Influence of spraying with gibberellic acid on behavior of Anna Apple trees

Abstract: This investigation wasconducted during two successiveseasons 2003/2004 and 2004/2005 on seven years old Anna apple trees budded on (MM. 106) rootstock and irrigated via drip system. Trees were sprayed with 250 ppm of gibberellic acid (GA 3 ) once at early May (6 weeks after full bloom) or twice at the previous date and at late July (l6 weeks after full bloom). The results indicated that gibberellic acid (GA 3 ) treatments significantlyincreased the vegetative growth parameters i.e., number of newgrowing shoot tips, shoot diameter, number of leaves developed on current shoots, total area of leaves developed on new current shoots per tree and leaf dry weight compared with the untreated trees. Although, the earlier application of GA 3 delayed bud break, gibberellic acid treatment at both times of application increased the percentage of lateral bud break of the next spring compared with the control trees. Gibberellic acid treatments had no effect on the flowering density atthe next spring of the applications. However, the percentages of both fruiting spursand fruiting lateral developed on one year old shoots of the next spring after the treatments were reduced. In general, the percentages of both initial and final fruit set at the next spring of GA 3 applications were significantly reduced for both spur bud inflorescences and mixed floral lateral buds developed on one year old shoots. Carbohydrates reserves of woody spurs were reduced for earlier application of GA 3

Attitudes of Saudi nursing Students on AIDs and Predictors of willingness to provide care for patients in Central Saudi Arabia

Objectives. This study aimed to assess HIV-related knowledge, attitudes and risk perception among Saudi nursing students, and to identify predictors of their willingness to provide care for patients with AIDS. Methods A cross sectional study of 260 baccalaureate nursing students at King Saud bin-Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia was done using  a previously validated instrument.  Results. Students’ knowledge percentage mean score (PMS) on HIV/AIDS was 72.93±10.67 reflecting an average level of knowledge. There were many misconceptions about how HIV is transmitted, e.g. use of same toilets and bathrooms and washing clothes together (24.9%), swimming (53.7%) and coughing and sneezing (49.6%). Nursing students reported an overall negative attitude towards AIDS, with a PMS of 43.48±9.21. The majority of students agreed that AIDs patients should be isolated from other patients (83%), and should not share the room with other non-infected patients (81.8%), and some reported that PLWA deserve what has happened to them (24.7%). After controlling for confounders, students’ poor knowledge and negative attitude were associated only with having never been given nursing education as their primary high education (p=0.012 & p=0.01 respectively).  Conclusion. These findings have implications for development of teaching strategies and curricular approaches for nursing to address this health care issue.Â

The Bouveret Syndrome: An Unusual Cause of Hematemesis

Gallstones are usually silent. Less commonly, patients with cholelithiasis develop symptoms and/or complications; biliary fistula occurs in 3% to 5% of the cases. When a large stone is passed and occludes the duodenum, gastric outlet obstruction (the Bouveret syndrome) may result. In reported cases, the stones are usually larger than 2.5 cm. The usual presenting symptoms are those of bowel obstruction: abdominal pain, nausea, and vomiting. Less commonly, the patients experience melena and, rarely, hematemesis. We describe a patient who had the largest stone reported to cause hematemesis rather than bowel obstruction and to be diagnosed endoscopically. The 5 X 4 X 3 cm stone was extracted surgically. Endoscopic diagnosis and extraction of stones up to 3 cm in size has been reported, avoiding the need for surgery

Evidence of nerve hypertrophy in patients with inclusion body myositis on lower limb MRI

INTRODUCTION/AIMS: Inclusion body myositis (IBM) is a myopathic condition but in some patients has been associated with an axonal length-dependent polyneuropathy. In this study, we quantified the cross-sectional area of the sciatic and tibial nerves in patients with IBM comparing with Charcot–Marie–Tooth disease type 1A (CMT1A) and healthy controls using magnetic resonance neurography (MRN). METHODS: MRN of the sciatic and tibial nerves was performed at 3T using MPRAGE and Dixon acquisitions. Nerve cross-sectional area (CSA) was measured at the mid-thigh and upper third calf regions by an observer blinded to the diagnosis. Correlations were performed between these measurements and clinical data. RESULTS: A total of 20 patients with IBM, 20 CMT1A and 29 healthy controls (age- and sex-matched) were studied. Sciatic nerve CSA was significantly enlarged in patients with IBM and CMT1A compared to controls (sciatic nerve mean CSA 62.3 ± 22.9 mm2 (IBM) vs. 35.5 ± 9.9 mm2 (controls), p < 0.001; and 96.9 ± 35.5 mm2 (CMT1A) vs. 35.5 ± 9.9 mm2 (controls); p < 0.001). Tibial nerve CSA was also enlarged in IBM and CMT1 patients compared to controls. DISCUSSION: MRN reveals significant hypertrophy of the sciatic and tibial nerves in patients with IBM and CMT1A compared to controls. Further studies are needed to correlate with neurophysiological measures and assess whether this finding is useful diagnostically

