Journal articles: 'Mattress Factory'

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Mohan, M., S. Kagen, and R. Muthiah. "Mattress Lung: Acrylonitrile-induced Asthma in a Mattress Factory Worker." Journal of Allergy and Clinical Immunology 117, no. 2 (February 2006): S98. http://dx.doi.org/10.1016/j.jaci.2005.12.394.

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Grenier, Lotus. "On Memory: Deborah Aschheim at the Mattress Factory." TEXTILE 5, no. 3 (December 2007): 328–31. http://dx.doi.org/10.2752/175183507x249495.

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Giannini, Claudia, and Michael Olijnyk. "Installations by Asian Artists in Residenceat the Mattress Factory: An Interview with Michael Olijnyk." Art Journal 59, no. 3 (September 2000): 86–95. http://dx.doi.org/10.1080/00043249.2000.10792017.

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Olijnyk, Michael, and Claudia Giannini. "Installations by Asian Artists in Residence at the Mattress Factory: An Interview with Michael Olijnyk." Art Journal 59, no. 3 (2000): 86. http://dx.doi.org/10.2307/778030.

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Bogomolov, Elizabeth, and Julie A. Wiebusch. "Assessing the origin of tonal sound emanating from refrigerant piping in the historic Mattress Factory project at the University of Washington Tacoma Campus." Journal of the Acoustical Society of America 125, no. 4 (April 2009): 2494. http://dx.doi.org/10.1121/1.4783330.

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Chao, Yao, Li Ming Shen, and Ming Peng Liu. "Mechanical characteristic and analytical model of novel air spring for ergonomic mattress." Mechanics & Industry 22 (2021): 37. http://dx.doi.org/10.1051/meca/2021035.

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Conventional mattresses can not adjust precisely according to the individualized spinal alignment. In addition, there is no theoretical basis for quantitative design and adjustment of mattresses firmness. The purpose of this paper is to overcome deficiency of traditional air chambers for research of ergonomic mattresses in accordance with spinal alignment. A novel variable stiffness air spring was designed and static experiments were conducted to analyze its mechanical properties and its influence factors. An analytical model based on geometric parameters and initial internal pressure was established. The results showed that the air spring has nonlinear stiffness during the working process. Furthermore, the model can predict the load of the air spring accurately at any equilibrium position with an average error of 6.96%. The initial stiffness, volume and assembly height could be predicted by means of geometric parameters and initial internal pressure. The conclusions are that the novel air spring can obtain predictable stiffness compared with cubic and the rod-shaped air chambers, which provides a theoretical basis and possible solution for the study of stiffness adaptive ergonomic mattress according to spinal alignment.

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Kumar, Sanjeev, Anil Kumar Sahu, and Sanjeev Naval. "Performance of Circular Footing on Expansive Soil Bed Reinforced with Geocells of Chevron Pattern." Civil Engineering Journal 5, no. 11 (November 3, 2019): 2333–48. http://dx.doi.org/10.28991/cej-2019-03091415.

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Results from laboratory model tests performed on circular footing are presented in this paper to understand the performance of geocell reinforced expansive soil. Naturally occurring expansive soil was used in this study as subsoil. Geocells of chevron pattern fabricated from geotextile made up of polypropylene were used to reinforce the soil bed. The parameters studied in this testing program were the placement depth of the geocell mattress, pocket size of geocell and the height of geocell mattress. Contrary to other researchers; the improvement in the performance of reinforced bed is evaluated at a settlement level equal to the failure settlement of unreinforced soil bed. The performance of reinforced bed is evaluated through two non-dimensional factors viz. bearing capacity improvement factor (If) and settlement reduction factor (PRS%). Test results indicated that with the introduction of geocell as reinforcement, a substantial improvement in bearing capacity and decrease in footing settlement can be achieved. Bearing capacity of reinforced bed increases by more than 200% and 81% reduction in footing settlement was achieved by using geocell mattress of optimal dimensions and placing it just below the footing base.

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Kotowski, Susan E., Kermit G. Davis, Neal Wiggermann, and Rachel Williamson. "Quantification of Patient Migration in Bed." Human Factors: The Journal of the Human Factors and Ergonomics Society 55, no. 1 (January 18, 2013): 36–47. http://dx.doi.org/10.1177/0018720812474300.

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Objective: The study objective was to quantify the movement of hospital bed occupants relative to the bed in typical bed articulations. Background: Movement of a patient in bed results in two common adverse events: (a) increase in shear and friction forces between the patient and bed, which are extrinsic pressure ulcer risk factors, and (b) musculoskeletal injuries to nurses, resulting from repositioning patients who have migrated down in bed. Method: The study involved 12 participants who lay supine in three hospital beds, which were articulated to common positions. Body movement relative to the bed was quantified with the use of motion capture. Cumulative movement, net displacement, and torso compression (shoulder to trochanter distance) were calculated for different bed types and bed movements. Results: Bed design and bed movement had a significant effect on most of the dependent variables. Bed design (e.g., type) influenced cumulative movement by up to 115%, net displacement by up to 70%, and torso compression by about 20%. Bed movement (e.g., knee elevation) reduced cumulative migration by up to 35%. Conclusion: The quantification of patient migration provides a metric for evaluating the interaction between body and bed surfaces. Overall, the measures were sensitive to design changes in bed frames, bed articulations, and mattress inflation. Application: Documentation of the cumulative movement, net displacement, and torso compression provides hospital bed designers quantifiable measures for reducing migration and potentially shear and friction forces when designing bed frames, bed articulations, and mattresses. Optimization of these metrics may ultimately have an impact on patient and caregiver health.

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Chen, C. M., A. Mielck, B. Fahlbusch, W. Bischof, O. Herbarth, M. Borte, H. E. Wichmann, and J. Heinrich. "Social factors, allergen, endotoxin, and dust mass in mattress." Indoor Air 17, no. 5 (October 2007): 384–93. http://dx.doi.org/10.1111/j.1600-0668.2007.00486.x.

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Chen, C. M., B. Fahlbusch, W. Bischof, O. Herbarth, M. Borte, W. H. -Erich, and J. Heinrich. "Social Factors and Indoor Biocontaminants and Dust on Mattress." Epidemiology 17, Suppl (November 2006): S384. http://dx.doi.org/10.1097/00001648-200611001-01022.

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Nixon, Jane, Sarah Brown, Isabelle L. Smith, Elizabeth McGinnis, Armando Vargas-Palacios, E. Andrea Nelson, Julia Brown, et al. "Comparing alternating pressure mattresses and high-specification foam mattresses to prevent pressure ulcers in high-risk patients: the PRESSURE 2 RCT." Health Technology Assessment 23, no. 52 (September 2019): 1–176. http://dx.doi.org/10.3310/hta23520.

