keyword
https://read.qxmd.com/read/31877928/grain-structure-evolution-of-al-cu-alloys-in-powder-bed-fusion-with-laser-beam-for-excellent-mechanical-properties
#21
JOURNAL ARTICLE
Michael Rasch, Johannes Heberle, Maximilian A Dechet, Dominic Bartels, Martin R Gotterbarm, Lukas Klein, Andrey Gorunov, Jochen Schmidt, Carolin Körner, Wolfgang Peukert, Michael Schmidt
Powder Bed Fusion with Laser Beam of Metals (PBF-LB/M) is one of the fastest growing technology branches. More and more metallic alloys are being qualified, but processing of aluminum wrought alloys without cracks and defects is still challenging. It has already been shown that small parts with low residual porosity can be produced. However, suffering from microscopic hot cracks, the fracture behavior has been rather brittle. In this paper different combinations of temperature gradients and solidification rates are used to achieve specific solidification conditions in order to influence the resulting microstructure, as well as internal stresses...
December 23, 2019: Materials
https://read.qxmd.com/read/31364495/elderly-patients-undergoing-cystectomy-comparing-preoperative-american-society-of-anesthesiology-and-eastern-cooperative-oncology-group-scores-and-operative-approaches
#22
JOURNAL ARTICLE
Christopher Martin, Jeremy M West, Salvatore Palermo, Darshan P Patel, Angela P Presson, Evi Comploj, Armin Pycha, Joel B Hancock, Christopher B Dechet, Emanuela Trenti
OBJECTIVE: To evaluate preoperative scoring systems and operative management and their relation to complications in patients older than 75 years undergoing cystectomy at two academic institutions. METHODS: In total, 212 patients aged 75-95 years with muscle invasive bladder cancer underwent cystectomy at the University of Utah and Central Hospital of Bolzano, Italy. The rates of Grade 3 Clavien-Dindo complications and above in radical cystectomy patients (n = 199) were compared using Eastern Cooperative Oncology Group Scores and American Society of Anesthesiologists Physical Status Classification...
July 31, 2019: Urologia
https://read.qxmd.com/read/30961298/spherical-polybutylene-terephthalate-pbt-polycarbonate-pc-blend-particles-by-mechanical-alloying-and-thermal-rounding
#23
JOURNAL ARTICLE
Maximilian A Dechet, Juan S Gómez Bonilla, Lydia Lanzl, Dietmar Drummer, Andreas Bück, Jochen Schmidt, Wolfgang Peukert
In this study, the feasibility of co-grinding and the subsequent thermal rounding to produce spherical polymer blend particles for selective laser sintering (SLS) is demonstrated for polybutylene terephthalate (PBT) and polycarbonate (PC). The polymers are jointly comminuted in a planetary ball mill, and the obtained product particles are rounded in a heated downer reactor. The size distribution of PBT⁻PC composite particles is characterized with laser diffraction particle sizing, while the shape and morphology are investigated via scanning electron microscopy (SEM)...
December 11, 2018: Polymers
https://read.qxmd.com/read/30960594/analysis-of-tribo-charging-during-powder-spreading-in-selective-laser-sintering-assessment-of-polyamide-12-powder-ageing-effects-on-charging-behavior
#24
JOURNAL ARTICLE
Nicolas Hesse, Maximilian A Dechet, Juan S Gómez Bonilla, Christian Lübbert, Stephan Roth, Andreas Bück, Jochen Schmidt, Wolfgang Peukert
Powder flowability is key to achieving high process stability and part quality by application of smooth and dense layers in selective laser sintering (SLS). This study sheds light on the rarely investigated effect of tribo-electric charge build-up during powder delivery in the SLS process. This is achieved by a novel approach to quantify electrostatic potentials during doctor blading. The presented model setup is used in combination with charge spectrometry and impedance spectroscopy to investigate the alterations in tribo-electric charging behavior for the most commonly used laser sintering material polyamide 12 in its virgin and aged, c...
