Evaluating the Directed Method for Bioinspired Design

2012 ◽  
Author(s):  
Michael W. Glier ◽  
Joanna Tsenn ◽  
Julie S. Linsey ◽  
Daniel A. McAdams
Keyword(s):  
Engineering Design ◽  
Design Method ◽  
Idea Generation ◽  
Design Problems ◽  
Bioinspired Design ◽  
Translation Tools ◽  
Significant Difference ◽  
Active Research ◽  
The Impact

Bioinspired design, the practice of looking to nature to find inspiration for engineering design, is becoming an increasingly desired approach to design. It allows designers to tap a wealth of time-tested solutions to difficult problems in a domain rarely considered by designers. Only recently have researchers developed organized, systematic methods for bioinspired design. These methods include BioTRIZ, an extension of functional modeling for bioinspired design, engineering-to-biology keyword translation tools, and specialized design tools like DANE and SAPPHIRE. These organized methods are currently active research efforts. Traditionally, however, bioinspired design has been conducted without the benefit of any organized method. Without the support of formal methods, designers have relied on the “directed method” of bioinspired design. The directed method approach simply directs designers to consider how nature might approach a problem in order to help designers find solutions. This paper presents an experiment to explore the impact upon idea generation of simply contemplating how nature would solve a design problem. This experiment is foundationally important to bioinspired engineering design method research. The results of this experiment serve as a fundamental baseline and benchmark for the comparison of more systematic, and often more involved, bioinspired design methods. A group of 121 novice designers are given one of two design problems and instructed to either generate solutions using the “directed method,” considering how nature would solve the problem, or to generate solutions without being prompted to use any method. Based on the findings presented here, the directed method offers designers no advantage in the average number of non-redundant ideas the designers can produce, the average quality of their solutions, the average solution novelty, or the variety of solutions proposed. Overall, this investigation finds no significant difference in idea generation between the directed method and the control condition. In conclusion, systematic and organized methods for bioinspired design should instead be sought to effectively leverage nature’s design knowledge.

Evaluating the Directed Intuitive Approach for Bioinspired Design

2014 ◽  
Vol 136 (7) ◽  
Author(s):  
Michael W. Glier ◽  
Joanna Tsenn ◽  
Julie S. Linsey ◽  
Daniel A. McAdams
Keyword(s):  
Engineering Design ◽  
Design Method ◽  
Idea Generation ◽  
Design Methods ◽  
Design Knowledge ◽  
Design Problems ◽  
Bioinspired Design ◽  
Engineering Problems ◽  
Novice Designers ◽  
The Impact

Bioinspired design, the practice of looking to nature to find inspiration for solutions to engineering problems, is increasingly a desired approach to design. It allows designers to tap a wealth of time-tested solutions to difficult problems in a domain less considered by designers. Only recently have researchers developed organized, systematic methods for bioinspired design. Traditionally, bioinspired design has been conducted without the benefit of any organized method. Designers relied on the informal “directed intuitive approach” of bioinspired design, which simply directs designers to consider how nature might solve a problem. This paper presents an experiment to explore the impact of the directed approach on idea generation. This experiment is foundationally important to bioinspired engineering design method research. The results of this experiment serve as a fundamental baseline and benchmark for the comparison of more systematic, and often more involved, bioinspired design methods. A group of 121 novice designers are given one of two design problems and instructed to either generate solutions using the directed approach or to generate solutions without being prompted in any additional fashion. Based on the findings presented here, the directed approach offers designers no advantage in the average number of nonredundant ideas, quality, novelty, or variety of the solutions produced. In conclusion, systematic and organized methods for bioinspired design should be sought to effectively leverage nature's design knowledge.

The Impact of Team-Based Product Dissection on Design Novelty

2014 ◽  
Vol 136 (4) ◽  
Author(s):  
Christine A. Toh ◽  
Scarlett R. Miller ◽  
Gül E. Okudan Kremer
Keyword(s):  
Engineering Design ◽  
Design Education ◽  
Engineering Students ◽  
Design Method ◽  
Idea Generation ◽  
Team Members ◽  
Design Concepts ◽  
Engineering Design Education ◽  
Current Design ◽  
The Impact

Although design novelty is a critical area of research in engineering design, most research in this space has focused on understanding and developing formal idea generation methods instead of focusing on the impact of current design practices. This is problematic because formal techniques are often not adopted in industry due to the burdensome steps often included in these methods, which limit the practicality and adoption of these methods. This study seeks to understand the impact of product dissection, a design method widely utilized in academia and industry, on design novelty in order to produce recommendations for the use or alterations of this method for supporting novelty in design. To investigate the impact of dissection, a study was conducted with 76 engineering students who completed a team-based dissection of an electric toothbrush and then individually generated ideas. The relationships between involvement in the dissection activity, the product dissected, the novelty and quantity of the ideas developed were investigated. The results reveal that team members who were more involved in the dissection activity generated concepts that were more novel than those who did not. In addition, the type of the dissected product also had an influence on design novelty. Finally, a positive correlation between the number of ideas generated and the novelty of the design concepts was identified. The results from this study are used to provide recommendations for leveraging product dissection for enhancing novelty in engineering design education and practice.