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Background Pressure ulcers (PUs) are a burden to patients, carers and health-care providers. Specialist mattresses minimise the intensity and duration of pressure on vulnerable skin sites in at-risk patients. Primary objective Time to developing a new PU of category ≥ 2 in patients using an alternating pressure mattress (APM) compared with a high-specification foam mattress (HSFM). Design A multicentre, Phase III, open, prospective, planned as an adaptive double-triangular group sequential, parallel-group, randomised controlled trial with an a priori sample size of 2954 participants. Randomisation used minimisation (incorporating a random element). Setting The trial was set in 42 secondary and community inpatient facilities in the UK. Participants Adult inpatients with evidence of acute illness and at a high risk of PU development. Interventions and follow-up APM or HSFM – the treatment phase lasted a maximum of 60 days; the final 30 days were post-treatment follow-up. Main outcome measures Time to event. Results From August 2013 to November 2016, 2029 participants were randomised to receive either APM (n = 1016) or HSFM (n = 1013). Primary end point – 30-day final follow-up: of the 2029 participants in the intention-to-treat population, 160 (7.9%) developed a new PU of category ≥ 2. There was insufficient evidence of a difference between groups for time to new PU of category ≥ 2 [Fine and Gray model HR 0.76, 95% confidence interval (CI) 0.56 to 1.04; exact p-value of 0.0890 and 2% absolute difference]. Treatment phase sensitivity analysis: 132 (6.5%) participants developed a new PU of category ≥ 2 between randomisation and end of treatment phase. There was a statistically significant difference in the treatment phase time-to-event sensitivity analysis (Fine and Gray model HR 0.66, 95% CI 0.46 to 0.93; p = 0.0176 and 2.6% absolute difference). Secondary end points – 30-day final follow-up: new PUs of category ≥ 1 developed in 350 (17.2%) participants, with no evidence of a difference between mattress groups in time to PU development, (Fine and Gray model HR 0.83, 95% CI 0.67 to 1.02; p-value = 0.0733 and absolute difference 3.1%). New PUs of category ≥ 3 developed in 32 (1.6%) participants with insufficient evidence of a difference between mattress groups in time to PU development (Fine and Gray model HR 0.81, 95% CI 0.40 to 1.62; p = 0.5530 and absolute difference 0.4%). Of the 145 pre-existing PUs of category 2, 89 (61.4%) healed – there was insufficient evidence of a difference in time to healing (Fine and Gray model HR 1.12, 95% CI 0.74 to 1.68; p = 0.6122 and absolute difference 2.9%). Health economics – the within-trial and long-term analysis showed APM to be cost-effective compared with HSFM; however, the difference in costs models are small and the quality-adjusted life-year gains are very small. There were no safety concerns. Blinded photography substudy – the reliability of central blinded review compared with clinical assessment for PUs of category ≥ 2 was ‘very good’ (kappa statistic 0.82, prevalence- and bias-adjusted kappa 0.82). Quality-of-life substudy – the Pressure Ulcer Quality of Life – Prevention (PU-QoL-P) instrument meets the established criteria for reliability, construct validity and responsiveness. Limitations A lower than anticipated event rate. Conclusions In acutely ill inpatients who are bedfast/chairfast and/or have a category 1 PU and/or localised skin pain, APMs confer a small treatment phase benefit that is diminished over time. Overall, the APM patient compliance, very low PU incidence rate observed and small differences between mattresses indicate the need for improved indicators for targeting of APMs and individualised decision-making. Decisions should take into account skin status, patient preferences (movement ability and rehabilitation needs) and the presence of factors that may be potentially modifiable through APM allocation, including being completely immobile, having nutritional deficits, lacking capacity and/or having altered skin/category 1 PU. Future work Explore the relationship between mental capacity, levels of independent movement, repositioning and PU development. Explore ‘what works for whom and in what circumstances’. Trial registration Current Controlled Trials ISRCTN01151335. Funding This project was funded by the National Institute for Health Research Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 23, No. 52. See the NIHR Journals Library website for further project information.

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S., Shridevi A., Madhusoodana R. Bhovi, Prema Prabhudeva, Renuka ., and Camelia Maitra. "Which is better for pfannensteil skin incision closure in caesarean section? Interrupted mattress suture or continuous subcuticular suture." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 9, no. 9 (August 27, 2020): 3711. http://dx.doi.org/10.18203/2320-1770.ijrcog20203844.

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Background: Caesarean delivery is one of the most commonly performed operations in obstetrics. Postoperative comfort of the woman largely depends on the method of skin closure. Wound complications from caesarean delivery such as dehiscence or infection cause a significant emotional and economic burden in obstetric care. There are many methods and techniques for skin wound closure in caesarean section. Each technique has its own advantages and disadvantages. The aim and objective of this study was to compare the wound outcomes in Pfannensteil incisions closed with mattress sutures using nonabsorbable suture and subcuticular sutures using absorbable sutures in caesarean deliveries.Methods: It is a prospective observational study done on 216 consecutive pregnant women who were admitted to labor room for elective or emergency caesarean section. Patients undergoing caesarean section with Pfannensteil incision between February 2019 to October 2019 were included in this study. Among 216 women, 108 women had mattress sutures and 108 women had subcuticular sutures for skin wound closure. The primary outcome studied was wound complications including erythema, wound dehiscence, burst abdomen, infection and pain which was studied on postoperative day 3-7. The secondary outcome was assessed at 6 weeks follow-up in terms of pain, cosmetic appearance of scar and patient satisfaction about scar.Results: A total of 216 pregnant women undergoing caesarean section were studied who had similar baseline characteristics and risk factors. However, women with previous caesarean section were more in mattress group. The overall incidence of erythema, surgical site infection, wound dehiscence, resuturing and pain was more in mattress group and was statistically significant. During follow-up at 6 weeks, women with subcuticular sutures had cosmetically better scar and more satisfied with their scars than women with mattress sutures but the pain level was same in both groups.Conclusions: Authors conclude that compared to mattress sutures, subcuticular sutures cause significantly fewer wound complications and pain in postoperative period. Also, subcuticular sutures are associated with cosmetically appealing scars and higher patient satisfaction. But there was no difference in pain level at 6 weeks in both methods of skin closure.

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Zhang, Dong, Jinhua Cheng, Ying Liu, Hongjiang Zhang, Lan Ma, Xuemei Mei, and Yihui Sun. "Spatio-Temporal Dynamic Architecture of Living Brush Mattress: Root System and Soil Shear Strength in Riverbanks." Forests 9, no. 8 (August 13, 2018): 493. http://dx.doi.org/10.3390/f9080493.

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As a basal measure of soil bioengineering, the living brush mattress has been widely applied in riparian ecological protection forest construction. The living brush mattress shows favorable protective effects on riverbanks. However, there are few reports on the root structure and the soil strengthening benefit of the living brush mattress. The present work reports a series of experiments on root morphology and soil shear strength enhancement at the temporal and spatial scales. The object of the study is 24 living brush mattress trees constructed with Salix alba L. ‘Tristis’ (LBS hereafter). Traditional root morphology and mechanical measurement methods were used to collect the parameters. The results showed that the root systems of LBS had the characteristics of symmetry and upslope growth. The roots were mainly distributed in a cylindrical region of the soil (radius × thickness: 0.4 m × 0.5 m) and their biomass increased with different growth rates for the periods from 1 to 5 and from 5 to 7 years. Both age and slope position were factors that influence root growth. The root diameter falls within 0–5 mm, has a significant effect on the soil shear strength and provides a conical-shape potentiation zone to ensure the efficient protection of a riverbank. The results of this study demonstrate that LBS is an efficient and feasible engineering measure in the field of riverbank protection.

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Yuliawati, Ratna. "FAKTOR-FAKTOR YANG BERHUBUNGAN DENGAN GANGGUAN FUNGSI PARU PADA PEKERJA PEMBUAT KASUR (STUDI KASUS DI DESA BANJARKERTA KARANGANYAR PURBALINGGA)." Jurnal Ilmiah Manuntung 1, no. 2 (January 26, 2017): 154. http://dx.doi.org/10.51352/jim.v1i2.37.

