Dynamics of abelian subgroups of GL(n, C): a structure's Theorem

In this paper, we characterize the dynamic of every abelian subgroups $\mathcal{G}$ of GL($n$, $\mathbb{K}$), $\mathbb{K} = \mathbb{R}$ or $\mathbb{C}$. We show that there exists a $\mathcal{G}$-invariant, dense open set $U$ in $\mathbb{K}^{n}$ saturated by minimal orbits with $\mathbb{K}^{n}- U$ a union of at most $n$ $\mathcal{G}$-invariant vectorial subspaces of $\mathbb{K}^{n}$ of dimension $n-1$ or $n-2$ on $\mathbb{K}$. As a consequence, $\mathcal{G}$ has height at most $n$ and in particular it admits a minimal set in $\mathbb{K}^{n}-\{0\}$.Comment: 16 page

Linear semigroups with coarsely dense orbits

Let $S$ be a finitely generated abelian semigroup of invertible linear operators on a finite dimensional real or complex vector space $V$. We show that every coarsely dense orbit of $S$ is actually dense in $V$. More generally, if the orbit contains a coarsely dense subset of some open cone $C$ in $V$ then the closure of the orbit contains the closure of $C$. In the complex case the orbit is then actually dense in $V$. For the real case we give precise information about the possible cases for the closure of the orbit.Comment: We added comments and remarks at various places. 14 page

Hubungan Pengetahuan dengan Peran Petugas Kesehatan dalam Manajemen Bencana Alam di Rumah Sakit Umum Muyang Kute Kabupaten Bener Meriah Tahun 2017

Disaster is a series of events that disrupt people's lives and livelihoods caused by natural, nonnatural and human factors that result in human casualties, environmental damage, property loss and psychological impacts. National Board for Disaster Management. Recorded 513 disasters occurred from January to March 2017. The purpose of this study was to determine the relationship of knowledge with the role of health workers in natural disaster management in Muyang Kute General Hospital, Bukit District, Bener Meriah District, 2017. This type of research was analytic descriptive with cross sectional approach. The population in this study were all health workers in Muyang Kute General Hospital, as many as 541 people. The sampling technique was using simple random sampling with a total sample of 84 people. The instruments used were questionnaire sheets and analysis of Chi-square correlation test data. The results of the study the majority of good knowledge as many as 43 people (51.2%), and the role of health is good as many as 43 people (51.2). Chi-Square test results0.035 (<0.05) there is a relationship of knowledge with the role of health workers in natural disaster management at Muyang Kute General Hospital, Bukit District, Bener Meriah District in 2017. The conclusion of the research there is a relationship of knowledge with the role of health workers in disaster management In the 2017 Muyang Kute General Hospital, Bukit District, Bener Meriah Regency, it is expected that the Local Government will hold a disaster simulation activity in terms of increasing the role and knowledge of health workers

Les opérations de restructuration des firmes agroalimentaires multinationales entre 1987 et 2003

Based on a neo-institutionalist theoretical framework and using the Agrodata databank, the present paper analyses the main drivers underlying the restructuring operations of the top 100 multinational food processing enterprises worldwide and draws the map of the world's new agri-food landscape. World's agri-food oligopoly came out during these last decades concentrating an ever increasing financial and economic power (in 2002, the total value production of the top 100 food multinationals weighted for 27 % of the total production of the world food processing industry). Under constant pressure to improve their financial and economic performances, food processing enterprises face considerable constraints inherent in their international business environment : increasing international rivalry resulting from the adoption of liberalising economic policies by a large number of developing countries; importance that gain the financial spheres in world's agri-food chain; changing eating habits and consumer behaviour. Leadership seeking on large regional and/or world base in highly segmented markets pushes the top 100 food multinationals to reorganise their internal and external structures by adopting streamlining and cost cutting strategies while targeting larger geographical expansion thanks to mergers and acquisitions as well as partnerships that they realise. Consequently, they reshape world's agri-food lanscape and give way to the emergence of new finance-oriented governance patterns. ...French Abstract : En mobilisant une grille de lecture néo-institutionnaliste et en s'appuyant sur la base de données Agrodata, ce document analyse les logiques qui sous-tendent les restructurations des 100 premières firmes multinationales agroalimentaires mondiales et la nouvelle carte du monde agroalimentaire qui en résulte. On montre ainsi qu'un oligopole agroalimentaire de dimension internationale s'est progressivement constitué et que son poids économique et financier ne cesse de croître (les 100 premiers groupes mondiaux représentaient en 2002 près de 27% du chiffre d'affaires du secteur). L'intensification de la concurrence impulsée par l'ouverture des marchés, la financiarisation du secteur et les changements dans les comportements des consommateurs ont imposé aux entreprises de nouveaux impératifs de performance. La recherche du leadership macro-régional, voire mondial, sur des marchés de plus en plus segmentés conduit cet oligopole à mener des opérations de restructuration visant la rationalisation des coûts tout en soutenant une croissance externe (acquisitions, fusions, cessions, partenariats). Le profil du secteur au niveau mondial s'en trouve reconfiguré et l'on assiste à l'apparition de nouveaux types de gouvernance, plus financiarisés.MULTINATIONAL ENTERPRISES; STRATEGY; RESTRUCTURING; ECONOMIC PERFORMANCES; AGRI-FOOD MARKETS

Does Basel compliance matter for bank performance?

