scholarly journals Influence of Site Conditions and Quality of Birch Wood on Its Properties and Utilization after Heat Treatment. Part II—Surface Properties and Marketing Evaluation of the Effect of the Treatment on Final Usage of Such Wood

Forests ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 556 ◽  
Author(s):  
Roman Dudík ◽  
Vlastimil Borůvka ◽  
Aleš Zeidler ◽  
Tomáš Holeček ◽  
Marcel Riedl
Keyword(s):  
Heat Treatment ◽  
Surface Properties ◽  
Birch Wood ◽  
The Czech Republic ◽  
Suitable Heat Treatment ◽  
Heat Treated ◽  
Marketing Analysis ◽  
The Impact

This work is a follow-up contribution to the characteristics of Betula pendula (silver birch) wood from different habitats and the impact of the subsequent heat treatment. Specifically, it focuses on the surface properties of birch wood in the form of veneers, namely color, hardness, roughness and wetting, and in particular on the marketing evaluation of the attractiveness of colored birch wood and, thus, its possible use in practice in the Czech Republic. Three heat treatment steps at 170, 190 and 200 °C were used. The resulting values of the properties of the treated birch veneers were compared with the untreated reference veneers and also with beech veneers. These properties were the wood density, the colorimetric parameters, the roughness parameters, the wetting parameters, the hardness and density, and none of the parameters studied showed negative changes due to the temperature adjustment. Overall, both in terms of properties and in terms of marketing appraisal, there is the potential for birch to replace, for example, beech, especially in the furniture industry, by application in the form of heat-treated veneers after suitable heat treatment. The conclusions of the marketing analysis resulting from the questionnaire survey conducted on a sample of respondents show the significant preference for the heat-treated birch wood compared to reference birch samples without heat treatment.

The effect of surgery in tenosynovial giant cell tumours as measured by patient-reported outcomes on quality of life and joint function

2019 ◽  
Vol 101-B (3) ◽  
pp. 272-280 ◽  
Author(s):  
F. G. M. Verspoor ◽  
M. J. L. Mastboom ◽  
G. Hannink ◽  
W. T. A. van der Graaf ◽  
M. A. J. van de Sande ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Giant Cell ◽  
Diffuse Type ◽  
Joint Function ◽  
Population Means ◽  
Sf 36 ◽  
Patient Reported ◽  
The Impact

Aims The aim of this study was to evaluate health-related quality of life (HRQoL) and joint function in tenosynovial giant cell tumour (TGCT) patients before and after surgical treatment. Patients and Methods This prospective cohort study run in two Dutch referral centres assessed patient-reported outcome measures (PROMs; 36-Item Short-Form Health Survey (SF-36), visual analogue scale (VAS) for pain, and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)) in 359 consecutive patients with localized- and diffuse-type TGCT of large joints. Patients with recurrent disease (n = 121) and a wait-and-see policy (n = 32) were excluded. Collected data were analyzed at specified time intervals preoperatively (baseline) and/or postoperatively up to five years. Results A total of 206 TGCT patients, 108 localized- and 98 diffuse-type, were analyzed. Median age at diagnosis of localized- and diffuse-type was 41 years (interquartile range (IQR) 29 to 49) and 37 years (IQR 27 to 47), respectively. SF-36 analyses showed statistically significant and clinically relevant deteriorated preoperative and immediate postoperative scores compared with general Dutch population means, depending on subscale and TGCT subtype. After three to six months of follow-up, these scores improved to general population means and continued to be fairly stable over the following years. VAS scores, for both subtypes, showed no statistically significant or clinically relevant differences pre- or postoperatively. In diffuse-type patients, the improvement in median WOMAC score was statistically significant and clinically relevant preoperatively versus six to 24 months postoperatively, and remained up to five years’ follow-up. Conclusion Patients with TGCT report a better HRQoL and joint function after surgery. Pain scores, which vary hugely between patients and in patients over time, did not improve. A disease-specific PROM would help to decipher the impact of TGCT on patients’ daily life and functioning in more detail. Cite this article: Bone Joint J 2019;101-B:272–280.