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Mattress maker is one of the high-risk job of lung function. Dust from the production of an effect on lung function. Research describe dust from production assosiated to the pulmonary dysfunction. Previous studies explain the illness rate reached 70% in workers who inhale cotton dust. Describe the various factors assosiated to the pulmonary dysfunction between age, nutritional status, years of service, the use of masks, ventilation, workplace ownership, and the amount of dust inhaled by the incidence of lung function, job characteristics, and the amount of dust inhaled by the mattress makers in the District Karanganyar Purbalingga. This study was an cross-sectional, with a total sample of 80 workers mattress maker. The independent variable in this study is a age, nutritional status, years of service, the use of masks, ventilation, workplace ownership, and levels of total particles inhaled. The analysis was performed using univariate, bivariate and multivariate as well as by calculating the ratio of prevalence. The results showed that there are 4 variables significantly associated with lung function. that workers exposed to dust> 0.2 mg/m3 per day with a ratio of 27.203 prevalent (95% CI = 1.885 to 39,257) Working period (≥ 10 years), with a ratio of 21,502 prevalent (95% CI = 9.559 to 483,65) The use of masks (not always use) with the ratio of 43.965 prevalent (95% CI = 2.831 to 682,80) Ownership separate workplaces with 27.583 prevalent ratio (95% CI = 1.955 to 389,25). The risk factors significantly associated with impaired lung function is inhaled dust particles, years of service, the use of masks and a separate work between sections. suggested to the labor department and the health department to conduct promotive and preventive so that workers can be maintained mattress maker of health and safety work

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Yu, Xuefei, Wei Song, Cuicui Wang, and Shuangbao Zhang. "Product Safety Risk Monitoring of Palm Fiber Elastic Mattress." Journal of Computational and Theoretical Nanoscience 14, no. 1 (January 1, 2017): 490–96. http://dx.doi.org/10.1166/jctn.2017.6350.

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Risk monitoring and assessment on formaldehyde emission, total volatile organic compound (TVOC), fire resistance, safety and health requirements of palm fiber elastic mattress sold in circulation domain is made after overall consideration of category, distribution channel, purpose and other factors of such products to understand the quality conditions of palm fiber elastic mattress products in our country deeply and comprehensively, find out risk factors, discuss on the monitoring ways and methods of such products and put forward precautionary measures. This research monitored 30 types of products manufactured by 30 enterprises, in which 19 of them were unqualified with the unqualified rate of 63.3%. Risk assessment results are: Risk of formaldehyde on consumers is “serious risk;” risk of TVOC on consumers is “serious risk;” risk of fire resistance on consumers is “serious risk;” risk of safety and health requirements on consumers is “allowable risk.”

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Dash, Sujit Kumar, K. Rajagopal, and N. R. Krishnaswamy. "Behaviour of geocell-reinforced sand beds under strip loading." Canadian Geotechnical Journal 44, no. 7 (July 1, 2007): 905–16. http://dx.doi.org/10.1139/t07-035.

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A series of laboratory model tests have been performed to study the behaviour of geocell-reinforced sand beds under strip loading. The strain in geocell walls, pressure transmitted to the subgrade soil, and deformations in the subgrade were measured during the tests to develop an understanding of the mechanism of geocell reinforcement. The pattern of strain variation in the geocell walls indicates that the geocell mattress behaves as a composite beam supported by the subgrade soil. The load dispersion in the geocell mattress is found to be governed by factors such as geometry of the geocell layer and its placement position under the footing.Key words: soil reinforcement, geocell, sand, behaviour, strip loading.

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Yu, Na, Chong Yu, Hui Li, and Ming Li. "Effects of mattress firmness on infant body pressure distribution." International Journal of Industrial Ergonomics 83 (May 2021): 103101. http://dx.doi.org/10.1016/j.ergon.2021.103101.

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Vasile, Simona, Benny Malengier, Alexandra De Raeve, and Frank Deruyck. "Influence of selected production parameters on the hand of mattress knitted fabrics assessed by the Fabric Touch Tester." Textile Research Journal 89, no. 1 (October 19, 2017): 98–112. http://dx.doi.org/10.1177/0040517517736471.

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The overall comfort of a bedding system is, among others, the result of the moisture and thermal management capabilities of its components, including mattress ticking fabrics. The hand of mattress ticking fabrics, their smoothness, softness, flexibility, and thermal properties, in particular, partially contribute to the sleep quality. Manufacturers pay a great deal of attention to this aspect and make efforts to improve fabric hand as customers always touch and squeeze the fabric and the perceived fabric hand will partially influence their buying decision. In this study the hand of 12 mattress fabrics was investigated by the Fabric Touch Tester (FTT), which is a relatively new characterization method of fabric hand. The FTT measures simultaneously 13 fabric indices related to four categories of fabric physical properties, namely bending, compression, and thermal and surface properties. These fabric indices are subsequently used by the FTT software to predict three primary comfort indices (i.e. smoothness, softness, warmth) and two global comfort indices (i.e. total hand and total feel). The fabrics were differentiated by three production parameters, namely fabric mass per unit area, concentration of softener and fiber composition. Relevant tactile properties for mattress ticking fabrics, such as smoothness, softness, warmth, and flexibility, were assessed by an expert panel and the average scores given by the assessors were correlated with the fabric indices measured by the FTT. Among the selected variables, fabric mass per unit area has the greatest influence on all FTT fabric indices. Due to the large fabric set, considerable variances were observed between the scores assigned by the panels. That resulted in poor correlations between tactile properties and selected production parameters, although the trend seems to be correct and all the factors were found to be statistically significant. Strong correlations were found between the FTT fabric indices and tactile properties assessed by the panels, except warmth, which suggests that the FTT is suitable to assess mattress ticking fabrics with elevated mass per unit area and uneven texture.

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Budha, Made Lndah Nastiti Utami, Roni Naning, and Ketut Dewi Kumara Wati. "The relationship between contact to cat and the development of asthma in children." Paediatrica Indonesiana 49, no. 6 (December 31, 2009): 379. http://dx.doi.org/10.14238/pi49.6.2009.379-86.

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Background Data suggesting history of direct or indirect contactto cats are either protective, has no effect or increase risk ofsensitization and asthma development.Objective To determine the relationship between childhoodcontact to cat and the development of asthma in children.Methods A case control study was conducted in Denpasar sinceDecember 2006 until Juli 2008. In this study, subjects withasthma (cases group) were selected for comparisons to a series of healthy subjects without asthma (controls group). Forty-sevensubjects (3-12 years) with asthma were recruited and matched(age and sex) with 4 7 healthy and non asthma controls. Data were collected using two kinds of questionnaires, i.e: ISAAC, ATS 78, and Robertson modification questionnaire from Medical School, University of Indonesia, which had been validated to determine asthma and asthma risk factors questionnaire. Data were analyzed as univariate by using chi-square or Fisher's exact test, and multivariate analysis by stepwise logistic regression model.Results Result of univariate analysis showed that there were seven significant risk factors of asthma. Using multivariate analysis, contact to cat was significant risk factor for asthma [OR: 4.5 (95% CI 1.3 to 16.0), P= 0.020]. Other significant risk factors were; contact to cockroach [OR: 11.7 (95% CI 2.6 to 51.6), P= 0.001], use of kapok mattress [OR: 6.4 (95% CI 1.4 to 29.0), P= 0.015], passive smoker [OR: 4.7 (95% CI 1.3 to 17.0), P= 0.018], and atopic history [OR: 9.2 (95% CI 2.3 to 36.7), P= 0.002].Conclusions There was a relationship between childhood contactto cat and the development of asthma in children. Risk factors that statistically significant were; contact to cockroach, use of kapok mattress, passive smoker, and history of allergy in study subject.

