bluuebunny/crossref_metadata_2025_split huggingface dataset:
Deterioration of Blood Pressure Control After Discontinuation of a Physician‐Pharmacist Collaborative Intervention
Authors: Carter Barry L. , Doucette William R. , Franciscus Carrie L. , Ardery Gail , Kluesner Karen M. , Chrischilles Elizabeth A. 
Published: February 2010

Study Objective. To assess blood pressure control after discontinuation of a physician‐pharmacist collaborative intervention.Design. Comparative analysis of data of the patients who received the intervention versus a control group from a prospective, cluster‐randomized, 9‐ month efficacy trial and the same patients' data 18 and 27 months after completion of the trial, abstracted from their medical records.Setting. Five primary care medical offices operated by a university health system.Patients. One hundred four patients with hypertension; 65 were in the intervention group, and 39 were in the control group.Measurements and Main Results. In the prospective study, patients were randomized to receive a physician‐pharmacist collaborative intervention to improve blood pressure control or to the control group. Systolic and diastolic blood pressures were measured by a research nurse at baseline and at the end of the study (9 mo later). In the current study, data were abstracted for blood pressure and blood pressure control at 18 and 27 months (9 and 18 mo, respectively, after discontinuation of the study). At baseline, mean ± SD systolic blood pressure was 152.5 ± 9.5 and 150.1 ± 9.6 mm Hg in the intervention and control groups, respectively (p=0.22). At 9 months, systolic blood pressure decreased to 124.5 ± 10.7 and 132.0 ± 15.1 mm Hg (p=0.0038 between groups), and blood pressure was controlled in 78.5% and 48.7% (p=0.0017) of patients in the intervention and control groups, respectively: By 18 months, systolic blood pressure had deteriorated to 131.0 ± 12.2 and 143.3 ± 17.5 mm Hg (p<0.001), and blood pressure control rates decreased to 53.9% and 30.8% (p=0.02). By 27 months, systolic blood pressure was 131.3 ± 13.0 and 141.2 ± 15.8 mm Hg (p=0.0008), and blood pressure control was 55.4% and 35.9% (p=0.05).Conclusion. A sustained positive effect on blood pressure control was noted up to 18 months after discontinuation of a physician‐pharmacist collaborative intervention, when compared with a control group. Blood pressure control did deteriorate at a similar rate in both the intervention and control groups, but the percentage of patients with controlled blood pressure remained significantly higher in the intervention group. These results suggest that continued interventions by pharmacists may be necessary to maintain high rates of blood pressure control, especially in those patients whose blood pressure begins to increase.
Optimal partitioning theory revisited: Nonstructural carbohydrates dominate root mass responses to nitrogen
Authors: Kobe Richard K. , Iyer Meera , Walters Michael B. 
Published: February 2010

Under optimal partitioning theory (OPT), plants preferentially allocate biomass to acquire the resource that most limits growth. Within this framework, higher root mass under low nutrients is often assumed to reflect an allocation response to build more absorptive surface. However, higher root mass also could result from increased storage of total nonstructural carbohydrates (TNC) without an increase in non‐storage mass or root surface area. To test the relative contributions of TNC and non‐storage mass as components of root mass responses to resources, we grew seedlings of seven northern hardwood tree species (black, red, and white oak, sugar and red maple, American beech, and black cherry) in a factorial light × nitrogen (N) greenhouse experiment. Because root mass is a coarse metric of absorptive surface, we also examined treatment effects on fine‐root surface area (FRSA).Consistent with OPT, total root mass as a proportion of whole‐plant mass generally was greater in low vs. high N. However, changes in root mass were influenced by TNC mass in all seven species and were especially strong in the three oak species. In contrast, non‐storage mass contributed to increased total root mass under low N in three of the seven species. Root morphology also responded, with higher fine‐root surface area (normalized to root mass) under low vs. high N in four species. Although biomass partitioning responses to resources were consistent with OPT, our results challenge the implicit assumption that increases in root mass under low nutrient levels primarily reflect allocation shifts to build more root surface area. Rather, root responses to low N included increases in: TNC, non‐storage mass and fine‐root surface area, with increases in TNC being the largest and most consistent of these responses. The greatest TNC accumulation occurred when C was abundant relative to N. Total nonstructural carbohydrates storage could provide seedlings a carbon buffer when respiratory or growth demands are not synchronized with photosynthesis, flexibility in responding to uncertain and fluctuating abiotic and biotic conditions, and increased access to soil resources by providing an energy source for mycorrhizae, decomposers in the rhizosphere, or root uptake of nutrients.
Managed Pressure Drilling Brings Added Value to Production Casings Cementing Operations Increasing Success Rates and Quality in HPHT Fractured Narrow Window Wells
Authors: Beltran Juan Carlos , Lupo Corrado , Gallo Fernando , Duno Hermogenes , Medina Leiro 
Published: February 2010