scholarly journals Effect of Heat Treatment by the Sous-Vide Method on the Quality of Poultry Meat

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1610
Author(s):  
Wiesław Przybylski ◽  
Danuta Jaworska ◽  
Katarzyna Kajak-Siemaszko ◽  
Piotr Sałek ◽  
Kacper Pakuła
Keyword(s):  
Heat Treatment ◽  
Sensory Quality ◽  
Treatment Method ◽  
Poultry Meat ◽  
Chicken Breast ◽  
Breast Meat ◽  
Sous Vide ◽  
The Impact ◽  
Cooked Meat

An increase in the consumption of poultry meat has been observed due to its availability, nutritional value, and delicate flavor. These characteristics make it possible to prepare, with the use of spices and other additives, many different dishes and products for increasingly demanding consumers. The sous-vide technique is increasingly being used to give new sensory attributes to dishes in gastronomy. The study aimed to assess the impact of the heat treatment method, i.e., the sous-vide method, as compared to traditional cooking, on the sensory quality of poultry meat, as well as the efficiency of the process with regard to technological quality. The cooking yield with the sous-vide method of processing poultry meat was higher than with the traditional method of cooking in water (88.5% vs. 71.0%, respectively). The meat was also found to be redder (a* = 254 vs. 074) and less yellow (b* = 1512 vs. 1649), as well as more tender. The sensory quality of chicken breast meat obtained by the sous-vide method was higher in terms of attributes such as color tone, tenderness, juiciness, and overall quality. At the same time, it was lower in terms of the odor of cooked meat and the flavor of cooked meat as compared to meat subjected to traditional cooking.

scholarly journals Impact of Diabetes Mellitus on Cervical Spine Surgery for Ossification of the Posterior Longitudinal Ligament

2021 ◽  
Vol 10 (15) ◽  
pp. 3375
Author(s):  
Atsushi Kimura ◽  
Katsushi Takeshita ◽  
Toshitaka Yoshii ◽  
Satoru Egawa ◽  
Takashi Hirai ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Cervical Spine ◽  
Postoperative Complications ◽  
Spine Surgery ◽  
Posterior Longitudinal Ligament ◽  
Lower Extremity Function ◽  
Cervical Spine Surgery ◽  
The Impact

Ossification of the posterior longitudinal ligament (OPLL) is commonly associated with diabetes mellitus (DM); however, the impact of DM on cervical spine surgery for OPLL remains unclear. This study was performed to evaluate the influence of diabetes DM on the outcomes following cervical spine surgery for OPLL. In total, 478 patients with cervical OPLL who underwent surgical treatment were prospectively recruited from April 2015 to July 2017. Functional measurements were conducted at baseline and at 6 months, 1 year, and 2 years after surgery using JOA and JOACMEQ scores. The incidence of postoperative complications was categorized into early (≤30 days) and late (>30 days), depending on the time from surgery. From the initial group of 478 patients, 402 completed the 2-year follow-up and were included in the analysis. Of the 402 patients, 127 (32%) had DM as a comorbid disease. The overall incidence of postoperative complications was significantly higher in patients with DM than in patients without DM in both the early and late postoperative periods. The patients with DM had a significantly lower JOA score and JOACMEQ scores in the domains of lower extremity function and quality of life than those without DM at the 2-year follow-up.

scholarly journals The effect of heat treatment and impact angle on the erosion behavior of nickel-tungsten carbide cold spray coating using response surface methodology

2021 ◽  
Author(s):  
Marios Kazasidis ◽  
Elisa Verna ◽  
Shuo Yin ◽  
Rocco Lupoi
Keyword(s):  
Heat Treatment ◽  
Response Surface Methodology ◽  
Mass Loss ◽  
Tungsten Carbide ◽  
Response Surface ◽  
Spray Coating ◽  
Impact Angle ◽  
Control Factors ◽  
Heat Treated ◽  
The Impact