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Ifon, Ifon, Timbul Supodo, Sunarsih Sunarsih, Sanihu Munir, and Azis Harun. "RISK FACTORS PULMONARYTUBERCULOSIS IN POASIA HEALTH CENTRES IN THE COASTAL REGION OF KENDARI CITY." INDONESIAN JOURNAL OF HEALTH SCIENCES RESEARCH AND DEVELOPMENT (IJHSRD) 3, no. 1 (March 28, 2021): 149–58. http://dx.doi.org/10.36566/ijhsrd/vol3.iss1/68.

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Introduction:Tuberculosis or pulmonary tuberculosis is an infectious disease caused by the presence of the bacteria Mycobacterium Tubercolusis. Tuberculosis is a health problem. Kendari City prevalence is 3.53 per 1,000 population, especially in the work area of ??the Puskesmas Poasia, coastal area of ??Kendari City, every year there is a decrease, namely in 2017 as much 51 cases of lung TB smear positive, in 2018 as many50 cases of smear positive pulmonary TB and in 2019 as many49 cases of smear positive. However, this has not yet been able to achieve the National target, which is a minimum cure rate of 85%.The research objective was to determine the risk factors for the incidence of smear positive pulmonary TB inPuskesmasPoasia in the coastal area of ??Kendari City. Methods: This type of research is a case control Study conducted from December 2020 to January 2021, the sample used are 30 cases taken by random sampling and 30 controls. Result: Using Odds Ratio (OR). OR valuehabit of cleaning mosquito nets OR = 9,036> 1, cleaning or drying bedding or mattress OR = 6,571> 1, Drop Out Treatment nno OR value, humidityOR = 6.909> 1, sunlight lighting OR = 5,675> 1and home ventilationOR = 4.030> 1. Conclusion: Habit of cleaning mosquito nets, cleaning or drying bedding or mattress, moisture, sunlight lighting and home ventilation is a risk factor meanwhile drop out treatmentis not a risk factor for the incidence of smear positive pulmonary TB in PuskesmasPoasia in the coastal area of ??Kendari City.

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Kim, Bong-Gi, Kyu-Hwan Jeong, and Hyeong-Ki Shin. "EVALUATION OF DOSE IN SLEEP BY MATTRESS CONTAINING MONAZITE." Radiation Protection Dosimetry 187, no. 3 (June 28, 2019): 286–99. http://dx.doi.org/10.1093/rpd/ncz163.

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Abstract Some companies in Korea have sold beds which contain a processed product containing monazite powder. Consumers may receive external exposure by radiation emitted by progeny radionuclides in uranium and thorium, and internal exposure through the breathing of radon progeny radionuclides produced in the decay chain. Thus, in this study, age specific dose conversion factors (mSv y−1 Bq−1) by external exposure and dose conversion factors by internal exposure (mSv y−1 per Bq m−3) were derived. Besides, a dose assessment program were developed to calculate dose by taking into account real conditions. And the age specific dose was evaluated using the radioactive concentration measured by the NSSC. As a results, external exposure was assessed to get effective doses in the range of 0.00086 to 0.0015 mSv y−1 by external exposure and a committed effective doses in the range of 1.3 to 12.26 mSv y−1 by internal exposure for all age groups.

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Simon, Barry N., Narender P. Reddy, and Anand Kantak. "A Theoretical Model of Infant Incubator Dynamics." Journal of Biomechanical Engineering 116, no. 3 (August 1, 1994): 263–69. http://dx.doi.org/10.1115/1.2895729.

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A spatially lumped mathematical model was developed and used for a computer simulation of the neonate-incubator system for parametric analysis of the factors that influence neonatal thermo-regulation. The simulation examined the effects of the following parameters: (1) size of the infant; (2) respiratory rate; (3) metabolic rate; (4) heart rate; (5) thermal properties of the mattress; (6) specific heat capacity of the incubator wall; (7) air flow rate; (8) heater control mechanisms.

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Ferreira, Thayná Ruiz, Sérgio Marques Costa, Joyce Marinho de Souza, Anthony Cesar de Souza Castilho, Lizziane Kretli Winkelströter Eller, Daniela Vanessa Moris, and Marcus Vinicius Pimenta Rodrigues. "Viability of Candida albicans in different fomites and hospital surfaces under disinfectants and biological fluids influence." Research, Society and Development 10, no. 5 (May 10, 2021): e38010515049. http://dx.doi.org/10.33448/rsd-v10i5.15049.

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Hospital environment has factors that promote increased infections caused by microorganisms allowing them to remain viable for long periods on surfaces and fomites. The aim of our study was to identify the viability of Candida albicans in hospital environment common surfaces with biological fluids presence and disinfectants. Four surfaces (cotton fabric, synthetic fabric, egg crate foam mattress and, ceramic floor) were contaminated with a strain of Candida albicans ATCC 26790 and with an association of distilled water, blood, saliva and urine. Also, combinations of surfaces and fluids with addition of 70% alcohol and 2% sodium hypochlorite were tested. Viability was identified at 1, 3, 7, 14 and 21 days by Colony Forming Units counting. C. albicans presented 14 days viability in hospitals fabrics with absence of liquids and maintained this persistence under influence of distilled water and blood. It also showed low growth with urine addition and there was growth inhibition with 2% sodium hypochlorite while with 70% alcohol and blood there was persistence for up to 7 days in synthetic fabric and mattress. The understanding of these yeasts persistence in hospital surfaces and fomites is essential for a better delineation of protocols control the spread and these infections prevention in healthcare environments.

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DeVocht, James W., David G. Wilder, Eric R. Bandstra, and Kevin F. Spratt. "Biomechanical evaluation of four different mattresses." Applied Ergonomics 37, no. 3 (May 2006): 297–304. http://dx.doi.org/10.1016/j.apergo.2005.07.002.

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Hayn, Dieter, Markus Falgenhauer, Jürgen Morak, Karin Wipfler, Viktoria Willner, Walter Liebhart, and Günter Schreier. "An eHealth System for Pressure Ulcer Risk Assessment Based on Accelerometer and Pressure Data." Journal of Sensors 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/106537.

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Pressure ulcers are a common skin disease which is associated with pain, reduced autonomy, social isolation, and reduced quality of life. There are several systems for monitoring of pressure ulcer-related risk factors on the market, but up to now no satisfactory solution is available, especially for people with medium pressure ulcer risk. We present a novel pressure ulcer risk assessment and prevention system, which combines the advantages of accelerometer and pressure sensors for monitoring pressure ulcer risk factors. Sensors are used for detection of repositionings of the person lying on the mattress. Sensor data are sent to a tablet where they are analysed and presented graphically. The system was evaluated in a long-term test at the homes of people of the target group. Results indicate that the system is able to detect movements of persons while lying in bed. Weak correlation in between mobility and Braden pressure ulcer risk was found (correlation factor = 0.31). From our data, long-term trends could be visualized as well as 24 h mobility profiles. Such graphical illustrations might be helpful for caregivers in order to optimize care of people with medium to high pressure ulcer risk.

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Dupuis, J., and M. Gatineau. "Longitudinal tendon tear concurrent with bilateral medial luxation of the superficial digital flexor muscle tendon in a dog." Veterinary and Comparative Orthopaedics and Traumatology 23, no. 04 (2010): 289–93. http://dx.doi.org/10.3415/vcot-09-05-0059.

