Search results for "signe"
showing 10 items of 145 documents
Whole-body magnetic resonance imaging and FDG-PET/CT for lymphoma staging: Assessment of patient experience
2017
Purpose: To compare patient experience of whole-body MRI and FDG-PET/CT performed for lymphoma staging. Methods: One-hundred-fifteen patients (59 males, 56 females; 53 Hodgkin, 62 non-Hodgkin; mean age: 43.8 years) with lymphoma underwent whole-body MRI and FDG-PET/CT for staging and filled a questionnaire regarding their experience of the examinations using a 4-point Likert scale (1, very good; 4,very bad). Differences were evaluated using Wilcoxon signed-rank test. Patients were asked to express their preference on both techniques. Preferences were compared on the basis of gender, age, and Ann Arbor stage using the chi-square test. A p-value ≤ .05 was considered significant. Results: Most…
Sensitive screening of synthetic cannabinoids using liquid chromatography quadrupole time-of-flight mass spectrometry after solid phase extraction.
2021
Analysis of synthetic cannabinoids still poses a challenge for many institutions due to the number of available substances and the constantly changing drug market. Both new and well-known substances keep appearing and disappearing on the market, making it hard to adapt analytical methods in a timely manner. In this study, we developed a qualitative screening approach for synthetic cannabinoids and their metabolites by means of liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS). Samples were measured in data-dependent auto-MS/MS mode and identified by fragment spectra, retention time and accurate mass. Two established solid phase extractions were compared using fo…
Eight-Year Health Risks Trend Analysis of a Comprehensive Workplace Health Promotion Program.
2020
Research has shown that workplace health promotion (WHP) efforts can positively affect employees&rsquo
Fracture resistance and failure mode of posterior fixed dental prostheses fabricated with two zirconia CAD/CAM systems.
2014
Background In recent years there has been an improvement of zirconia ceramic materials to replace posterior missing teeth. To date little in vitro studies has been carried out on the fracture resistance of zirconia veneered posterior fixed dental prostheses. This study investigated the fracture resistance and the failure mode of 3-unit zirconia-based posterior fixed dental prostheses fabricated with two CAD/CAM systems. Material and Methods Twenty posterior fixed dental prostheses were studied. Samples were randomly divided into two groups (n=10 each) according to the zirconia ceramic analyzed: Lava and Procera. Specimens were loaded until fracture under static load. Data were analyzed usin…
CandidaDB: a genome database for Candida albicans pathogenomics.
2004
CandidaDB is accessible at http://genolist.pasteur.fr/CandidaDB.; International audience; CandidaDB is a database dedicated to the genome of the most prevalent systemic fungal pathogen of humans, Candida albicans. CandidaDB is based on an annotation of the Stanford Genome Technology Center C.albicans genome sequence data by the European Galar Fungail Consortium. CandidaDB Release 2.0 (June 2004) contains information pertaining to Assembly 19 of the genome of C.albicans strain SC5314. The current release contains 6244 annotated entries corresponding to 130 tRNA genes and 5917 protein-coding genes. For these, it provides tentative functional assignments along with numerous pre-run analyses th…
Comparison of histological and computed tomographic measurements of pig lung bronchi.
2020
Aim Light microscopy is used as template in the evaluation and further development of medical imaging methods. Tissue shrinkage caused by histological processing is known to influence lung tissue dimensions. In diagnosis of COPD, computed tomography (CT) is widely used for automated airway measurement. The aim of this study was to compare histological and computed tomographic measurements of pig lung bronchi. Methods Airway measurements of pig lungs were performed after freezing under controlled inflation pressure in a liquid nitrogen bath. The wall thickness of seven bronchi was measured via Micro-CT and CT using the integral-based method (IBM) and the full-width-at-half-maximum method (FW…
Novel high-performance QCA Fredkin gate and designing scalable QCA binary to gray and vice versa
2022
AbstractIn the design of digital logic circuits, QCA technology is an excellent alternative to CMOS technology. Its advantages over CMOS include low power consumption, fast circuit switching, and nanoscale design. Circuits that convert data between different formats are code converters. Code converters have an essential role in high-performance computing and signal processing. In this paper, first, we proposed a novel QCA structure for the quantum reversible Fredkin gate. Second, we proposed 4-bit and 8-bit QCA binary-to-gray converter and vice versa. For the second proposal, both reversible and irreversible structures are suggested. The proposed structures are scalable up to N bits. To cha…
Comparison of Single-Echo T2-weighted Fast Spin-Echo and Conventional Spin-Echo MR Sequences
1998
We compared single-echo T2-weighted fast spin-echo (FSE) magnetic resonance imaging and conventional spin-echo (CSE) T2-weighted imaging in the detection of brain lesions of multiple sclerosis (MS). 16 patients with clinically definite MS underwent brain imaging at 0.5 T with T2-weighted single-echo fast spin-echo (FSE) and conventional spin-echo (CSE) sequences. Image analysis was performed by three of the investigators who worked together to reduce interobserver variability. Statistical analysis was performed using Student's t test to assess the difference in the contrast-to-noise (C/N) ratio of MS lesions between CSE and FSE sequences. The Wilcoxon signed rank test was used to evaluate …
Presentazione. Distacco, poetica, eresia: tre parole chiave per introdurre le opere e il lavoro di Umberto Riva
2023
Questo volume raccoglie una vasta e articolata gamma di contributi che analizzano le opere e le esperienze progettuali di Umberto Riva, da prospettive diverse: le diverse prospettive non si differenziano fra loro soltanto per ciò che riguarda le competenze disciplinari degli Autori dei contributi, ma anche per il metodo di analisi critica impiegato, e per la forma narrativa che ne consegue. Quest’ultima, in particolare, risente anche delle differenze generazionali fra gli Autori: la dimensione della memoria e della narrazione retrospettiva di esperienze condivise prevale, come è naturale che sia, in coloro che con Umberto Riva hanno condiviso attività, riflessioni, sperimentazioni, come nel…
斯蒂法诺 阿斯利. Stefano Asili / Homo faber designer. Stefano Asili
2013
Stefano Asili 的职业道路曲折而不寻常，但 个中乐趣并未因此而减少。他没有像大多数 人一样，就读于艺术相关的专业，然后理所 当然地锁定最终的职业方向。他就读于和艺 术毫无关联的物理专业。但毕业后，他才明 白自己这一生想投身的事业，也就是 Albe Steiner 描述的，平面设计这门手艺。我在这 里用的词是“手艺”而非“职业”是有充分 理由的。相较于“职业”，“手艺”这一概 念从工艺的角度更强调人和物的密切关系， 这种关系是这两者间持续的对话，中间包含 思想、研究、实验以及改变的交流。这种关 系毋庸置疑已成为工艺实践的核心 Strano e tortuoso, ma non per questo meno interessante, è il percorso di Stefano Asili. Egli non ha come la maggior parte delle persone, compiuto degli studi che in maniera naturale lo hanno condotto alla definitiva configurazione professionale. Egli è arrivato da lontano, da una disciplina scientifica come la fisica, nella quale si è laureato, a comprendere che quanto voleva fare nella sua vita, era proprio il mestiere di g…