AbstractThis study elucidates the performance of cold-sprayed tungsten carbide-nickel coating against solid particle impingement erosion using alumina (corundum) particles. After the coating fabrication, part of the specimens followed two different annealing heat treatment cycles with peak temperatures of 600 °C and 800 °C. The coatings were examined in terms of microstructure in the as-sprayed (AS) and the two heat-treated conditions (HT1, HT2). Subsequently, the erosion tests were carried out using design of experiments with two control factors and two replicate measurements in each case. The effect of the heat treatment on the mass loss of the coatings was investigated at the three levels (AS, HT1, HT2), as well as the impact angle of the erodents (30°, 60°, 90°). Finally, the response surface methodology (RSM) was applied to analyze and optimize the results, building the mathematical models that relate the significant variables and their interactions to the output response (mass loss) for each coating condition. The obtained results demonstrated that erosion minimization was achieved when the coating was heat treated at 600 °C and the angle was 90°.

scholarly journals P181 Long-term improvement in axial spondyloarthritis clinical outcomes following 2-weeks of intensive education and rehabilitation: results from the Bath residential rehabilitation programme

Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_1) ◽  
Author(s):  
Rosie Barnett ◽  
Anita McGrogan ◽  
Matthew Young ◽  
Charlotte Cavill ◽  
Mandy Freeth ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Disease Activity ◽  
Axial Spondyloarthritis ◽  
Rehabilitation Programme ◽  
Spinal Mobility ◽  
The Impact

Abstract Background/Aims  Axial spondyloarthritis (axSpA) is a chronic rheumatic condition, characterised by inflammatory back pain - often associated with impaired function and mobility, sleep disturbance, fatigue, and reduced quality of life. Despite the vast advances in pharmacological treatments for axSpA over the last few decades, physical activity and rehabilitation remain vital for effective disease management. At the Royal National Hospital for Rheumatic Diseases in Bath (RNHRD), the 2-week inpatient axSpA rehabilitation programme has been integral to axSpA care since the 1970’s. Prior research has demonstrated significant short-term improvements in spinal mobility (BASMI), function (BASFI) and disease activity (BASDAI) following course attendance. However, the long-term outcomes are yet to be evaluated in this unique cohort. Methods  Since the early 1990’s, clinical measures of spinal mobility, function and disease activity have been routinely collected at the RNHRD at all clinical appointments through administration of the BASMI, BASFI and BASDAI, respectively. Dates of attending the axSpA course and standard clinical and treatment follow-up data were also collected. Multiple linear regression models were used to investigate the impact of course attendance on final reported BASMI, BASDAI and BASFI scores (final score=most recent). Length of follow-up was defined as time between first and last recorded BASMI. Results  Of the 203 patients within the Bath SPARC200 cohort, 77.8% (158/203) had attended at least one rehabilitation course throughout follow-up. 70.0% (140/203) of patients were male. The mean duration of follow-up was 13.5 years (range 0-35 years); 28.1% (57/203) of individuals with 20+ years of follow-up. Course attendance (yes versus no) significantly reduced final BASMI score by 0.84 (p = 0.001, 95%CI -1.31 to -0.37) and final BASDAI score by 0.74 (p = 0.018, 95%CI -1.34 to -0.13). Although course attendance reduced final BASFI by 0.45 (95%CI -1.17 to 0.28), this relationship did not reach significance (p = 0.225). Whilst minimally clinically important difference (MCID) is, to our knowledge, yet to be defined for BASMI, MCIDs were achieved long-term for both BASDAI and BASFI - defined by van der Heijde and colleagues in 2016 as 0.7 and 0.4 for BASDAI and BASFI, respectively. Conclusion  These results provide novel evidence to support the integral role of education, physical activity and rehabilitation in the management of axSpA. Future work should investigate additional outcomes of critical importance to patients and clinicians, such as fatigue, quality of life and work productivity. Furthermore, a greater understanding of the factors that confound these outcomes may provide insights into those patients who may most benefit from attending a 2-week rehabilitation course. In addition to facilitating identification of those patients who may require additional clinical support. Disclosure  R. Barnett: None. A. McGrogan: None. M. Young: None. C. Cavill: None. M. Freeth: None. R. Sengupta: Honoraria; Biogen, Celgene, AbbVie, Novartis, MSD. Grants/research support; Novartis, UCB.