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SummaryLuxation of the superficial digital flexor muscle tendon (SDFMT) is a rarely reported condition in dogs, and tendon tear concurrent with SDFMT luxation had never been reported. Abnormal conformation of both calcanei and strenuous activity were suspected as contributing factors in this case. Bilateral medial SDFMT luxation was surgically treated with bursa medial incision release, redundant lateral bursa excision and apposition to the edge of the SDFMT with nonabsorbable sutures. The unilateral longitudinal tendon tear of the SDFMT associated with medial SDFMT luxation was successfully treated with horizontal mattress sutures, and a good outcome was reported for both hindlimbs.

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Nazaré, Shonali, Rick D. Davis, and Kathryn Butler. "Assessment of factors affecting fire performance of mattresses: a review." Fire Science Reviews 1, no. 1 (2012): 2. http://dx.doi.org/10.1186/2193-0414-1-2.

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Laurino, Marco, Danilo Menicucci, Angelo Gemignani, Nicola Carbonaro, and Alessandro Tognetti. "Moving Auto-Correlation Window Approach for Heart Rate Estimation in Ballistocardiography Extracted by Mattress-Integrated Accelerometers." Sensors 20, no. 18 (September 22, 2020): 5438. http://dx.doi.org/10.3390/s20185438.

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Continuous heart monitoring is essential for early detection and diagnosis of cardiovascular diseases, which are key factors for the evaluation of health status in the general population. Therefore, in the future, it will be increasingly important to develop unobtrusive and transparent cardiac monitoring technologies for the population. The possible approaches are the development of wearable technologies or the integration of sensors in daily-life objects. We developed a smart bed for monitoring cardiorespiratory functions during the night or in the case of continuous monitoring of bedridden patients. The mattress includes three accelerometers for the estimation of the ballistocardiogram (BCG). BCG signal is generated due to the vibrational activity of the body in response to the cardiac ejection of blood. BCG is a promising technique but is usually replaced by electrocardiogram due to the difficulty involved in detecting and processing the BCG signals. In this work, we describe a new algorithm for heart parameter extraction from the BCG signal, based on a moving auto-correlation sliding-window. We tested our method on a group of volunteers with the simultaneous co-registration of electrocardiogram (ECG) using a single-lead configuration. Comparisons with ECG reference signals indicated that the algorithm performed satisfactorily. The results presented demonstrate that valuable cardiac information can be obtained from the BCG signal extracted by low cost sensors integrated in the mattress. Thus, a continuous unobtrusive heart-monitoring through a smart bed is now feasible.

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Yu-Chi, Lee, Lee Chih-Yun, and Wang Mao-Jiun. "Better combination of thickness and hardness of mattress topper for supine sleeping posture: A physiological measurements evaluation." International Journal of Industrial Ergonomics 78 (July 2020): 102979. http://dx.doi.org/10.1016/j.ergon.2020.102979.

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Zhao, Chuan, and Guo Ping Cheng. "Application of AHP in Material Selection in Slope Protection Project in Riverway." Advanced Materials Research 683 (April 2013): 921–24. http://dx.doi.org/10.4028/www.scientific.net/amr.683.921.

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In recent years, with the development of engineering material technology and its application in project, a number of choices are available for the slope protection project in riverway. For the increasing number of applications of gabion and reno mattress in such engineering projects, as advanced flexible materials, which are also obviously competitive in protection effect and service life, they are more expensive comparing to the traditional masonry and concrete. Therefore, comprising AHP method and both the qualitative and the quantities analyses focusing on five major factors, the execution condition, construction cost, protection effect, service life and management & maintenance, this paper provides reference for decision-makers to choose the most appropriate material in the slope protection project.

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Jenkins, Richard O. "Mattress risk factors for the sudden infant death syndrome and dust-mite allergen (der p 1) levels." Allergy and Asthma Proceedings 29, no. 1 (January 1, 2008): 45–50. http://dx.doi.org/10.2500/aap2008.29.3077.

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Fan, Hongwei, Yongliang Chen, Dongmei Huang, and Guoqin Wang. "Kinetic Analysis of the Thermal Decomposition of Latex Foam according to Thermogravimetric Analysis." International Journal of Polymer Science 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/8620879.

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The thermal decomposition of latex foam was investigated under nonisothermal conditions. Pieces of commercial mattress samples were subjected to thermogravimetric analysis (TG) over a heating range from 5°C min−1 to 20°C min−1. The morphology of the latex foam before and after combustion was observed by scanning electron microscopy (SEM), and the primary chemical composition was investigated via infrared spectroscopy (FT-IR). The kinetic mechanism and relevant parameters were calculated. Results indicate that the decomposition of latex foam in the three major degradation phases is controlled by third-order reaction (F3) and by Zhuravlev’s diffusion equation (D5). The mean E values of each phase as calculated according to a single heating rate nonisothermal method are equal to 41.91 ± 0.06 kJ mol−1, 86.32 ± 1.04 kJ mol−1, and 19.53 ± 0.11 kJ mol−1, respectively. Correspondingly, the preexponential factors of each phase are equal to 300.39 s−1, 2355.65 s−1, and 27.90 s−1, respectively. The mean activation energy E and preexponential factor A of latex foam estimated according to multiple heating rates and a nonisothermal method are 92.82 kJ mol−1 and 1.12 × 10−3 s−1, respectively.

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PRADANA, TEDY DIAN, IDJERIAH ROSSA, and DERI. "FACTORS THAT RELATED TO INCIDENT MEDIAL EPICONDYLITIS (GOLFER ELBOW) ON WORKERS SPRINGBAD FURNITURE MAKER." JURNAL BORNEO AKCAYA 2, no. 2 (December 31, 2015): 106–13. http://dx.doi.org/10.51266/borneoakcaya.v2i2.53.

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Golfer elbow or medial epicondylitis is irritation of the tendon that causes the tendon tears; the pronator teres muscle and flexor carpi radialis muscle. These are induced by the repetitive movements, hand arm vibration and aggravated by the attitude of a static work. Also, lifting up the workload continuously and holding vibratory a working tool trigger this irritation. The purpose of this study to determine factors associated with the incidence of medial epicondylitis (golfer's elbow) on workers springbad Bigland furniture maker PT. Dayak Lestari Ekaniaga. An observational method and a cross sectional approach were carried out in this study. The samples were 45 Bigland mattress makers. Bivariate analysis found that the Repetitive Motion P Value = 0.041 and hand arm vibration (pvalue = 0.017), the working position (P = 0.001), the load/weight of the tool (P = 0.003) and a grip (P = 0.001) associated with the incidence of medial epicondylitis (golfer's elbow). The conclusion of this study, is significant relationship between Repetitive Motion, Hand Arm Vibration, the working position (P = 0.001), the load/weight of the tool (P = 0.003) and a grip (P = 0.001) Against Genesis medial epicondylitis (Golfer Elbow) In Worker Furniture Makers Springbad Bigland Pt. Dayak Lestari Ekaniaga

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Hapa, Onur, Ahmet Karakaşlı, Onur Başçı, Hakan Cici, Berivan Çeçen, and Hasan Havitçioğlu. "The primary factor for suture configuration at rotator cuff repair: Width of mattress or distance from tear edge." Acta Orthopaedica et Traumatologica Turcica 50, no. 4 (August 2016): 448–51. http://dx.doi.org/10.1016/j.aott.2016.07.003.

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Olechnowicz, J., and JM Jaskowski. " Behaviour of lame cows: a review." Veterinární Medicína 56, No. 12 (December 27, 2011): 581–88. http://dx.doi.org/10.17221/4435-vetmed.

