The epidemiological relationships between isolated Staphylococcus aureus strains in milk samples of dairy cows, reagent to California Mastitis Test, individual and group milk was demonstrated in different sites of the production fluxogram, in 12 milk-producing farms in the Gameleira region, municipality of Sacramento MG Brazil, so that localization and transmission modes may be identified. Two hundred and forty-four strains out of 446 samples collected at several sites were isolated and bio-chemically characterized as coagulase-positive staphylococcus. Specific chromosome DNA fragment of the species Staphylococcus aureus was amplified to 106 strains and 103 underwent (PFGE). Samples' collection sites with the highest isolation frequency of Staphylococcus aureus strains comprised papillary ostia (31.1%), CMT-reagent cow milk (21.7%), mechanical milking machines' insufflators (21,7%), milk in milk pails (6.6%) and the milk in community bulk tanks (5.6%). Genetic heterogeneity existed among the isolated 103 Staphylococcus aureus strains, since 32 different pulse-types were identified. Pulse-type 1 had the highest similarity among the isolated strains within the different sites of the milk-production fluxogram. Highest occurrence of pulsetype 1 isolates of Staphylococcus aureus strains was reported in samples collected from the papillary ostia (10.6%), followed by milk samples from CMT-reagent dairy cows (5.8%) and mechanical milking machine insufflators (3.8%). The above shows the relevance of these sites in the agents' transmission mechanism within the context of the farms investigated.

The duplication of gonadal vessels is mainly found on the left side, with less numbers of bilateral cases. The objective of this work is describing a case of bilateral duplication of gonadal veins, where two veins were draining to inferior vena cava, being that the closest vein of kidney medial margin had a thickness of 2.68mm and was distant 64.41 mm of the organ. The second vessel had a thickness of 1.43mm and was distant 73.76mm. Two veins follow to left renal vein, being that the first vessel had a thickness of 2.7mm and was distant 21.8mm of the kidney medial margin; the other had a thickness of 1.64mm and was distant 35.13mm of the organ. The presence of variations on the local of drainage of gonadal vessels has clinical importance for comprehension of origin of varicocele cases, as well as the recurrence of them after surgical procedures.

La duplicación de las venas gonadales es más común en el lado izquierdo, con pocos casos bilaterales. El propósito de este reporte fue describir el caso de una duplicación bilateral de las venas gonadales, dos de las cuales desembocaban en la vena cava inferior. El vaso próximo del margen medial del riñon tenía un diámetro de 2,68mm y una longitud de 64,41 mm. La segunda vena tenía un diámetro de 1,43 mm y una longitud de 73,76 mm. Los dos vasos desembocaban en la vena renal izquierda. La primera vena tenía un diámetro de 2,7 mm y estaba a 21,8 mm del margen medial del riñon. La otra tenía un diámetro de 1,64 mm y se se localizaba a 35,13 mm del margen medial del riñon. La presencia de variaciones donde se produce el drenaje de los vasos gonadales tiene importancia clínica para la comprensión del origen del varicocele y la recurrencia del mismo, después de procedimientos quirúrgicos.

Os sistemas costeiros de ressurgência são caracterizados pela ascensão de águas frias que tornam os nutrientes disponíveis na camada eufótica para o crescimento e aumento da produção fitoplanctônica. No Brasil, a região do Cabo Frio (RJ) é o principal sistema de ressurgência costeira. O objetivo desse artigo foi revisar o atual conhecimento desse sistema através dos conceitos sobre interações biofísicas. A ascensão da Água Central do Atlântico Sul ocorre devido à alta frequência e amplitude dos ventos, à presença de meandros e vórtices na Corrente do Brasil, além da topografia local e da linha de costa. Os eventos de ressurgência são comuns durante os períodos de primavera/verão e a biomassa primária é exportada devido à circulação da água, sendo também controlada pela rápida predação zooplanctônica. Os pequenos peixes pelágicos regulam o crescimento do plâncton e são consumidos pelos peixes predadores, resultando em um importante estoque pesqueiro regional. A irregularidade da costa define as enseadas do Cabo Frio, na Reserva Extrativista Marinha do Arraial do Cabo, apresentando distintas influências das águas ressurgidas e resultando em grande diversidade de espécies. Consequentemente, ambientes com características tropicais e subtropicais são observados dentro de uma pequena escala espacial, o que constitui uma particularidade desse ecossistema.