Psychiatric and psychosocial morbidity 1 year after epilepsy surgery

2020 ◽  
pp. 1-8
Author(s):  
S. Patel ◽  
M. Clancy ◽  
H. Barry ◽  
N. Quigley ◽  
M. Clarke ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Surgical Treatment ◽  
Epilepsy Surgery ◽  
Refractory Epilepsy ◽  
Post Surgery ◽  
Axis I ◽  
Patients With Epilepsy ◽  
The Impact

Abstract Objectives: There is a high rate of psychiatric comorbidity in patients with epilepsy. However, the impact of surgical treatment of refractory epilepsy on psychopathology remains under investigation. We aimed to examine the impact of epilepsy surgery on psychopathology and quality of life at 1-year post-surgery in a population of patients with epilepsy refractory to medication. Methods: This study initially assessed 48 patients with refractory epilepsy using the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I), the Hospital Anxiety and Depression Scale (HADS) and the Quality of Life in Epilepsy Inventory 89 (QOLIE-89) on admission to an Epilepsy Monitoring Unit (EMU) as part of their pre-surgical assessment. These patients were again assessed using the SCID-I, QOLIE-89 and HADS at 1-year follow-up post-surgery. Results: There was a significant reduction in psychopathology, particularly psychosis, following surgery at 1-year follow-up (p < 0.021). There were no new cases of de novo psychosis and surgery was also associated with a significant improvement in the quality of life scores (p < 0.001). Conclusions: This study demonstrates the impact of epilepsy surgery on psychopathology and quality of life in a patient population with refractory surgery. The presence of a psychiatric illness should not be a barrier to access surgical treatment.

scholarly journals The course of peripheral neuropathy and its association with health-related quality of life among colorectal cancer patients

2020 ◽  
Author(s):  
Cynthia S. Bonhof ◽  
Lonneke V. van de Poll-Franse ◽  
Dareczka K. Wasowicz ◽  
Laurens V. Beerepoot ◽  
Gerard Vreugdenhil ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Colorectal Cancer ◽  
Peripheral Neuropathy ◽  
Health Related Quality ◽  
Related Quality ◽  
Health Related ◽  
Eortc Qlq ◽  
The Impact

Abstract Purpose To gain more insight into the course of chemotherapy-induced peripheral neuropathy (CIPN) and its impact on health-related quality of life (HRQoL) in a population-based sample of colorectal cancer (CRC) patients up to 2 years after diagnosis. Methods All newly diagnosed CRC patients from four hospitals in the Netherlands were eligible for participation in an ongoing prospective cohort study. Patients (n = 340) completed questions on CIPN (EORTC QLQ-CIPN20) and HRQoL (EORTC QLQ-C30) before initial treatment (baseline) and 1 and 2 years after diagnosis. Results Among chemotherapy-treated patients (n = 105), a high sensory peripheral neuropathy (SPN) level was reported by 57% of patients at 1 year, and 47% at 2-year follow-up, whereas a high motor peripheral neuropathy (MPN) level was reported by 47% and 28%, at years 1 and 2, respectively. Linear mixed model analyses showed that SPN and MPN symptoms significantly increased from baseline to 1-year follow-up and did not return to baseline level after 2 years. Patients with a high SPN or MPN level reported a worse global quality of life and a worse physical, role, emotional, cognitive, and social functioning compared with those with a low SPN or MPN level. Conclusions Future studies should focus on understanding the mechanisms underlying CIPN so targeted interventions can be developed to reduce the impact of CIPN on patient’s lives. Implications for cancer survivors Patients need to be informed of both CIPN and the impact on HRQoL.

