توفر عنصر الحديد في التربة والنباتات المعاملة بالأسمدة العضوية وغير العضوية في غور ا لأردن

This paper deals with the rcults of a study carried out on "Phoseolus vulgaris - Wed" as an indicator of chlorosis. The study took place between July 1990 and July 1992, and for two crop seasons each year. Six kinds of fertilizer were used. Soxtrinc (Iron), granular superphosphate, liquid phosphate fertilizers, and natural fertilizers: manure and quarters waste of sheep, cows and egg-laying hens. An area of about three-quarters of an acre in Jericho (Jordan Valley) was used for the study, using the same means, methods, materials and chemical fertilizers which are available to farmers in that area. The study confirms what is well known to the farmers that direct "Foliar Spraying" is the most efficient method in treating chlorosis, followed by the methods of using natural fertilizers. The study illustrates the rate of chlorosis as follows: Control > Granular Superphosphate > Liquid Phosphate Fertilizer > Cow's manure > Hen's manure > Soxtrine (Iron). In addition, the study confirms that chlorosis is not attributable to iron deficiency in the soil, but rather to its lack of availability. The main factors which play a role in determining the availability of iron arc: nature of soil, kind of plant, pH, rate of ion exchange, antagonism, syncrgism, and fixation as well as the leaching factor, all of which are related to weather elements like rain, humidity, ventilation and temperature.تتناول هذه الورقة نتائج الدراسة على وفرة الحديد الجاهز التي أجريت على نباتات الفاصولياء كونه مؤشراً جيداً لنقص الحديد ، وذلك بين شهري تموز1990 وتموز 1992 ولموسمين زراعين في كل عام ، باستخدام ستة أنواع من الأسمدة الكيماوية : سوكسترين (حديد) وسوبر فوسفات حبيبي ، وسماد فوسفات سائل وأسمدة طبيعية : زبل غنم ، زبل بقر ، زبل دجاج بياض وذلك على مساحة 3 دونم في منطقة أريحا (غور الأردن ) ، باستخدام نفس الوسائل والأساليب والمواد والاسمدة المتوفرة لمزارعي تلك المنطقة كماً ونوعا . ويتضح من نتائج الدراسة أنها جاءت لتؤكد ما هو معروف في عالم الزراعيين ، بأن استخدام الأسمدة الحديدية عن طريق الرش المباشر على ا لأوراق يعتبر أنجح الوسائل لمعالجة ظاهرة نقص الحديد ، يليها استخدام الأسمدة الطبيعية ، حيث جاءت نتائج الدراسة حول نسبة ظهور نقص الحديد على النحو التالي : سوكترين (حديد)< زبل الدجاج< زبل الغنم< زبل الأبقار< سماد فوسفات سائل < سوبر فوسفات حبيبى < شاهد . . . كما أن هذه الدراسة تؤكد على أن نقص الحديد لا يعود لنقصه في التربة ولكن لقلة جاهزيته ، وعلى أن أهم العوامل المؤثرة في ذلك هي : نوع التربة ، نوع النبات ، درجة الحموضة ودرجة التبادل الأيوني والتضاد الأيوني والتعاون والتداؤب ا لأيوني والتثبيت وعمليات الغسل والشطف التي تتأثر أساساً بعوامل الجو المختلفة من أمطار ورطوبة وتهوية ودرجة حرارة

Pemphigus vegetans presenting as serpiginous oral, esophageal and genital mucosal ulcers undiagnosed for 3 y

Pemphigus vegetans (PVeg) is a relatively milder and chronic variant of pemphigus vulgaris. It is very rare, constituting only about 3% of all cases of pemphigus. It is characterized by initial bullae or pustules which may then progress to papillomatous vegetations or plaques. Usually, oral mucosal and cutaneous lesions are seen in the same patient. Very rarely, only mucosal presentation may be seen. In this report, we present a case of a 30‑year‑old woman with previously undiagnosed multiple, painful, chronic vegetative ulcers with “snail‑track”‑like appearance present for 3 years. Extensive clinical and laboratory investigations revealed the lesions to be due to PVeg. The patient responded to prednisolone and cyclophosphamide therapy with complete remission after 2 months.Keywords: Mucosa, pemphigus vegetans, serpiginous, ulcers, vegetation

Biopsy quality is essential for preoperative prognostication in oral tongue cancer

Abstract A role for incisional biopsy in preoperative prognostication is increasingly being advocated in oral tongue squamous cell carcinomas (OTSCC). Biopsies at two locations were compared, and prognostic factors in biopsies and their corresponding resections were evaluated. A total of 138 OTSCC biopsy slides from Finland and Saudi Arabia were compared for size (horizontal and vertical) and invasive front. The Finnish cases were assessed for tumor stroma ratio (TSR) and tumor‐infiltrating lymphocytes (TILs) using light microscopy and digital image analysis assessment and compared. Furthermore, TSR, TILs, and previously analyzed budding and depth of invasion (BD) score in biopsies were compared with their evaluation in the corresponding resections. Fifty‐nine percent of Finnish and 42% of Saudi Arabian biopsies were ≥ 5 mm deep, while 98% of Saudi Arabian and 76% of Finnish biopsies were ≥ 5 mm wide. Assessment of invasion front was possible in 72% of Finnish in comparison with 40% of Saudi Arabian biopsies. There was 86.8% agreement between TSR and 75% agreement between TIL evaluation using light microscopy and digital assessment. Significant agreement was obtained on comparing the TSR (p = 0.04) and BD (p &lt; 0.001) values in biopsies and resections. Biopsies of ≥ 5 mm depth from representative OTSCC areas are essential for prognostic information. Clinical pathologists are advised to assess BD score and TSR for prognostic features in such biopsies

Distribution and Frequency of Salivary Gland Tumours: An International Multicenter Study

Background Salivary gland tumours (SGT) are a relatively rare group of neoplasms with a wide range of histopathological appearance and clinical features. To date, most of the epidemiological studies on salivary gland tumours are limited for a variety of reason including being out of date, extrapolated from either a single centre or country studies, or investigating either major or minor glands only. Methods This study aimed to mitigate these shortcomings by analysing epidemiological data including demographic, anatomical location and histological diagnoses of SGT from multiple centres across the world. The analysed data included age, gender, location and histological diagnosis from fifteen centres covering the majority of the world health organisation (WHO) geographical regions between 2006 and 2019. Results A total of 5739 cases were analysed including 65% benign and 35% malignant tumours. A slight female predilection (54%) and peak incidence between the fourth and seventh decade for both benign and malignant tumours was observed. The majority (68%) of the SGT presented in major and 32% in the minor glands. The parotid gland was the most common location (70%) for benign and minor glands (47%) for malignant tumours. Pleomorphic adenoma (70%), and Warthin’s tumour (17%), were the most common benign tumours whereas mucoepidermoid carcinoma (26%) and adenoid cystic carcinoma (17%) were the most frequent malignant tumours. Conclusions This multicentre investigation presents the largest cohort study to date analysing salivary gland tumour data from tertiary centres scattered across the globe. These findings should serve as a baseline for future studies evaluating the epidemiological landscape of these tumours