The rising of cold water from deeper levels characterizes coastal upwelling systems. This flow makes nutrients available in the euphotic layer, which enhances phytoplankton production and growth. On the Brazilian coast, upwelling is most intense in the Cabo Frio region (RJ). The basic knowledge of this system was reviewed in accordance with concepts of biophysical interactions. The high frequency and amplitude of the prevailing winds are the main factor promoting the rise of South Atlantic Central Water, but meanders and eddies in the Brazil Current as well as local topography and coast line are also important. Upwelling events are common during spring/summer seasons. Primary biomass is exported by virtue of the water circulation and is also controlled by rapid zooplankton predation. Small pelagic fish regulate plankton growth and in their turn are preyed on by predatory fish. Sardine furnishes an important regional fish stock. Shoreline irregularities define the embayment formation of the Marine Extractive Reserve of Arraial do Cabo making it an area with evident different intensities of upwelled water that harbors high species diversity. Consequently, on a small spatial scale there are environments with tropical and subtropical features, a point to be explored as a particularity of this ecosystem.

O estudo tentou elucidar mecanismos eletrofisiológicos e corticais envolvidos em ações antecipatórias quando os sujeitos testados tiveram que apreender bolas em queda livre; especificamente através de mudanças na potência absoluta na banda alfa da eletrencefalografia quantitativa (EEGq). A amostra foi composta por 23 sujeitos sadios, ambos os sexos, idade entre variando entre 25 e 40 anos, sem comprometimento físico e mental, destros, e não fazer uso de nenhuma substância psicoativa ou psicotrópicos até o momento do estudo. O experimento consistiu de uma tarefa de apreensão de bolas em queda livre. A análise three-way ANOVA demonstrou uma interação entre os fatores momento e posição no córtex parietal posterior (CPP) esquerdo (p=0,001). Através da tarefa experimental empregada, esta área demonstrou uma atividade diferenciada envolvendo expectativa, planejamento e prontidão na tarefa de queda de bolas.

This study aimed to elucidate electrophysiological and cortical mechanisms involved in anticipatory actions when individuals had to catch balls in free drop; specifically through quantitative electroencephalography (qEEG) alpha absolute power changes. The sample was composed for 23 health subjects, both sexes, with ages varying between 25 and 40 years, absence of mental and physical illness, right handed and don't make use of any psychoactive or psychotropic substance at the time of the study. The experiment consisted of a task of catching balls in free drop. The three-way ANOVA analysis demonstrated an interaction between moment and position factors in left parietal posterior cortex (PPC) (p=0.001). Through the experimental task employed, this area demonstrated a differentiated activity involving expectation, planning and preparedness in the ball's drop task.

The vast majority of clinically used antitumor drugs are either synthetic or natural product based organic compounds. In this review we describe different aspects, such as structure-activity relationships, mechanism of action, clinical uses and possible future prospects, of the platinum antitumor complexes, a distinct class of antitumor agents.

Um caso de intoxicação aguda por metanol é relatado, no qual o paciente desenvolveu hemorragia putaminal bilateral após hemodiálise. Muito embora o paciente se encontrasse inicialmente comatoso e profundamente acidótico, a recuperação foi favorável, com comprometimento neurológico a longo prazo essencialmente restrito a paraparesia crural discreta, amnésia retrógrada e déficit visual acentuado. Uma revisão comparativa da literatura é avaliada.

A case of acute methanol intoxication is presented, in which bilateral putaminal hemorrhage developed after hemodialysis. Even though the patient was initially comatose and profoundly acidotic, favorable outcome was achieved, with long-term neurologic impairments essentially restricted to mild crural paraparesis, retrograde amnesia, and marked visual deficit. A comparative literature review is evaluated.