Abstract
The oilfields in study are important assets for the National Oil Company and represent 14% of the total oil production of the country. Two wide different and drastically challenging scenarios can be found: HPHT wells with a narrow mud weight window; and highly depleted wells in fractured carbonates. In both cases, the cementing job in production casings is historically classified as very difficult as a direct consequence of high frictional pressure losses due to the small annulus and deep wells configuration which causes loss circulation problems. A close analysis of the offset wells identified the use of MPD as a possible partial solution to mitigate the usual loss circulation scenario.
This document describes the successful implementation of the MPD technique as a supplemental aid for cementing jobs, eliminating cement losses, avoiding formation damage, reducing mud losses by also offering additional safety to this kind of operations. In the last two years MPD has been used in a number of cementing jobs in HPHT wells and also in low pressure wells; with equivalent circulating densities as high as 1.65 sg. in both single phase and multiphase drilling fluids MPD applications as low as 0.29 specific gravity.
Paper will also detail recommended operational procedures and recommended practices to integrate the MPD technique along with conventional cementing operations. The annulus between the 5” liner and the 7” liner 38# is very small, this condition associated with a narrow mud weight window, makes quite impossible to do a successful cementing job without the aid of the MPD technique.
First Under-Balanced Drilling Experience in AGOCO Sarir Field
Authors: Musbah Biltayib , Elhemry M. , Rahuma Khulud M. 
Published: February 2010

Abstract
AGOCO is one of Libyan NOC affiliated companies; decide to pioneer the introduction of a new way of drilling horizontal wells in the Sarir C – North field. As one of the conclusions from the rock strength and wellbore stability undertaken on C- North core was that in order to maintain wellbore stability at such low reservoir pressure, any horizontal drilling in member 5-AA must be undertaken using controlled pressure drilling methods that will require an Under-balance drilling Unit. The main objectives was to drill the horizontal reservoir section to TD at 10767 ft eliminating or minimizing lost circulation where no drilling time would be lost due to cure losses, also to reduce the formation damage. The C-349 H well was the first UBD horizontal well drilled by AGOCO. The paper discusses the objectives, planning, and the performance of horizontal UBD well as the first well drilled by AGOCO.
Juvenile thyroid malignancy
Authors: Parelkar Sandesh , Joshi Milind 
Published: February 2010

AbstractThyroid malignancy is an uncommon tumor of the pediatric population. Patients can present with asymptomatic thyroid nodule and it requires thorough work up to rule out the malignancy. Radiological and pathological procedures are a standard part of the management. A 10-year-old girl had asymptomatic thyroid nodule; the cytological examination and the frozen section and final histology of the nodule was different each time. The girl had to undergo total thyroidectomy on the basis of histology of the nodule which was well differentiated papillary carcinoma of thyroid and is under regular follow-up for last two years on thyroid supplementation.
Inhibition of Aluminum Alloy 2024 Corrosion by Vanadates: An In Situ Atomic Force Microscopy Scratching Investigation
Authors: Iannuzzi M. , Frankel G. S. 
Published: February 2010

Abstract
The morphology and kinetics of the localized corrosion of aluminum alloy (AA)2024-T3 (UNS A92024) at the open-circuit potential were investigated by in situ atomic force microscopy (AFM) scratching. The addition of metavanadate to chloride solutions resulted in outstanding corrosion inhibition. Samples exposed to 0.1 M sodium chloride (NaCl) with no inhibitor developed a trench-like attack at the periphery of large Al-Cu-Fe-Mn-(Si) intermetallic phases. The addition of dilute metavanadate markedly reduced the kinetics of the attack. In addition, most S-phase particles remained free of attack. Higher concentrations of metavanadate increased protection even further so that only high AFM tip forces could induce pitting corrosion. Corrosion attack was immediately observed when AA2024-T3 samples were exposed to chloride solutions containing orange decavanadates. The attack nucleated on the exposed surface but not under the AFM tip. The attack grew continuously, accompanied by gas evolution and formation of corrosion products. Optical inspection after the test indicated severe corrosion damage, confirming an overall poor performance of orange decavanadate solutions as corrosion inhibitors.
Liquid-Metal Embrittlement of Type 316L Stainless Steel by Gallium as Measured by Elastic-Plastic Fracture Mechanics
Authors: Kolman D. G. , Chavarria R. 
Published: February 2010

Abstract
In order to bound failure of austenitic stainless steel storage containers housing Ga-containing compounds, the liquid-metal embrittlement of Type 316L (UNS S31603) stainless steel (SS) by Ga was investigated. Type 316L SS compact tension specimens were exposed to liquid Ga using a depassivation technique to wet the specimen. Linear elastic and elastic-plastic fracture mechanics methods were used to compare the fatigue and fracture behavior. Mild liquid-metal embrittlement was observed, as indicated by increased fatigue crack growth rate, decreased number of fatigue cycles to failure, decreased crack initiation resistance, and increased crack growth rate. Stable cracking was observed for all test conditions. A small amount of intergranular cracking was observed following Ga exposure. No effect of test temperature on embrittlement was observed over the small temperature range examined (35°C to 75°C). Decreasing crosshead displacement rate promoted Ga embrittlement. Based on fractography, profilometry, and mechanics, it appears that both adsorption-induced decohesion and adsorption-enhanced plasticity mechanisms are operative in the Type 316L SS-Ga system.
Corrosion Behavior of Alloy 22 and Ti Grade 7 in a Nuclear Waste Repository Environment
Authors: Hua F. , Gordon G. 
Published: February 2010

