Quantum coherence and uncertainty in the anisotropic XY chain

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Standard oil company: um reflexo da industrialização americana

A Standard Oil Company foi resultado da forte industrialização que ocorreu nos Estados Unidos após a Guerra de Secessão. Anterior ao conflito, os americanos estavam divididos entre ser tornarem um país exportador de matérias primas ou serem industrializados. Mesmo que ambas as estruturas econômicas foram aplicadas concomitantemente, trazendo recursos financeiros para a Nação, os estados do Norte acabaram vencendo a guerra e incentivaram a expansão industrial. O reflexo desse processo foi notado pelo empresário J.D. Rockefeller que inicia sua empresa baseada na exploração de petróleo, a Standard Oil Company. Utilizando-se de métodos eficientes, inovadores e eficazes, proporcionou um aumento na produção petrolífera de forma exorbitante, podendo manter altos níveis de lucro, mesmo que a preços razoáveis ao consumidor. O impacto da organização industrial e as estratégias encontradas pelo monopólio marcaram profundamente a economia americana. Mesmo sendo um tema de história econômica, no decorrer deste trabalho utilizaremos aspectos sociológicos, biográficos e estatísticos para compreendermos de que forma a Standard Oil Company representa a essência do espírito capitalista da instituição americana

Factorization and criticality in the anisotropic XY chain via correlations

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Phase transition from a d(x(2)-y(2)) to d(x(2)-y(2))+id(xy) superconductor

The temperature dependencies of specific heat and spin susceptibility of a coupled dx2-y2 + idxy superconductor in the presence of a weak dxy component are investigated in the tight-binding model (1) on square lattice and (2) on a lattice with orthorhombic distortion. As the temperature is lowered past the critical temperature Tc, first a less ordered dx2-y2 superconductor is created, which changes to a more ordered dx2-y2 + idxy superconductor at Tcl(< Tc). This manifests in two second order phase transitions identified by two jumps in specific heat at Tc and Tc1. The temperature dependencies of the superconducting observables exhibit a change from power-law to exponential behavior as temperature is lowered below Tc1 and confirm the new phase transition. © 1998 Published by Elsevier Science B.V. All rights reserved.

Relationships between company size, types of production system and supply chain management: evidence from electro-electronics sector in Brazil

Purpose – The purpose of this paper is to investigate how company size and the type of production system affect the adoption of supply chain management (SCM) practices in companies in the electro‐electronics sector in Brazil. Design/methodology/approach – An e‐mail survey of 107 companies associated with the Brazilian Electrical and Electronics Industry Association (ABINEE) was conducted. Statistical techniques were employed to verify the adoption of SCM practices according to the size of the company and its production system. Findings – The major results indicate that the larger the size of the company, the higher the level of adoption of SCM practices, and that the choice of SCM practices depends upon the type of production system implemented. Practical implications – The implications of this study are useful to top management leaders of small and medium‐sized enterprises since the findings enable them to identify the most common practices adopted by either large‐, medium‐ or small‐sized companies in order to benchmark the level of adoption of SCM practices. Production managers can also benefit from this study by identifying the SCM practices that may support certain production systems.

Greening a Brazilian cotton seed processing company: from challenges to strategic opportunities

This paper aims to shed light on a current and important theme that has been gaining increasing importance for governments, society and companies: the greening of agricultural companies in developing countries. The research objective is to classify a Brazilian cotton seed processing company in the evolutionary stages of environmental management: reactive, preventive or proactive. Design/methodology/approach– A case study was conducted in a Brazilian cotton seed processing company.Findings– The main results are: the studied company is positioned in the preventive stage of environmental management; this company is investing in operational green practices; environmental management in this company is motivated by various factors aiming at an increased competitive advantage. Finally, it can be concluded that this company is looking for green opportunities towards the proactive environmental management stage.

Rock Hill Printing and Finishing Company History - Accession 207 - M91 (177)

This collection consists of a special edition of The Evening Herald (Rock Hill, SC newspaper) which included a section devoted to the history of the company.

