Effect of Temperature on the Ability of Pseudomonas stutzeri Bacteria Isolated from Different Sources to Fix Nitrogen

Background Research has tended to increase the number of nitrogen-fixing microbes in the ground to increase the rate of Stabilization and supply plants with their needs of Nitrogen while reducing nitrogen fertilization and the surrounding problems of pollution, loss, and cost, so a type of microorganism was used in this degree to fix Nitrogen and its use as an alternative to chemical fertilizers. Methodology, the isolated Pseudomonas stutzeri bacteria from different sources, were planted on a nitrogen-free medium after sterilization in an autoclave device, and the medium was distributed in 10 ml tubes. Then the bacteria were cultured in this medium and incubated for five days at a temperature of 37 °C, after which the growth was measured by a spectrometer and using the Nessler reagent detector. The same nitrogen-free medium was used, but the bacteria were incubated at different degrees. They were divided into three groups, the first incubated at 25 °C, the second at 35 °C, and the last at 45 °C. The effect of isolating Pseudomonas stutzeri bacteria from different sources on nitrogen fixation was isolated from urine, feces, and sputum. The nitrogen concentration in the medium containing the bacteria isolated from urine was 3.8%. In contrast, the Nitrogen installed in the medium containing the bacteria isolated from the feces reached the highest concentration of 6.2. The nitrogen fixation in the medium containing the bacteria isolated from the sputum reached the lowest concentration of 2.4%, As in Figure 1 This case can be explained by the fact that the presence of bacteria in the intestine led to the gene expression of the genes that encode the enzyme Nitrogenase. Effect of temperature difference on nitrogen fixation in the culture media. The treatments were divided into three treatments, with five replications for each treatment after sterilization of the culture media. They were distributed into 10 ml tubes and inoculum with bacteria for each tube. The first group was incubated at 25 °C, the second at 35 °C, and the last at 45 °C. For five days in a vibrating incubator, the results showed that the concentration of Nitrogen installed in the first treatment (25 °C) was 2%, while the highest concentration in the second treatment (35 °C) was 5.2%, and in the last treatment (45 °C) 3.4%, as shown in Figure 2. Interpretation of this is that the ideal degree for bacterial growth is 37 °C

Impact of maternal risk factors on the outcome of pregnancy in Baghdad city

To find out the impact of maternal risk factors on the outcome of pregnancy in Baghdad city. A descriptive purposive study was carried out on 100 postpartum women who had delivered for 1 hr. to 24 hrs. ago . the study sample was selected from three hospitals in Baghdad city ( Baghdad teaching hospital ,Fatima Al-Zahra'a maternity and pediatric teaching hospital and Al-Yarmook teaching hospital),during the period from 25 Jan. to 25 Feb. 2006. The data were collected through the use of questionnaire format reviewing pregnants' records and personal interview and were analyzed by using descriptive and inferential statistical approaches. The finding revealed that maternal pregnancy complications had weak effects on pregnancy outcome , while maternal employment & spouse's consanguinity were predictors for poor pregnancy outcome . The study recommended the necessity of establishing health education programs for pregnant to be self monitoring & early detection of complications that associate the pregnancy . In addition promote the system of follow up care during antenatal ,perinatal,& postnatal

Morphological Studies of the Immune Response to Vasectomy

1. The morphological changes in the epididymis, testes, and spleen, were studied at seven postoperative periods (6 wks and 4, 6, 9, 12, 15, and 18 mos.) after unilateral (left) vasectomy or sham operation, in a series of 72 mature Albino rats

Immunoreactivity of various peptides in typical and atypical bronchopulmonary carcinoid tumours.

The presence of a number of regulatory peptides (bombesin, gastrin, glucagon, somatostatin, calcitonin and ACTH) was compared in 30 typical carcinoid tumours and 27 well differentiated neuroendocrine carcinomas (atypical carcinoids) using conventional immunocytochemistry. Strong immunostaining for one or more peptide was observed in 97% of the typical carcinoids (29/30) whereas only 67% of the neuroendocrine carcinomas showed immunoreactivity. The peptide most frequently detected in typical carcinoids was bombesin (67%), while gastrin was more common in neuroendocrine carcinomas (44%). Immunoreactivity for more than one peptide was present in 33 tumours and in three cases, six different peptides were detected. The study shows that immunoreactivity to various peptides is more common in typical carcinoids than well differentiated neuroendocrine carcinomas. The significance of these findings is discussed

Steganography using dual tree complex wavelet transform with LSB indicator technique

Image steganography is undoubtedly significant in the field of secure multimedia communication. The undetectability and high payload capacity are two of the important characteristics of any form of steganography. In this paper, the level of image security is improved by combining the steganography and cryptography techniques in order to produce the secured image. The proposed method depends on using LSBs as an indicator for hiding encrypted bits in dual tree complex wavelet coefficient DT-CWT. The cover image is divided into non overlapping blocks of size (3*3). After that, a Key is produced by extracting the center pixel (pc) from each block to encrypt each character in the secret text. The cover image is converted using DT-CWT, then the produced key is used to determine the starting pixel in each block for hiding and the direction of hiding (clockwise or anticlockwise). The proposed method is applied on many images with different embedding rate, and many metrics are used to evaluate the performance of the proposed method such as Peak Signal to Noise Ratio (PSNR), Mean Square Error (MSE), correlation factor (CF) and Structural Similarity Index Measure (SSIM). It achieves in average 52.225 dB of PSNR, 0.3215 of MSE, 0.9952 of SSIM and 0.9997 of CF with embedding rate 1.5

