PRINTING.Paper and printer effects on xerographic print quality

2012 ◽  
Vol 27 (4) ◽  
pp. 729-738 ◽  
Author(s):  
Siying Chen ◽  
Ramin Farnood ◽  
Ning Yan ◽  
Sabina Di Risio ◽  
Jay Song
Keyword(s):  
Multivariate Analysis ◽  
Surface Characteristics ◽  
Print Quality ◽  
Paper Properties ◽  
Uncoated Paper ◽  
Visual Ranking ◽  
Two Parameters ◽  
The Impact ◽  
Paper Substrates

Abstract This study examines the impact of paper and printer type on the quality of xerographic prints. Ten different uncoated paper substrates were printed using three different commercial xerographic printers. The print quality of the samples (print microgloss, print microgloss nonuniformity, print density, print and gloss mottle, and visual ranking) and the physical and surface characteristics of the papers were measured. It was found that relationship between print mottle and print gloss nonuniformity was dominated by the printer type. While for some printers, these two parameters were positively correlated, in other cases printer appeared to "mask" variations in the paper properties. Multivariate analysis also showed that brightness, opacity, basis weight, 7 5 ° Tappi gloss, and roughness were the top five paper properties that had the most significant effect on the visual ranking and print mottle. Finally, as expected, print roughness was found to be a better predictor of the perceived print quality, however, paper roughness was poorly correlated with the visual ranking of printed samples (R2 0.5).

scholarly journals The Impact of Post-Manufacture Treatments on the Surface Characteristics Important for Finishing of OSB and Particleboard

Forests ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 975
Author(s):  
Antonio Copak ◽  
Vlatka Jirouš-Rajković ◽  
Nikola Španić ◽  
Josip Miklečić
Keyword(s):  
Water Vapour ◽  
Oriented Strand Board ◽  
Construction Material ◽  
Surface Characteristics ◽  
Surface Treatments ◽  
Factors Affecting ◽  
Treatment Conditions ◽  
Water Vapour Absorption ◽  
The Impact

Oriented strand board (OSB) is a commonly used structural wood-based panel for walls and roof siding, but recently the industry has become interested in OSB as a substrate for indoor and outdoor furniture. Particleboard is mainly used in furniture productions and has become popular as a construction material due to its numerous usage possibilities and inexpensive cost. Moisture is one of the most important factors affecting wood-based panel performance and the post-treatment conditions affected their affinity to water. When OSB and particleboard are used as substrates for coatings, their surface characteristics play an important role in determining the quality of the final product. Furthermore, roughness can significantly affect the interfacial phenomena such as adsorption, wetting, and adhesion which may have an impact on the coating performance. In this research particleboard and OSB panels were sanded, re-pressed and IR heated and the influence of surface treatments on hardness, roughness, wetting, water, and water vapour absorption was studied. Results showed that sanding improved the wetting of particleboard and OSB with water. Moreover, studied surface treatments increased water absorption and water penetration depth of OSB panels, and re-pressing had a positive effect on reducing the water vapour absorption of particleboard and OSB panels.

scholarly journals Impact of malocclusion on the quality of life of Saudi children

2013 ◽  
Vol 83 (6) ◽  
pp. 1043-1048 ◽  
Author(s):  
Irfan Dawoodbhoy ◽  
Elsa K. Delgado-Angulo ◽  
Eduardo Bernabé
Keyword(s):  
Quality Of Life ◽  
Saudi Arabia ◽  
Multivariate Analysis ◽  
The Other ◽  
Arabic Version ◽  
Child Perception ◽  
Clinical Measures ◽  
The Impact ◽  
The Relationship

ABSTRACT Objective: To assess the relationship between malocclusion severity and quality of life in children. Materials and Method: Two hundred and seventy-eight children aged 11 to 14 years were recruited voluntarily from the Dental and Maxillofacial Centre of the Almana General Hospital in Alkhobar, Saudi Arabia. The children were asked to fill out the Arabic version of the Child Perception Questionnaire for 11- to 14-year-old children (CPQ11–14) and were then clinically examined to determine the severity of their malocclusion using the Dental Aesthetic Index (DAI). Multivariate analysis of variance was used to compare the four domains and the total CPQ11–14 scores between the four DAI severity groups. Results: Significant differences were found between DAI severity groups for the four domains and the total CPQ11–14 scores. Although children with very severe (handicapping) malocclusion had significantly higher domain and total CPQ11–14 scores than all the other groups (differences of up to 6 and 22 units, respectively, compared to children with no/minor malocclusion), there were no differences between those with no/minor, definite, and severe malocclusion. Conclusion: These findings suggest that only very severe malocclusion had an impact on the quality of life of the participants. Orthodontists should focus not only on clinical measures of malocclusion but should also consider the impact of severe malocclusion on patients' quality of life.

