressor. it can be said that bullying increases as students reach high school, yet many of the victims decide to remain silent, due to the fear of exclusion and retaliation.
Effects of varying levels of distillers dried grains with solubles on growth performance of broiler chicks
Loar II, RE;Corzo, A;
Revista Brasileira de Ciência Avícola , 2011, DOI: 10.1590/S1516-635X2011000400010
Abstract: there is no formal recommendation, regarding dietary concentration, when it comes to feeding distillers dried grains with solubles (ddgs) to young broilers. this study evaluated the effects of varying levels of ddgs in a diet to young broilers from 0 to 14d of age. diets ranged from 0 to 32% ddgs concentration, with 8% increments. increasing inclusion rate of ddgs led to decreased body weight gain (bwg), whereas mortality seemed to be linearly increased. however, there was an increase seen in feed conversion (fcr) in conjunction with the increase in ddgs in the diet. an inclusion level of 8% ddgs or less is recommended for starter diets for broiler chicks.
The effect of fatty acid surfactants on the uptake of ozone to aqueous halogenide particles
A. Rouvière ,M. Ammann
Atmospheric Chemistry and Physics (ACP) & Discussions (ACPD) , 2010,
Abstract: The reactive uptake of ozone to deliquesced potassium iodide aerosol particles coated with linear saturated fatty acids (C9, C12, C15, C18 and C20) was studied. The experiments were performed in an aerosol flow tube at 293 K and atmospheric pressure. The uptake coefficient on pure deliquesced KI aerosol was γ = (1.10±0.20)×10 2 at 72–75% relative humidity. In presence of organic coatings, the uptake coefficient decreased significantly for long straight chain surfactants (≥C15), while it was only slightly reduced for the short ones (C9, C12). We linked the kinetic results to the monolayer properties of the surfactants, and specifically to the expected phase state of the monolayer formed (liquid expanded or liquid condensed state). The results showed a decrease of the uptake coefficient by 30% for C12, 85% for C15 and 50% for C18 in presence of a monolayer of a fatty acid at the equilibrium spreading pressure at the air/water interface. The variation among C12, C15 and C18 follows the density of the monolayer at equilibrium spreading pressure, which is highest for the C15 fatty acid. We also investigated the effect of organic films to mixed deliquesced aerosol composed of a variable mixture of KI and NaCl, which allowed determining the resistance exerted to O3 at the aqueous surface by the two longer chained surfactants pentadecanoic acid (C15) and stearic acid (C18). For these, the probability that a molecule hitting the surface is actually transferred to the aqueous phase underneath was βC15=6.8×10 4 and βC18 = 3.3×10 4, respectively. Finally, the effect of two-component coatings, consisting of a mixture of long and short chained surfactants, was studied qualitatively.
LOS RECUERDOS DEL MALTRATO ENTRE COMPA EROS EN LA VIDA ESCOLAR
María Eugenia Reátiga
Psicología desde el Caribe , 2009,
Abstract: En este artículo se muestran los resultados de una investigación descriptiva, que buscaba desde una mirada retrospectiva describir la experiencia que se haya vivido en relación a la situación de intimidación o rechazo por compa eros escolares en 648 estudiantes de primer semestre de estrato socioeconómico medio-alto, de una institución universitaria privada. En general, se halló a través del cuestionario RBQ, que el 41.8% recuerda que fue básicamente observador de esta situación; el 12% recuerda haber sido el victimario o agresor; el 4.8% de la muestra recuerda haber sido víctima y el 13% fue tanto víctima como agresor. Se pudo constatar que el maltrato como tal o agresión y específicamente la victimización en general aumentan en la secundaria, en el caso de la victimización se expresa en este período de modo menos activo, más larvado y mudo por medio del hablar mal y la exclusión.
NIMASTEP: a software to modelize, study and analyze the dynamics of various small objects orbiting specific bodies
N. Delsate,A. Compère
Physics , 2011, DOI: 10.1051/0004-6361/201118522
Abstract: NIMASTEP is a dedicated numerical software developed by us, which allows one to integrate the osculating motion (using cartesian coordinates) in a Newtonian approach of an object considered as a point-mass orbiting a homogeneous central body that rotates with a constant rate around its axis of smallest inertia. The code can be applied to objects such as particles, artificial or natural satellites or space debris. The central body can be either any terrestrial planet of the solar system, any dwarf-planet, or even an asteroid. In addition, very many perturbations can be taken into account, such as the combined third-body attraction of the Sun, the Moon, or the planets, the direct solar radiation pressure (with the central body shadow), the non-homogeneous gravitational field caused by the non-sphericity of the central body, and even some thrust forces. The simulations were performed using different integration algorithms. Two additional tools were integrated in the software package; the indicator of chaos MEGNO and the frequency analysis NAFF. NIMASTEP is designed in a flexible modular style and allows one to (de)select very many options without compromising the performance. It also allows one to easily add other possibilities of use. The code has been validated through several tests such as comparisons with numerical integrations made with other softwares or with semi-analytical and analytical studies. The various possibilities of NIMASTEP are described and explained and some tests of astrophysical interest are presented. At present, the code is proprietary but it will be released for use by the community in the near future. Information for contacting its authors and (in the near future) for obtaining the software are available on the web site http://www.fundp.ac.be/en/research/projects/page_view/10278201/
Y Chromosome Microsatellites Variation in Bali Cattle (Bos sondaicus) Population
A Winaya,Muladno,RE Gurnadi,A Saefuddin
Journal of Animal Production , 2009,
