CORRECTION PROCEDURE FOR THE DETERMINATION OF SOIL SPECIFIC SURFACE

Specific surface has a very important role in geotacnic especially with that home dell with gypseous soils or other types of salty soils. Because its calculation need for high accuracy, a procedure is presented to calculate a correction factor for Specific surface determination. In a previous work, grain size distribution curves of many soil samples are collected. A value for the specific surface of each soil is determined summing the surface area of subintervals in the distribution curve. In this work, the values of specific surface are obtained from these gradation curves and compared to those calculated using the values of the equivalent diameter for each soil. Fitting has been made and gets the best equation representing these points. From this equation, new values for specific surface are obtained by interning the specific surface calculated from the equivalent diameter and again the point is draw with the origin point (specific surface obtained from these gradation curves). Fitting is made again and the new equation is obtained. Finally, the equation of the calculated corrected specific surface is written. The results showed a very good agreement when using the corrected procedure

Sporadic Lateral Ventricular Hemangioblastoma presenting with Intraventricular and Subarachnoid Haemorrhage

Intraventricular hemangioblastoma (HB) is very rare; few cases of intraventricular HB have been reported in the literature, either sporadically or in association with von Hippel-Lindau disease. Furthermore, the incidence of ventricular haemorrhage from HB seems to be uncommon. We report a unique case of sporadic HB of the right lateral ventricle presenting with intratumoural and intraventricular haemorrhage in addition to multifocal intracranial superficial siderosis, indicating the presence of a subarachnoid haemorrhage (SAH) as well. Such a combination has not been reported before. In the future, the detection of an intraventricular mass in association with ventricular haemorrhage, with or without SAH, should include HB as a differential diagnosis, particularly when the imaging appearances are not typical of the more common intraventricular tumours

Benefits of Project Management to Realizing Sustainable Buildings

Sustainable materials are becoming popular worldwide in terms of ecologically friendly structures that deal with pollution controls, climate change, global temperature increase, and resource conservation issues. Consequently, the researchers believe that simply using sustainable materials to design and create a building is insufficient. This article discusses several elements of sustainable construction planning including site choice mostly through the proposed project, material classification mostly through the life cycle, analysis time, cost, and commodity controls, reliability and stability, occupant health, manufacturing methodologies and procedures, and design concepts based on advanced ideas. The article argues that by integrating the choice of building components and construction strategic planning practices into the project, the productivity and consequently the reliability of the building could be significantly improved. The article also discusses the advantages and requirements of sustainable construction, the managerial roles in construction procedure, management processes, and a correlation of conventional construction planning and sustainable project management. The research paper indicates that the objective of constructing an environmentally friendly building is simply fully done when the notion of sustainability is integrated into every phase of the construction approach and that the procedures are not restricted to using recycled practices

Stylolite in Upper Cretaceous Carbonate Reservoirs from Northwestern Iraq

Stylolites are commonly observed in the carbonate reservoirs in various oilfield of Iraq including those of upper Cretaceous successions from northwestern Iraq, where they are characterized by stylolite-rich zones in the Cenomanian-early Turonian Gir Bir Formation and to a lesser extent in the Turonian-Santonian Wajna and early Campanian Mushorah formations respectively. The observed stylolites are either large to be identified in the core samples or smaller ones that are well observed in the thin sections and are characterized by variations in amplitude, morphology and accumulated insoluble residues. The recorded stylolites are classified as hummocky, irregular, low and high-amplitudes peaks, and irregular anastomosing stylolites. Stylolites affect the porosity permeability and thickness reduction compaction as the main chemical compaction (pressure solution) that reduce porosity. Whereas, in other places, the stylolites act as seals and stop the upward movement of hydrocarbons. This is also seen for mineralization processes such as silicification that ended near the stylolite surfaces

Giant Spontaneous Femoral Artery Pseudoaneurysm Treated with Covered Stents : Report of a rare presentation and review of literature

We report the case of a 62-year-old woman who presented with a one-month history of a pulsatile mass, with no antecedent trauma or intervention. Imaging showed a large pseudoaneurysm (PSA) of the distal portion of the left superficial femoral artery. The PSA was treated successfully with endovascular placement of covered stents

THEORETICAL SIMULATION OF STRESS-STRAIN RELATIONS FOR SOME IRAQI CLAYS USING THE ENDOCHRONIC MODEL

A constitutive law can be defined as a mathematical functional relation between physical quantities such as stress and strain and may take other factors like time ,temperature and additional material properties into account. In this paper , the endochronic model is used to predict the stress-strain relations of two Iraqi clays. This model is a viscoplastic one but without introducing a yield surface. It encompasses material behaviour such that the current stress state is a function of strain history through a time scale called “intrinsic time” which is not the absolute time but a material property. The simulation showed that the model overestimates the strains for all cases studied. This may be attributed to the material parameters which require a parametric study to determine their actual values for Iraqi clays.