Antecedents And Outcomes Of Qwl Among Employees In Banks

2019 ◽  
Vol 118 (7) ◽  
pp. 1-19
Author(s):  
Geethanjali N ◽  
Parveen Roja M ◽  
Lavanya D
Keyword(s):  
Organizational Climate ◽  
Job Stress ◽  
Work Life ◽  
Working Environment ◽  
Quality Of Work Life ◽  
Quality Of Work ◽  
Significant Difference ◽  
Service Productivity ◽  
The Impact

Quality of work life is the major factor to be considered in working environment of any organization. The performance of employees and the organization lies on the ability of the employees based on working environment. The QWL leads to better working environment which improves the performance of organization. The present study has made an attempt to find the level of factors causing QWL and the impact of outcome of QWL in banks. Since the profile of the banks may be associated with the level of outcomes of QWL, the present study has made an attempt to examine it with the help of one way analysis of variance and t-test. The included outcomes of QWL are job satisfaction, job stress, organizational climate, organizational commitment, employees retention behaviour, service quality employees and service productivity of employees. The highly associated determinants of QWL and the significant difference among the PUSBs and PRSBs have been noticed. The significantly associating important profiles of the banks regarding the existence of outcome of QWL are identified.

Оrganic Meat Production of Broiler Chickens Hubbard Redbro Cross

2020 ◽  
Keyword(s):  
Broiler Chickens ◽  
Raw Materials ◽  
Animal Health ◽  
Meat Products ◽  
Poultry Meat ◽  
Meat Production ◽  
Significant Difference ◽  
Environmentally Safe ◽  
The Impact

This article presents the results of studying the impact of housing and feeding conditions on broiler chickens of Hubbard RedBro cross, as well as the quality of products obtained when using floor and cage content, in a farm. It established that when receiving a mixed feed of own production using feed raw materials grown on a farm without the use of pesticides, a statistically significant decrease in potentially dangerous substances for animal health is recorded. Compared with factory feed, it has reduced the content of pesticides by 14 times, and mercury and arsenic by 24 times, cadmium by five times, and lead by ten times. The results of the study of economic indicators of growing Hubbard RedBro cross broiler chickens, as well as the chemical composition and quality of carcasses, indicated that there was no significant difference between the floor and cell conditions of keeping. Still, the use of a diet based on eco-feeds contributed to a statistically significant decrease in the concentration of toxic metals in the muscles of the poultry of the experimental groups. As a result, it found that the use of the studied compound feed in the diets of broiler chickens increased the indicators of Biosafety and ensured the production of environmentally safe ("organic") poultry meat products.

scholarly journals Impact on Quality of Life of Patients Treated by Different File Systems for Root Canal Treatment

2021 ◽  
Author(s):  
L.S. Priyanka ◽  
Lakshmi Nidhi Rao ◽  
Aditya Shetty ◽  
Mithra N. Hegde ◽  
Chitharanjan Shetty
Keyword(s):  
Quality Of Life ◽  
Oral Health ◽  
Postoperative Pain ◽  
Root Canal ◽  
File Systems ◽  
Study Groups ◽  
Significant Difference ◽  
Related Quality ◽  
The Impact

Abstract Introduction The outcomes of oral health conditions and therapy for those conditions are described by the term “oral health-related quality of life.” Oral health-related quality of life is recognized by the World Health Organization as an important part of the Global Oral Health Program. The study aims to compare the impact of three root canal preparation systems on patients’ quality of life and correlate postoperative pain with the impact on the quality of life. Materials and Methods A survey was performed in which 90 patients were randomly assigned to three groups based on the root canal preparation system: (1) ProTaper Gold (Dentsply, Tulsa Dental Specialties, Tulsa, Oklahoma, United States), (2) Neoendo flex (Neoendo, India),and (3) Hyflex EDM/CM (Coltene Whaledent) that included 30 participants in each group. Data collection included the implementation of a demographic data questionnaire, Oral Health Impact Profile 14 (quality of life), and visual analogue scale(pain). The questionnaire was given after root canal treatment in the first 24 hours. The data obtained were statistically analyzed. Results No significant differences were found in the quality of life among study groups. Group 1 demonstrated a highly significant difference in the postoperative pain with p value of 2.67. Conclusion Within the limitations of the present study, Protaper Gold showed a highly significant difference in postoperative pain when compared with other file systems. No significant differences were found in the quality of life among the study groups.

