|
|
|
| Registros recuperados: 7.826 | |
|
| |
|
|
| Jacomo,A. L; Martinez,C. A. R; Saleh,S. O; Andrade,M; Akamatsu,F. E.. |
| Unlike the venous system, variations in arterial anatomy are less frequent and most of them affect visceral arteries. In limbs, variations of the brachial artery are the most reported and at least six different patterns have been described so far. The commonest is the superficial brachial artery which lies superficially to the median nerve. Much less prevalent are the high origin of the radial artery (brachioradial artery) or the existence of a doubled brachial artery (accessory brachial artery). We present a previously undescribed pattern of brachial artery variation. During dissection of the right upper limb of a 60 year-old male embalmed cadaver, we found the bifurcation of the brachial artery in the proximal portion of the middle third of the arm. Its... |
| Tipo: Journal article |
Palavras-chave: Artery; Brachial; Variation; Anatomy. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200027 |
| |
|
| |
|
| |
|
|
| Zheng,Yong; Yuan,Qianqian; He,Xin; Lei,Yueshan. |
| Any compression of testicular arteries may lead to loss of spermatogenesis and gonadal hormone production, existence of the variational arteries is accountable in cases of vasoligation, orchidopexy and other surgical approach on them. Anomalies of the testicular blood arteries were observed during dissection of the pelvic cavity in a 68-year-old male cadaver. This report describes a very rare case of lack of testicular arteries. For the blood supply to the testis, thick deferential arteries form some vascular winding and loops and course accompanied by deferent duct to the testis. This case report would serve as ray of light for knowledge of the possible variations of the testicular arteries during surgical procedures. |
| Tipo: Journal article |
Palavras-chave: Deferential artery; Variation; Umbilical artery. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300022 |
| |
|
| |
|
| |
|
|
| Liu,Chongbin; Xia,Chengqiang; Xie,Zhaohui; Jiao,Yang; She,Qiusheng. |
| The present paper deals with a histological study of the blood cells of Bufo Bufo gargarizans in different months: January, March, May, July and October. The methods used are by routine blood smear in Wright stain and observation in vivo. We found that in smears and in vivo two main types of cells of the red cells: mitotic as well as amitotic. While amitotic occurs all the year round, particularly in July, mitosis so far had been seen only in July. It is also found that there are plenty of neutrophils in the blood cells of Bufo Bufo gargarizans, furthermore, the nuclei of these cells are polymorphic, especially in January and March. Meanwhile, the concentration of red cells was lowest in May and highest in January; The concentration of white blood cells... |
| Tipo: Journal article |
Palavras-chave: Bufo Bufo gargarizans; Blood cells; Annual changes. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400022 |
| |
|
|
| Kenneth W,Bruland. |
| This presentation is a review of the chemistries of redox sensitive elements within suboxic regions of extreme oxygen minimum zones. Suboxic regions are defined as extreme oxygen minimum zones with dissolved oxygen < 10 µmol kg-1 (and likely <5 µmol kg-1), and with clear evidence of nitrate reduction, but not sulfate reduction. These are regions with nitrate deficits > 10 µmol kg-1 or N* values of _10 µmol kg-1. Suboxic regions predictably occur in the tropical and subtropical eastern Pacific and the Arabian Sea. These suboxic zones are important in the global biogeochemistry of nitrogen and act as an important sink for fixed nitrogen. Minor and trace element redox couples such as iodate/iodide and leachable particulate Mn/dissolved Mn undergo... |
| Tipo: Journal article |
Palavras-chave: Nitrate; Iodine; Manganese; Iron. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000300003 |
| |
|
| |
|
| |
|
|
| Niggol Seo,S; Mendelsohn,Robert. |
| This study estimates the impact of climate change on South American agriculture taking into account farm adaptations. The study used a Ricardian analysis of 2300 farms to explore the effects of global warming on land values. In order to predict climate change impacts for this century, were examined climate change scenarios predicted by three Atmospheric Oceanic General Circulation Models (AOGCM): the Canadian Climate Center (CCC), the Centre for Climate System Research (CCSR), and the Parallel Climate Model (PCM) models. Several econometric specifications were tested, and five separate regressions were run: for all farms, small household farms, large commercial farms, rainfed farms, and irrigated farms. Farmland values will decrease as temperature... |
