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World Journal of Cardiovascular Diseases 2013年第3期3卷 336-338页

作者： eitan Heldenberg Arie Bass Department of Vascular Surgery Assaf Harofeh Medical Center Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel

Cerebral hyperperfusion syndrome (CHPS) is a rare, complication of carotid artery revascularization. Acute retinal hemorrhage is a very rare entity previously described as a manifestation of CHPS following carotid artery stenting (CAS), but to the best of our knowledge, not yet described as a complication of carotid surgery. An Ascending Aorta to bilateral Carotid bypass was performed in a 35-year-old woman with active Takayasu arteritis and 95% symptomatic stenosis of both common carotid arteries. Severe retinal hemorrhage appeared on the second post operative day combined with high blood pressure, brain edema on CT scan and grand mal seizures. It seems that fundoscopic examination following carotid revascularization of tight can be helpful in identifying those patients who develop symptoms suggesting of CHPS.

关键词： Cerebral Hyper Perfusion Syndrome Takayasu Arteritis Retinal Hemorrhage

Control of electron beam current,charge,and energy spread using density downramp injection in laser wakefield accelerators

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Matter and Radiation at Extremes 2023年第2期8卷 14-24页

作者： Céline S.Hue Yang Wan eitan Y.Levine Victor Malka Department of Physics of Complex Systems Weizmann Institute of ScienceRehovotIsrael

Density downramp injection has been demonstrated to be an elegant and efficient approach for generating high-quality electron beams in laser wakefield *** studies have demonstrated the possibilities of generating electron beams with charges ranging from tens to hundreds of picocoulombs while maintaining good beam ***,the plasma and laser parameters in these studies have been limited to specific ranges or attention has been focused on separate physical processes such as beam loading,which affects the uniformity of the accelerating field and thus the energy spread of the trapped electrons,the repulsive force from the rear spike of the bubble,which reduces the transverse momentum P⊥of the trapped electrons and results in small beam emittance,and the laser evolution when traveling in the *** this work,we present a comprehensive numerical study of downramp injection in the laser wakefield,and we demonstrate that the current profile of the injected electron beam is directly correlated with the density transition parameters,which further affects the beam charge and energy *** fine-tuning the plasma density parameters,electron beams with high charge(up to several hundreds of picocoulombs)and low energy spread(around 1%FWHM)can be *** these results are supported by large-scale quasi-threedimensional particle-in-cell *** anticipate that the electron beams with tunable beam properties generated using this approach will be suitable for a wide range of applications.

关键词： tuning beam injection

Q Fever in Pregnancy—Case Presentation and Literature Review

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International Journal of Clinical Medicine 2013年第8期4卷 364-368页

作者： Kugler eitan Amital Howard Alon Danny Rabin Medical Center Beilinson Hospital Department of Medicine B Petah Tikva Israel Rabin Medical Center Beilinson Hospital Department of Medicine F Petah Tikva Israel Sheba Medical Center Department of Medicine B Tel Hashomer Israel

Q fever is a widespread zoonotic infection caused by Coxiella burnetii. During acute infection, three clinical patterns are commonly encountered—self limited, flu like disease, atypical pneumonia or hepatits. Chronic infection almost always implies endocarditis. Acute infection during pregnancy may result in obstetrical complications, and predispose to chronic transformation. Treatment during pregnancy is more complex, and the duration of treatment was debatable up until recently. We describe a 31 years old patient with acute Q fever infection during pregnancy. We review the medical treatment, complications and follow up of acute and chronic Q fever during pregnancy.

关键词： Q Fever Coxiella burnetii Pregnancy

A General SDN-Based IoT Framework with NVF Implementation

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ZTE Communications 2015年第3期13卷 42-45页

作者： Jie Li eitan Altman Corinne Touati Faculty of Engineering Information and SystemsUniversity of Tsukuba National Research Institute in Computer Science and Control (INRIA)

The emerging technologies of Internet of Things （IoT）, soft-ware defined networking （SDN）, and network function virtualization （NFV） have great potential for the information service innovation in the cloud and big data era. The architecture models of IoT, SDN with NFV implementation are studied in this paper. A general SDN-based loT framework with NFV implantation is presented. This framework takes advantages of SDN and NFV and improves IoT architecture.