Effect of Cooling Rate on Microstructure and Properties of Heat-Treated Fe3Al Intermetallics

2011 ◽  
Vol 189-193 ◽  
pp. 3891-3894
Author(s):  
Ya Min Li ◽  
Hong Jun Liu ◽  
Yuan Hao
Keyword(s):  
Heat Treatment ◽  
Cooling Rate ◽  
Lattice Distortion ◽  
Annealing Furnace ◽  
Microstructure And Properties ◽  
Homogenizing Annealing ◽  
Heat Treated ◽  
Mixed Fracture ◽  
Sand Mould ◽  
The Impact

The casting Fe3Al intermetallics were solidified in sodium silicate sand mould and permanent mould respectively to get different cooling rates. After heat treatment (1000°С/15 h homogenizing annealing + furnace cooling followed by 600°С/1 h tempering + oil quenching), the microstructure and properties of Fe3Al intermetallics were investigated. The results show that the heat-treated Fe3Al intermetallics at higher cooling rate has finer grained microstructure than lower cooling rate, and the lattice distortion increases due to the higher solid solubility of the elements Cr and B at higher cooling rate. The tensile strength and hardness of the Fe3Al intermetallics at higher cooling rate are slightly higher also. However, the impact power of intermetallics at higher cooling rate is 67.5% higher than that at lower cooling rate, and the impact fracture mode is also transformed from intercrystalline fracture at lower cooling rate to intercrystallin+transcrystalline mixed fracture at higher cooling rate.

Application of Tailored Heat Treated Blanks under Quasi Series Conditions

2007 ◽  
Vol 344 ◽  
pp. 383-390 ◽  
Author(s):  
Marion Merklein ◽  
Uwe Vogt
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Local Heat ◽  
Strength Distribution ◽  
Process Window ◽  
Short Term ◽  
Forming Process ◽  
Heat Treated ◽  
Set Up ◽  
The Impact

Tailored Heat Treated Blanks (THTB) are blanks that exhibit locally different strength specifically optimized for the succeeding forming process. The strength distribution is set by a local, short-term heat treatment modifying the mechanical properties of the material. Hence, THTB allow enhancing forming limits significantly leading to shorter and more robust manufacture process chains. In order to qualify the use of THTB under quasi series conditions, the interdependencies of the blank’s local heat treatment and the entire process chain of the car body manufacture have to be analyzed. In this respect, the impact of a short-term heat treatment on the mechanical properties of AA6181PX, a commonly used aluminum alloy in today’s car bodies, was studied. Also the influence of a short-term heat treatment on the coil lubricant, usually already applied by the material supplier, was given a closer look. Based on these experiments process restrictions for the application of THTB in an industrial automotive environment were derived and a process window for the THTB design was set up. In conclusion, strategies were defined how to enhance the found process boundaries leading to a more robust process window.

scholarly journals Evaluation of the quality of life of patients with oral cancer in Brazil

2006 ◽  
Vol 20 (4) ◽  
pp. 290-296 ◽  
Author(s):  
Fabiana Paula de Andrade ◽  
José Leopoldo Ferreira Antunes ◽  
Marcelo Doria Durazzo
Keyword(s):  
Quality Of Life ◽  
Oral Cancer ◽  
Clinical Characteristics ◽  
Posterior Part ◽  
Self Report ◽  
Life Questionnaire ◽  
Longitudinal Assessment ◽  
The Impact

This study performed a field trial of a Portuguese version of the University of Washington quality of life questionnaire (UW-QOL, 3rd version), aiming at appraising its ability to identify different patterns of health-related quality of life of patients with oral cancer in Brazil. Patients (N = 100) were interviewed as they were undergoing treatment for oral squamous cell carcinoma at a large Brazilian hospital ("Hospital das Clínicas", School of Medicine, University of São Paulo). The results were compared based on categories of socio-demographic and clinical characteristics of the patients. At a one-year follow-up, 20 patients had died, and 24 were considered dropouts. The remaining patients accounted for the longitudinal assessment of modifications in the self report of quality of life. Patients with larger tumours and neoplasms in the posterior part of the mouth presented significantly (p < 0.05) poorer indications of quality of life. Chewing was the poorest rated domain (35.0/100.0), and presented the highest proportion of complaints both at the baseline and at the follow-up assessments. The questionnaire allowed the identification of important contrasts (while comparing clinical characteristics) and similarities (while comparing socio-demographic status) among subsets of respondents, and it can contribute to reduce the impact of treatments and improve subsequent patient management.

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