Relevant bibliographies by topics / PPE

Academic literature on the topic 'PPE'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 March 2023

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Journal articles on the topic "PPE"

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Leesombun, Arpron, Ladawan Sariya, Jarupha Taowan, Chowalit Nakthong, Orathai Thongjuy, and Sookruetai Boonmasawai. "Natural Antioxidant, Antibacterial, and Antiproliferative Activities of Ethanolic Extracts from Punica granatum L. Tree Barks Mediated by Extracellular Signal-Regulated Kinase." Plants 11, no. 17 (August 30, 2022): 2258. http://dx.doi.org/10.3390/plants11172258.

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The nonedible parts of the pomegranate plant, such as tree barks and fruit peels, have pharmacological properties that are useful in traditional medicine. To increase their value, this study aimed to compare the antioxidative and antibacterial effects of ethanolic extracts from pomegranate barks (PBE) and peels (PPE). The antiproliferative effects on HeLa and HepG2 cells through the extracellular signal-regulated kinase pathway were also evaluated. The results indicated that the total amounts of phenolics and flavonoids of PBE and PPE were 574.64 and 242.60 mg equivalent gallic acid/g sample and 52.98 and 23.08 mg equivalent quercetin/g sample, respectively. Gas chromatography–mass spectrometry revealed that 5-hdroxymethylfurfural was the major component of both PBE (23.76%) and PPE (33.19%). The 2,2-diphenyl-1-picryl-hydrazyl-hydrate free radical scavenging capacities of PBE and PPE, in terms of the IC50 value, were 4.1 and 9.6 µg/mL, respectively. PBE had a greater potent antibacterial effect against Escherichia coli, Staphylococcus aureus, Salmonella Enteritidis, and S. Typhimurium. PBE and PPE (1000 µg/mL) had exhibited no cytotoxic effects on LLC-MK2. PBE and PPE (250 and 1000 µg/mL, respectively) treatments were safe for BHK-21. Both extracts significantly inhibited HepG2 and HeLa cell proliferations at 10 and 50 µg/mL, respectively (p < 0.001). The results indicated that PBE and PPE have remarkable efficiencies as free radical scavengers and antibacterial agents, with PBE exhibiting greater efficiency. The inhibitory effects on HepG2 might be through the modulation of the ERK1/2 expression. PBE and PPE have the potential for use as optional supplementary antioxidative, antibacterial, and anticancer agents.
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EL-Aguel, Asma, Rosamaria Pennisi, Antonella Smeriglio, Imen Kallel, Maria Pia Tamburello, Manuela D’Arrigo, Davide Barreca, et al. "Punica granatum Peel and Leaf Extracts as Promising Strategies for HSV-1 Treatment." Viruses 14, no. 12 (November 26, 2022): 2639. http://dx.doi.org/10.3390/v14122639.

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Punica granatum is a rich source of bioactive compounds which exhibit various biological effects. In this study, pomegranate peel and leaf ethanolic crude extracts (PPE and PLE, respectively) were phytochemically characterized and screened for antioxidant, antimicrobial and antiviral activity. LC-PDA-ESI-MS analysis led to the identification of different compounds, including ellagitannins, flavonoids and phenolic acids. The low IC50 values, obtained by DPPH and FRAP assays, showed a noticeable antioxidant effect of PPE and PLE comparable to the reference standards. Both crude extracts and their main compounds (gallic acid, ellagic acid and punicalagin) were not toxic on Vero cells and exhibited a remarkable inhibitory effect on herpes simplex type 1 (HSV-1) viral plaques formation. Specifically, PPE inhibited HSV-1 adsorption to the cell surface more than PLE. Indeed, the viral DNA accumulation, the transcription of viral genes and the expression of viral proteins were significantly affected by PPE treatment. Amongst the compounds, punicalagin, which is abundant in PPE crude extract, inhibited HSV-1 replication, reducing viral DNA and transcripts accumulation, as well as proteins of all three phases of the viral replication cascade. In contrast, no antibacterial activity was detected. In conclusion, our findings indicate that Punica granatum peel and leaf extracts, especially punicalagin, could be a promising therapeutic candidate against HSV-1.
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Bhamra, Navdeep, Keshav Gupta, Jonathan Lee, Shams Al-Hity, Karan Jolly, and Adnan Darr. "Personal protective equipment: knowledge of the guidance." British Journal of Nursing 30, no. 1 (January 14, 2021): 16–22. http://dx.doi.org/10.12968/bjon.2021.30.1.16.

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Background: On 11 March 2020, the World Health Organization (WHO) declared a global pandemic in the wake of the coronavirus disease 2019 (COVID-19) outbreak. The unpredictable nature of transmission of COVID-19 requires a meticulous understanding of guidance on personal protective equipment (PPE) as published by WHO and Public Health England (PHE). Aim: To assess perceived confidence and knowledge of PHE guidance relating to PPE by nursing staff. Methods: A nationwide survey was disseminated between May and June 2020 through social media platforms as well as internal mail via regulatory bodies and individual hospital trusts. Results: Data were collated from 339 nurses. Perceived confidence as measured on a Likert scale was a mode score of 3/5, with the average score for knowledge-based questions being 5/10. Of the respondents, 47% cited insufficient training on PPE guidance, and 84% advocated further training. Conclusions: Unifying published PPE guidance and ensuring consistency in training can improve awareness, confidence, and knowledge among nursing staff.
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Gordan, Lucio N., Basit Iqbal Chaudhry, Maen A. Hussein, Nora Connor, Andrew Yue, Michael Diaz, T. R. Strickland, Lisa Tran, and Nathan Walcker. "Practice transformation at scale through a microsystems quality improvement (QI) approach." Journal of Clinical Oncology 39, no. 15_suppl (May 20, 2021): e18667-e18667. http://dx.doi.org/10.1200/jco.2021.39.15_suppl.e18667.

