Publications by authors named "Zvi Herscovici"
Real-time source localization is crucial for high-end automation and artificial intelligence (AI) products. However, a low signal-to-noise ratio (SNR) and limited processing time can reduce localization accuracy. This work proposes a new architecture for a time-domain feedback-based beamformer that meets real-time processing demands.
View Article and Find Full Text PDFPurpose: To model and analyse the ocular biometry of new-born infants.
Methods: This work is based on previously published data of a cohort of 66 new-born infants aged 0-3 days. After exclusion of seven myopic subjects, the available retinoscopy, keratometry and ultrasound biometry data were analysed, along with calculated parameters such as lens power and whole eye power.
Background: Nowadays meningiomas are frequently detected incidentally. Their natural history has not yet been established because it is difficult to predict the growth pattern. Therefore, the management, after the radiological diagnosis, is still controversial.
View Article and Find Full Text PDFArticle Synopsis
- The study aimed to identify when the oculocephalic reflex is suppressed in infants and how it relates to clinical factors like age and weight.
- Conducted on 325 healthy babies, the reflex was tested by moving their heads and observing eye movements, determining that 75% had the reflex suppressed by 11.5 weeks.
- Results indicated that postpartum age was the most significant factor influencing the suppression, and the reflex’s disappearance is a normal part of visual system maturation.*
Article Synopsis
- The study investigated how intravitreal injection of bevacizumab (Avastin) affects the growth and structure of young rabbits' eyes.
- Twelve rabbits received the treatment in one eye, while six additional rabbits acted as control subjects without any injection.
- Results showed no significant differences in eye growth or structure between treated and untreated eyes, suggesting that bevacizumab does not negatively impact the development of young rabbit eyes.
Systemic allergic reaction to tree processionary caterpillar in children.
Pediatr Emerg Care
April 2008
Contact with the tree processionary caterpillar or ingestion/inhalation of its airborne toxin-containing hairs and spines may cause a direct histamine-releasing or IgE-mediated allergic reaction in humans. The most common manifestations are urticaria and dermatitis; systemic manifestations such as respiratory involvement and anaphylaxis have been reported mainly in foresters. We describe a 12-year-old child who was presented to the emergency department with systemic allergic reaction (pruritic rash, conjunctival hyperemia, dyspnea, and wheezing), which eventually proved to be due to exposure to the pine tree processionary caterpillar.
View Article and Find Full Text PDFArticle Synopsis
- The study aimed to examine the impact of in vitro fertilization (IVF) on the eye development of full-term infants.
- It involved a case-control approach, comparing 32 IVF-conceived infants with 34 naturally conceived infants, measuring various health metrics and conducting a comprehensive eye exam.
- Results showed no significant differences in most eye development metrics, suggesting IVF does not negatively affect early eye development in healthy infants, although smaller IVF infants exhibited some variations in corneal characteristics that might indicate delayed maturation.
Background: Hyperglycemia, high blood pressure and hypercholesterolemia are risk factors for diabetic retinopathy and vision loss in diabetic patients.
Objectives: To evaluate risk factors in patients treated for diabetic retinopathy in our hospital clinic and assess patients' awareness of the impact of glycemic control; and to compare the findings with those in patients followed in a community clinic.
Methods: We performed a cross-sectional comparative study that included 178 consecutive patients with type 2 diabetes mellitus treated in the Retinal Vascular Service of Rabin Medical Center from 1 September to 31 December 2004, and 107 consecutive patients with type 2 diabetes mellitus examined in a community clinic during the same period.
Purpose: To gain a better understanding of the molecular events leading to the development of conjunctival melanocytic lesions and conjunctival melanoma, this study was conducted to investigate the presence of T1799A BRAF oncogenic mutation in these lesions.
Methods: Forty-eight surgically excised conjunctival melanocytic lesions from 48 patients were examined for the presence of the BRAF T1799A mutation. Twenty-eight lesions were conjunctival nevi, of which 20 were excised from children younger than 18 years.