The global financial crisis underscored the importance of regulation and supervision to a well-functioning banking system that efficiently channels financial resources into investment. In this paper, we contribute to the ongoing policy debate by assessing whether compliance with international regulatory standards and protocols enhances bank operating efficiency. We focus specifically on the adoption of international capital standards and the Basel Core Principles for Effective Bank Supervision (BCP). The relationship between bank efficiency and regulatory compliance is investigated using the Simar and Wilson (2007. J. Econ. 136 (1), 31) double bootstrapping approach on an international sample of publicly listed banks. Our results indicate that overall BCP compliance, or indeed compliance with any of its individual chapters, has no association with bank efficiency

Effects of Amylose-To-Amylopectin Ratios on Binding Capacity of DDGS/Soy-Based Aquafeed Blends

Demands for seafood products are steadily increasing. Alternative protein sources are required to compensate for enormous amounts of fishmeal that is needed for global seafood production. Starch is a food polymer that can be added to fish feed formulations to enhance binding and expanding capabilities of extrudates. Floatability, a key factor for most aqua feeds, can be optimized by the addition of certain starch sources. Six ingredient blends with a similar protein content (~32.5%) containing two starch sources, Hylon VII (containing 70% amylose, 30% amylopectin) or Waxy I (containing 0% amylose, 100% amylopectin), 20% distillers dried grain with solubles (DDGS), and 15, 25, and 35% moisture content were used along with appropriate amounts of soybean meal, menhaden fishmeal, whey, vitamin and mineral mix to investigate nutritionally-balanced feeds for Nile tilapia (Oreochromis niloticus L.). The blends were processed using a laboratory single-screw extruder with varying temperature settings (90-90-90°C, 100-120-120°C, and 100-120-140°C), screw speeds (100, 120, and 140 rpm), and length/diameter ratio (3.4, 6.6, 9.2) of the die. Extensive analyses of expansion ratio (ER), unit density (UD), sinking velocity (SV), and pellet durability indices (PDI), water absorption (WAI) and water solubility indices (WSI) were conducted to evaluate the effects of the two starch sources on extrudate binding and floating capacity. By varying process conditions, significant differences (P\u3e0.05) among the blends were detected for all extrudate physical properties. Significantly higher values for ER, UD, and PDI were achieved by using the Waxy I starch source, while values for SV and WAI decreased. For WSI no significant differences were detected. Increasing the moisture content from 15-35% resulted in a significant increase in ER, WAI, and PDI and a significant decrease in UD. WSI showed no clear pattern in changes. The impact of different amylopectin to amylose ratio, temperature and moisture content on extrudate stability, cohesion and physical properties was demonstrated in this study. All formulations yielded viable extrudates while the blends with the amylopectin as the sole source of starch resulted in higher quality extrudates

Effects of nitrogen rates on grain yield and nitrogen agronomic efficiency of durum wheat genotypes under different environments

Durum wheat is an important staple food crop in Tunisia and other Mediterranean countries and is grown in various climatic conditions. Production and yield are however severely limited not only by drought events but also by reduced levels of nitrogen fertilisation. A study was carried out at two locations in the sub-humid area of Tunisia: Mateur in 2009–10 and 2010–11 and Beja in 2011–12 and 2012–13 under rainfed conditions. Four durum wheat genotypes (landraces: Bidi, Azizi; improved: Om Rabia, Khiar) were evaluated for nitrogen agronomic efficiency and related agronomic traits under various nitrogen rates: 0, 50, 100, 150, 200 and 250 kgNha−1, with three replications. There was a significant interaction effect (P ≤ 0.001) environments × genotypes ×N treatments for grain yield (GY), biomass yield (BY), harvest index (HI), partial factor productivity of applied nitrogen (PFPN) and nitrogen agronomic use efficiencies (NAE). GY was the most affected trait by nitrogen applied showing an increase of 94% under high N treatment (250 kgNha−1) compared to control plots without N treatments. A significant linear regression exists between GY (0 N) and GY for the different N rates (r =0.70; P < 0.001). This effect was more pronounced for improved genotypes than landraces for all parameters excepting BY and NAEBY. BY showed +11% increase in landraces than improved genotypes. PFPN showed an average decrease of 65% under high-N fertilisation with 10% prevalence for improved genotypes. Landraces tend to promote vegetative growth while grain filling efficiency was higher for improved genotype

Myélome multiple survenant au cours d’une Fièvre Méditerranéenne Familiale

L'objectif de ce travail est de rapporter une observation particulière de myélome multiple survenant au cours d'une maladie périodique. Il s'agit d'un patient tunisien de 53 ans suivi depuis le jeune âge pour maladie périodique dont le diagnostic était confirmé par l'étude génétique montrant l'homozygotie pour la mutation M694V du gène MEFV, fut admis pour exploration d'une douleur avec tuméfaction fessière droite récente. Les explorations biologiques et radiologiques ont permis de retenir le diagnostic d'un myélome multiple de type IgA à chaînes légères kappa stade III B, associé à une volumineuse localisation plasmocytaire très agressive de l'aile iliaque droite envahissant les structures musculaires avoisinantes. Notre observation, qui à notre connaissance est la deuxième signalant une telle association, se distingue par sa survenue brutale, sa progression rapide et le caractère très agressif de l'hémopathie.Key words: Fièvre méditerranéenne familiale, maladie périodique, myélome multiple, plasmocytome, cance