Anatomical Changes in Prosopis tamarugo Phil. Seedlings Growing at Different Levels of NaCl Salinity

1991 ◽  
Vol 68 (1) ◽  
pp. 47-53 ◽  
Author(s):  
G. SERRATO VALENTI ◽  
M. FERRO ◽  
D. FERRARO ◽  
F. RIVEROS
1992 ◽  
Vol 70 (5) ◽  
pp. 399-404 ◽  
Author(s):  
G. SERRATO VALENTI ◽  
L. MELONE ◽  
O. ORSI ◽  
F. RIVEROS

Author(s):  
Muhammad Usman Saleem ◽  
Muhammad Arshad Javid ◽  
Faisal Ayub Kiani ◽  
Muhammad Mudasser Nazir ◽  
Sheraz Ahmed Bhatti

The present study investigates the comparative effectiveness of different concentrations of garlic (Allium Sativum) and ginger (Zingiber Officinale) on carcass yield and selected histo-anatomical parameters of broilers. A total of 80 one day- old chicks were divided into five different groups with each group having 4 replicates in a trial of 35 days. The first group was kept as control whereas, the second, third, fourth and fifth groups diet were supplemented with garlic at 0.25 and 0.5% and ginger at 0.25 and 0.5% respectively in the diet. At the end of trial all birds were slaughtered for analysis. Results revealed that carcass weight and carcass yields were significantly (plessthan 0.05) improved by garlic supplementation at 0.5% compared to other groups. Histo-anatomy revealed that the strength of tibia bone increased significantly plessthan 0.05) whereas, the number of intraepithelial lymphocytes decreased significantly (plessthan 0.05) by the dietary supplementation of garlic and ginger irrespective of level. It is concluded that 0.5% garlic can be used as a potential replacement for antibiotic growth promoters in the broiler diet.


2001 ◽  
Vol 1 (11) ◽  
pp. 1060-1062
Author(s):  
Muhammad Anwer . ◽  
Irshad Hussain . ◽  
K. H. Sheikh .

Author(s):  
J. E. Doherty ◽  
A. F. Giamei ◽  
B. H. Kear ◽  
C. W. Steinke

Recently we have been investigating a class of nickel-base superalloys which possess substantial room temperature ductility. This improvement in ductility is directly related to improvements in grain boundary strength due to increased boundary cohesion through control of detrimental impurities and improved boundary shear strength by controlled grain boundary micros true tures.For these investigations an experimental nickel-base superalloy was doped with different levels of sulphur impurity. The micros tructure after a heat treatment of 1360°C for 2 hr, 1200°C for 16 hr consists of coherent precipitates of γ’ Ni3(Al,X) in a nickel solid solution matrix.


Author(s):  
M. Kraemer ◽  
J. Foucrier ◽  
J. Vassy ◽  
M.T. Chalumeau

Some authors using immunofluorescent techniques had already suggested that some hepatocytes are able to synthetize several plasma proteins. In vitro studies on normal cells or on cells issued of murine hepatomas raise the same conclusion. These works could be indications of an hepatocyte functionnal non-specialization, meanwhile the authors never give direct topographic proofs suitable with this hypothesis.The use of immunoenzymatic techniques after obtention of monospecific antisera had seemed to us useful to bring forward a better knowledge of this problem. We have studied three carrier proteins (transferrin = Tf, hemopexin = Hx, albumin = Alb) operating at different levels in iron metabolism by demonstrating and localizing the adult rat hepatocytes involved in their synthesis.Immunological, histological and ultrastructural methods have been described in a previous work.


2006 ◽  
Vol 11 (4) ◽  
pp. 304-311 ◽  
Author(s):  
Lars-Göran Nilsson

This paper presents four domains of markers that have been found to predict later cognitive impairment and neurodegenerative disease. These four domains are (1) data patterns of memory performance, (2) cardiovascular factors, (3) genetic markers, and (4) brain activity. The critical features of each domain are illustrated with data from the longitudinal Betula Study on memory, aging, and health ( Nilsson et al., 1997 ; Nilsson et al., 2004 ). Up to now, early signs regarding these domains have been examined one by one and it has been found that they are associated with later cognitive impairment and neurodegenerative disease. However, it was also found that each marker accounts for only a very small part of the total variance, implying that single markers should not be used as predictors for cognitive decline or neurodegenerative disease. It is discussed whether modeling and simulations should be used as tools to combine markers at different levels to increase the amount of explained variance.


Methodology ◽  
2006 ◽  
Vol 2 (4) ◽  
pp. 142-148 ◽  
Author(s):  
Pere J. Ferrando

In the IRT person-fluctuation model, the individual trait levels fluctuate within a single test administration whereas the items have fixed locations. This article studies the relations between the person and item parameters of this model and two central properties of item and test scores: temporal stability and external validity. For temporal stability, formulas are derived for predicting and interpreting item response changes in a test-retest situation on the basis of the individual fluctuations. As for validity, formulas are derived for obtaining disattenuated estimates and for predicting changes in validity in groups with different levels of fluctuation. These latter formulas are related to previous research in the person-fit domain. The results obtained and the relations discussed are illustrated with an empirical example.


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