Rock Hill Hardware Company Records - Accession 220

The Rock Hill Hardware Company was organized on June 4, 1893 by A.R. Smith and John Gelzer, A.A. Barron and his sons R.E. and W.L. bought Smith out in 1896 and by 1907 had acquired the whole firm. The Barron family owned and operated it until it closed in 1978. The collection consists of a 1906 ledger, financial records, a photograph, a seed license, World War II ration booklets, and newspaper clippings.

Evaluation of the Sensitivity of Freshwater Organisms Used in Toxicity Tests of Wastewater from Explosives Company

Explosives industries are a source of toxic discharge. The aim of this study was to compare organisms sensitivity (Daphnia similis, Danio rerio, Escherichia coli and Pseudomonas putida) in detecting acute toxicity in wastewater from two explosives, 2,4,6-TNT (TNT) and nitrocellulose. The samples were collected from an explosives company in the Paraiba Valley, So Paulo, Brazil. The effluents from TNT and nitrocellulose production were very toxic for tested organisms. Statistical tests indicated that D. similis and D. rerio were the most sensitive organisms for toxicity detection in effluents from 2,4,6-TNT and nitrocellulose production. The P. putida bacteria was the organism considered the least sensitive in indicating toxicity in effluents from nitrocellulose.

Absence of inactivating mutations and deletions in the DMRT1 and FGF9 genes in a large cohort of 46,XY patients with gonadal dysgenesis

Despite advances in our understanding of the mechanisms involved in sex determination and differentiation, the specific roles of many genes in these processes are not completely understood in humans. Both DMRT1 and FGF9 are among this group of genes. Dmrt1 controls germ cell differentiation, proliferation, migration and pluripotency and Sertoli cell proliferation and differentiation. Fgf9 has been considered a critical factor in early testicular development and germ cell survival in mice. We screened for the presence of DMRT1 and FGF9 mutations in 33 patients with 46,XY gonadal dysgenesis. No deletions in either DMRT1 or FGF9 were identified using the MLPA technique. Eight allelic variants of DMRT1 were identified, and in silico analysis suggested that the novel c.968-15insTTCTCTCT variant and the c.774G>C (rs146975077) variant could have potentially deleterious effects on the DMRT1 protein. Nine previously described FGF9 allelic variants and six different alleles of the 3' UTR microsatellite were identified. However, none of these DMRT1 or FGF9 variants was associated with increased 46,XY gonadal dysgenesis. In conclusion, our study suggests that neither DMRT1 nor FGF9 abnormalities are frequently involved in dysgenetic male gonad development in patients with non-syndromic 46,XY disorder of sex development. (C) 2012 Published by Elsevier Masson SAS.

Management practices and influences on IT architecture decisions: a case study in a telecom company

The study aims to analyze the IT architecture management practices associated with their degree of maturity and the influence of institutional and strategic factors on the decisions involved through a case study in a large telecom organization. The case study allowed us to identify practices that led the company to its current stage of maturity and identify practices that can lead the company to the next stage. The strategic influence was mentioned by most respondents and the institutional influence was present in decisions related to innovation and those dealing with a higher level of uncertainties.

Le pressioni delle web company sulle istituzioni europee

Grazie all’analisi del dibattito in corso nelle istituzioni europee inerente il tema della neutralità della rete si è avuto modo di capire come le web companies, debbano non solo interagire con il proprio mercato, ma anche con un ambiente in cui vi sono attori che definiscono regole ed influenzano i contesti sociali. Questo ambiente è composto da quei fattori sociali, politici e legali che interagiscono e influenzano dall’esterno i mercati e gli accordi privati. Esso comprende quindi tutte le interazioni economiche che hanno come intermediario un soggetto pubblico, in questo caso le istituzioni europee, e in cui, causa questa presenza, la natura degli accordi non risponde prettamente a logiche economiche ma più a quelle politiche.

Bucknell Dance Company Spring 2000

http://digitalcommons.bucknell.edu/dance_performances/1029/thumbnail.jpg