scholarly journals Quality of life assessments in clinical practice using either the EORTC-QLQ-C30 or the SEIOQL-DW: a randomized study

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Åsa Kettis ◽  
Hanna Fagerlind ◽  
Jan-Erik Frödin ◽  
Bengt Glimelius ◽  
Lena Ring
Keyword(s):  
Quality Of Life ◽  
Clinical Practice ◽  
Significant Difference ◽  
Patient Reported ◽  
Health Related Qol ◽  
Health Related ◽  
Secondary Outcomes ◽  
The Impact ◽  
Over Time

Abstract Background Effective patient-physician communication can improve patient understanding, agreement on treatment and adherence. This may, in turn, impact on clinical outcomes and patient quality of life (QoL). One way to improve communication is by using patient-reported outcome measures (PROMs). Heretofore, studies of the impact of using PROMs in clinical practice have mostly evaluated the use of standardized PROMs. However, there is reason to believe that individualized instruments may be more appropriate for this purpose. The aim of this study is to compare the effectiveness of the standardized QoL-instrument, the European Organization for Research and Treatment of Cancer Quality of Life C-30 (EORTC-QOL-C30) and the individualized QoL instrument, the Schedule for the Evaluation of Individual Quality of Life-Direct Weighting (SEIQoL-DW), in clinical practice. Methods In a prospective, open-label, controlled intervention study at two hospital out-patient clinics, 390 patients with gastrointestinal cancer were randomly assigned either to complete the EORTC-QOL-C30 or the SEIQoL-DW immediately before the consultation, with their responses being shared with their physician. This was repeated in 3–5 consultations over a period of 4–6 months. The primary outcome measure was patients’ health-related QoL, as measured by FACIT-G. Patients’ satisfaction with the consultation and survival were secondary outcomes. Results There was no significant difference between the groups with regard to study outcomes. Neither intervention instrument resulted in any significant changes in health-related QoL, or in any of the secondary outcomes, over time. This may reflect either a genuine lack of effect or sub-optimization of the intervention. Since there was no comparison to standard care an effect in terms of lack of deterioration over time cannot be excluded. Conclusions Future studies should focus on the implementation process, including the training of physicians to use the instruments and their motivation for doing so. The effects of situational use of standardized or individualized instruments should also be explored. The effectiveness of the different approaches may depend on contextual factors including physician and patient preferences.

scholarly journals Impact of hemodialysis on the wellbeing of chronic kidney diseases patients: a pre-post analysis

2020 ◽  
Vol 27 (1) ◽  
Author(s):  
Um-e-Kalsoom ◽  
Sabiha Khan ◽  
Israr Ahmad
Keyword(s):  
Quality Of Life ◽  
Social Support ◽  
Perceived Social Support ◽  
Kidney Diseases ◽  
Chronic Kidney Diseases ◽  
Group I ◽  
Significant Difference ◽  
Group Ii ◽  
The Impact

Abstract Background Hemodialysis may have serious psychological impact upon patients suffering from chronic kidney diseases. The aim of the present study is to investigate the impact of hemodialysis on the wellbeing of individuals with chronic kidney diseases (CKD). Result A sample consists of (N = 100) CKD patients referred from neurology ward of Leady Reading Hospital Peshawar. Data was collected from both male (50%) and female (50%) in 2017. Participants were divided into two groups on the basis of pre-set criteria. In group I, individuals with 4–5 stage of CKD referred first time for dialysis treatment were recruited. Group II comprised of CKD patients with 1–3 stage. Demographic data sheet, Pakistan Anxiety and Depression, WHO Quality of Life scale, and Perceived Social support scale (PSS) were used to test the hypotheses. Paired sample t test was use to see the difference between pre- and post-analysis of depression, anxiety, QOL, and PSS in group I (experimental group). Results suggests significant difference on depression (p > .001), anxiety (p > .001), and QOL (p > .001), while no significant difference was reported on perceived social support (p <.673). Findings also indicate no significant difference between group I and group II on QOL depression, anxiety, and PSS. Conclusion The findings concluded that patients under hemodialysis treatment suffered from depression, anxiety, and poor quality of life.

Impact of adenotonsillectomy on the quality of life of patients operated on at the Hospital de Clínicas, Paraguay

2021 ◽  
pp. 1-7
Author(s):  
Carlos Mena Canata ◽  
Rebeca Noemí Ruiz Vallejos
Keyword(s):  
Quality Of Life ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Rural Areas ◽  
Urban Areas ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
Before And After ◽  
The Impact

The objective of this study is to determine the impact of adenotonsillectomy on the quality of life of postoperative patients.The study is observational, cross-sectional, and retrospective. The files of all postoperative adenotonsillectomy patients in Otorhinolaryngology Service, Hospital de Clínicas, San Lorenzo Paraguay. The Obstructive sleep apnea – 18 questionnaire (OSA 18) was applied, asking patients about symptoms before and after surgery. An effective sample of 143 postoperative patients was obtained. The average age was 6.05 ± 2.08 years, 55.10% (81) were male and 44.89% (66) were female, 65.30% (96) were from urban areas and 34.69% (51) from the rural areas. The t test was performed for means of two paired samples, comparing the results of the Obstructive sleep apnea – 18 questionnaire surveys before and after surgery which presented a significant difference (p <0.05) with a tendency to improve the quality of life after surgery. It has been shown that there is a significant difference, a considerable improvement in the quality of life of patients after adenotonsillectomy.