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e18667 Background: How oncology providers should implement practice transformation for value-based care is unclear, particularly at scale. Organizational size enables efficient “top down” approaches, but also presents challenges such as physician engagement. Dis-economies of scale can be acute in oncology due to physician autonomy and coordination costs. We hypothesized that organizational change based in sense-making models that enhance physician engagement and use a decentralized, iterative microsystems approach will enable practice transformation to scale. Methods: Florida Cancer Specialists & Research Institute (FCS) is a physician led 250-oncologist statewide practice, with regional variation in disease state/mix, patient cohort, etc., making a purely top-down approach to organizational change infeasible. FCS prototyped a transformation strategy starting in June 2017 based on sharing interpreted data with physician and executive leadership. Later implementation directly engaged physicians in a microsystems quality QI strategy focused on regional performance. Interventions targeted disease, health service utilization, location, and individual physicians. Performance was evaluated using data from Medicare’s Oncology Care Model (OCM) and assessed using the one-sided risk target (4% below benchmark). We analyzed 70,239 performance period (PP) episodes at FCS across 35,116 patients. Results: In the pre- intervention period (90% of PP1 episodes, completed by June 2017), FCS was 5.8% above target. Performance was 10.9% above target for the remainder of PP1 (10% of PP1 episodes), then improved to 0.3% above target in PP2 and PP3, and below target by 0.9%, 0.8%, and 0.75% in PP4, PP5, and PP6. Early QI efforts focused on performance in lung cancer, which was 2.5% over target in PP1; it improved to 2.1% under target in PP6. Later regional QI sessions targeted cancer, utilization and providers. Pre-intervention, all 18 regions were above target; by PP6, 11 out of 19 regions were below target. Relative to the pre-intervention period, per-episode inpatient costs increased by 12.1% for the remainder of PP1 and increased by 4.3% and 1.3% in PP2 and PP6; inpatient costs decreased in PP3, PP4, and PP5 by 3.8%, 2.4% and 4.8%. Conclusions: Practice transformation in oncology can achieve scale through models of organizational change that foster physician engagement. Data, when clinically contextualized, is a foundational tool in the sense-making process. Scale can develop through an additive microsystems approach in which QI units are de-centralized, accountability is defined, and iteration becomes part of organizational culture. [Table: see text]
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García, Paula, Carolina Fredes, Inés Cea, Jesús Lozano-Sánchez, Francisco Javier Leyva-Jiménez, Paz Robert, Cristina Vergara, and Paula Jimenez. "Recovery of Bioactive Compounds from Pomegranate (Punica granatum L.) Peel Using Pressurized Liquid Extraction." Foods 10, no. 2 (January 20, 2021): 203. http://dx.doi.org/10.3390/foods10020203.

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Pressurized liquid extraction (PLE) is a clean and environmentally friendly alternative for the recovery of bioactive compounds from fruit by-products. Herein we focused on PLE for the extraction of bioactive compounds from pomegranate peel using a combination of pressurized water and ethanol. The main aim was to determine the optimal PLE conditions, i.e., ethanol percentage and process temperature, to obtain a pomegranate peel extract (PPE) with maximum total phenolic content (TPC), punicalagin content, and antimicrobial activity (AMA). The experimental design was conducted using a central composite design with axial points. Response surface methodology was applied to optimize the response variables using the desirability function. Multiple response optimization indicated a process temperature of 200 °C and ethanol of 77% as optimal conditions. The TPC and the punicalagin content of PPE-PLE obtained under optimal conditions were 164.3 ± 10.7 mg GAE/g DW and 17 ± 3.6 mg/g DW, respectively. Our findings support the efficacy of PLE on TPC recovery but not in punicalagin recovery. The AMA against S. aureus was 14 mm. The efficacy of PPE-PLE in food applications must continue to be studied in order to achieve adequate information on its potential for developing new food additives.
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Ferro, R. T., and T. K. Bond. "THE PPE." Medicine & Science in Sports & Exercise 35, Supplement 1 (May 2003): S313. http://dx.doi.org/10.1097/00005768-200305001-01734.

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Williams, J. "Enhanced PPE?" British Dental Journal 228, no. 9 (May 2020): 655–56. http://dx.doi.org/10.1038/s41415-020-1587-6.

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Sahni, V. "PPE update." British Dental Journal 229, no. 9 (November 2020): 567–68. http://dx.doi.org/10.1038/s41415-020-2357-1.

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D’Cruz, Len. "PPE or not PPE - that is the question." British Dental Journal 228, no. 10 (May 2020): 753–54. http://dx.doi.org/10.1038/s41415-020-1639-y.

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KATAYOSE, Teruo. "Thermosetting PPE Resin." Kobunshi 47, no. 4 (1998): 259. http://dx.doi.org/10.1295/kobunshi.47.259.

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Dissertations / Theses on the topic "PPE"

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Jonasson, Simon. "Phoenix. : PPE wildfire respirator." Thesis, Umeå universitet, Designhögskolan vid Umeå universitet, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-162081.

