High frequency magnetic permeability of nanocomposite film

The high frequency magnetic permeability of nanocomposite film consisting of the single-domain spherical ferromagnetic particles in the dielectric matrix is studied. The permeability is assumed to be determined by rotation of the ferromagnetic inclusion magnetic moments around equilibrium direction in AC magnetic field. The composite is modeled by a cubic array of ferromagnetic particles. The magnetic permeability tensor is calculated by solving the Landau-Lifshits-Gilbert equation accounting for the dipole interaction of magnetic particles. The permeability tensor components are found as functions of the frequency, temperature, ferromagnetic inclusions density and magnetic anisotropy. The obtained results show that nanocomposite films could have rather high value of magnetic permeability in the microwave range

Children in the picture : A report of the first phase of the primary extension programme

88 p.; 21 cm

Technology and alienation in industrialized nations

El autor describe el impacto que la innovación tecnológica ejerce, sobre la población en los Estados Unidos y sus manifestaciones que inducen a la alineación entre la gente que vive en la abundancia. También señala como la tecnología va definiendo y construyendo la condición humana y la adaptación consecuente al mismo

Length-weight relationships and condition factors of the three dominant species of marine fishes caught by traditional beach trawl in Ulelhee Bay, Banda Aceh City, Indonesia

Cilj studije bio je proučiti dužinsko maseni odnos te kondicijske faktore Lutjanus russellii, Aurigequula fasciata i Siganus canaliculatus ulovljenih u Ulehlee zaljevu, u gradu Banda Aceh, u Indoneziji. To su prevladavajuće riblje vrste, ulovljene tradicionalnim koćarenjem s kopna u Ulehlee zaljevu, u gradu Banda Aceh, u Indoneziji. Uzorkovanje je provođeno kroz period od tri mjeseca, od travnja do lipnja 2015. godine u intervalima od tjedan dana. Izmjerene su totalna dužina i masa na ukupno 900 uzoraka riba (300 individua iz svake navedene vrste). Dužinsko maseni odnos izračunat je pomoću linearnog alometrijskog modela (LAM), dok su relativna težina (Wr) i Fultonov koeficijent (K) izračunati kako bi se ocjenilo stanje uzoraka riba. Rezultati su pokazali da b vrijednost (3.04) kod Lutjanus russellii ukazuje na izometričan rast, dok je vrijednost b za Aurigequula fasciata i Siganus canaliculatus iznosila 1.41 i 1.75 te su vrste pokazale alometrijski rast. Prosječan Fultonov koeficijent (K) Lutjanus russellii iznosio je 3.01 kod mužjaka i 2.49 kod ženki. Kod oba spola Aurigequula fasciata K je iznosio 2.92. Uz to, prosječna vrijednost K Siganus canaliculatus iznosila je 2.61 kod ženki i 2.59 kod mužjaka. Općenito, faktori stanja relativne težine obično iznose 100. Zaključeno je da Lutjanus russellii ima izometričan obrazac rasta, dok Aurigequula fasciata i Siganus canaliculatus pokazuju negativan alometrijski uzorak rasta. Kondicijski faktori su u izvrsnom stanju te ukazuju na ravnotežu plijena i predatora.The objective of the present study was to examine the length-weight relationships and condition factors of snapper Lutjanus russellii, ponyfish Aurigequula fasciata and white-spotted spinefoot Siganus canaliculatus harvested from Ulelhee Bay, Banda Aceh City, Indonesia. These species are the predominant fishes caught by traditional beach trawl in Ulelhee Bay, Banda Aceh City, Indonesia. The sampling was conducted for three months from April to June 2015 at one-week interval. A total of 900 fish samples (300 individuals for each species) were measured for the total length and body weight. The length-weight relationships were calculated using Linear Allometric Model (LAM), while the relative weights (Wr) and Fulton’s condition (K) factors were calculated to assess the condition of the fish samples. The results showed that the b value of 3.04 in snapper indicates isometric growth pattern, while ponyfish and white-spotted spinefoot fish had the b values of 1.41 and 1.75, respectively, and these species display an allometric growth pattern. The average Fulton’s condition factor (K) of snapper was 3.01 for male and 2.49 for female; female ponyfish has the K value of 2.92 and 2.92 for male. In addition, the average K value of whitespotted spinefoot was 2.61 and 2.59 for female and male, respectively. The relative weight condition factor ranges from 58.73 to 166.09 for snapper, from 70.55 to 129.65 for ponyfish, and from 71.63 to 133.53 for white-spotted spinefoot. In general, the relative weight condition factors tendedto be 100. It is concluded that snapper has isometric growth pattern, while ponyfish and white-spotted spinefoot display the negative allometric growth pattern. The condition factors are in excellent condition and indicate a balance of prey and predator

Premature mortality due to social and material deprivation in Nova Scotia, Canada

INTRODUCTION: Inequalities in health attributable to inequalities in society have long been recognized. Typically, those most privileged experience better health, regardless of universal access to health care. Associations between social and material deprivation and mortality from all causes of death— a measure of population health, have been described for some regions of Canada. This study further examines the link between deprivation and health, focusing on major causes of mortality for both rural and urban populations. In addition, it quantifies the burden of premature mortality attributable to social and material deprivation in a Canadian setting where health care is accessible to all. METHODS: The study included 35,266 premature deaths (1995–2005), grouped into five causes and aggregated over census dissemination areas. Two indices of deprivation (social and material) were derived from six socioeconomic census variables. Premature mortality was modeled as a function of these deprivation indices using Poisson regression. RESULTS: Premature mortality increased significantly with increasing levels of social and material deprivation. The impact of material deprivation on premature mortality was similar in urban and rural populations, whereas the impact of social deprivation was generally greater in rural populations. There were a doubling in premature mortality for those experiencing a combination of the most extreme levels of material and social deprivation. CONCLUSIONS: Socioeconomic deprivation is an important determinant of health equity and affects every segment of the population. Deprivation accounted for 40% of premature deaths. The 4.3% of the study population living in extreme levels of socioeconomic deprivation experienced a twofold increased risk of dying prematurely. Nationally, this inequitable risk could translate into a significant public health burden