Beyond vision loss: the independent impact of diabetic retinopathy on vision-related quality of life in a Chinese Singaporean population

2018 ◽  
Vol 103 (9) ◽  
pp. 1314-1319 ◽  
Author(s):  
Eva K Fenwick ◽  
Ryan E K Man ◽  
Alfred Tau Liang Gan ◽  
Neelam Kumari ◽  
Charlene Wong ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Diabetic Retinopathy ◽  
Vision Loss ◽  
Well Being ◽  
Linear Regression Models ◽  
Cross Sectional ◽  
Significant Difference ◽  
Related Quality ◽  
The Impact

Background/aimsTo assess the independent impact of diabetic retinopathy (DR) on three domains of vision-related quality of life (VRQoL) in a Chinese Singapore population.MethodsThe Singapore Chinese Eye Study (n=3353; 2009–2011) was a population-based, prospective, cross-sectional study conducted at the Singapore Eye Research Institute. The study population included 292 adults with diabetes, with and without DR. DR (better eye) was categorised as presence and absence of any DR; severity of DR (no vision-threatening DR (VTDR); severe non-proliferative DR (NPDR); PDR and/or clinically significant macular oedema and VTDR). Our main outcome was VRQoL which was measured using Rasch-calibrated scores from the ‘Reading’, ‘Mobility’ and ‘Emotional’ domains of the Impact of Vision Impairment questionnaire. The relationship between DR and VRQoL was assessed using multiple linear regression models.ResultsOf the 292 individuals (mean age 61.35 ± 9.66 years; 55.8% male), 201 (68.8%), 49 (16.8%), 20 (6.8%), 22 (7.5%) and 27 (9.2%) had no DR, minimal-mild NPDR, moderate-severe NPDR, PDR and VTDR, respectively. Any DR and VTDR were independently associated with 6% and 12% worse Reading scores and 7% and 18% poorer Emotional well-being, respectively, compared with those without DR. These associations persisted after separate adjustment for visual impairment and presenting visual acuity. No significant difference was found in the Mobility domain between persons with and without DR.ConclusionsWe documented that DR, particularly VTDR, was independently associated with restrictions in Reading and Emotional well-being. Understanding factors underlying the detrimental DR-VRQoL relationship may optimise rehabilitation outcomes for individuals with DR.

scholarly journals Impact of Melatonin and Branched-Chain Amino Acids Cosupplementation on Quality of Life, Fatigue, and Nutritional Status in Cachectic Heart Failure Patients: A Randomized Controlled Trial

2019 ◽  
pp. 155982761987404 ◽  
Author(s):  
Hamed Jafari-Vayghan ◽  
Jalal Moludi ◽  
Sevda Saleh-Ghadimi ◽  
Elgar Enamzadeh ◽  
Mir Hossein Seyed-Mohammadzad ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Heart Failure ◽  
Amino Acids ◽  
Placebo Group ◽  
Nutritional Status ◽  
Branched Chain Amino Acids ◽  
Significant Difference ◽  
Branched Chain ◽  
The Impact

Background: Cardiac cachexia (CC) adversely affects the lifestyle of heart failure (HF) patients. The current study examined the impact of melatonin cosupplementation and branched-chain amino acids (BCAAs) on quality of life (QoL), fatigue, and nutritional status in cachectic HF patients. Methods: In this trial, 84 CC patients were randomized to melatonin, BCAAs, or coadministration (both) as intervention groups and a control group over 8 weeks. At baseline and postintervention, QoL, fatigue, and nutritional status were assessed. Results: After intervention, improvement in the overall and physical dimensions of QoL and appetite score were found to be statistically significant in the BCAAs (P < .001) and the melatonin+BCAAs (P < .001) groups compared with the placebo group. The emotional dimension score was significantly lower in the BCAAs group compared with the placebo group (P = .001). There was a statistically significant improvement in fatigue severity in all 3 intervention groups compared with the placebo group. The nutrition risk index (NRI) score increased significantly only in the melatonin group (P = .015), and there was no significant difference between the other groups (P = .804). Conclusions: Cosupplementation with BCAAs and melatonin improved QoL, fatigue status, and appetite in cachectic HF patients but did not affect NRI.

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