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Forest fires has become an increasing threat all over the world. Pollution and rising greenhouse gases has led to an ever increase in global temperatures. Sweden has previously been spared from larger fires, but in the past few year it has been been made clear that these climate changes will affect the number and intensity of forest fires.  In this project I have investigated how forest fires work and how the process of  extinguishing them looks today. With a focus on the personal equipment I have looked into how to improve the working environment and the safety for fire-fighters. Using the design process this problem is tackled from a holistic point of view, looking at both the users and context. The solutions presented in this project is a professional safety product called “Phoenix. PPe Wildfire respirator”. A lightweight portable oxygen harness with an attached emergency mask.
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Wallaart, Johannes Christiaan Safety Science Faculty of Science UNSW. "Identification, elimination and reduction of barriers to the effective use of respiratory personal protective equipment." Publisher:University of New South Wales. Safety Science, 2008. http://handle.unsw.edu.au/1959.4/43293.

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This thesis is concerned with the identification, elimination and reduction of barriers to the use of personal respiratory protective equipment (RPE) in the workplace to reduce and prevent occupational inhalation disease. Respiratory Protective Equipment (RPE) is widely used in industry, health, emergency response, military settings and many other applications and are in daily use by thousands of people in Australasia. The equipment is generally used to filter or ab/adsorb the contaminants from the air prior to delivery to the wearer by filtering or ad/absorbing contaminants from the air prior to being breathed. There is increasing concerns being expressed worldwide as well as in Australia and New Zealand about the apparent increase in diagnosed occupational diseases and the use of RPE is an essential preventative measure able to be adopted by workplaces. The use of this type of equipment is the option after the preferred options of elimination and isolation of the individual from the contaminant in the atmosphere. In spite of this, many different types of RPE are routinely in use. There are, however, enormous practical, physiological and psychological difficulties in the wearing of RPE. Concerns have been expressed in the literature as well as in practical situations that many different types of RPE was unable to meet the needs of workers, particularly as related to airflows and that current standards did not reflect the real-life workplace demands. This work set out to determine an improved methodology for users to determine the total inward leakage (TIL), the different types and quantities of airflows, particularly Peak Inspiratory Air Flows (PIAF). When communicating (an essential aspect in the workplace for safety reasons), PIAFs rise dramatically. This work showed that PIAF were very high, particularly when communicating, and is likely to exceed the ability of many commercial types of commercially available respiratory equipment as well being in excess of the certification requirements of standard bodies. In addition, Minute Volumes (MV) in a typical Australian workforce were shown to be very variable between individuals and current certification requirement of airflows do not appear to reflect practical use. The thesis further investigated using a questionnaire survey, the knowledge and current intervention measures adopted by farmers in different sections of agriculture, particularly dairy farming. Agriculture in New Zealand is a critical economic activity, employing 10% of the total workforce. This work showed that in spite of many different types of intervention activity spread over many years by Government agencies and private organisations to date, limited awareness exists of inhalation diseases and appropriate types of RPE in different applications (for example, confined space applications). The research would suggest that a different and more intensive approach is needed by Government agencies to address the problem in this workplace community if workplace inhalation diseases are to be reduced in the future.
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Mahasha, Phetole Walter. "The trafficking of the Mycobacterium tuberculosis PE and PPE proteins." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/1862.

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Thesis (MScMed (Biomedical Sciences. Molecular Biology and Human Genetics))--University of Stellenbosch, 2007.
The expansion of the Mycobacterium tuberculosis PE and PPE gene families seems to be linked to that of the immunologically-important ESAT-6 (esx) gene clusters secretion system, as the ancestral members of these families are found only within the ESAT-6 gene cluster regions. These ancestral members are also the only copies in the earlier mycobacteria like M. smegmatis. The later duplications of the PE and PPE families belonging to the PGRS and MPTR subgroups, have been implicated in virulence and are only found within the genomes of the pathogenic mycobacteria closely related to the M. tuberculosis complex. The aim of this study was to compare the subcellular localization of the later duplications of the PE and PPE gene families belonging to the PGRS and MPTR subgroups with that of the ancestral PE and PPE proteins found in M. smegmatis and to investigate whether the ESX secretion apparatus is involved in the trafficking of these proteins. The PE (Rv3872) and PPE (Rv3873) genes from M. smegmatis were PCR amplified with a C-terminal HA tag using M. smegmatis genomic DNA as template. Two PPE-MPTR genes, Rv0442c and Rv0878c, and one PE_PGRS gene, Rv2615c, were also PCR amplified with a C-terminal HA tag using M. tuberculosis genomic DNA as template. All genes were cloned into the mycobacterial expression vector p19Kpro. Expression and localization was investigated using SDS-PAGE and Western blotting. The PE and PPE genes expressed in M. smegmatis were found to be present within the cell wall, membrane, and cytosol fractions, but not in the culture filtrate, indicating no secretion. The PPE-MPTR and PE_PGRS genes expressed in M. smegmatis, were also found to be present within the cell wall, membrane and cytosol fractions, but not in the culture filtrate, indicating that they are also not secreted. We hypothesize that their secretion is dependent on ESAT-6 gene cluster region 5, which is absent from the genome of M. smegmatis. Ancestral PE and PPE proteins are secreted efficiently in M. tuberculosis. The ESAT-6 gene cluster Region 3 and Region 4 of M. smegmatis were knocked out, and these knockout mutants could be used in future studies to investigate if the ESAT-6 gene cluster region 1 is involved in the secretion of the ancestral and recent PE and PPE proteins.
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Costa, Rui Jorge Gonçalves. "Interpretação no turismo: o caso do Portugal dos Pequenitos (PPE)." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/9338.