Impact of pressing regime and substrate type on bond quality of decorative veneer

BioResources ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. 2668-2679
Author(s):  
Vladislav Zdravković ◽  
Tanja Palija ◽  
Aleksandar Lovrić ◽  
Anđela Obradović
Keyword(s):  
Multivariate Analysis ◽  
Bond Strength ◽  
Urea Formaldehyde ◽  
Medium Density Fiberboard ◽  
Medium Density ◽  
Substrate Type ◽  
Bond Quality ◽  
The Impact ◽  
Moisture Resistant

The choice of optimal pressing regime for certain types of substrate is of great importance in production of veneered panels. In this paper, the impact of pressing regime on the bonding strength of beech and oak veneers, glued with urea-formaldehyde (UF) adhesive, on medium-density fiberboard (MDF), and moisture-resistant MDF (MR MDF) substrates was examined. The analyses showed a generally higher bond strength with oak veneer compared to beech veneer, which was also the case with regular MDF compared to moisture-resistant MDF. Multivariate analysis of variance (ANOVA) showed that with beech veneer, all of the used regimes produced better results on regular MDF compared to moisture-resistant MDF. In contrast, with oak veneer, the influence of pressing regime had a more noteworthy impact than the type of substrate used. These results indicated that the use of MR MDF as substrate in combination with UF adhesive was inadequate.

scholarly journals Impact of subthreshold depression on health-related quality of life in patients with Parkinson’s disease based on cognitive status

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Aline Schönenberg ◽  
Hannah M. Zipprich ◽  
Ulrike Teschner ◽  
Julian Grosskreutz ◽  
Otto W. Witte ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Multivariate Analysis ◽  
Cognitive Status ◽  
Inventory Level ◽  
Subthreshold Depression ◽  
The Impact ◽  
Moca Score

Abstract Background In patients with Parkinson’s disease (PD), depression has a strong impact on quality of life (QoL). However, little is known about the influence of subthreshold depression (STD) on QoL in PD patients. Methods A total of 230 hospitalized PD patients with normal and impaired cognitive status were included in this observational study. We collected the following data for analysis: Beck Depression Inventory level, Montreal Cognitive Assessment (MOCA) score, non-motor symptoms questionnaire score, PD questionnaire-39 (PDQ-39) score, Hoehn–Yahr stage, and Movement Disorder Society-sponsored revision of the unified PD rating scale III (MDS-UPDRS III) score. To study the impact of STD on the PDQ-39 summary index (SI) and its domains, we used multivariate analysis of variance and multivariate analysis of covariance. Results In this cohort, 80 (34.8%) patients had STD [44 (32.3%) with high MOCA score (> 21) and 36 (38.3%) with low MOCA score (< 21)]. In PDQ-39 SI, there was a significant effect on depression level. In patients with higher MOCA score, STD was associated with worse PDQ-39 domains emotional well-being and cognition, whereas in patients with lower MOCA score, STD had no significant effect on PDQ-39 SI or its subdomains. Conclusion In PD patients, QoL is significantly affected by STD, and thus, more attention in medical care should be focused on treating STD. However, the impact is only observable in PD patients with normal cognitive function. STD patients show more reduced QoL than non-depressed patients, indicating that STD should be treated as a transition zone between normal mood and depression.

P1551FAMILY SUPPORT IS CRUCIAL FOR DIALYSIS PATIENTS TREATMENT ADHERENCE AND QUALITY OF LIFE

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Lada Trajcheska ◽  
Irena Rambabova Bushljetikj ◽  
Gjulsen Selim ◽  
Aleksandar Sikole ◽  
Goce Spasovski ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Multivariate Analysis ◽  
Family Support ◽  
Laboratory Data ◽  
Dialysis Patients ◽  
Increased Risk ◽  
The Impact ◽  
Phosphorous Level ◽  
Medical Investigations