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Claw horn disorders, infectious diseases of hooves and leg injuries cause lameness in dairy cows. However, such diseases as sole haemorrhages, sole ulcers or white line diseases, cause clinical lameness. Lameness reduces milk production, the fertility of cows and also causes earlier culling of cows, as well resultings in a deterioration of their welfare. In this review we focus on the impact of lameness on bovine behaviour. The time spent lying down is an important behaviour of dairy cows. As an increased locomotion score is associated with an increased percentage of cows lying down, also the position of cows within the milking parlour is associated with lameness. Lame cows are more likely to present toward the end of milking. Clinical lameness is a chronic stressor, reducing progesterone concentrations prior to oestrus, and resulting in reduced sexual behaviour; however, lame cows have the same potential period of oestrus when compared with non-lame cows. Hoof diseases, particularly those which are a source of pain, also reduce animal welfare. A high standard of cow welfare may be achieved by improving the lives of animals and the people who work with them. A lack of comfort while lying presents a significant risk for lameness. Improvements in comfort on more than 75% of farms (32 out of a total number of 53 farms) reduced the incidence of mastitis, while on 42 farms it reduced the prevalence of lameness. The keeping of cows on the straw bed of stalls does not only improve animal welfare, mainly through the greater comfort of the floor, but has also been showed to increase eating and ruminating behaviour. Cows also prefer straw to sand bedding and lay down longer on straw than on sand; however, cleanliness and hoof health have been shown to be better on sand. Apart from comfort, the main factors which promote improvements in bovine welfare and health, include good management of dairy farms, keeping cows in free stalls with accompanying regular exercise, and a long time spent at pasture. The prevalence of clinical lameness was demonstrated to be higher on farms using mattresses when compared with farms using deep-bedded stalls. No differences were found in behaviour among cows with different degrees of lameness housed in mattress stalls. Hence, measures of laying behaviour are not good indicators of lameness.  

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Mazzocca, Augustus D., Peter J. Millett, Carlos A. Guanche, Stephen A. Santangelo, and Robert A. Arciero. "Arthroscopic Single-Row versus Double-Row Suture Anchor Rotator Cuff Repair." American Journal of Sports Medicine 33, no. 12 (December 2005): 1861–68. http://dx.doi.org/10.1177/0363546505279575.

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Background Recurrent defects after open and arthroscopic rotator cuff repair are common. Double-row repair techniques may improve initial fixation and quality of rotator cuff repair. Purpose To evaluate the load to failure, cyclic displacement, and anatomical footprint of 4 arthroscopic rotator cuff repair techniques. Hypothesis Double-row suture anchor repair would have superior structural properties and would create a larger footprint compared to single-row repair. Study Design Controlled laboratory study. Methods Twenty fresh-frozen cadaveric shoulders were randomly assigned to 4 arthroscopic repair techniques. The repair was performed as either a single-row technique or 1 of 3 double-row techniques: diamond, mattress double anchor, or modified mattress double anchor. Angle of loading, anchor type, bone mineral density, anchor distribution, angle of anchor insertion, arthroscopic technique, and suture type and size were all controlled. Footprint length and width were quantified before and after repair. Displacement with cyclic loading and load to failure were determined. Results There were no differences in load to failure and displacement with cyclic loading between the single-row repair and each double-row repair. All repair groups demonstrated load to failure greater than 250 N. A significantly greater supraspinatus footprint width was seen with double-row techniques compared to single-row repair. Conclusions The single-row repair technique was similar to the double-row techniques in load to failure, cyclic displacement, and gap formation. The double-row anchor repairs consistently restored a larger footprint than did the single-row method. Clinical Relevance The arthroscopic techniques studied have strong structural properties that approached the reported performance of open repair techniques. Double-row techniques provide a larger footprint width; although not addressed by this study, such a factor may improve the biological quality of repair.

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Harris-Adamson, Carisa, Emma Lam, Fadi Fathallah, Angela D. Tong, Stephen Hill, and Andrew Smith. "The ergonomic impact of a mattress lift tool and bottom sheet type on hotel room cleaners while making beds." Applied Ergonomics 81 (November 2019): 102880. http://dx.doi.org/10.1016/j.apergo.2019.102880.

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Sitharam, T. G., S. Sireesh, and Sujit Kumar Dash. "Model studies of a circular footing supported on geocell-reinforced clay." Canadian Geotechnical Journal 42, no. 2 (April 1, 2005): 693–703. http://dx.doi.org/10.1139/t04-117.

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The potential benefits of geocell reinforcement in soft clay foundations have been studied by a series of laboratory-scale static load tests on a rigid circular footing placed on a fill surface. Parameters of the test program include depth of placement of the geocell layer, width and height of the geocell layer, and influence of an additional layer of planar geogrid at the base of the geocell mattress. With the provision of geocell reinforcement, the load-carrying capacity of the soft clay foundation can be improved by a factor of up to 4.8 times that of the unreinforced soil. Heaving of the soil can be reduced substantially by providing geocell reinforcement of sufficient height and width. Further improvement in performance could be obtained with the provision of an additional layer of planar geogrid at the base of the geocell mattress.Key words: model study, circular footing, soft clay, geocell reinforcement, reinforced soil.

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Kadyraliev, B. K., V. B. Arutyunyan, S. V. Kucherenko, and E. A. Gorbunova. "Influence of suture technique in aortic valve replacement on occurrence of "Prosthesis-Patient" mismatch." Perm Medical Journal 37, no. 6 (January 28, 2021): 81–88. http://dx.doi.org/10.17816/pmj37681-88.

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Objective. To determine the suture technique, which provides better hemodynamic indices in aortic valve replacement. Aortic valve AV) pathology is a widespread pathology among elderly persons and since the share of them increases every year, the number of surgeries for AV replacement is growing. Many factors can influence the hemolytic characteristics of AV prosthesis including construction of cusps and supporting ring. Suture technique can also influence the hemodynamic results of AV replacement. Conventional technique for attaching mechanical valve is an interrupted sealing suture. Materials and methods. Patients who underwent AV prosthetics isolated prosthetics, prosthetics combined with coronary artery bypass grafting, with mitral valve repair, tricuspid valve repair or aortic prosthetics) over the period from January 2015 to September 2018 were studied. All statistical calculations were fulfilled using IBM SPSS Statistics 23.0 IBM Corp., Armonk, NY). Results. Altogether, from January 2015 to September 2018, 439 patients underwent AV prosthetics; 321 patient 73.1 %) underwent isolated AV replacement. Unsealed technique had less frequency of occurrence of prosthesis-patient" mismatch PPM), especially in the small aortic ring compared with the other suturing techniques. The suture type was the following: sealing and figure-of-eight suture and the number of sutures more than 16 were the risk factors for moderate and severe PPM in logistic regressive analysis; the suture technique was an independent risk factor for moderate and severe PPM. Conclusions. An interrupted mattress unsealed suture permits to implant the AV prosthesis on the native fibrous ring of the valve with less frequency of occurrence of prosthesis-patient" mismatch and promotes improvement of hemodynamics in patients with a small fibrous ring of the aortic valve.

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Kogure, Takamasa, Shuichiro Shirakawa, Masato Shimokawa, and Yuji Hosokawa. "Automatic Sleep/Wake Scoring from Body Motion in Bed: Validation of a Newly Developed Sensor Placed under a Mattress." Journal of PHYSIOLOGICAL ANTHROPOLOGY 30, no. 3 (2011): 103–9. http://dx.doi.org/10.2114/jpa2.30.103.

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Sangkarit, Noppharath, Wantana Siritaratiwat, Surussawadi Bennett, and Weerasak Tapanya. "Factors Associating with the Segmental Postural Control during Sitting in Moderate-to-Late Preterm Infants via Longitudinal Study." Children 8, no. 10 (September 26, 2021): 851. http://dx.doi.org/10.3390/children8100851.