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Mestrado em Gestão e Planeamento em Turismo
Atualmente, o Turismo tem-se afirmado como uma das principais atividades económicas a nível mundial. Em Portugal, o Turismo representa cerca de 10% do PIB nacional, sendo vital para o desenvolvimento e crescimento de toda a economia nacional. Com o aparecimento de novas necessidades dos turistas, a interpretação assume-se como uma das principais ferramentas do Turismo, dando resposta às diferentes exigências e motivações dos turistas e tem promovido a identidade cultural das atrações turísticas e uma maior satisfação dos turistas. Assim, pretendeu-se com este projeto: (i) Compreender o que é a interpretação no Turismo; (ii) Analisar o potencial impacte da interpretação para os turistas e para os destinos; (iii) Compreender todo o planeamento de um processo de interpretação, incluindo o processo de avaliação da interpretação; (iv) Avaliar a interpretação no “Portugal dos Pequenitos (PPE)”. No sentido de cumprir os objetivos propostos foi realizada uma entrevista dirigida aos visitantes do PPE, tendo-se obtido vinte entrevistas, divididas por quatro grupos diferentes de visitantes. Feita a análise dos dados recolhidos e entre várias conclusões encontradas, a mais importante que se pode retirar da investigação empírica é que, de facto, um plano de interpretação eficiente pode potenciar a competitividade e o valor cultural/histórico das atrações turísticas.
Nowadays, tourism is one of the main economic activities worldwide. In Portugal, tourism it represents about 10% of national GDP, being vital for the development and growth of the entire national economy. With the emergence of new needs of tourists, the interpretation became one of the main tools of tourism, giving answer to the various requirements and motivations of tourists and has promoted the cultural identity of tourism attractions and a greater satisfaction of tourists. Thus, with this project it was aimed to: (i) Understand what the interpretation in tourism is; (ii) Analyze the potential impact of interpretation for tourists and destinations; (iii) Understand the planning of an interpretation process, including the assessment of interpretation; (iv) Evaluate the interpretation in the "Portugal dos Pequenitos (PPE)." In order to achieve the proposed objectives was held an interview aimed at visitors of PPE was held and twenty interviews were obtained, divided by four different groups of visitors. After doing the analysis of the data collected, among several conclusions found, the more important that can be withdraw from the empirical research is, indeed, that a powerful interpretation plan can boost competitiveness and cultural/historical value of tourist attractions.
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Martschick, Anja [Verfasser]. "Pathogenese und Prävention der Anthrazyklin-induzierten PPE : eine prospektive Studie / Anja Martschick." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2010. http://d-nb.info/1024502171/34.

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Pu, Zhengxiang. "A Dynamic Model of the Human/Cooling System/Clothing/Environment System." Doctoral diss., University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2077.

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The human body compensates well for moderate climatic heat stress, but artificial environments often block or overwhelm physiological defense mechanism. Personal protective equipment (PPE) is one of sources of heat stress. It protects individual from chemical, physical, or biological hazards, but the high thermal insulation and low vapor permeability of PPE may also lead to substantial heat stress. Personal cooling is widely used to alleviate heat stress, especially for those situations where ambient environmental cooling is not economically viable or feasible. It is important to predict the physiological responses of a person wearing PPE with personal cooling to make sure that the individual is free of heat stress, as well as any additional discomfort that may occur. Air temperature, radiant temperature, humidity and air movement are the four basic environmental parameters that affect human response to thermal environments. Combined with the personal parameters of metabolic heat generated by human activity and clothing worn by a person, they provide the six fundamental factors which define human thermal environments. If personal cooling system is available, the fluid flow speed, cooling tube distribution density and fluid inlet temperature have significant effects on the human thermal comfort. It is impractical to evaluate the problem experimentally due to too many factors involved. A thermal model was developed to improve human body thermal comfort prediction. The system researched includes human body, personal cooling system, clothing and environment. An existing model of thermoregulation is taken as a starting point. Changes and additions are made to provide better prediction. Personal cooling model was developed and it includes liquid cooling model, air cooling model and ice cooling model. Thermal resistance networks for the cooling system are built up; additionally a combined model of heat and mass transfer from cooling garment through clothing to environment is developed and incorporated into the personal cooling model and thermoregulatory model. The control volume method is employed to carry out the numerical calculation. An example simulation is presented for extra-vehicular activities on Mars. The simulation results agree well with available experimental data, though a small discrepancy between simulation results and experimental data is observed during the beginning of the cooling process. Compared with a water cooling lumped model, the thermal model provides a much better prediction. For water cooling, parametric study shows that the cooling water inlet temperature and liner thermal resistance have great effects on the maximum exposure time; PPE resistance and cooling water flow rate do not have much impact on the maximum exposure time. For air cooling, cooling air flow rate, inlet temperature, relative humidity and liner resistance have great effects on the maximum exposure time.
Ph.D.
Department of Mechanical, Materials and Aerospace Engineering;
Engineering and Computer Science
Mechanical Engineering
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Wang, Chinhua. "Laser induced purely-thermal-wave interferometry (PTWI) using a novel photopyroelectric (PPE) instrument." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0020/NQ53796.pdf.