Abstract Background and Aims Non-compliant dialysis patients are at increased risk of mortality. Compliance depends on patient demographics, educational level and income. Family support and marital status might also influence the patients compliance, as well as the quality of life. Missed/shortened dialysis sessions, adherence to prescribed medications, excessive phosphate serum values and interdialytic weigh gain, smoking and adherence to medical investigations provide indicators of non-compliance. Aim: To assess the impact of family support on different compliance indicators in the dialysis patients. Method In this observational study 134 dialysis patients were scored for different indicators of compliance from 0-2 and summary scores of compliance were assessed. Clinical and laboratory data were obtained from the previous two years. Patients with mean IDWGs &gt;4.5% of body weight (BW) and/or phosphorous level above 1.6 mmol/L were scored with 1, patients with IDWG/BW more than 5.7% and/or 2.0 for mean phosphorous level were scored with 2. Summary scores of non-compliance were also assessed. Patients were scored for quality of life with SF-36 questionnaire. Patients non-adherence was analysed for predictors in multivariate analysis. Results Estimated rates of noncompliance varied: Medical investigations 63%, phosphorous 33, IDWG 22, therapy 14%, HD treatment 9%. When the complete dietary fluid, medications and treatment regimen were studied noncompliance rate was 73%, and when adherence to medical investigations was added the rate rose up to 87%. Patients with family support above median level (≥25) were significantly more often men (0.049), with diabetes (p=0.014), lower socioeconomic status (0.001) and married (0.003). The quality of life scores were significantly worse in the low family supported patients (56.73±26.15 vs 39.23±24.05, p=0.0001). They also scored worse in overall non-compliance scores 2.04±1.71 vs 2.97±2.06, p= 0.007). In the multivariate analysis the non-compliance was predicted most powerfully in patients with younger age, low social status and lower family support (β=-0.202, p=0.023, β=0.220, p=0.036, β=-0.175, p=0.019, respectively). Conclusion Family support is crucial for dialysis patients adherence to treatment and Quality of life. Efforts should be done to recognize the patients real needs and adequately help those confronting dialysis burden and improve their quality of life.

scholarly journals The Change of Printouts' Quality Depending on Pressure of a Blanket Cylinder Against an Impression Cylinder and a Plate Cylinder in Offset Machine

2014 ◽  
Vol 8 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Agnieszka Jurkiewicz ◽  
Yuriy Pyr'yev
Keyword(s):  
Optical Density ◽  
Research Method ◽  
Quality Parameters ◽  
Offset Printing ◽  
Coated Paper ◽  
Machine Manufacturer ◽  
Uncoated Paper ◽  
Two Parameters ◽  
Optimal Settings

Abstract According to lots of books, the pressure in offset printing affects the optical density and the quality of printouts. One of the quality parameters is a tone value increase. An advantage of our research method is obtaining printing effects for different pressures on one printout, thus meaning for identical printing conditions. We obtained the same printing conditions through using different amounts of underlay sheets fixed to the blanket cylinder, under a blanket. The pressure was increased from optimal settings - in accordance with the machine manufacturer’s recommendation. The test printouts were printed using Adast Dominant 515, on a coated and an uncoated paper. The optical density value was measured on the tone value scale from 10% to 100% stepping regularly by 10%. For this scale the tone value increase was computed. The research shows that for both types of paper the optical density and the tone value increase changes not very much above the optimal pressure recommended by the machine manufacturer. A difference in the optical density and in the tone value increase is bigger for coated paper than for uncoated paper. Changes in these two parameters are negligible in places where used form 0 to 4 underlay sheets and are quite significant in the place where 5 underlay sheets were.

scholarly journals Dietary Supplements in Combination with Conventional Medicine among People with Multiple Sclerosis

2021 ◽  
Author(s):  
Pasquale Ferorelli ◽  
Francesco Antonelli ◽  
Anna Shevchenko ◽  
Manfred Doepp ◽  
Stefano Lenzi ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Multiple Sclerosis ◽  
Dietary Supplements ◽  
Conventional Medicine ◽  
Therapeutic Interventions ◽  
Inflammatory Parameters ◽  
The Individual ◽  
Two Parameters ◽  
The Impact

Despite recent advances in immune-modulatory drugs, pharmacological therapies have been proven ineffective in severe presentations of multiple sclerosis (MS), including secondary progressive MS. At present, therapeutic interventions' performance is primarily focused on ameliorating symptoms to improve the patient's quality of life. Among complementary treatments, nutrition has been considered a decisive factor to control symptoms and enhance the wellness of MS patients. Although no special diets are associated with MS, the impact of diet and dietary supplements on the course of progressive forms of the disease have been studied during the last years. Fatigue is among the most common and disabling symptoms reported by MS patients. Fatigue has been defined in the Multiple Sclerosis Council for Clinical Practice Guidelines (MSCCPG, 1998) as a "subjective lack of physical and/or mental energy that the individual perceives as an interference with habitual and desired activities". This study aimed to compare the psychometric functioning of the "Fatigue Severity Scale" (FSS) and the "Modified Fatigue Impact Scale" (MFIS) in our sample of people with MS. Specifically, during chronic treatment, the change in these two parameters with two vitamin-rich dietary supplements (Citozym&reg; and Ergozym&reg;) was evaluated. The impact of these nutritional supplements revealed differences in antioxidant and anti-inflammatory parameters between treatment groups with subsequent improvement in fatigue. In conclusion, the results obtained have confirmed the effectiveness of complementary nutritional therapies, evaluated essentially based on hematological biomarkers, through which it is possible to act on disability to improve the quality of life of MS patients.