April 3, 2019: Polymers
https://read.qxmd.com/read/30575560/modulation-of-premetastatic-niche-by-the-vascular-endothelial-growth-factor-receptor-tyrosine-kinase-inhibitor-pazopanib-in-localized-high-risk-prostate-cancer-followed-by-radical-prostatectomy-a-phase-ii-randomized-trial
#25
RANDOMIZED CONTROLLED TRIAL
Benjamin L Maughan, Sumanta K Pal, David Gill, Kenneth Boucher, Christopher Martin, Meghan Salgia, Roberto Nussenzveig, Ting Liu, Josiah L Hawks, Julia Batten, Gayatri Nachaegari, Robert Stephenson, William Lowrance, Jeremy Jones, Christopher Dechet, Neeraj Agarwal
LESSONS LEARNED: Pazopanib was not effective in altering the premetastatic niche in the neoadjuvant setting.Pazopanib was safe and well tolerated without any new safety signals. BACKGROUND: Vascular endothelial growth factor receptor 1 (VEGFR1) expressing myeloid-derived suppressor cells (VEGFR1+ MDSCs) potentially foster metastases by establishing a premetastatic niche. In a preclinical study, VEGFR1+ clustering in lymph nodes (LNs) independently predicted time to biochemical recurrence (TTBR) in localized prostate cancer [1]...
December 2018: Oncologist
https://read.qxmd.com/read/30480501/strengthening-healthcare-facilities-through-water-sanitation-and-hygiene-wash-improvements-a-pilot-evaluation-of-wash-fit-in-togo
#26
JOURNAL ARTICLE
Nicole Weber, Andrea L Martinsen, Amidou Sani, Elom Kokou Eric Assigbley, Chedly Azzouz, Arabella Hayter, Komlan Ayite, Amivi Afefa Bibiane Baba, Kokou Mawulé Davi, Rick Gelting
Water, sanitation, and hygiene (WASH) services in healthcare facilities are essential to ensure quality health care and to facilitate infection, prevention, and control practices. They are critical to responding to outbreaks and preventing healthcare-associated infections and, therefore, critical to global health security. Many healthcare facilities in low- and middle-income settings have limited WASH services. One tool to address this issue is the World Health Organization (WHO) and United Nations Children's Fund (UNICEF) Water and Sanitation for Health Facility Improvement Tool, or "WASH FIT...
2018: Health Security
https://read.qxmd.com/read/30366023/describing-the-spectrum-of-patient-reported-outcomes-after-radical-prostatectomy-providing-information-to-improve-patient-counseling-and-shared-decision-making
#27
JOURNAL ARTICLE
Christopher Martin, Benjamin Haaland, Alexander E Tward, Christopher Dechet, Will Lowrance, Robert A Stephenson, Heidi Hanson, Brock O'Neil
PURPOSE: Preoperative counseling incorporating the best-case, worst-case, and most-likely outcome scenarios aid patients' decision making. This information is not readily available for prostate cancer counseling because most patient reported outcomes are presented as averages, which minimize individual patient experiences. Using the Expanded Prostate Index Composite (EPIC), we present data to characterize the best and worst-case after prostatectomy. MATERIALS AND METHODS: EPIC bowel, urinary irritation and continence, and sexual function scores were measured among 1418 men (stratified by baseline function) undergoing prostatectomy...
October 23, 2018: Journal of Urology
https://read.qxmd.com/read/29715655/risk-assessment-considerations-for-plant-protection-products-and-terrestrial-life-stages-of-amphibians
#28
JOURNAL ARTICLE
Lennart Weltje, Andreas Ufer, Mick Hamer, Peter Sowig, Sandra Demmig, Friedrich Dechet
Some amphibians occur in agricultural landscapes during certain periods of their life cycle and consequently might be exposed to plant protection products (PPPs). While the sensitivity of aquatic life-stages is considered to be covered by the standard assessment for aquatic organisms (especially fish), the situation is less clear for terrestrial amphibian life-stages. In this paper, considerations are presented on how a risk assessment for PPPs and terrestrial life-stages of amphibians could be conducted. It discusses available information concerning the toxicity of PPPs to terrestrial amphibians, and their potential exposure to PPPs in consideration of aspects of amphibian biology...