Main Reasons for Using of PPP Contracts in Health Sector: An Analytical Study

The health sector in Iraq had faced enormous challenges. The health care system suffered a catastrophic deterioration under the former regime. The 1991 Gulf war incurred Iraq’s major infrastructures huge damages; includes health centers, clinics, hospitals, etc. The United Nations economic sanctions aggravated the deterioration process. The level of health care in Iraq has dropped markedly as the government budget allocated to the Ministry of Health (MOH) had decreased from $450 million in 1970 to about$ 250 million in 1985 then the annual total health budget for the ministry, a decade after the sanctions had fallen to $ 22 million which is barely 5% of what it was in the 1970s. On the other hand, the conflict of 2003 destroyed an estimated 12 percent of hospitals. Moreover, the war at 2014 held on ISIS-led to almost total destruction in most hospitals in the Central and Northern provinces. All this requires a quick strategy to advance the health sector and create a sustainable health sector. The researchers in this study will demonstrate, what are the pros and cons of Public-Private Partnership (PPP) contracts, how can be used in the Iraqi health sector, the main causes of dependence the MOH to using the PPP contracts in the all existing and the unfinished hospitals

Children as frequent attenders in primary care: a systematic review

Background: Frequent paediatric attendances make up a large proportion of the general practitioner (GP) workload. Currently no systematic reviews on frequent paediatric attendances in primary care exists. Aim: To identify the socio-demographic and clinical characteristics of children who attend primary care frequently. Design and setting: A systematic review.Methods: The electronic databases MEDLINE, EMBASE and PsycINFO were searched up to January 2020, using terms relating to frequent attendance in primary care settings. Studies were eligible if they considered children frequently attending in primary care (0-19 years). Relevant data were extracted and analysed by narrative synthesis.Results: Six studies, of overall fair quality, were included in the review. Frequent attendance was associated with presence of psycho-social and mental health problems, younger age, school absence, presence of chronic conditions, and high level of anxiety in their parents.Conclusions: Various sociodemographic and medical characteristics of children were associated with frequent attendance in primary care. Research on interventions needs to account for the social context and community characteristics. Integrating GP services with mental health and social care could potentially provide a response to medical and psycho-social needs of frequently attending children and their families

Utilization of Waste Iron Powder as Fine Aggregate in Cement Mortar

This paper reports about the use of recycled iron powder (IP) in producing cement mortar under normal conditions. Flow table test was performed on fresh mortar. Destructive tests were conducted on cubes of the hardened mortar to obtain the compressive and flexural strengths of the cement mortar. The effects of adding 10%, 20%, 30%, and 40% of waste IP as a natural sand replacement were assessed and compared. Waste iron are of two types: iron IP, which shows a similar particle size distribution to that of the sand used in making the samples, and fine iron powder (FIP), which contains fine particles. The compressive strength decreased with the increased amount of added IP in the mixtures, but it increased with the addition of 10% FIP and decreased gradually with the increased FIP level. By contrast, the flexural strength significantly increased with increased FIP in the mixtures. Recommendations regarding the applications of recycling to conserve resources and raw materials and prevent environmental pollution are provided

Prevalence of Hypertension in Deep and Lobar Intracerebral Hemorrhage in a Group of Iraqi Patients

Background: Non-traumatic Intracerebral Hemorrhage (ICH) results from rupture of blood vessels in the brain. ICH categories can also be considered as being either lobar in location or within the deep white matter. Although hypertension is a major risk factor for ICH in general[11], it is commonly considered to be associated more with patients having deep than with those having lobar haemorrhage. Objectives: We investigate the relationship between hypertension and deep versus lobar intracerebral hemorrhage (ICH). Methods: a retrospective review of records of 163 patients aged 18-89 years admitted to Al-Kadhimiya Teaching Hospital (January 2008 - October 2010) and diagnosed with ICH. Results: There was no significant relationship between hypertension in deep versus lobar intracerebral hemorrhage (p=0.814) Conclusions: Although the relation between hypertension and ICH was not found to be significant, our study suggests and recommends age-appropriate investigations for patients with ICH, as well as the need to promote patients’ education with regards to this disease and the importance of adherence to treatment of risk factors

Rohacell radomes for delicate antennas on the body at 2.4GHz

This paper presents the use of two generic on-body antenna types, a probe and a magnetic dipole with and without a radome constructed of Rohacell. Its is shown that Rohacell minimally attenuates the electromagnetic signal transmitted or received by the antenna concluding to the cover being essentially transparent to radio waves at 2.4GHz and 5.8GHz. In on-body meaurements radomes can be used to protect the antenna surfaces from damage and protect nearby personnel from being accidentally struck by quickly rotating antennas. Performance of two on-body antennas is considered on and off the body by measurement and simulation. Results show that the Rohacell protection has negligible effect on the performance of the antenna systems regardless of loading by humans and polarity. This paper aims to enlighten use of Rohacell to protect antennas used for body centric experiments and experiments in body-centric settings