关键词： Internet of Things saftware defined networking network function virtualization

Tailor-Made Electrospun Culture Scaffolds Control Human Neural Progenitor Cell Behavior—Studies on Cellular Migration and Phenotypic Differentiation

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Journal of Biomaterials and Nanobiotechnology 2017年第1期8卷 1-21页

作者： Ulrica Englund-Johansson eitan Netanyah Fredrik Johansson Department of Clinical Sciences in Lund Division of Ophthalmology Lund University Lund Sweden Department of Biology Section Functional Zoology Lund University Lund Sweden

In neuroscience research, cell culture systems are essential experimental platforms. It is of great interest to explore in vivo-like culture substrates. We explored how basic properties of neural cells, nuclei polarization, phenotypic differentiation and distribution/migration, were affected by the culture at poly-L-lactic acid (PLLA) fibrous scaffolds, using a multipotent mitogen-expanded human neural progenitor cell (HNPC) line. HNPCs were seeded, at four different surfaces: two different electrospun PLLA (d = 1.2 - 1.3 μm) substrates (parallel or random aligned fibers), and planar PLL- and PLLA surfaces. Nuclei analysis demonstrated a non-directed cellular migration at planar surfaces and random fibers, different from cultures at aligned fibers where HNPCs were oriented parallel with the fibers. At aligned fibers, HNPCs displayed the same capacity for phenotypic differentiation as after culture on the planar surfaces. However, at random fibers, HNPCs showed a significant lower level of phenotypic differentiation compared with cultures at the planar surfaces. A clear trend towards greater neuronal formation at aligned fibers, compared to cultures at random fibers, was noted. We demonstrated that the topography of in vivo-resembling PLLA scaffolds significantly influences HNPC behavior, proven by different migration behavior, phenotypic differentiation potential and nuclei polarization. This knowledge is useful in future exploration of in vivo-resembling neural cell system using electrospun scaffolds.

关键词： Human Stem Cells PLLA Electrospinning Differentiation Migration

Laser Treatment of Epistaxis and Oral Bleeding in Hereditary Hemorrhagic Telangiectasia

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International Journal of Otolaryngology and Head & Neck Surgery 2019年第5期8卷 180-190页

作者： Dan Yaniv Uri Alkan eitan Yaniv Calin Bumbulut Lea Rath-Wolfson Department of Otorhinolaryngology-Head and Neck Surgery Rabin Medical CenterBeilinson HospitalPetach TikvaIsrael Sackler Faculty of Medicine Tel Aviv UniversityTel AvivIsrael Civil Medical Society Satu MareRomania Department of Pathology Rabin Medical CenterHasharon HospitalPetach TikvaIsrael

Background: Hereditary hemorrhagic telangiectasia (HHT) is a relatively common, albeit under-recognized autosomal-dominant multisystemic vascular disorder. Epistaxis due to telangiectases in the nasal mucosa is the most common and often the earliest symptom of HHT. As many as 90% of affected individuals eventually experience recurrent epistaxis, with a mean frequency of 18 episodes per month. Prompted by the limitations of invasive treatment, researchers have directed attention to laser photocoagulation as an alternative nonsurgical treatment modality with promising results. Purpose: The purpose of the present study was to describe our experience with the state-of-the-art 980 nm diode laser for the treatment of bleeding lesions of the skin, nasal and oral mucosa in patients with HHT. Methodology/Principal: We treated 16 HHT patients with intractable bleeding from telangiectasias using the 980-nm diode laser as an office procedure using local anesthesia. We recorded hemoglobin levels before and after treatment and used disability questionnaires. Results: All patients treated had an improvement in hemoglobin levels and disability scores. In patients with multiple lesions hemoglobin levels improved from a mean of 8.4 to 11.2 (p = 0.008). The disability index in this group improved from a mean of 5.3 to 2.8 (p = 0.007). Follow-up ranged between 4 and 12 months. Conclusions: The 980-nm diode laser is a good office based solution for bleeding in HHT.