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Mendez, James D. "Conjugated Polymer Networks and Nanocomposites." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1282841324.

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Josefsson, Rebecca, and Sofie Johannson. "Snabb produktionsomställning i en tid av kris : en fallstudie gällande produktionen av operationsrockar." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-23496.

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Till följd av Covid-19-pandemin har sjukvården i Sverige fått bära mycket stor belastning, samtidigt som den globala efterfrågan och användningen av personlig skyddsutrustning (PPE) kraftigt ökat. Under våren 2020 har den globala handeln upplevt störningar, vilket haft inverkan på leveransen av PPE till sjukvården. Studiens mål var att undersöka vad den inhemska industrin behöver för att ställa om en produktion till att leverera kvalitetssäkrade skyddsprodukter till samhällsviktiga funktioner i ett läge av kris. Metoden har gått ut på litteratur- och fallstudie av en medicinteknisk (MD) operationsrock, samt en intervjustudie med ett antal nyckelpersoner kopplade till produktionsomställning (PO) under pandemins utveckling. Studien resulterade i följande verktyg inför en PO för att snabbt leverera kritiska produkter i en tid av kris.- Beredskapspyramid kopplad till samordning av produktionen.- Producenttriangel kopplad till behov och förutsättningar för den inhemska produktionsindustrin.- Textilteknisk analys av produktionsprocessen för engångs operationsrockar. En slutsats från studien var att för en snabb PO, behövs en tydlig behovsbild med klara ansvarsfördelningar. Den inhemska industrin har skilda förutsättningar för omställning till de höga kvalitetskraven vilka följer produktionen av PPE och MD. Genom att analysera produktionsprocessen för efterfrågade produkter i kris förtydligas vilka parter eller processer som behöver samordnas för en inhemsk produktion. Vidare arbete kan vara utformning av strategisk plan, redo att användas när krisen bryter ut. En samordnad, proaktiv och resurseffektiv beredskap anses öka möjligheten till en miljövänlig PO, då producenter kan anpassa sin omställning enligt prioriterade krav.
As a result of the Covid-19 pandemic, the Swedish healthcare system has had to carry a heavy burden, while the global demand and use of personal protective equipment (PPE) has increased. During the spring of 2020, global trade experienced disruptions, which has had an impact on the delivery of PPE to the healthcare system. The study's goal was to investigate what the domestic industry needs to initiate a production changeover to deliver quality-assured products to the socially important functions in a crisis situation. The method is based on a literature- and case study together with an interview study with key personnel linked to production changeovers (PO) during the pandemic. The study resulted in the following tools for a PO to quickly deliver critical products in a time of crisis:- A contingency pyramid regarding coordination of production.- A producer triangle regarding the needs and prerequisites for the domestic production industry.- A textile-technical analysis of the production process for single-use surgical gowns. Conclusions from the study were that in order to coordinate a fast and resource efficient PO, a clear overview of demands with clear responsibilities is needed. The changeover conditions for the domestic industry varies following the high-quality requirements for producing PPE and MD. By analysing the production process for requested products in various crises, the conditions for which parties or processes need to be coordinated for domestic production are clarified. Further studies can be development of a strategic plan ready to implement when the crisis breaks out. A coordinated, proactive and effective contingency is considered enabling an environmentally friendly PO, as producers can adapt their changeover according to prioritized demands.
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Ferrando, Lebraud Haritz Eder. "Estudi de la viabilitat de la utilització de materials termoplàstics reciclats per a aplicacions en el sector de l'electrònica de consum." Doctoral thesis, Universitat Politècnica de Catalunya, 2007. http://hdl.handle.net/10803/6052.

