Al-Kitab Journal for Pure Sciences

Demanding extra Bandwidth and high data rates has been meet by the integration both of wired and wireless communication systems. For that the Radio over Fiber (RoF) technology has gained a traction. In this article a Coherent Optical Orthogonal Frequency Division Multiplexing (CO-OFDM) is proposed as the main wired system for transmitting data at high rates suffers from the polarization mode dispersion and chromatic dispersion of the optical channel which mitigates the data rates. Thus, to combat these limitations a Desperation Compensation Fiber (DCF) which adds negative attenuation to the optical signals transmitted in optical fiber is suggested. Moreover, the addition of Wavelength- Division- Multiplexing (WDM) to the system of transmission provides better bandwidth saving, high data rates, and better spectral efficiency, and power utilization. The efficiency of high data rate CO-OFDM integrated with RoF for long haul transmission between 100km and 450km with data rates up to 10 Gbps have been investigated in this article with SMF-DCF with 16 DPSK and 16-QAM modulations schemes respectively. The simulation results showed that the proposed system can achieve a high data rate up to 55 Gbps but when integrated with WDM, with a fiber link length can be increased to up to 6600 kilometers, with highest data rate up to 1.65 Tbps.

Introduction: Polycystic ovarian syndrome is a multiple organ disorder affects 5 to 10 % female population. The world occurrence of PCOS is 105 million in the age ranges from 15 to 45. The polycystic ovarian syndrome is a set of disorders like amenorrhea, infertility, polycystic ovaries, hyperinsulinemia, hirsutism, acne vulgaris and other symptoms of hyperandrogenism. Color Doppler and Pulse Doppler play a major role in evaluation of uterine artery Resistive index for access correlation with PCOS. PCOS patients suffer from primary and secondary infertility. This study aimed to show assess uterine blood flow and whether there is a correlation between these patterns and specific hormonal parameters.
A case control study done in Salah Al-Deen governorate during the period of 1st May–1st October 2022. Twenty-five patients with polycystic ovary disease compared with 25 normal healthy women. The ultrasound and Doppler analyses were performed for all women during the follicular phase of the menstrual cycle. Uterine artery blood flow velocities were analyzed and the pulsatility index, were calculated.
The current study showed that oligomenorrhea found among (72%) of the patients, clinical/biochemical signs of hyperandrogenism found among (76%). The mean LH (mIU/L) was significantly higher among PCO disease cases and also that the mean FSH (mIU/L) was significantly lower among PCO disease cases than control group. There was at increased ovarian volume of > 10 cm3 found among (80%), and ≥12 follicles measuring 2-9 mm found in (84%) of the PCO disease patients. The mean Uterine artery PI was significantly higher among PCO disease cases 2.3 ± 0.5 than control group 1.8 ± 0.4 (P value <0.05).
The mean ovarian volume was significantly higher among PCO disease cases than control group. The mean Uterine artery PI was significantly higher among PCO disease cases than control group.

The study was conducted by taking blood samples from those recovering from the Corona virus, specifically 20-28 days after infection. The number of samples was (54) patients, collected from the period among six months (Mars to September). Blood samples were taken from patients recovering from Covid 19 from the hospitals of Karbala and Baghdad, the information of the samples was recorded, and laboratory analyzes were done to measure the level of ferritin, and the complete blood picture was measured. The data of patients were studied Biochemistry lab with biochemical tests.
The results were obtained and indicated that most of the recovered patients with Corona virus had symptoms of acute anemia , and after conducting a ferritin analysis, it was found that their ferritin level was high, which caused an increase in stored iron and a lack of iron associated with hemoglobin. The research recommended continues taking vitamins and minerals necessary for the health of the body.

Hospitals are essential for preserving and enhancing both human and environmental health. The "green hospital" concept seeks to redefine how medical facilities are constructed to preserve human life while protecting the environment. The concept of a "green hospital" and its potential benefits are discussed in this paper. It also discusses the "green hospital" concept in the United Arab Emirates as an example for future hospitals. The paper also discusses various aspects of green hospitals, such as facility design, energy efficiency, green procurement, and patient-centered concepts. Finally, the provided discussion and examples demonstrated the benefits of using the green hospital concept as a model for future hospitals, as well as the drawbacks and barriers to adopting the green hospital concept.

Misalignment is one of the common causes of machine vibration. Understanding and practicing the fundamentals of rotating shaft parameters is the first step in reducing unnecessary vibration, reducing maintenance costs, and increasing machine uptime. In the industrial setting, misaligned machines account for 50% of all machine downtime. The most frequent issue with rotating machinery that affects every industry is rotor shaft misalignment. Consequently, misalignment defects can be qualitatively identified using condition monitoring based on vibration measurements. The present study employs vibration measurement method by Building a model that contains suggested defects and then using it in advanced simulation programs such as Ansys. and Validation of the results by comparing them with the results of experimental methods Validation results show that both numerical and experimental data are in good match regarding amplitude and frequency. The verification results proved that the frequencies that were extracted by using finite element techniques (simulation reading) agree with the frequencies that were extracted by the experimental (experimental reading) (100%).

Beginning in October 2020 and ending in April 2021, researchers from Al-Nahrain University's High Institute for Infertility Diagnosis and Assisted Reproductive Technologies compared the success rates of two different methods of diagnosing and treating infertility. The major purpose of the research was to assess the impact of a combined trigger (follicle-stimulating hormone [FSH] and human chorionic gonadotropin [hCG]) on endometrial receptivity (endometrial thickness, endometrial pattern, sub-endometrial blood flow). A total of 100 females took part in the study. All patients gave their informed written consent, and the study was approved by the Al-Nahrain University Ethics Committee. Procedure Time To confirm ovulation, measure and analyze the endometrial pattern, and examine the sub-endometrial blood flow, a vaginal ultrasound was done 36 to 48 hours following trigger ovulation. All four hormones (FSH, LH, Progesterone, and E2) were tested in the blood at the same time to determine whether a couple was fertile, a complete medical history, and physical examination whereas performed on each member of the pair. An ultrasound vaginal probe was used to do the transvaginal examination. Patients were placed in the dorsal lithotomy position with an empty bladder for early follicular US (CD 2-3) to assess the number of antral follicles, measure endometrial thickness, and rule out ovarian cysts or other pathology. A second ultrasound was performed during the middle of the cycle (CD9-14) to determine whether a mature follicle had been found. A multiplanar image of the uterus was acquired after an ultrasound scan was swept across the mid-sagittal plane. Endometrial thickness in the median longitudinal plane of the uterus was calculated as the largest distance from one basal endometrial interface via the endometrial canal to the opposite endometrial-myometrial interface of the anterior-posterior uterine wall. A statistically significant difference was found between Group A's average E2 concentration of 69.62 pg/mL and Groups B and C's concentrations of 53.32 and 36.65 pg/mL. (P 0.001). In group C, there was a statistically significant difference in E2 levels on the day of the trigger and the day of the IUI (P = 0.036). On the day of IUI compared to the day of trigger, no statistically significant differences were seen between the study groups for any of the other hormonal indicators (P > 0.05). There were no significant differences (P > 0.05) in any of the baseline clinical measures between the research groups. All clinical indicators were comparable across groups (P > 0.05). There were no statistically significant differences (P > 0.05) between the research groups on any other clinical indicators. When comparing groups, A, B, and C on the decline in RI between the trigger and IUI days, group A significantly outperformed the others (P = 0.003). There was no statistically significant difference (P > 0.05) in any of the other clinical parameters between the IUI and trigger groups on the day of IUI.