Role of Plastic Surgery in Management of Cleft Lip

Plastic surgery is a very tiny subspecialty of surgery, having roots that date back over three millennia to India. In the US, there are about 6900 plastic surgeons in active practice, and there are about 230 residency spots available annually. Plastic surgery is perhaps one of the most diversified medical specialties, despite its tiny size. The most common congenital anomalies to occur repeatedly impacting the orofacial area are cleft lip and palate. It can happen on its own, in different combinations, or in addition to other congenital abnormalities, including congenital cardiac conditions. For a patient with an orofacial cleft malformation to be functionally and aesthetically well, treatment must be started at the appropriate age. Care for a newborn with a cleft lip and palate must be coordinated and supplied by several different specialists for the infant to be managed successfully. This study\u27s objective was to look into if plastic surgery has a crucial role in treating cleft lip, hence enhancing the quality of life for those who are born with this disease. Correcting cleft lip defects both aesthetically and functionally is mostly dependent on plastic surgery

3-[(1-Hy­droxy-1-phenyl­propan-2-yl)amino]-5,5-dimethyl­cyclo­hex-2-enone

The asymmetric unit of the title compound, C17H23NO2, consists of two crystallographically independent mol­ecules (A and B). The cyclo­hexene rings in both mol­ecules adopt an envelope conformation. In the crystal, independent mol­ecules, A and B, are each linked by inter­molecular bifurcated (N,O)—H⋯O hydrogen bonds, generating R 2 1(7) ring motifs and forming infinite chains along the b axis

Longitudinal changes in peri-papillary retinal nerve fiber layer thickness in patients with unilateral branch retinal vein occlusion

Background: Associations between retinal venous occlusion (RVO), elevated intraocular pressure, and glaucoma have been reported. Further investigations into structural alterations in the fellow eyes of individuals with unilateral RVO have revealed that the peripapillary retinal nerve fiber layer is thinner than in healthy eyes, suggesting that there may be systemic risk factors common to both RVO and glaucoma. We aimed to evaluate changes in peripapillary retinal nerve fiber layer thickness (pRNFLT) among individuals with unilateral branch retinal vein occlusion (BRVO). Methods: This prospective observational study recruited 30 individuals (60 eyes) with newly diagnosed unilateral BRVO and macular edema, and a control group of 30 healthy individuals (30 eyes) with no abnormalities on fundus examination or concurrent systemic comorbidities. After baseline measurements, the participants were reassessed at 6, 12, and 24 months by measuring global and sectoral pRNFLT using spectral-domain optical coherence tomography. Results: The mean age and sex distributions were comparable between the patient and control groups (both P &gt; 0.05). When compared to fellow eyes, global and sectoral pRNFLT in eyes with BRVO were significantly higher at baseline (all P &lt; 0.05). Over time, pRNFLT decreased dramatically, and by the conclusion of the two-year follow-up, there was a significant reduction from baseline in the affected eyes (all P &lt; 0.05). Likewise, affected eyes experienced a significant improvement in best-corrected distance visual acuity and central macular thickness over the two-year follow-up (both P Less than or equal to 0.001). Comparing the global and all-sector pRNFLT of fellow eyes in the patient group with those of normal eyes in the control group, there were no significant differences at any visit, except in the temporal sector, which revealed a significant reduction in pRNFLT at 24 months in the fellow eyes of patients with unilateral BRVO (P = 0.02).&nbsp;&nbsp; Conclusions: Patients with unilateral BRVO experienced a significant reduction in pRNFLT in the affected eyes and, to a lesser extent, in the fellow eyes, compared with that of the control arm, suggesting that they are prone to retinal nerve fiber layer damage. The reduction in pRNFLT in the normal fellow eyes of patients with BRVO may be attributed to age or concurrent systemic comorbidities. Further studies with long follow-up periods are required to shed light on the etiology of functional and structural changes in both the retinal nerve fiber layer and ganglion cell complex in the normal and affected eyes of patients with unilateral BRVO

Future scenarios of green hydrogen in the MENA countries: the case of Egypt

Green hydrogen is a clean and renewable energy source that has the potential to play a major role in decarbonizing the global economy. Green hydrogen has become a promising decarbonization strategy for several industries, including transportation and manufacturing. The widespread use of green hydrogen technology still confronts several obstacles, such as high costs, a lack of infrastructure, and regulatory restrictions. The paper commences by examining the potential of green hydrogen production in MENA countries with a specific emphasis on Egypt as best practice example. It proceeds to identify the key drivers that will shape future scenarios of green hydrogen and outlines the best and worst-case scenarios for green hydrogen in MENA region by 2050. Through scenario analysis, the paper presents potential pathways for green hydrogen deployment in Egypt and the wider MENA countries, highlighting key drivers and potential barriers. According to the findings, Egypt emerges as pivotal player in driving the deployment of green hydrogen within the MENA region. The MENA region, rich in solar and wind resources and strategically located, emerges as a potent hub for green hydrogen production. Egypt, in particular, is at the forefront of this initiative, aiming to become a key exporter in the global hydrogen economy by leveraging its renewable resources, strategic projects, and conducive investment environment. The study employs a multifaceted methodology, integrating PEST analysis and identifying key drivers like renewable targets and technological advancements to assess green hydrogen’s potential in the MENA region, focusing on Egypt. It constructs best- and worst-case scenarios by 2050, utilizing these drivers to evaluate the implications of various influencing factors. In the best-case scenario, by 2050, Egypt aspires to be a pivotal player in the global green hydrogen economy, aiming for up to 8% market share. Through strategic investments, policy enhancements, and global partnerships, Egypt plans to become a major exporter, particularly to the European Union, aligning with global decarbonization goals. Comprehensive strategies are expected to drive economic prosperity, potentially increasing Egypt's GDP by $10-18 billion by 2025. Collaborations with global entities have fostered a robust infrastructure, enabling an integrated ecosystem for green hydrogen innovation and production