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En els darrers anys ha augmentat de manera considerable l'interès de les empreses per l'ús de materials reciclats per a la fabricació dels seus productes. Les raons principals són l'estalvi econòmic que comporta a causa del progressiu increment del preu de la matèria primera i l'aposta per una política ambiental d'empresa, com a part de la seva responsabilitat social corporativa, en sintonia amb una sensibilitat creixent en l'opinió pública.
Aquesta tesi s'ha centrat en l'estudi de la viabilitat de la utilització de materials termoplàstics reciclats per a aplicacions en el sector de l'electrònica de consum. En una primera part, s'ha estudiat la viabilitat de la substitució dels materials verges poliestirè antixoc (HIPS) i la mescla de polímers poli(èter de fenilè) amb poliestirè antixoc (PPE/HIPS) pels mateixos materials d'origen reciclat, procedents de residus industrials.
En una segona part, s'ha estudiat la viabilitat de substitució dels mateixos materials verges, estudiats en la primera part, per un material reciclat diferent. Aquest material reciclat ha estat el poli(tereftalat d'etilè)(PET) provinent de la recollida selectiva d'envasos de begudes postconsum.
El treball de recerca ha estudiat la variació de propietats mecàniques i tèrmiques dels materials reciclats de partida i de les mescles de material verge i reciclat, els efectes de la degradació provocats pels processos successius de transformació i la influència de càrregues minerals (fibres i microesferes de vidre) i ignifugants a base de fòsfor lliures d'halògens sobre les propietats dels materials.
L'estudi realitzat sobre aquests tres materials reciclats ha permès analitzar els factors que intervenen en l'estudi de materials reciclats, conèixer-ne les possibilitats d'aplicació en el cas concret de components d'electrònica de consum i crear les bases per poder establir una metodologia per realitzar futurs estudis d'introducció de materials reciclats en altres aplicacions tecnològiques.
En los últimos años ha aumentado de manera considerable el interés de las empresas por el uso de materiales reciclados para la fabricación de sus productos. Las razones principales son el ahorro económico que conlleva a causa del progresivo incremento del precio de la materia prima y la apuesta por una política medioambiental de empresa, como parte de su responsabililidad social corporativa, en sintonía con una sensibilidad creciente en la opinión pública.
Esta tesis se ha centrado en el estudio de la viabilidad de la utilización de materiales termoplásticos reciclados para aplicaciones en el sector de la electrónica de consumo. En una primera parte, se ha estudiado la viabilidad de la sustitución de los materiales vírgenes poliestireno antichoque (HIPS) y la mezcla de polímeros poli(éter de fenileno) con poliestireno antichoque (PPE/HIPS) por los mismos materiales de origen reciclado, procedentes de residuos industriales. En una segunda parte, se ha estudiado la viabilidad de sustitución de los mismos materiales vírgenes, estudiados en la primera parte, por un material reciclado diferente. Este material reciclado ha sido el poli(tereftalato de etileno) (PET) procedente de la recogida selectiva de envases de bebidas postconsumo.
El trabajo de investigación ha estudiado la variación de propiedades mecánicas y térmicas de los materiales reciclados de partida y de las mezclas de material virgen y reciclado, los efectos de la degradación provocados por los procesos sucesivos de transformación y la influencia de cargas minerales (fibras y microesferas de vidrio) y ignifugantes a base de fósforo libres de halógenos sobre las propiedades de los materiales.
El estudio realizado sobre estos tres materiales reciclados ha permitido analizar los factores que intervienen en el estudio de materiales reciclados, conocer las posibilidades de su aplicación en el caso concreto de componentes de electrónica de consumo y crear las bases para poder establecer una metodología para realizar futuros estudios de introducción de materiales reciclados en otras aplicaciones tecnológicas.
In recent years the interest of companies in the use of recycled materials for the manufacture of their products has increased considerably. The main reasons for this are, firstly, the economic savings offered when compared to the progressive increase in the price of the raw material and secondly, the pressure for a company to implement an environmental policy, as part of its 'corporate social responsibility', in tune with a growing sensitivity of public opinion in this area.
This thesis has focussed on studying the feasibility of the use of recycled thermoplastic materials for applications in the consumer electronics sector. In the first part, it centres on the feasibility of the substitution of the virgin materials High-Impact Polystyrene (HIPS) and the mix of polymers poly(ether phenylene) with High-Impact Polystyrene (PPE/HIPS), for the same materials of recycled origin, coming from industrial waste. In the second part, it studies the feasibility of substitution of the virgin materials studied in the first part, by a different recycled material. This recycled material being the pol (ethylene terephtalat) (PET) which comes from the selective collection of post consumption drink bottles.
The research work has studied the variation of mechanical and thermal properties of the original recycled materials and of the mixtures of virgin and recycled material, the effects of the degradation provoked by the successive transformation processes and the influence of mineral fillers (fibres and glass beads) and halogen-free phosphor-based flame retardants, on the properties of the materials.
The study, carried out on these three recycled materials, has allowed the following: analysis of the factors that intervene in the investigation of recycled materials; knowledge regarding the possibilities of application in the case of household electronics components and it has created the bases for being able to establish a methodology for carrying out future studies on the introduction of recycled materials in other technological applications.
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Books on the topic "PPE"

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Muniz, Fernandes Ricardo, and Filho Antunes, eds. PP1, PP2, PP3, PP4, PP5--. São Paulo: SESC São Paulo, 2004.

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American Academy of Family Physicians and American Academy of Pediatrics, eds. PPE: Preparticipation physical evaluation. 4th ed. [Elk Grove Village, Ill.]: American Academy of Pediatrics, 2010.

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São Paulo (Brazil : State). Conselho Estadual de Política Energética. Plano Paulista de Energia: PPE 2020. São Paulo: CEPE, Conselho Estadual de Política Energética, Governo do Estado São Paulo, Secretaria de Energia, 2012.

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Council, National Safety. Personal protective equipment (PPE) compliance training: Participant guide. [Itasca, Ill.]: National Safety Council, 2002.

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Pusat Pengelolaan Lingkungan Hidup Regional Kalimantan (Indonesia). Kompilasi data dan informasi PPE Kalimantan, Kementerian Lingkungan Hidup. Balikpapan, Kalimantan Timur: Pusat Pengelolaan Ekoregion Kalimantan, Kementerian Lingkungan Hidup, 2013.

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Hogan, Theodore J. Complying with OSHA's PPE standard: Measuring and preventing skin exposures : HazMat International '95. Hinsdale, Ill. (8330 S. Madison, Suite 20, Hinsdale 60521): Theodore J. Hogan & Associates, 1995.

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Commission of the European Communities. Directorate-General for Industry., ed. Personal protective equipment (PPE): Useful facts in relation to Directive 89/686/EEC. Luxembourg: Office for the Publications of the European Communities, 1997.

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Stull, J. O. PPE made easy: A comprehensive checklist approach to selecting and using personal protective equipment. Rockville, Md: Government Institutes, 1998.

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Construction personal protective equipment (PPE): Protect yourself = Equipo de protección personal en la construcción : protéjase. Washington, D.C.]: U.S. Dept. of Labor, Occupational Safety and Health Administration, 2005.