September 15, 2018: Science of the Total Environment
https://read.qxmd.com/read/29463972/quality-of-life-following-prostatectomy-as-a-function-of-surgery-type-and-degree-of-nerve-sparing
#29
JOURNAL ARTICLE
Donald S Strassberg, Suzanne M Zavodni, Paul Gardner, Christopher Dechet, Robert A Stephenson, Kelsey K Sewell
Objectives: To compare robotic-assisted laparoscopic prostatectomy with conventional retropubic radical prostatectomy in maintaining pre-surgery levels of urinary and sexual functioning and to evaluate the efficacy of nerve sparing in prostatectomies in protecting urinary functioning. Material and Methods: Patients (n = 385) receiving both surgical procedures were surveyed prior to surgery. Multiple measures, including the Expanded Prostate Cancer Index Composite, the Sexual Health Inventory for Men, and the International Prostate Symptom Score, assessed sexual and urinary function at an average of 12 months post-surgery...
November 2017: Current Urology
https://read.qxmd.com/read/28322856/orgasmic-function-after-radical-prostatectomy
#30
JOURNAL ARTICLE
Kefu Du, Chong Zhang, Angela P Presson, Jonathan D Tward, William O Brant, Christopher B Dechet
PURPOSE: We examined postprostatectomy orgasmic function and assessed for potential predictors. MATERIALS AND METHODS: Between 2005 and 2013, 499 men underwent radical prostatectomy and completed quality of life questionnaires prospectively before surgery and at regular postoperative intervals. We used mixed effects logistic regression models to evaluate average differences in followup measures and interactions with time. RESULTS: At a median followup of 36 months orgasmic function was worse, stable or improved in 300 (60...
August 2017: Journal of Urology
https://read.qxmd.com/read/26877375/p-076-chronic-renal-failure-and-parathyroid-hormone
#31
JOURNAL ARTICLE
O Kharoubi, A Benglia
OBJECTIFS: L'insuffisance rénale chronique (IRC) se définit comme une diminution prolongée et souvent définitive des fonctions exocrines et endocrines du rein. Cette maladie est évolutive, et lorsqu'elle atteint un stade terminal, elle est incompatible avec la vie. Afin d'évaluer cliniquement les troubles phosphocalciques, notre travail est mené chez les patients atteints d'IRC de l'ouest d'Algérie (Oran, Mostaganem, Ain Témouchent,…). Notre étude a porté sur 62 malades insuffisants rénaux chroniques...
December 2015: Annales de Cardiologie et D'angéiologie
https://read.qxmd.com/read/26849079/durable-response-to-treatment-with-combination-radiotherapy-and-high-dose-interleukin-2-in-metastatic-chromophobe-variant-renal-cell-carcinoma
#32
JOURNAL ARTICLE
Joseph Merriman, Jonathan Tward, Dan Albertson, Christopher Dechet, Neeraj Agarwal
This is a report of chromophobe renal cell carcinoma (ChRCC), a rare entity that accounts for 6% to 11% of cases of renal cell carcinoma (RCC). ChRCC is considered to yield a good prognosis as it typically presents as an early stage tumor with longer overall survival when compared with clear cell RCC; however, metastatic disease negates this survival difference and is characterized by poor prognosis. The available clinical investigations supporting the guidelines for treatment of metastatic RCC are predominantly based on clear cell RCC studies...
February 2016: Journal of Immunotherapy
https://read.qxmd.com/read/25168556/use-of-a-polytetrafluoroethylene-gore-tex-bolster-to-close-the-renal-parenchymal-defect-during-open-partial-nephrectomy
#33
JOURNAL ARTICLE
Jeffrey D Redshaw, Jeremy M West, Robert A Stephenson, William T Lowrance, Blake D Hamilton, Andrew W Southwick, Christopher B Dechet
INTRODUCTION: Numerous surgical techniques have been described to facilitate closure of the renal parenchymal defect. We sought to describe the operative technique and define the safety and efficacy of using an expanded polytetrafluoroethylene (GORE-TEX; WL Gore and Associates, Flagstaff, AZ) bolster to aid in closure of the renal parenchymal defect at the time of open partial nephrectomy (OPN). TECHNICAL CONSIDERATIONS: A retrospective review of 175 patients who underwent an OPN using an expanded polytetrafluoroethylene (ePTFE) bolster at the Huntsman Cancer Hospital, University of Utah and Salt Lake City Veterans Affairs Medical Center from March 2005 to February 2013 was conducted...
