University of Geneva

About: University of Geneva is a education organization based out in Geneva, Switzerland. It is known for research contribution in the topics: Population & Galaxy. The organization has 26887 authors who have published 65265 publications receiving 2931373 citations. The organization is also known as: Geneva University & Universite de Geneve.

Pseudogap Precursor of the Superconducting Gap in Under- and Overdoped Bi 2 Sr 2 CaCu 2 O 8 + δ

Abstract: We present tunneling spectroscopy of ${\mathrm{Bi}}_{2}{\mathrm{Sr}}_{2}{\mathrm{CaCu}}_{2}{\mathrm{O}}_{8+\ensuremath{\delta}}$ single crystals as a function of oxygen doping and temperature. The doping dependence amounts essentially to an energy scaling of the tunneling spectra, with a quasiparticle gap that is reduced with increasing oxygen concentration. This superconducting gap is temperature independent up to the superconducting transition where the superconducting spectra merge continuously into another gaplike feature at the Fermi level. This pseudogap is found to be present both in underdoped and overdoped samples, and it scales with the superconducting gap.

Executive summary: diagnosis and management of prosthetic joint infection: clinical practice guidelines by the Infectious Diseases Society of America.

Abstract: These guidelines are intended for use by infectious disease specialists, orthopedists, and other healthcare professionals who care for patients with prosthetic joint infection (PJI). They include evidence-based and opinion-based recommendations for the diagnosis and management of patients with PJI treated with debridement and retention of the prosthesis, resection arthroplasty with or without subsequent staged reimplantation, 1-stage reimplantation, and amputation.

Quantum communication

Abstract: ▓ Local Randomness for True Random Number generators ▓ Non-local Randomness for distribution of Cryptographic Keys ▓ Towards faster, longer distances and cheaper QKD engines ▓ Quantum Repeaters ▓ Device-Independent Quantum Information Processing

Microsatellite alterations in serum DNA of head and neck cancer patients.

Abstract: Microsatellite DNA alterations are an integral part of neoplastic progression and are valuable as clonal markers for the detection of human cancers1–3. Moreover, recent evidence suggests that senescent tumor cells may release DNA into the circulation, which is subsequently carried by and therefore enriched in the serum and plasma4,5. We tested 21 patients with primary head and neck squamous cell carcinoma (HNSCC) by polymerase chain reaction (PCR)–based microsatellite analysis of DNA from lymphocytes and paired serum samples. Patients were scored for alterations as defined by the presence of new alleles (shifts) or loss of heterozygosity (LOH) in serum at each of 12 markers and then compared with primary tumor DNA. Six out of 21 patients (29%) were found to have one or more microsatellite alterations in serum precisely matching those in the primary tumors. All six patients had advanced disease (stage III or IV); five of these patients had nodal metastases, three later developed distant metastases, and four died of disease. Microsatellite analysis of serum represents a novel method for the detection of circulating tumor cell DNA. If these results are confirmed in larger studies, microsatellite markers may be useful in assessing tumor burden in cancer patients.