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Party, European People's. Europa 2000: L'unit`ba nella diversit`a : programma di basr e programma d'Azione 1994-1999 del Partito Popolare Europeo : IXo congresso del PPE ad Atene, 11-13 novembre 1992 : Xo congresso del PPe a Bruxelles, 8-10 dicembre 1993. Melle: Casa editrice Ernst Knoth, 1994.

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Book chapters on the topic "PPE"

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Bashford, David. "Polyphenylene Ethers (PPE)." In Thermoplastics, 440–41. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1531-2_72.

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Young, Warren, and Frederic S. Lee. "Prologue: Before PPE." In Oxford Economics and Oxford Economists, 1–11. London: Palgrave Macmillan UK, 1993. http://dx.doi.org/10.1057/9780230374379_1.

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Grant, Casey C. "PPE Electronic Inventory." In Interoperable Electronic Safety Equipment, 31–34. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-8277-2_3.

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Bertrand, Catherine, Éric Lecarpentier, and Matthieu Heidet. "PPE of Health Staff." In Disaster Medicine Pocket Guide: 50 Essential Questions, 225–28. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-00654-8_48.

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Stribling, Zachary, and John Holloway. "Shop Safety and PPE." In Illustrated Theatre Production Guide, 87–92. Fourth edition. | New York, NY : Routledge, 2021.: Routledge, 2020. http://dx.doi.org/10.4324/9781003034575-13.

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Heffernan, Mary Beth. "The PPE Portrait Project." In Art as Social Practice, 281–90. New York: Routledge, 2022. http://dx.doi.org/10.4324/9781003169109-29.

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Young, Warren, and Frederic S. Lee. "PPE and Oxford Economics." In The Palgrave Companion to Oxford Economics, 131–46. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-58471-9_5.

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Andersen, Bjørg Marit. "Personal Protective Equipment (PPE)." In Prevention and Control of Infections in Hospitals, 1061–64. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-99921-0_84.

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Grant, Casey C. "PPE Electronic Equipment Workshops." In Interoperable Electronic Safety Equipment, 49–59. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-8277-2_5.

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Koranne, Sandeep. "The Power Processing Element (PPE)." In Practical Computing on the Cell Broadband Engine, 17–34. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0308-2_2.

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Conference papers on the topic "PPE"

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Jordan, T., and Rene Dolata. "Electric arc protection - PPE, selection of PPE, high performance PPE beyond class 2." In 2014 11th International Conference on Live Maintenance (ICOLIM). IEEE, 2014. http://dx.doi.org/10.1109/icolim.2014.6934365.

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Wash, L. "137. PPE Wizard—An Expert System for PPE Selection." In AIHce 2003. AIHA, 2003. http://dx.doi.org/10.3320/1.2757805.

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Hoagland, Elihu. "Arc flash PPE research update." In 2011 IEEE IAS Electrical Safety Workshop (ESW). IEEE, 2011. http://dx.doi.org/10.1109/esw.2011.6164715.

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Hoagland, Elihu Hugh. "Arc flash PPE research update." In 2012 IEEE IAS Electrical Safety Workshop (ESW). IEEE, 2012. http://dx.doi.org/10.1109/esw.2012.6165545.

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Wu, Han-Zhou, Hong-Xia Wang, and Yun-Qing Shi. "PPE-Based Reversible Data Hiding." In IH&MMSec '16: ACM Information Hiding and Multimedia Security Workshop. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2909827.2933196.

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Hohenberger, Susan, and Satyanarayana Vusirikala. "PPE Circuits for Rational Polynomials." In CCS '21: 2021 ACM SIGSAC Conference on Computer and Communications Security. New York, NY, USA: ACM, 2021. http://dx.doi.org/10.1145/3460120.3484562.

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Chabin, S., and M. Toussaint. "PPE directive and live working footwear." In 2014 11th International Conference on Live Maintenance (ICOLIM). IEEE, 2014. http://dx.doi.org/10.1109/icolim.2014.6934367.

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Hoagland, Elihu. "NFPA 70E and ARC flash PPE update." In 2010 IEEE IAS Electrical Safety Workshop (ESW). IEEE, 2010. http://dx.doi.org/10.1109/esw.2010.6164466.

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Hohenberger, Susan, Satyanarayana Vusirikala, and Brent Waters. "PPE Circuits: Formal Definition to Software Automation." In CCS '20: 2020 ACM SIGSAC Conference on Computer and Communications Security. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3372297.3417230.

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Wiryadinata, Stephanie Graciela, Innamia Indriani, and Sabrina Ilma Sakina. "Biodegradable PPE Made of Pineapple Fiber Paper." In ICON ARCCADE 2021: The 2nd International Conference on Art, Craft, Culture and Design (ICON-ARCCADE 2021). Paris, France: Atlantis Press, 2022. http://dx.doi.org/10.2991/assehr.k.211228.015.

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Reports on the topic "PPE"

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Overbay, Lauren. PPE and Contamination. Office of Scientific and Technical Information (OSTI), May 2022. http://dx.doi.org/10.2172/1870626.

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Wise, Julia. Self-Disinfecting PPE Fabric. Office of Scientific and Technical Information (OSTI), January 2021. http://dx.doi.org/10.2172/1764168.

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Thelen, Paul Mark. Co-60 Sterilization of PPE. Office of Scientific and Technical Information (OSTI), March 2020. http://dx.doi.org/10.2172/1608515.

