Search results for "pathology [Aging]"

Elektro-Okulographie bei Hirnstammerkrankungen

2011

Zusammenfassung Augenbewegungsstorungen sind haufige und typische Symptomen von Hirnstammerkrankungen. Hier liegt die Bedeutung der Elektrookulographie in erster Linie in der Aufdeckung subklinischer Veranderungen (Abb. 1) und weniger in der Bestatigung klinisch evidenter Storungen. Hierzu eignet sich vor allem die Aufzeichnung von Willkursakkaden, die im Allgemeinen bezuglich Geschwindigkeit und Zielgenauigkeit analysiert werden. Hiermit konnen bei Patienten mit multipler Sklerose oder Bewegungsstorungen (M. Parkinson, progressive supranukleare Parese, Chorea Huntington) eine Reihe recht typischer Befunde erhoben werden, die bei der Diagnose hilfreich sein konnen. Dabei legen neuere Studie…

Direct interpretation of near-field optical images.

2001

The interpretation of the detection process in near-field optical microscopy is reviewed on the basis of a discussion about the possibility of establishing direct comparisons between experimental images and the solutions of Maxwell equations or the electromagnetic local density of states. On the basis of simple physical arguments, it is expected that the solutions of Maxwell equations should agree with images obtained by collecting mode near-field microscopes, while the electromagnetic local density of states should be considered to provide a practical interpretation of illumination mode near-field microscopes. We review collecting mode near-field microscope images where the conditions to o…

Peculiarities of imaging one- and two-dimensional structures using an electron microscope in the mirror operation mode.

2001

Measurements performed in an electron microscope with the mirror operation mode are most sensitive to local electric fields and geometrical roughness of any kind of the object being studied. The object with a geometrical relief is equivalent to a smooth surface with an effective distribution of microfields. Electrons forming the image interact with the local microfields for an extended time: during approach to the object, deceleration and acceleration away from the object. As a result, the electron trajectories can be strongly distorted, and the contrast changes essentially, leading to image deformation of details of the object under investigation and to lowering of the resolution. These ef…

PCR for the detection of pathogens in neonatal early onset sepsis.

2020

Background A large proportion of neonates are treated for presumed bacterial sepsis with broad spectrum antibiotics even though their blood cultures subsequently show no growth. This study aimed to investigate PCR-based methods to identify pathogens not detected by conventional culture. Methods Whole blood samples of 208 neonates with suspected early onset sepsis were tested using a panel of multiplexed bacterial PCRs targeting Streptococcus pneumoniae, Streptococcus agalactiae (GBS), Staphylococcus aureus, Streptococcus pyogenes (GAS), Enterobacteriaceae, Enterococcus faecalis, Enterococcus faecium, Ureaplasma parvum, Ureaplasma urealyticum, Mycoplasma hominis and Mycoplasma genitalium, a …

Dynamic of the genetic structure of bacterial and fungal communities at different developmental stages of Medicago truncatula Gaertn. cv. Jemalong li…

2006

International audience; The genetic structure of bacterial and fungal communities was characterized in the rhizosphere of Medicago truncatula Gaertn. cv. Jemalong line J5 at five developmental stages (three vegetative and two reproductive stages), and in three compartments (bulk soil, rhizosphere soil and root tissues). The genetic structure of microbial communities was determined by cultivation-independent methods using directly extracted DNA that was characterized by automated ribosomal intergenic spacer analysis (ARISA). Principal component analyses (PCA) indicate that, for all developmental stages, the genetic structure of microbial communities differed significantly by compartment, wit…

Modic changes-Their associations with low back pain and activity limitation: A systematic literature review and meta-analysis.

2018

Background Previous systematic reviews have reported positive associations between Modic changes (MCs) and low back pain (LBP), but due to their narrow scope and new primary studies, there is a need for a comprehensive systematic review. Our objectives were to investigate if MCs are associated with non-specific LBP and/or activity limitation and if such associations are modified by other factors. Methods A protocol for this review was registered at PROSPERO prior to commencing the work (PROSPERO record: CRD42015017350). The MEDLINE, CINAHL and EMBASE databases were searched for relevant studies from first record to June 15th 2016. Prospective or retrospective cross-sectional cohort studies …

Imprisoned But Innocent: Wrongful Convictions and Imprisonments in Germany, 1990-2016

2019

Although in the United States wrongful convictions and imprisonments are a major public and scientific concern, this topic has been largely ignored in Germany for decades. The present article offers for the first time an overview of all accessible German cases of successful retrials involving convicted persons who served a prison sentence since 1990. The data refer to 31 wrongfully convicted persons in 29 independent cases. Although the largest group consists of cases of false allegations, some of the wrongly convicted were considered not guilty by reason of insanity, and a few wrongful convictions occurred because of eyewitness misidentification and false confessions. In addition, incorre…

Tödliche Hundebisse im Sektionsgut rechtsmedizinischer Institute

2001

Hundebisse werden im angelsachsischen Raum als ernstes medizinisches, soziales und legislatorisches Problem angesehen, wohingegen in der deutschsprachigen Literatur nahezu keine Angaben uber die Inzidenz derartiger, insbesondere letal ausgehender Verletzungen zu finden sind. Zur Gewinnung von Daten uber todliche Hundebiss-Vorfalle in einem ungefahr 10 Jahre umfassenden Zeitraum wurde ein Fragebogen an alle rechtsmedizinischen Institute in Deutschland, der Schweiz und Osterreich versandt. Aus 13 Instituten wurden 20 Falle berichtet, unter denen 11-mal als Todesursache Verbluten und 3-mal eine schwere Infektion genannt wurden. Funfmal war es zu einem Schadel-Hirn-Trauma und 7-mal zu einer Hal…

Unfallflucht und Kopflosigkeit

1963

Extranodal extension of lymph node metastasis is a marker of poor prognosis in oesophageal cancer: A systematic review with meta-analysis

2016

The extranodal extension (ENE) of nodal metastasis is the extension of neoplastic cells through the nodal capsule into the perinodal adipose tissue. This histological feature has recently been indicated as an important prognostic factor in different types of malignancies; in this manuscript, we aim at defining its role in the prognosis of oesophageal cancer with the tool of meta-analysis. Two independent authors searched SCOPUS and PubMed until 31 August 2015 without language restrictions. The studies with available data about prognostic parameters in subjects with oesophageal cancer, comparing patients with the presence of ENE (ENE+) versus only intranodal extension (ENE-), were considered…