September 2014: Urology
https://read.qxmd.com/read/25139069/the-charlson-comorbidity-index-predicts-survival-after-disease-recurrence-in-patients-following-radical-cystectomy-for-urothelial-carcinoma-of-the-bladder
#34
JOURNAL ARTICLE
Roman Mayr, Matthias May, Maximilian Burger, Thomas Martini, Armin Pycha, Christopher Dechet, Michele Lodde, Evi Comploj, Wolf F Wieland, Stefan Denzinger, Wolfgang Otto, Atiqullah Aziz, Hans-Martin Fritsche, Michael Gierth
OBJECTIVE: To identify prognostic clinical and histopathological parameters, including comorbidity indices at the time of radical cystectomy (RC), for overall survival (OS) after recurrence following RC for urothelial carcinoma of the bladder (UCB). MATERIALS AND METHODS: A retrospective multicenter study was carried out in 555 unselected consecutive patients who underwent RC with pelvic lymph node dissection for UCB from 2000 to 2010. A total of 227 patients with recurrence comprised our study group...
2014: Urologia Internationalis
https://read.qxmd.com/read/25138778/preoperative-c-reactive-protein-in-the-serum-a-prognostic-biomarker-for-upper-urinary-tract-urothelial-carcinoma-treated-with-radical-nephroureterectomy
#35
MULTICENTER STUDY
Atiqullah Aziz, Michael Rink, Georgios Gakis, Luis A Kluth, Christopher Dechet, Florian Miller, Wolfgang Otto, Michael Gierth, Stefan Denzinger, Christian Schwentner, Arnulf Stenzl, Margit Fisch, Maximilian Burger, Hans-Martin Fritsche
OBJECTIVE: To investigate the impact of preoperative serum C-reactive protein (CRP) on clinicopathological features and prognosis in patients with upper tract urothelial cancer (UTUC) after radical nephroureterectomy (RNU). PATIENTS AND METHODS: Data of 265 patients from three German centers who underwent RNU for UTUC without neoadjuvant chemotherapy between 1990 and 2012 were evaluated. Mean follow-up was 37 months (interquartile range 9-48). CRP was analyzed as a categorical and continuous variable for the prediction of recurrence-free survival (RFS), disease-specific survival (DSS) and all-cause survival (ACS) using uni- and multivariate Cox regression analyses...
2014: Urologia Internationalis
https://read.qxmd.com/read/25076040/outbreaks-caused-by-sprouts-united-states-1998-2010-lessons-learned-and-solutions-needed
#36
JOURNAL ARTICLE
Amy M Dechet, Karen M Herman, Cary Chen Parker, Peter Taormina, Joy Johanson, Robert V Tauxe, Barbara E Mahon
After a series of outbreaks associated with sprouts in the mid-1990s, the U.S. Food and Drug Administration (FDA) published guidelines in 1999 for sprouts producers to reduce the risk of contamination. The recommendations included treating seeds with an antimicrobial agent such as calcium hypochlorite solution and testing spent irrigation water for pathogens. From 1998 through 2010, 33 outbreaks from seed and bean sprouts were documented in the United States, affecting 1330 reported persons. Twenty-eight outbreaks were caused by Salmonella, four by Shiga toxin-producing Escherichia coli, and one by Listeria...
August 2014: Foodborne Pathogens and Disease
https://read.qxmd.com/read/24969739/comparison-of-complications-from-radical-cystectomy-between-old-old-versus-oldest-old-patients
#37
MULTICENTER STUDY
Evi Comploj, Jeremy West, Michael Mian, Luis Alex Kluth, Alexander Karl, Christopher Dechet, Shahrokh F Shariat, Christian G Stief, Emanuela Trenti, Salvatore Palermo, Michele Lodde, Wolfgang Horninger, Stephan Madersbacher, Armin Pycha
INTRODUCTION: The purpose of this study was to evaluate and compare complications after radical cystectomy in patients aged ≥75 years. MATERIALS AND METHODS: 251 patients aged 75-95 years (median 79) underwent radical cystectomy between 2000 and 2012 at four institutions. The patients were divided into two groups: ≥75-84 years of age (group 1) versus ≥85 years of age (group 2). Comorbidities, body mass index, and complications were obtained retrospectively, except at the Central Hospital of Bolzano and Weill Cornell Medical Center, which collected data prospectively...