Abstract: Seven Y chromosome specific microsatellites were typed in a sample of 36 unrelated males from Bali cattle breed. Analysis variation of microsatellites marker in Bali cattle were determinate from PCR products by using 7 primer pairs that flanking microsatellites (INRA008, INRA057, INRA062, INRA124, INRA126, DYS 199, and INRA 189). PCR products were separated by 10% polyacrylamide gel electrophoresis (PAGE), and silver staining method was used to detect allele polymorphism at each locus. From two different geographical breed origin showed that Bali cattle from Bali island has higher heterozygous (h=0.33) level than Lombok island (h=0.30), but the number of allele was few (only two alleles) in all of locus. It is indicated that Bali cattle from two geographical origins were not significant in genetic variation. We know that Y chromosomal microsatellite in general has tend to specific allele in breed comparing to autosomal chromosome, because allele come from only male or Y sex chromosome and it contrary to autosomal chromosome where allele is contributed from male and female. FAO has specified that minimum four distinct alleles per locus for proficient judgment of genetic differences between breeds and this study we only used one breed, so it may not significantly to discriminate in Bali cattle population. For next study we need more Y chromosomal microsatellite marker to discriminate more Indonesian breeds related to tracing the genetic potential and because males animal has roles in genetic spreading which can have an enormous impact on highly selected domestic animal populations. (Animal Production 11(3): 149-154 (2009) Key Words : Bali cattle , Y chromosome, microsatellite, allele
Antimicrobial Susceptibility of Udder Pathogens Isolated from Dairy Herds in the West Littoral Region of Uruguay
RE Gianneechini, C Concha, A Franklin
Acta Veterinaria Scandinavica , 2002, DOI: 10.1186/1751-0147-43-31
Abstract: Bovine mastitis is the major problem for milk producers throughout the world and responsible for substantial losses of revenue annually. Antibiotic therapy is an important tool in the scheme of mastitis control. The treatments are more effective when directed by veterinarians; for example correct drug selection can be enhanced using an appropriate antimicrobial susceptibility test. The misuse or intensive use of antibiotics can lead to the development of resistance among different bacterial strains and contamination of foodstuff, with animal and human health implications [20]. The antimicrobial resistance is the result of mutations or exchange of genetic material such as plasmids and transposons [26]. Such resistance determinants most probably are acquired by pathogenic bacteria from a pool of resistance genes in other microbial genera present in different environments [8]. Increased resistance of Staphylococcus aureus and coagulase-negative staphylococci (CNS) isolated from bovine mastitis cases to antimicrobial agents has been reported by [14,1] and [22].Milk production in Uruguay (South America) is important with a total of 410.000 dairy cows, yielding 1462 millions litres in 1999 [27]. In spite of the importance of this sector, only 3 surveys to evaluate the resistance of udder pathogens to antibiotics have been performed in Uruguay using agar disk diffusion (ADDM, [5]): 1) [9] testing S. aureus and Streptococcus agalactiae isolated from subclinical cases obtained from 43 dairy farms in the southern dairy region of Uruguay showed that 53% of S. aureus and 100% of Str. agalactiae were sensitive to penicillin. 2) [17] found 78% of S. aureus strains susceptible to penicillin in the dairy area around Tacuarembó city (north of Uruguay). 3) [6] studied the resistance patterns of S. aureus and CNS isolated in the laboratory routine during 4 years from milk samples collected in the southwestern region of Uruguay for penicillin, cloxacillin, nafcillin, rifampin and tetra
La innovación en la administración: una relación de elementos olvidados
Mejía Reátiga,Camilo Antonio;
Innovar , 2007,
Abstract: this article attempts to reconcile some elements which are present in both innovation and administration. innovation was defined and then used in carrying out the study. the constitutive elements of innovation were identified. the relationships between such elements and administration were then established and theoretical construction was made regarding the conclusions drawn concerning relationships between innovation and administration, identifying fields of study where research in administration should be focused.
Knowledge and utilization of malaria control measures by pregnant and newly delivered mothers in Ibadan, Nigeria
A Oladokun, RE Oladokun, OA Adesina
African Health Sciences , 2011,
Abstract: Background: The World Health Organisation (WHO) guidelines for the control of malaria during pregnancy include prompt and effective case management of malaria combined with prevention of infection by insecticide-treated nets (ITNs) and intermittent preventive treatment in pregnancy (IPTp). Despite this the uptake is poor. Objective: To describe the malaria prevention measures utilized by these women in this environment. Methods: Information was obtained from consented pregnant and newly delivered women on their socio-demographic characteristics, knowledge and use of malaria chemoprophylaxis Results: One Thousand three hundred thirty (1330) pregnant and newly delivered women in 132 facilities within the Ibadan metropolis were surveyed. The mean age of the respondents was 29. 67 years (±5.21). The modes of prevention most commonly reported as being effective were the use of insecticide spray, window nets and ITN. Only 28.2% were using ITNs in the index pregnancy, and 67.2% of the women had had a drug administered for prophylactic purposes in the index pregnancy. Conclusion: This study demonstrates awareness but poor use of control measures. Additionally, there is poor use of the recommended agent for IPT. The factors militating against the use of these preventive measures need to be urgently explored and addressed.
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