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Industrial applications of ultrafiltration in the pharmaceutical biotechnology
In pharmaceutical biotechnology, ultrafiltration with diafiltration for recovery of fermentation products on an industrial scale is now the state-of-the-art technology. To optimise this process, DSS has developed two new concepts: (1) an optimised control system for constant permeate concentration even at varying feed streams and (2) continuous counter-current diafiltration to significantly reduce
Applications and challenges of membrane processes in wine production
The membrane market for the food and beverage industry of which the wine market has a significant share developed to the second largest market after municipal water treatment in Europe. The trend in the wine market towards larger volumes combined with an improved quality leads to a constant investment for upgrading and updating present product facilities. There are several interesting positions of
An Early Ordovician 40Ar-39Ar age for the ∼50 km Carswell impact structure, Canada
The formation age of the large (∼50 km) Carswell impact structure, Canada, has been a matter of debate ever since its discovery five decades ago, with proposed ages ranging from Mesoproterozoic to Early Cretaceous. Here, we present new 40Ar-39Ar data for aliquots of euhedral adularia, separated from vesicles in an impact melt rock from the central uplift of the structure. The analyses of the adula
Optimisation and integration of membrane processes in the beverage industry
Potential applications of membrane technology for the beverage industry will be presented by two case studies. The focus of the first case study is on the clarification and concentration of fruit juice. A novel combination of a centrifuge with ultrafiltration for the clarification will be discussed together with the combination of an evaporator combined with reverse osmosis for the concentration.
Membrane filtration in sweetener processing
Excellent survival and low complication rate in medium-term follow-up after arterial switch operation for complete transposition
Objective—To determine medium-term outcome after arterial switch operation for complete transposition in a population-based cohort.Design—Retrospective study of all 86 patients operated on at our institution from 1982 to 2000. Age at operation was 0-256 days (median 6 days); 28 (32%) had closure of a ventricular septal defect, 2 of whom had double outlet right ventricle. Additional surgery include
Osteopontin mediates murine transfusion-related acute lung injury through stimulation of pulmonary neutrophil accumulation.
Transfusion-related acute lung injury (TRALI) is one of the leading causes of transfusion-related fatalities and is characterized by the onset of acute respiratory distress within 6 hours of a blood transfusion. There are no specific therapies available and the pathogenesis remains unclear. Pre-existing inflammation is a risk factor for TRALI and neutrophils (PMNs) are considered to be the major p
Transfusion-associated circulatory overload and transfusion-related acute lung injury.
Transfusion-associated circulatory overload (TACO) and Transfusion-related acute lung injury (TRALI) are syndromes of acute respiratory distress which occur within 6 hours of blood transfusion. TACO and TRALI are the leading causes of transfusion-related fatalities and specific therapies are unavailable. Diagnostically, it remains very challenging to distinguish TACO and TRALI from underlying caus
Theoretical study of the gas phase reaction of methyl acetate with the hydroxyl radical: Structures, mechanisms, rates and temperature dependencies
UV and IR Absorption Cross-sections of HCHO, HCDO, and DCDO
UV (240-370 nm) and IR (3200-1500 cm-1) absorption cross-sections of HCHO, HCDO, and DCDO in abath gas of N2 at atmospheric pressure and 296 K are reported from simultaneous measurements in the twospectral regions. Cross-sections were placed on an absolute scale through quantitative conversion offormaldehyde to CO and HCOOH by titration with Br atoms, also monitored by FTIR. The integrated UVabsor
Performance of Ultrasound in the Diagnosis of Gout in a Multicenter Study : Comparison With Monosodium Urate Monohydrate Crystal Analysis as the Gold Standard
Objective: To examine the performance of ultrasound (US) for the diagnosis of gout using the presence of monosodium urate monohydrate (MSU) crystals as the gold standard. Methods: We analyzed data from the Study for Updated Gout Classification Criteria (SUGAR), a large, multicenter observational cross-sectional study of consecutive subjects with at least 1 swollen joint who conceivably may have go
Atmospheric deuterium fractionation: HCHO and HCDO yields in the CH2DO + O2 reaction
Atmospheric chemistry of trans-CF3CHCHCl: Kinetics of the gas-phase reactions with Cl atoms, OH radicals, and O3
Relative Tropospheric Photolysis Rates of Acetaldehyde and Formaldehyde Isotopologues Measured at the European Photoreactor Facility
The photolysis rates of HCHO, DCDO, CH3CHO, and CH 3CDO are studied by long-path FTIR spectroscopy in natural tropospheric conditions at the European Photoreactor Facility (EUPHORE) in Valencia, Spain. Average relative photolysis rates jHCHO/j DCDO = 3.15 ± 0.08 and jCH3CHO/jCH3CDO = 1.26 ± 0.03 are obtained from three days of experiments for each reaction in the period June 17 to July 7, 2006.
Kinetics of the gas‐phase reactions of chlorine atoms with CH²F², CH³CCl³, and CF³CFH² over the temperature range 253–553 K
Relative rate techniques were used to study the title reactions in 930–1200 mbar of N2 diluent. The reaction rate coefficients measured in the present work are summarized by the expressions k(Cl + CH2F2) = 1.19 × 10−17 T2 exp(−1023/T) cm3 molecule−1 s−1 (253–553 K), k(Cl + CH3CCl3) = 2.41 × 10−12 exp(−1630/T) cm3 molecule−1 s−1 (253–313 K), and k(Cl + CF3CFH2) = 1.27 × 10−12 exp(−2019/T) cm3 molec
Atmospheric chemistry of cis-CF3CHCHF: Kinetics of reactions with OH radicals and O3 and products of OH radical initiated oxidation
Long path length FTIR-smog chamber techniques were used to measure k(OH + cis-CF3CHCHF) = (1.20 ± 0.14) × 10−12 and k(O3 + cis-CF3CHCHF) = (1.65 ± 0.16) × 10−21 cm3 molecule −1 s−1 in 700 Torr of N2/O2 diluent at 296 K. The OH initiated oxidation of cis-CF3CHCHF gives CF3CHO and HCOF in molar yields which are indistinguishable from 100%. The atmospheric lifetime of cis-CF3CHCHF is determined by it
Towards a Minor Urbanism : Thinking Community without Unity in Recent Makings of Public Space
I DEN DIVERSIFIERADE STADEN, hur kan vi planera och bygga platser för gemenskap som inte är beroende av social och kulturell likhet? I en tid då offentliga samtal förs kring segregation och utan-förskapsområden, aktualiseras frågor kring den fysiska miljöns betydelse för människors lika livsvillkor. I avsaknad av mer genomgripande lösningar kring boendesegregation har de offen-tliga rummen hamnat HOW CAN WE PLAN AND DESIGN FOR community in diverse urban situations? In response to segregation and social fragmentation, public space is increasingly being conceived of as a vehicle for fostering openness towards differences, both in planning practice and theory. Drawing on two recent public space projects – Superkilen in Copenhagen, Denmark, and Jubileumsparken in Gothenburg, Sweden – this thes
Experimental investigation of picosecond dynamics following interactions between laser accelerated protons and water
Supersonic jets of hydrogen and helium for laser wakefield acceleration
The properties of laser wakefield accelerated electrons in supersonic gas flows of hydrogen and helium are investigated. At identical backing pressure, we find that electron beams emerging from helium show large variations in their spectral and spatial distributions, whereas electron beams accelerated in hydrogen plasmas show a higher degree of reproducibility. In an experimental investigation of