2015: Urologia Internationalis
https://read.qxmd.com/read/24922674/long-term-follow-up-of-intermediate-risk-non-muscle-invasive-bladder-cancer-sub-classified-by-multi-coloured-fish
#38
JOURNAL ARTICLE
Christine Mian, Evi Comploj, Elisabeth Resnyak, Emanuela Trenti, Salvatore Palermo, Michele Lodde, Alexander Pycha, Andrea Ambrosini-Spaltro, Christopher B Dechet, Armin Pycha
AIM: To examine the long-term follow-up of patients with that previously underwent risk stratification based on multicolour FISH testing. PATIENTS AND METHODS: On 81 patients with intermediate-risk urothelial carcinoma, a multicolour-FISH was performed. Patients were sub-divided into low- and high-risk groups based on chromosomal patterns. Univariate analysis, using Mantel-Cox log-rank test for disease-free, progression-free survival and overall survival, was employed to determine the prognostic significance of FISH analysis...
June 2014: Anticancer Research
https://read.qxmd.com/read/24895114/concomitant-seminal-vesicle-invasion-in-pt4a-urothelial-carcinoma-of-the-bladder-with-contiguous-prostatic-infiltration-is-an-adverse-prognosticator-for-cancer-specific-survival-after-radical-cystectomy
#39
COMPARATIVE STUDY
Matthias May, Sabine Brookman-May, Maximilian Burger, Christian Gilfrich, Hans-Martin Fritsche, Michael Rink, Felix Chun, Margit Fisch, Florian Roghmann, Joachim Noldus, Roman Mayr, Armin Pycha, Vladimir Novotny, Manfred Wirth, Stefan Vallo, Axel Haferkamp, Jan Roigas, Antonin Brisuda, Regina Stredele, Björn Volkmer, Christopher Dechet, Marco Schnabel, Stefan Denzinger, Christian G Stief, Patrick J Bastian, Atiqullah Aziz
PURPOSE: To evaluate the prognostic value of concomitant seminal vesicle invasion (cSVI) in patients with urothelial carcinoma of the bladder (UCB) and contiguous prostatic stromal infiltration in a large cystectomy series. METHODS: A total of 385 patients with UCB and contiguous prostatic infiltration comprised our study. Patients were divided in two groups according to cSVI. Median follow-up was 36 months (interquartile range 11-74); the primary end point was cancer-specific mortality...
November 2014: Annals of Surgical Oncology
https://read.qxmd.com/read/24817140/prognostic-impact-of-infiltration-of-the-vagina-and-or-uterus-in-women-undergoing-anterior-pelvic-exenteration-for-urothelial-carcinoma-of-the-bladder-results-of-a-contemporary-multicentre-series
#40
MULTICENTER STUDY
Matthias May, Atiqullah Aziz, Sabine Brookman-May, Florian Roghmann, Joachim Noldus, Michael Rink, Felix Chun, Margit Fisch, Vladimir Novotny, Manfred Wirth, Roman Mayr, Armin Pycha, Antonin Brisuda, Björn Volkmer, Regina Stredele, Christopher Dechet, Stefan Vallo, Axel Haferkamp, Marco Schnabel, Stefan Denzinger, Jan Roigas, Christian G Stief, Christian Gilfrich, Patrick J Bastian, Jörg B Engel, Maximilian Burger, Hans-Martin Fritsche
PURPOSE: To evaluate for the first time the prognostic significance of female invasive patterns in stage pT4a urothelial carcinoma of the bladder in a large series of women undergoing anterior pelvic exenteration. PATIENTS AND METHODS: Our series comprised of 92 female patients in total of whom 87 with known invasion patterns were eligible for final analysis. Median follow-up for evaluation of cancer-specific mortality (CSM) was 38 months (interquartile ranges, 21-82 months)...
March 2015: World Journal of Urology
keyword
keyword
26791
2
3
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.