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(1) Background: biological variables and particular child rearing practices could be linked to postural control and rates of sitting onset. The segmental Assessment of Trunk Control (SATCo) is currently used as an assessment of postural control with a specific segment on premature infants. However, the association between related factors and segmental trunk control during sitting development in preterm infants via longitudinal assessments is still limited. Objective: to investigate the associations between biological and child rearing factors and segmental trunk control during sitting in moderate to late premature birth from the age of 4 months to age of independent sitting attainment. (2) Methods: forty-two infants born between 32 and 36 weeks of gestation were recruited. Their segmental trunk control was assessed using the SATCo. Their related factors were recorded from the age of 4 months to early onset of independent sitting attainment. The generalised estimating equation (GEE) model was used to identify the association between related factors and the SATCo with a linear distribution. (3) Results: cause of prematurity, baby rocking recliner and baby walker usage were negative factors, while play in a sitting position, opportunity to move on a traditional mat and sleep mattress were positive factors contributing to the segmental control of the trunk. (4) Conclusions: the experience of sitting on different surfaces and an opportunity to sit without support during the child rearing period from age of 4 months corrected could be positive factors associating with the segmental trunk control in moderate-to-late premature infants.

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Weststrate, Jan, and Freerk Heule. "Prevalence of pressure ulcers, risk factors and use of pressure-relieving mattresses in ICU patients." Connect: The World of Critical Care Nursing 1, no. 3 (September 2001): 77–82. http://dx.doi.org/10.1891/1748-6254.1.3.77.

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Doh, Gyeonghyeon, and Chan Yeong Heo. "Pathogenesis and prevention of pressure ulcer." Journal of the Korean Medical Association 64, no. 1 (January 10, 2021): 16–25. http://dx.doi.org/10.5124/jkma.2021.64.1.16.

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The number of pressure ulcer patients is increasing owing to the aging population and increased incidence of elderly illness. This review article aims to introduce the current knowledge on the pathogenesis and prevention of pressure ulcers. The development of a pressure ulcer is associated with external factors such as pressure, shear stress, and friction and internal factors such as age, general condition, skin condition, and nutritional status. Pressure ulcers typically develop over bone protrusions, which are most pressured by weight, but may also be caused by external pressure by medical devices or other objects applied to the patient. This tissue damage is caused by continuous deformation of the tissue due to the pressure acting perpendicular to the tissue surface and shear stress acting parallel to the tissue, either alone or in combination. Limitation of activity and mobility, skin condition, blood circulation and oxygen saturation, nutrition, humidity, body temperature, age, low pain sensitivity, blood count, and general and mental conditions are the primary risk factors for pressure ulcers. A mattress and cushion that reduce pressure and an appropriate posture are necessary to prevent pressure ulcers. In patients with urinary incontinence, contaminated skin should be washed with a mild detergent and absorbent pads and topical protective agents should be used to protect the skin from moisture. Sufficient nutrition may help prevent wounds in patients who are susceptible to pressure ulcers. Furthermore, early screening, individualized management of posture, and regular skin and nutrition monitoring are essential to prevent pressure ulcers.

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Sulardi, Sulardi. "PROTEKSI PIPA BAWAH LAUT DENGAN METODE ARTICULATED CONCRETE BLOCK MATTRESSES." INFO-TEKNIK 21, no. 1 (August 15, 2020): 1. http://dx.doi.org/10.20527/infotek.v21i1.8959.

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One of the problems in the operation of pipelines for oil and gas through the sea is the damage and failure submarine pipe line (SPL). The purpose of this study is to provide an overview of the factors and causes of damage and failure of the submarine pipeline which results in the cessation of the supply of feed intake of crude oil to the oil refinery unit. The method used in this research is a application research with a case study approach to the handling of problems with damage and failure of submarine pipelines, how the replacement and how to protect it is most suitable and in accordance with applicable regulations. The results showed that the protection of submarine pipelines with articulated concrete block matresses and immersion as deep as 2 meters had completed the regulatory aspects and were safe against the effects of collisions and dragged ship anchors. The results of this study also recommend that this protection method can be replicated to overcome similar problems in other work units.

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Withanage, ND, S. Perera, H. Peiris, S. Prathapan, and LV Athiththan. "Regression Model for Socio-demographic, Behavioural and Occupational Risk Factors in Lumbar Disc Herniation (LDH) and Lumbar Disc Degeneration (LDHD)-In Comparison to Apparently Healthy Subjects." International Journal of Human and Health Sciences (IJHHS) 5, no. 4 (July 20, 2021): 424. http://dx.doi.org/10.31344/ijhhs.v5i4.352.

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Objective: Present study was aimed to develop a regression model for selected sociodemographic, behavioural and occupational factors with lumbar disc herniation (LDH) and lumbar disc hearniation and degeneration (LDHD) in a selected population in comparison to healthy individuals.Materials & Methods: The study was conducted using 104 cases with disc herniation and controls (n=104) without LDH. Analysis was conducted in sub groups of patients with LDH (n=67) and LDHD (n=37) in comparison to control subjects. Pre-tested questionnaire was administered to all participants to gather information.Results & Discussion: Among the cases 35.6 % presented with LDHD while 64.4 % had only LDH. Among the socio-demographic characters, body mass index <25 kgm-2 was a significant protective factor for both LDHD (OR=0.31; 95% CI=0.13-0.72) and LDH (OR=0.39; 95% CI=0.20-0.77). Involvement in daily activities with heavy (OR=5.1; 95 % CI=2.1-11.8) and moderate strain (OR=3.1; 95 % CI=1.5-6.6) to back, sitting more than eight hours per day (OR=5.1; 95 % CI=1.0-25.7), smoking (OR=5.0; 95 % CI=1.5-16.4) and sleeping in supine position (OR=2.09; 95% CI=1.09-4.06) were significant risk factors for LDH. Only daily physical activities with heavy strain act as a significant risk factor (OR=3.1; 95 % CI=1.1-8.5) for the development of LDHD. Types of mattresses used did not have a significant difference among cases and controls. Majority of cases (56.7 %) did not know the causative factor that led to LDH. According to the regression model, BMI, smoking and involvement in physical activities with moderate and heavy strain to back were considered as significant risk factors for the development of LDH or LDHD.Conclusion: In regression model BMI, smoking and daily physical activities with moderate and heavy strain to back were found to be the significant risk factors for development of LDH or LDHD.International Journal of Human and Health Sciences Vol. 05 No. 04 October’21 Page: 424-434

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Rosin, Nicole R., Robyn S. Tabibi, John D. Trimbath, and Mary Kristina Henzel. "A Primary Care Provider’s Guide to Prevention and Management of Pressure Injury and Skin Breakdown in People With Spinal Cord Injury." Topics in Spinal Cord Injury Rehabilitation 26, no. 3 (October 2020): 177–85. http://dx.doi.org/10.46292/sci2603-177.

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Skin breakdown, including burns and pressure injuries (PrIs), is a devastating complication of spinal cord injury (SCI). Chronic wounds place the person with SCI at high risk of infections, sepsis, and death. Skin health and breakdown is individual and multifactorial, thus prevention requires individualized education focused on patient preferences and goals. Assessment requires an accurate description of wound type/PrI stage, location, size, wound bed, wound margin, epithelialization, exudate, and peri-wound condition. PrIs should be staged using the National Pressure Injury Advisory Panel (NPIAP) staging system. Successful treatment requires optimal wound bed preparation, pressure off-loading, and access to surgical specialists if needed. Mattress and seating systems, pressure relief, skin microclimate, nutrition, and home supports should be optimized. To promote wound healing and aid prevention, identifiable causes need to be removed, risk factors improved, and wound care provided. Infection should be treated with input from infectious disease specialists. Consideration for specialized surgical management including flaps and primary closures should be coordinated with the interdisciplinary team to optimize outcomes. If comorbid conditions promote wound chronicity, a palliative rather than curative treatment plan may be needed.