Impact of severity, duration, and etiology of hyperthyroidism on bone turnover markers and bone mineral density in men

<p>Abstract</p> <p>Background</p> <p>Hyperthyroidism is accompanied by osteoporosis with higher incidence of fracture rates. The present work aimed to study bone status in hyperthyroidism and to elucidate the impact of severity, duration, and etiology of hyperthyroidism on biochemical markers of bone turnover and bone mineral density (BMD).</p> <p>Methods</p> <p>Fifty-two male patients with hyperthyroidism, 31 with Graves' disease (GD) and 21 with toxic multinodular goiter (TNG), with an age ranging from 23 to 65 years were included, together with 25 healthy euthyroid men with matched age as a control group. In addition to full clinical examination, patients and controls were subjected to measurement of BMD using dual-energy X-ray absorptiometery scanning of the lower half of the left radius. Also, some biochemical markers of bone turnover were done for all patients and controls.</p> <p>Results</p> <p>Biochemical markers of bone turnover: included serum bone specific alkaline phosphatase, osteocalcin, carboxy terminal telopeptide of type l collagen also, urinary deoxypyridinoline cross-links (DXP), urinary DXP/urinary creatinine ratio and urinary calcium/urinary creatinine ratio were significantly higher in patients with GD and TNG compared to controls (P < 0.01). However, there was non-significant difference in these parameters between GD and TNG patients (P > 0.05). BMD was significantly lower in GD and TNG compared to controls, but the Z-score of BMD at the lower half of the left radius in patients with GD (-1.7 ± 0.5 SD) was not significantly different from those with TNG (-1.6 ± 0.6 SD) (>0.05). There was significant positive correlation between free T3 and free T4 with biochemical markers of bone turnover, but negative correlation between TSH and those biochemical markers of bone turnover. The duration of the thyrotoxic state positively correlated with the assessed bone turnover markers, but it is negatively correlated with the Z-score of BMD in the studied hyperthyroid patients (r = -0.68, P < 0.0001).</p> <p>Conclusion</p> <p>Men with hyperthyroidism have significant bone loss with higher biochemical markers of bone turnover. The severity and the duration of the thyrotoxic state are directly related to the derangement of biochemical markers of bone turnover and bone loss.</p

Analysis Of Date Palm Germplasm Phylogenetic Relationship Using Simple Sequence Repeat (ssr) Markers

Background: Microsatellite (Simple Sequence Repeat) markers are very powerful tool especially in plant genome analysis because they are locus-specific, co-dominant, highly polymorphic and highly reproducible. However, in date palm only few microsatellite markers are available worldwide so far. Fortunately, more than 1000 new microsatellite markers were developed recently by a research group in ICARDA based on the date palm genome sequence generated by next generation DNA sequencing that is published by Weill Cornell Medical College in Qatar. Objectives: The aim of this work was to analyze the genetic diversity among most common cultivars of Qatari date palm and the genetic variation within each cultivar using simple sequence repeat markers. In addition, the study aimed to develop a detailed understanding of the genetic and molecular relationships of Qatari date Palm cultivars Methods: A new set of hundred genomic DNA microsatellite primer pairs was used to assess the genetic diversity of the 47 collected Date palm samples that are representing 17 genotypes from two genetic resource fields (Rodat Alfaras Germplasm field and Qatar University Experimental Farm). Bands were precisely measured by Gel documentation System software and scored for each genotype. Each reproducible polymorphic DNA band at particular position on the gel was treated as a separate character and scored as present (1) or absent (0) to generate a binary data matrix. Results: The results revealed that out of 100 SSR primers 27 primers showed exact expected size band and 62 primers showed clear polymorphism. In addition 11 over 100 did not show clear bands.in the whole set of 47 Date palm samples. Total of 538 bands were generated using the 100 SSR primers for the 15 Date palm date palm cultivars. On average, each primer generated 5 bands per genotype. The number of amplified bands varied from cultivar to cultivar and primer to primer. Band pattern data was converted into a binary data in excel work sheet and was analyzed using Power-maker program to calculate similarity coefficient values according to Jaccard (1908). A similarity matrix between Qatari date palm cultivars (Figure 5) showed an average genetic distance range from 0.000 to 0.4769. The cultivars studied here were highly divergent at the DNA level. The highest genetic distance value was observed between Lulu -3 and both Khadrawy-2and Khadrawy-3 cultivars (0.4769) which seem to be the most far three varieties.. Conclusions: In this study, SSR markers have been used to assess the molecular characterization and the phylogenic relationships of Qatari date palm cultivars. Our results provide evidence of a genetic diversity among the studied Qatari date genotypes and the ability of SSR markers to detect the genetic diversity in date palm. We may conclude that all date-palm genotypes are interrelated in spite of their agronomic divergence.qscienc