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Rossman, Grant Andrew, Isaac C. Avina, and Bradley Alexander Steinfeldt. E-PiPEline: Quick to Market Emulated-PPE using Commonly Available Materials. Office of Scientific and Technical Information (OSTI), April 2020. http://dx.doi.org/10.2172/1616503.

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Conroy, Brittany, Tyler Klene, Luke Koppa, and Juyeon Park. Thermo-Physiological Comfort Assessment of Performance Cooling Fabrics in Medical Personal Protective Equipment (PPE). Ames: Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/itaa_proceedings-180814-321.

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Keller, David P. Quantification of “constrained” potential of ocean NETs. OceanNets, 2022. http://dx.doi.org/10.3289/oceannets_d4.1.

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This study uses an existing perturbed parameter ensemble (PPE) of simulated ocean CO2 removal (CDR) to better determine sustainable pathways of ocean-based NET deployment and to provide information to constrain the design of subsequent modelling experiments. The results show that ocean alkalinity enhancement (OAE) can only help meet SDG13 (Climate Action) when other ambitious mitigation efforts are taken. This reinforces that OAE is not a substitute for emissions reduction, but could contribute to meeting our climate goals (if other factors suggest OAE is worth doing). For SDG14 (Life Below Water), the results suggest OEA can contribute to limiting or even reversing ocean acidification. Meeting many other SDG14 objectives is closely linked to also meeting SDG13. A key recommendation is therefore, that subsequent simulations in OceanNETs should only use SDG13 compatible baseline scenarios, unless there is some specific need for process understanding at higher levels of climate change. The analysis has also determined that the idealized CDR in the PPE is not suitable for determining many socio-economic constraints and the implications that these have for meeting the SDGs. Another key recommendation is therefore, that subsequent simulations within OceanNETs should use more realistic scenarios of CDR deployment.
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Sikora, Joel. Final CTAP Report: National Technology & Engineering Solutions of Sandia, LLC Technical Assistance for Characterization Studies of Personal Protection Equipment (PPE). Office of Scientific and Technical Information (OSTI), January 2021. http://dx.doi.org/10.2172/1821533.

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Madrzykowski, Daniel. Firefighter Equipment Operational Environment: Evaluation of Thermal Conditions. UL Firefighter Safety Research Institute, August 2017. http://dx.doi.org/10.54206/102376/igfm4492.

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The goal of this study was to review the available literature to develop a quantitative description of the thermal conditions firefighters and their equipment are exposed to in a structural fire environment. The thermal exposure from the modern fire environment was characterized through the review of fire research studies and fire-ground incidents that provided insight and data to develop a range of quantification. This information was compared with existing standards for firefighting protective equipment to generate a sense of the gap between known information and the need for improved understanding. The comparison of fire conditions with the thermal performance requirements of firefighter protective gear and equipment demonstrates that a fire in a compartment can generate conditions that can fail the equipment that a firefighter wears or uses. The review pointed out the following: 1. The accepted pairing of gas temperature ranges with a corresponding range of heat fluxes does not reflect all compartment fire conditions. There are cases in which the heat flux exceeds the hazard level of the surrounding gas temperature. 2. Thermal conditions can change within seconds. Experimental conditions and incidents were identified in which firefighters would be operating in thermal conditions that were safe for operation based on the temperature and heat flux, but then due to a change in the environment the firefighters would be exposed to conditions that could exceed the protective capabilities of their PPE. 3. Gas velocity is not explicitly considered within the thermal performance requirements. Clothing and equipment tested with a hot air circulating (convection) oven are exposed to gas velocities that measure approximately 1.5 m/s (3 mph). In contrast, the convected hot gas flows within a structure fire could range from 2.3 m/s (5 mph) to 7.0 m/s (15 mph). In cases where the firefighter or equipment would be located in the exhaust portion of a flow path, while operating above the level of the fire, the hot gas velocity could be even higher. This increased hot gas velocity would serve to increase the convective heat transfer rate to the equipment and the firefighter, thereby reducing the safe operating time within the structure. 4. Based on the limited data available, it appears currently available protective clothing enables firefighters to routinely operate in conditions above and beyond the "routine" conditions measured in the fire-ground exposure studies conducted during the 1970s. The fire service and fire standards communities could benefit from an improved understanding of: • real world fire-ground conditions, including temperatures, heat flux, pressure, and chemical exposures; • the impact of convection on the thermal resistance capabilities of firefighting PPE and equipment; and • the benefits of balancing the thermal exposures (thermal performance requirements) across different components of firefighter protective clothing and safety equipment. Because it is unlikely due to trade offs in weight, breathe-ability, usability, cost, etc., that fireproof PPE and equipment will ever be a reality, fire officers and fire chiefs need to consider the capabilities of the protection that their firefighters have when determining fire attack strategies and tactics to ensure that the PPE and equipment is kept within its design operating environment, and that the safety buffer it provides is maintained.
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Gastelum, Zoe N., and Michael J. Henry. Precision Information Environment (PIE) for International Safeguards: Pre-Demonstration Development Use Cases. Office of Scientific and Technical Information (OSTI), November 2013. http://dx.doi.org/10.2172/1122329.

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Marshall, Orange S. In-Place Pipe Lining of Pre-Action Fire Suppression System at Fort McPherson, GA. Fort Belvoir, VA: Defense Technical Information Center, March 2007. http://dx.doi.org/10.21236/ada466975.

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