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Zhou, Jie, Yiqun Tang, Peng Wan, Zeyao Li, and Chuanhe Wang. "Experimental Study on Thermal Balance in Soft Clay Area During GSHP Operation." Applied Sciences 9, no. 9 (April 28, 2019): 1764. http://dx.doi.org/10.3390/app9091764.

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Geothermal energy resources, such as a green and clean renewable energy, are utilized all over the world, especially in soft clay areas along coastal cities in China, such as Shanghai. However, the operation of the ground-buried heat exchanger potentially affects the initial temperature field and the thermal balance, which will probably result in some potential engineering or environmental problems. This paper presents results from a series of large-scale laboratory modeling experiments which were conducted to study the thermal balance in saturated soft clay during the operation of the ground source heat pump (GSHP) system. In experiments, thermal phenomena are induced by a heat exchanger which is embedded in the testing soils and investigated by temperature sensor arrays. It summarizes the experimental methodologies and presents the time-dependent temperature distribution within the testing soils both in operation stage and the re-stabilization duration. Characteristics of thermal balance are discussed in two specific parameters of relative time ratio and temperature factor by comparing summer and winter cases. The thermal mattress effect is proposed to provide valuable guidelines for the utilization and operation of the GSHP system in soft clay areas.

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Maemura, Kosei, Yuko Mataki, Hiroshi Kurahara, Shinichiro Mori, Naotomo Higo, Masahiko Sakoda, Satoshi Iino, et al. "Pancreaticogastrostomy after Pancreaticoduodenectomy Using Twin Square Wrapping with Duct-to-Mucosa Anastomosis." European Surgical Research 55, no. 1-2 (2015): 109–18. http://dx.doi.org/10.1159/000433425.

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Background/Purpose: This study aimed to evaluate the feasibility and safety of a novel pancreaticogastrostomy technique for diminishing pancreatic fistulas after pancreaticoduodenectomy using gastric wrapping of the pancreatic stump with a twin square-shaped horizontal mattress and a suture fixing the main pancreatic duct to the gastric mucosa anastomosis [twin square wrapping (TSW) method]. Methods: Fifty-three patients undergoing pancreaticogastrostomy after pancreaticoduodenectomy were included in the study and chronologically divided into a conventional group (n = 32) and a TSW group (n = 21). The perioperative factors and the postoperative outcomes were retrospectively analyzed. Results: The operating time for the pancreatic anastomosis, the total operating time, and the blood loss volume in the TSW group were lower than in the conventional group, but without a statistically significant difference. The TSW group had a significantly lower postoperative white blood cell count and C-reactive protein level, with a reduced intra-abdominal fluid accumulation as assessed by computed tomography on postoperative day 7, had a lower incidence of postoperative complications and pancreatic fistulas, and achieved a shorter duration of drain placement and shorter postoperative hospital stays as compared to the conventional group. Conclusions: The TSW technique should be considered for reducing pancreatic fistulas by diminishing the postoperative inflammatory response and improving patient outcomes without increasing the operating time.

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Bharatnur, Sunanda, and Vandana Agarwal. "Surgical site infection among gynecological group: risk factors and postoperative effect." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 7, no. 3 (February 27, 2018): 966. http://dx.doi.org/10.18203/2320-1770.ijrcog20180875.

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Background: This study was carried out to evaluate the preoperative and intraoperative risk factors associated with surgical site infection amongst gynecology patients and its impact on postoperative recovery.Methods: A prospective, observational study was conducted among 285 patientsWho underwent surgery over a period of two years. Diagnosis of SSI was made as per CDC criteria. Various risk factors and impact of SSI on postoperative recovery were analysed. Statistical analysis was carried out with SPSS version 16.0. Range and mean was calculated for continuous variables and overall incidence rate of SSI is also calculated. Pearson Chi-square test was used to test risk factor association with SSI. Odds ratios and 95% confidence intervals (CI) was calculated. Significance was assumed at a p value of less than 0.05.Results: The incidence of SSI was found to be 52 out of 285 women (46%). Majority of SSI, i.e. 49 out of 52 (94%) were superficial in nature. Deep SSI was seen in 3 patients (6%). No organ/space infection was noted in any patient. Women who were over 50 years had higher risk of developing SSI than women between 36 to 50 years (OR 0.519 Vs 0.214). The risk of SSI was 4 times in case of clean contaminated wounds as compared to clean wounds (OR 3.877). The risk further increased to 7 times in case of dirty wounds (OR 6.753). Other risk factors which are significantly associated with SSI were BMI (p value <0.001), midline incisions (p <0.001) and Mattress suture (p <0.001). Presence of previous scar had intraoperative adhesions, weaker scar and poor healing which predispose to development of SSI. Comorbidities which influence SSI’s in the present study are diabetes mellitus (OR 5.49, 95% CI 2.506-12.066, P <0.001), anaemia (OR 4.63, Cl 2.458-8.756) and hypertension (OR 2.46, Cl 0.994-6.117). Wound swab was sterile in 33(63%) cases and 18(35%) cases showed growth of the organism. Most common organism noted was E. coli 9 (50%) followed by Klebsiella and Staph aureus.Conclusions: SSIs are increasing in the current scenario due to increase in the number of surgeries, however they can be prevented by early identification and optimization of medical comorbidities and BMI. Meticulous preoperative workup and intraoperative surgical steps are important in reducing the risk of developing SSI. A decrease in infection rate can lead to substantial reduction in the burden of disease.

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Kühn, Shafreena, Nadine Wöhler, Andrej Wehle, Lara Küenzlen, Jens Rothenberger, Robert Sader, Gottfried Lemperle, and Ulrich Michael Rieger. "Otoplasty through Ventral Skin Incision and Shaping of the Antihelix by Abrasion—A Retrospective Study." Journal of Clinical Medicine 10, no. 16 (August 20, 2021): 3713. http://dx.doi.org/10.3390/jcm10163713.

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(1) Background: Protruding ears are the most common auricular malformation affecting approximately 5% of the population. One common factor leading to auricular protrusion is a deficiency or total absence of the antihelix. A technique first described by Gottfried Lemperle in 2003 attempts cartilage thinning, folding, and fixation by non-absorbable mattress sutures after ventral skin incision along the ventral helical rim. (2) Methods: Retrospective analysis of patient records was performed for otoplasties according to this technique, performed between 1985 and 2014 at Agaplesion Markus Hospital in Frankfurt, Germany. All recorded complications were examined. (3) Results: A total of 912 single otoplasties were performed according to this technique from 1985 to 2014. Overall complications included 26% minor complications not requiring further surgery and 11% major complications leading to revision surgery. Within those requiring revision surgery, the most common reason was recurrence of auricular protrusion (5%), followed by suture granulomas (5%) and hematomas (2%). (4) Conclusions: Lemperle’s otoplasty technique addresses the open thinning and shaping of the antihelix through a ventral incision along the helix to prevent irregularities and possible ridges. Results show a low complication rate comparable to data found in published studies. This technique is easy to perform, safe, and avoids often seen contour irregularities of the antihelix compared to techniques with a posterior approach.

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Journal articles on the topic 'Mattress Factory'

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