scholarly journals ON THE RISK ASSESSMENT OF THE HEALTH OF STUDENTS OF OCCUPATIONAL COLLEGES DEPENDING ON THE CHARACTER OF REALIZED OCCUPATIONS

2019 ◽  
Vol 98 (11) ◽  
pp. 1257-1261
Author(s):  
V. R. Kuchma ◽  
Evgeniya I. Shubochkina ◽  
O. I. Yanushanets ◽  
V. V. Cheprasov
Keyword(s):  
Quality Of Life ◽  
Mental Health ◽  
Working Conditions ◽  
Vocational Training ◽  
Well Being ◽  
Morbidity Rate ◽  
Occupational Training ◽  
Two Parameters ◽  
The Impact

Introduction. At the prenosological level, the impact of vocational training conditions on the indices of health and the quality of life of college students who master groups of occupations that are different in nature and working conditions was assessed. Material and methods. A survey of 1- and 3-year students engaged in vocational secondary education with conditionally “light” (woodworking and restoration) and “difficult” (welders and car mechanics) conditions of work practice was conducted. The questionnaire of quality of life (MOS SF-36) was used, medical and social status was assessed (complaints, the presence of chronic diseases, assessment of well-being, the severity of fatigue, ARVI morbidity rate). The results are processed according to the standard software package using evidence-based medicine. Results. There were obtained marked differences in the nature of the influence of learning conditions on the health and quality of life of students undergoing industrial training in different hygienic conditions. The impact of training and production load during the development of conditionally “light” professions was accompanied by an increase in the health index of graduates, a decrease in the frequency of complaints of headaches and pain associated with ARVI, an increase in undifferentiated complaints. Indices of the quality of life were characterized by an increase in role-based physical functioning (RPF) and a decrease in mental health (MH), which was correlated with increased fatigue. When teaching “hard” occupations in 3-year students, there was an increase in the total number of complaints, complaints of weakness, complaints related to the gastrointestinal tract (GIT), musculoskeletal system and other (undifferentiated) complaints. Indicators of quality of life decreased according to two parameters of physical health (RPF and GIT) and two parameters of mental health (role emotional functioning and MH). conclusion. The significant contribution of occupational training to the deterioration of functional capabilities and the quality of life associated with health is shown for college graduates who learn occupations a profession with “hard” working conditions. Attention is drawn to new forms of the implementation of vocational training in the dual (practice-oriented) training system with an increase in production training time at the workplaces of enterprises, as well as issues of improving the medical support system for students in vocational colleges.

scholarly journals Impact of Inadequate Empirical Therapy on the Mortality of Patients with Bloodstream Infections: a Propensity Score-Based Analysis

2011 ◽  
Vol 56 (1) ◽  
pp. 472-478 ◽  
Author(s):  
Pilar Retamar ◽  
María M. Portillo ◽  
María Dolores López-Prieto ◽  
Fernando Rodríguez-López ◽  
Marina de Cueto ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Propensity Score ◽  
Empirical Therapy ◽  
Bloodstream Infections ◽  
Empirical Treatment ◽  
Multicenter Cohort ◽  
Definitive Therapy ◽  
Empirical Coverage ◽  
The Impact

ABSTRACTThe impact of the adequacy of empirical therapy on outcome for patients with bloodstream infections (BSI) is key for determining whether adequate empirical coverage should be prioritized over other, more conservative approaches. Recent systematic reviews outlined the need for new studies in the field, using improved methodologies. We assessed the impact of inadequate empirical treatment on the mortality of patients with BSI in the present-day context, incorporating recent methodological recommendations. A prospective multicenter cohort including all BSI episodes in adult patients was performed in 15 hospitals in Andalucía, Spain, over a 2-month period in 2006 to 2007. The main outcome variables were 14- and 30-day mortality. Adjusted analyses were performed by multivariate analysis and propensity score-based matching. Eight hundred one episodes were included. Inadequate empirical therapy was administered in 199 (24.8%) episodes; mortality at days 14 and 30 was 18.55% and 22.6%, respectively. After controlling for age, Charlson index, Pitt score, neutropenia, source, etiology, and presentation with severe sepsis or shock, inadequate empirical treatment was associated with increased mortality at days 14 and 30 (odds ratios [ORs], 2.12 and 1.56; 95% confidence intervals [95% CI], 1.34 to 3.34 and 1.01 to 2.40, respectively). The adjusted ORs after a propensity score-based matched analysis were 3.03 and 1.70 (95% CI, 1.60 to 5.74 and 0.98 to 2.98, respectively). In conclusion, inadequate empirical therapy is independently associated with increased mortality in patients with BSI. Programs to improve the quality of empirical therapy in patients with suspicion of BSI and optimization of definitive therapy should be implemented.

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