Fertility and pregnancy complications in female orthopaedic surgeons.

Background: While the number of female medical graduates continues to increase, only a few pursue an orthopaedic career. This is related to challenges regarding pregnancy and the peripartum period during orthopaedic training.

Aims: To evaluate fertility, pregnancy-related complications and attitudes towards female orthopaedic surgeons in Israel.

Reasons for Surgical Delay in Patients With Hip Fracture.

Introduction: 15% of patients with hip fracture older than 65 years in Israel have delayed surgery. The aim of this study was to determine which patient and/or organizational factors are associated with a delay of beyond 48 hours in hip fracture repair surgery.

Methods: A retrospective cohort study of 281 patients with hip fracture who underwent surgery during 2019-2020.

Minimizing treatment complexity of combat-related soft tissue injuries using a dedicated tension relief system and negative pressure therapy augmented by high-dose antibiotic therapy and oxygen delivery: a retrospective study.

Background: Following combat-related, extensive soft tissue injury from gunshot wounds or blasts, prolonged duration from injury to full wound closure is associated with infection, increased morbidity and mortality, failure to mobilize, poor functional outcome and increased cost. The purpose of this study was to evaluate a novel treatment enabling early primary closure of combat wounds.

Methods: This was a retrospective study of 10 soldiers and civilians with extensive combat-related soft tissue limb injuries (5 gunshot wounds, 5 blasts) treated using the TopClosure Tension Relief System (TRS) with simultaneous administration of regulated oxygen-enriched and irrigation negative pressure-assisted wound therapy (ROINPT) via the Vcare α device.

Timing of antimicrobial initiation and reduced infection risk in open limb fractures: a cohort study.

To assess whether early administration of antimicrobials in open fractures of the limbs reduces infection risk. A historical cohort study included all adult patients admitted with an open fracture of the limbs, between January 1, 2012, and December 31, 2016. Epidemiological, clinical, and microbiological data was collected and analyzed.

Nanoscale thermal imaging of dissipation in quantum systems.

Energy dissipation is a fundamental process governing the dynamics of physical, chemical and biological systems. It is also one of the main characteristics that distinguish quantum from classical phenomena. In particular, in condensed matter physics, scattering mechanisms, loss of quantum information or breakdown of topological protection are deeply rooted in the intricate details of how and where the dissipation occurs.

Defect-Free Carbon Nanotube Coils.

Carbon nanotubes are promising building blocks for various nanoelectronic components. A highly desirable geometry for such applications is a coil. However, coiled nanotube structures reported so far were inherently defective or had no free ends accessible for contacting.

Charge transfer between carbon nanotubes on surfaces.

The charge transfer between neighboring single-walled carbon nanotubes (SWNTs) on a silicon oxide surface was investigated as a function of both the SWNT nature (metallic or semiconducting) and the anode/cathode distance using scanning probe techniques. Two main mechanisms were observed: a direct electron tunneling described by the typical Fowler-Nordheim model, and indirect electron transfer (hopping) mediated by functional groups on the supporting surface. Both mechanisms depend on the SWNT nature and on the anode/cathode separation: direct electron tunneling dominates the charge transfer process for metallic SWNTs, especially for large distances, while both mechanisms compete with each other for semiconducting SWNTs, prevailing one over the other depending on the anode/cathode separation.

Strain Discontinuity, Avalanche, and Memory in Carbon Nanotube Serpentine Systems.

This work addresses the problem of how a nano-object adheres to a supporting media. The case of study are the serpentine-like structures of single-wall carbon nanotubes (SWNTs) grown on vicinal crystalline quartz. We develop in situ nanomanipulation and confocal Raman spectroscopy in such systems, and to explain the results, we propose a dynamical equation in which static friction is treated phenomenologically and implemented as cutoff for velocities, via Heaviside step function and an adhesion force tensor.

Dynamics of the formation of carbon nanotube serpentines.

Recently, Geblinger et al. [Nat. Nanotechnol.

Modulating the electronic properties along carbon nanotubes via tube-substrate interaction.

We study single wall carbon nanotubes (SWNTs) deposited on quartz. Their Raman spectrum depends on the tube-substrate morphology, and in some cases, it shows that the same SWNT-on-quartz system exhibits a mixture of semiconductor and metal behavior, depending on the orientation between the tube and the substrate. We also address the problem using electric force microscopy and ab initio calculations, both showing that the electronic properties along a single SWNT are being modulated via tube-substrate interaction.

[The psychological (long-term) sequelae of abortion].

This article aims to review the available literature on the short and long-term psychological sequelae of abortion. This subject remains controversial. The most common reactions women experienced after pregnancy loss were grief, depression and anxiety.