关键词： HHT Laser Epistaxis Osler-Weber-Rendu

Does capsule endoscopy have an added value in patients with perianal disease and a negative work up for Crohn's disease?

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World Journal of Gastrointestinal Endoscopy 2012年第5期4卷 185-188页

作者： Samuel N Adler Metzger Yoav Scapa eitan Chowers Yehuda Rami Eliakim Departments of Gastroenterology Bikur Holim HospitalJerusalem91104(ASNMY)Asaf HarofehZrifin 70300(ES)and Rambam Health Care CampusHaifa 31096(CYER)Israel

AIM:To investigate the role of capsule endoscopy in patients with persistent perianal disease and negative conventional work up for Crohn's disease(CD).METHODS:Patients with perianal disease(abscesses,fistulas,recurrent fissures) were evaluated for underlying *** who had a negative work up,defined as a negative colonoscopy with a normal ileoscopy or a normal small bowel series or a normal CT/MR enterography,underwent a Pillcam study of the small bowel after signing informed *** using nonsteroidal anti-inflammatory drugs or who had a history of inflammatory bowel disease or rheumatic disease were ***:We recruited 26 patients aged 21-61 years(average 35.6 years),17 males and 9 *** case could not be evaluated since the capsule did not leave the *** 6 of 25(24%) patients with a negative standard work up for Crohn's disease,capsuleendoscopy(CE) findings were consistent with Crohn's disease of the small *** history of CD,white blood cell,hemoglobin,erythrocyte sedimentation rate or C-reactive protein did not predict a diagnosis of *** endoscopy findings led to a change in ***:In patients with perianal disease and a negative conventional work up to exclude CD,CE leads to incremental diagnostic yield of 24%.

关键词： Perianal abscess Perianal fistula Ileocolonoscopy Capsule endoscopy Crohn’s disease

Conversion of out-of-phase to in-phase order in coupled laser arrays with second harmonics

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Photonics Research 2015年第3期3卷 77-81页

作者： Chene Tradonsky Micha Nixon eitan Ronen Vishwa Pal Ronen Chriki Asher A.Friesem Nir Davidson Department of Physics of Complex Systems Weizmann Institute of Science

A novel method for converting an array of out-of-phase lasers into one of in-phase lasers that can be tightly focused is *** method exploits second-harmonic generation and can be adapted for different laser arrays *** and calculated results,presented for negatively coupled lasers formed in a square,honeycomb,and triangular geometries are in good agreement.

关键词： Conversion of out-of-phase to in-phase order in coupled laser arrays with second harmonics

Addressing poxvirus challenges in the Middle East to enhance biosafety and biosecurity measures

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Journal of Biosafety and Biosecurity

Journal of Biosafety and Biosecurity 2024年第3期6卷 142-156页

作者： Laith N.AL-eitan Haneen O.Ali Hana S.Abu Kharmah Maryam K.Alasmar Iliya Y.Khair Ahmad H.Mihyar Department of Applied Biological Sciences Jordan University of Science and Technology22110 IrbidJordan Department of Biotechnology and Genetic Engineering Jordan University of Science and Technology22110 IrbidJordan

The emergence and zoonotic transmission of poxviruses in the Middle East have been recognized as complex public health ***,a vast family of DNA viruses,can infect many hosts,including animals and *** Middle East has had multiple epidemics of poxvirus infections(e.g.,Monkeypox,Smallpox,and Camelpox)that have raised concerns owing to their detrimental effects on livestock,wildlife,and sporadic human *** review aims to thoroughly examine the complexity of the epidemiological patterns,intricate genetic diversity,and several contributing factors that support the emergence and zoonotic transmission of poxviruses in the Middle *** aspects of poxviruses contribute to the emergence of endemics and zoonotic breakouts,such as the complex nature of human-animal interactions,environmental changes,and their subtle capacity for viral *** review was compiled in the hopes of contributing to the current understanding of poxvirus biology and its implications for human and animal health in the Middle *** provide a comprehensive overview of the most common poxviruses in the Middle East,including their classification,structure,replication cycle,pathogenesis,route of transmissions,and of how the Middle East has developed ways to mitigate these biological threats.

关键词： Pox viruses Middle East Emergence Zoonotic Transmission