| Tipo: Journal article |
Palavras-chave: Climate change; Agriculture; Ricardian approach; South America. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000100007 |
| |
|
| |
|
| |
|
|
| Mustafa Harlioglu,Muzaffer. |
| This study compares the morphology of rostrum, pereipods 1,2,4 and mouthparts of juvenile Astacus leptodactylus with those oí Pacifastacus leniusculus. Differences in morphology were observed, in particular with regard to the mouthparts e.g. including setal armature and number of teeth on the mandible. In general, the shape of the rostra in the two species is similar in that both taper to a point with a pair of sharp spines distally. Laterally the rostrum of A. leptodactylus is bordered by a regular row of setae, which is not so well defined in P leniusculus. The observations also showed that in addition to an increase in size, changes in morphology in the feeding apparatus between the developmental stages of the two species were present. It was concluded... |
| Tipo: Journal article |
Palavras-chave: Appendages; Astacus; Crayfish; Mouthparts; Pacifastacus; Scanning electrón microscope. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000400040 |
| |
|
|
| Andrés,Silvia; García,José M; Compés,Raúl. |
| S. Andrés, J.M. García, and R. Compés. 2013. A scenario for the conversion of Common Agricultural Policy payments in Spain after the 2011 legislative proposals. Cien. Inv. Agr. 40(2):291-306. This paper evaluates the impact of a new model of agricultural policy outlined in legislative proposals issued by the European Commission in October 2011 and estimates its effects on agricultural aid in Spanish Autonomous Communities compared with 2009. Therefore, the OECD agricultural policy-index system was used. To the extent that transversal criteria are applied, which support the transfer of aid between territories, the results suggest that changing the payment assignation model would involve a redistribution of aid towards areas that currently least benefit from... |
| Tipo: Journal article |
Palavras-chave: Agricultural policy; CAP post-2013; Direct payments; OECD; Redistribution. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200005 |
| |
|
|
| KRAUSKOPF,MANUEL. |
| During the last decade the articles published by Chilean Research Centers grew 1,73 which compares to the 2.34 fold increase of mainstream research articles registered as a whole in Latin America. However, the relative impact of the Chilean publications surpassed that of Latin America. In Biological Sciences, traditionally the strongest research area within Chile, Latin America also shows a steeper slope of growth. Qualitatively, biological disciplines in Chile are comparable to those published in Latin America although in Chile there are specialties as Physiology that surpass the average world's impact. The scientometric data is consistent with the fall in individual grants that the Chilean Research Fund (FONDECYT) has been allocating during the last... |
| Tipo: Journal article |
Palavras-chave: Research output; Biological sciences; Chile; Latin America; Scientometric analyses. |
| Ano: 2002 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602002000100012 |
| |
|
|
| Gusso,Aníbal; Ducati,Jorge Ricardo; Cotlier,Carlos G; Lopez,Diego A. G. |
| A search is made for indicators of the presence of phytoplankton, using satellite images of the Pacific (Central Chile) and Atlantic (South Brazil). AVHRR/NOAA-16 and -17 visible (1 and 2) and thermal (4 and 5) channels were used to perform a detection test, respectively, the Suspended Particulate Matter (SPM) and the Sea Surface Temperature (SST). In Brazilian waters, a positive correlation is found between SST and SPM's reflectance. This is interpreted as due to phytoplankton being more abundant in colder waters, where nutrients availability are higher because CO2 dissolution rates, thus being a favorable environment for phytoplankton contents, which when mixed with SPM, tends to reduce the total water reflectance, since organic matter causes absorption... |
| Tipo: Journal article |
Palavras-chave: Phytoplankton biomass; Remote sensing; AVHRR/NOAA. |
| Ano: 2004 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000200046 |
| |
|
| |
|
| |
| Registros recuperados: 7.826 | |
|
|
|
