|
Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
Ετικέτες
Πέμπτη 19 Ιουλίου 2018
Scholar : The American Journal of Family Therapy, Volume 46, Issue 2, March-April 2018 is now available online on Taylor & Francis Online
Scholar : These new articles for Journal of Architectural Conservation are available online
|
Scholar : These new articles for Latin American Business Review are available online
|
Scholar : These new articles for Activities, Adaptation & Aging are available online
|
Treatment of synthetic dye baths by Fenton processes: evaluation of their environmental footprint through life cycle assessment
Abstract
Inorganic and organic constituents present in textile effluents have a noticeable effect on the performance of Fenton processes. However, studies have been focused on simple wastewater matrices that do not offer enough information to stakeholders to evaluate their real potential in large-scale facilities. Chemical auxiliaries, commonly present in textile wastewaters (NaCl = 30 g/L, Na2CO3 = 5 g/L, and CH3COONa = 1 g/L), affect both the economic and environmental performance of the process because they increase the treatment time (from 0.5 to 24 h) and the consumption of H2SO4 (657%) and NaOH (148%) during conditioning steps. The life cycle assessment (LCA) performed with the IPCC-2013 method revealed that dyeing auxiliaries increase from 1.06 to 3.73 (252%) the emissions of carbon dioxide equivalent (CO2-Eqv/m3). Electricity consumption can be considered an environmental hotspot because it represents 60% of the carbon footprint of the Fenton process. Also, the presence of auxiliaries is critical for the process because it results in the increase of the relative impact (between 50 and 80%) in all environmental categories considered by the ReCiPe-2008 method. Chemical auxiliaries increased the costs of the treatment process in 178% (US$2.22/m3) due to the higher energy consumption and the additional reagent requirements. It is worthwhile mentioning that the technical simplicity of the Fenton process and its low economic and environmental costs turn this process into an attractive alternative for the treatment of textile effluents in emerging economies.
https://ift.tt/2zP5OaR
Measuring herpes zoster disease burden in São Paulo, Brazil: a clinico-epidemiological single-center study
OBJECTIVES: Herpes zoster is characterized by acute neuritis and post-herpetic neuralgia. Currently, data concerning the zoster-associated impact on quality of life and healthcare resource utilization in Brazil are scarce. This study measured the zoster-associated burden in a Brazilian population. METHODS: This was a prospective, observational, single-cohort study conducted in a primary hospital's emergency room in São Paulo, Brazil. Patients enrolled at various timepoints during a zoster episode were followed over 180 days. The Zoster Brief Pain Inventory and the Initial Zoster Impact Questionnaire assessed zoster-associated pain. The EuroQoL assessed the impact of herpes zoster and/or zoster-associated pain on quality of life. Healthcare resource utilization was assessed by patient-reported questionnaires. RESULTS: One-hundred forty-six zoster patients were enrolled [mean (SD) age of 69.9 (10.9) years]. Mean (SD) worst pain scores decreased from 5.3 (3.5) at baseline to 1.9 (3.0) 180 days following rash onset. Mean (SD) EuroQoL scores significantly decreased from 0.9 (0.2) before rash appearance to 0.7 (0.2) after rash onset (p<0.001), followed by gradual improvements in quality of life over 180 days, with pre-herpes zoster quality of life achieved at the end of the observation period. The majority of patients purchased prescription medications (89.7%) and required doctor's office visits (65.8%) for zoster episodes. CONCLUSIONS: Herpes zoster is associated with a significant disease burden, including zoster-associated pain, impaired quality of life and increased healthcare resource utilization in Brazil. These results support the implementation of early intervention and prevention programs such as vaccinations to reduce the herpes zoster-associated disease burden in Brazil.
https://ift.tt/2L6OjIe
Clinical Application of Atlantoaxial Pedicle Screw Placement Assisted by a Modified 3D-Printed Navigation Template
OBJECTIVES: To investigate the primary clinical value of atlantoaxial pedicle screw placement assisted by a modified 3D-printed navigation template. METHODS: We retrospectively analyzed the cases of 17 patients treated from June 2015 to September 2016 with atlantoaxial pedicle screw placement assisted by a modified 3D-printed navigation template. All procedures were performed prior to surgery, including thin-slice CT scanning, medical image sampling and computerized 3D modeling of the atlantoaxial joint, optimal pedicle screw trajectory determination, and anatomical trait acquisition for the atlantoaxial pedicle, spinous process of the axis, vertebral lamina and posterior lateral mass, and design of a reverse template. During surgery, a navigation template was tightly attached to the atlantoaxial joint to assist in pedicle screw placement. Surgeons subsequently used an electric drill to remove the template through a guide channel and then placed the atlantoaxial pedicle screw. Observed indexes included the VAS score, JOA improvement rate, surgery duration, and blood loss. RESULTS: Surgery was successful in all 17 patients, with an average operation duration of 106±25 min and an average blood loss of 220±125 ml. Three days postoperatively, the VAS score decreased from 6.42±2.21 to 3.15±1.26. Six months postoperatively, the score decreased to 2.05±1.56. The postoperative JOA score increased significantly from 7.68±2.51 to 11.65±2.72 3 d after surgery and to 13.65±2.57 after 6 months. Sixty-eight pedicle screws were inserted successfully, with 34 in the atlas and 34 in the axis. According to the Kawaguchi standard, 66 screws were in grade 0 (97.06%), and 2 were in grade 1 (2.94%). The pre- and postoperative transverse and sagittal screw angles showed no significant differences. CONCLUSIONS: Atlantoaxial pedicle screw placement assisted by a modified 3D-printed navigation template is worth recommending due to the improved accuracy in screw placement, improved patient safety and beneficial clinical effects.
https://ift.tt/2JD4tmW
Scholar : These new articles for Critical Discourse Studies are available online
|
Regarding the Congruence Between 2 Circulating Tumor DNA Sequencing Assays—Reply
https://ift.tt/2LsNBkD
Analytical Validity and Clinical Utility of Tumor Biomarkers
https://ift.tt/2L4UX1A
A New Dark Skin Lesion in a 3-Year-Old Undergoing Acute Lymphoblastic Leukemia Induction Therapy
https://ift.tt/2LvEn78
Regarding the Congruence Between 2 Circulating Tumor DNA Sequencing Assays
https://ift.tt/2L8uwIj
Complementary Medicine, Refusal of Cancer Therapy, and Survival Among Patients With Curable Cancers
https://ift.tt/2Jz2Kz3
Regarding the Congruence Between 2 Circulating Tumor DNA Sequencing Assays
https://ift.tt/2L6IU3U
Regarding the Congruence Between 2 Circulating Tumor DNA Sequencing Assays
https://ift.tt/2JBET1L
Regarding the Congruence Between 2 Circulating Tumor DNA Sequencing Assays
https://ift.tt/2L9udgz
Monthly High-Dose Vitamin D Supplementation and Cancer Risk
https://ift.tt/2Lxhoc5
Regarding the Congruence Between 2 Circulating Tumor DNA Sequencing Assays
https://ift.tt/2L4UNHw
Transforming Growth Factor β Polymorphism C−509T and Radiation-Induced Fibrosis in Breast Cancer
https://ift.tt/2LtxlQq
Ethical Implications of Direct-to-Consumer Hereditary Cancer Tests
https://ift.tt/2L9ws3p
-
Publication date: September 2017 Source: Free Radical Biology and Medicine, Volume 110 Author(s): Lucía Fernández-del-Río, Anish Nag, Elen...
-
Abstract Noise pollution is a major factor of environmental complaints in many cities, which has significant impacts on human health. As a...
