Sumer Journal for Pure Science

In this research, linear and nonlinear second-order boundary value problems are solved, by using exponential spline functions. The suggested method's validity and applicability are proved by a few numerical findings. The method's results show that it is both easy to use and efficient.

In this work, a mathematical model is developed to investigate the electronic properties of a system where a laser field is directed at a quantum dot and the dot is placed between two nonmagnetic (NM) leads. To test the electronic properties of the device and evolve a spin-dependent analytical equations for the occupancy numbers and quantum dot energy levels. The dealings within research are built on the time-independent Anderson-Newns model. All of these formulas have self-consistent solutions by the Fortran program, and the density of states is computed using them in the two regimes ( and ). All the parameters included in our studies can be tuned experimentally. It is found that the electronic properties (density of states) of the system are decreasing, and the energy windows increase as the parameter of laser effect (frequency =0.1,0.2,0.3 eV and broadening due to the laser field ) increase. The peaks of the density of states are shifted to positive energy for the system when the gate voltages increase. These findings have significant implications for nanotechnology, and the laser can be employed as a tool to facilitate the movement of electrons throughout the system.

Clove extracts was used to reinforce the polymethyl methacrylate (PMMA) resin used in denture bases. Samples with a granular size (53 micrometers) and volume fractions of (8%, 6%, 4%, 2%and 0%) were prepared using the manual molding method. Mechanical properties such as tensile strength,bending strength and Physical properties such as thermal conductivity.The findings demonstrated an improvement in the results of the tensile values. The highest value was recorded at the volume fraction (4%), which reached 49 MPa), and the bending values also showed an improvement. The highest value was recorded at the volume fraction (4%), reaching 61 MPa), while the thermal conductivity value showed a decrease by increasing .

Helicobacter pylori (HP) is the etiopathogenic agent of gastric and duodenal disorders ranging from gastritis to malignancy. It is also associated with many extra-intestinal diseases, including cardiovascular disease and its associated risk factors. To evaluate the link between HP infection and some cardiovascular risk factors by studying the effects of HP infection on body mass index, blood pressure, and serum lipid profile among patients having gastritis with and without HP infection. A cross-sectional study included 1214 patients who had gastritis diagnosed by gastroscopy examination. Those patients were in the age range of 30-65 years and they were divided according to their gender into 725 females and 489 males depending on the 13C urea breath test, they were divided into HP positive ( +) groups (550 female & 300 male ) and HP negative (-) group (175 female & 189 male). The blood pressure and body mass index (BMI) were measured for each patient and following at least 10‑h fasting, a lipid profile test was performed. Our study exhibited a significant difference (p > 0.05) in Body Mass Index (BMI) between HP (+) and HP (–) participants. HP (+) participants were obese (34.29 Kg/m2) while HP (-) participants were lean.ِ The mean systolic & diastolic blood pressures were non- significantly higher in HP (+) group than those in HP (-) group. The TC, TG, and LDL parameters scored the highest mean value in HP (+) group (212.47±18.35, 117.17±37.14, and 79.30±15.42) respectively. In contrast, HDL scored the lowest mean value in HP (-) group (40.59±2.38). HP infection significantly alters lipid profile test and may be one of the risk factors for obesity, dyslipidemia and hypertension.

Diabetes and hypothyroidism are the two most common endocrine opathies during pregnancy. this study aimed to study the effect of vitamin D3 and some biochemical parameters among study groups. The subject of this study divided to (30) GDM with hypothyroidism ,(30) GDM without hypothyroidism , and compared with (30) control, the age of the participants ranged (30-43). There was a highly significant increase at p<0.01 of FBS,PPFG, and HOMA-IR among study groups (GDM with hypothyroidism (G1), GDM without hypothyroidism (G2), control (G3), and a significant study f HbA1C and insulin level p<0.05 among study groups. There was a significant decrease at p<0.05 of FT3,FT4, and a significant increase at p<0.05 TSH among study groups. Significant increase vitamin D3 among study groups , there was a significant decresd of Ca between GDM with hypothyroidism vs control and a significant increase of ALP in GDM with and without hypothyroidism vs control . Conclusion: Vitamin D3 deficiency with high levels of sugar and insulin resistance in pregnant diabetic women with hypothyroidism and pregnant diabetic women without hypothyroidism leads to complications of early onset of diabetes mellitus in the pregnant mother The lowering secretion of the thyroid gland, and thus the mother and her child become risk indicator for many other diseases, the first of which is heart disease.

The south part of the Babylon Governorate, located on the Hilla River, suffers from collapse and erosion of its banks, as well as the increase in sedimentation in the river, which reduces the river flow efficiency; due to the effect of the velocity river flow, which works on eroding one side of the river and sedimentation on the other side, forming meanders in the river. After the reconnaissance visit determine the meandering sites. A detailed study of the area was carried out by drilling (6) test boreholes representing three areas (Al-Wazeer, Al-Ibraheemia, and Al- Hashemia), two wells on both sides of the meander and at a depth of (10 m), for each borehole to observe the effect of the river flow velocity on the stability of slopes and to know the variation in soil properties, its bearing capacity and the consolidation on both sides of the river, and thus its effect on the engineering construction. Soil samples have been taken to carry out physical tests including: (moisture content test, specific gravity test, Atterberg limits tests, sieve analysis, and hydrometer tests), also engineering tests were done which included (permeability test, unconfined & triaxial compressive strength test, direct shear test, consolidation test, and bearing capacity), soil chemical tests that done (pH, total soluble salt, sulfate test, chloride test, gypsum test, and organic matter test). A study was also conducted for the stability of the bank slopes for the three stations, where the cross-section was monitored by the M9 device, as well as the height of the banks from both sides by the (level) device, Using Geo-Studio 2021 program with soil properties and by using (Bishop method) the safety factor was extracted for the two stations for erosion-prone areas. The highest result of the safety factor was in Al-Ibraheemia Station (2.85), then the banks of Al-Wazeer Station, with a value of (2.3), and the lowest value of Al-Hashemia Station, which amounted to (1.84). Under natural conditions, the average river flow level reaches it in a year is (27.15 m) above sea level. Where all the stations were (safe) unless the water level increased or decreased. Also, the research reached a determination of the allowable bearing capacity that soil of the banks reaches it before the landslide.