Abstract
Alloy 22 (UNS N06022) and Ti Grade 7 (UNS R52400) are the current corrosion-resistant materials of choice for fabricating the waste package outer barrier and the drip shield, respectively, for the proposed high-level nuclear waste repository at Yucca Mountain. In this work, the general and crevice corrosion behavior of annealed and welded Alloy 22 and Ti Grade 7 exposed in basic saturated water (BSW-12) for four and eight weeks at 60°C to 105°C were evaluated using the ASTM G78 method combined with surface analysis and statistical analysis of corrosion rate. The general corrosion rates for Alloy 22 and Ti Grade 7 were found to increase linearly with temperature but decrease with the exposure time. The mean corrosion rate was found to be 0.003 mpy (0.075 μm/y) at 60°C and 0.010 mpy (0.25μm/y) at 105°C for Alloy 22 and 0.008 mpy (0.20 μm/y) at 60°C and 0.022 mpy (0.56 μm/y) at 105°C for Ti Grade 7. No significant difference in corrosion behavior between the annealed and welded materials was observed. For both materials the surface imperfections inherited from materials processing did not seem to deteriorate the excellent corrosion resistance of the materials but might serve as the “traps” for corrosion products. The apparent activation energies for the temperature dependence of corrosion rates of Ti Grade 7 and Alloy 22 in BSW-12 environment were obtained as 25.3 (±5.5) KJ/mol and 23.7 (±4.5) KJ/mol, respectively. Although none of the materials was found susceptible to crevice corrosion under the test conditions, to conclude that these materials are immune to crevice corrosion in BSW-12 would require longer-term testing.
Effect of Microalloy Elements on Corrosion Resistance of High-Chromium-Containing Ferritic Stainless Steels in Chloride Solutions
Authors: Kim H. , Lee Y-D. 
Published: February 2010

Abstract
The effects of inclusions on corrosion resistance of high-Cr-containing ferritic steels were studied using electrochemical tests (anodic polarization and electrochemical noise [EN]) and a ferric chloride (FeCl3) test in chloride solution. For this purpose, the inclusion type and size in the matrix was controlled by the selective addition of alloying elements, their contents, and pickling treatment. Large inclusions such as titanium nitride (TiN), though chemically stable, caused surface cracks at the inclusion/matrix interface during mechanical treatments and decreased pitting corrosion resistance. Soluble inclusions located at the interface were preferentially attacked to form crevices even if the inclusions were as small as a submicron. Meanwhile, submicron inclusions such as Nb, C, or N did not affect pitting corrosion resistance. Unlike the chemical compositions and shape of inclusion, the surface area covered by inclusions did not affect pitting corrosion resistance. Hence, the main factor affecting corrosion resistance was the presence of a crevice, whether it was formed by dissolution or mechanical damage, and not the number of inclusions. EN testing revealed that the experimental alloys deoxidized by Si were more resistant to initial pitting corrosion resistance than those deoxidized by Al, though many steel manufacturers deoxidize stainless steels by Al. The discrepancy was attributed to the difference of the chemical stability and the feasability of crack formation depending on inclusion.
Predicting Sulfidic and Naphthenic Acid Corrosion
Authors: Hau J. 
Published: February 2010

Abstract
This paper reviews the factors that are hindering the development of models to predict corrosion due to sulfur compounds, naphthenic acids, or both, acting simultaneously on steels within the temperature range typically from 230°C to 400°C. These factors are identified as data scattering that do not distribute normally, variables or factors that do not exert their influence in a gradual manner but as a threshold behavior, and the interactions between the factors of sulfidic and naphthenic acid corrosion; exposure time, temperature, and velocity (shear stress); and the chromium and molybdenum content of the steels (Si content is not discussed). Not dealing with the interactions is probably the largest obstacle, followed by data scattering.
Two-Electrode Electrochemical Impedance Sensor: Part 2—Impedance Measurement and Simulation of Coatings on Nonmetal Substrates
Authors: Qi X. , Hinderliter B. , Gelling V. J. 
Published: February 2010

Abstract
Electrochemical impedance spectroscopy (EIS) has been studied extensively as a quantitative technique for evaluating protective coatings, which degrade unavoidably, regardless of their substrate type. However, most EIS studies focus on coatings on metal substrates. Consequently, on nonmetal substrates, coating evaluation is still lacking a quantitative method. Examples of the coatings on nonmetal substrates include not only those on nonconductive substrates such as plastics and composites but also the top layer of multilayer coatings on metal substrate. Here, with a two-cell EIS (TCEIS) configuration, EIS techniques are made available for evaluating coatings on nonconductive substrates, which is a progress toward future quantitative evaluation of these coatings. To test the feasibility of the TCEIS, impedance measurements were carried out on two different coatings on various non-metal and metal (for comparison) substrates. Measurements were successful on several nonmetal substrates and all the metal substrates. A simplified two-dimensional finite element analysis (FEA) model was used to assist the interpretation of the results and study the effects on the TCEIS measurements from the relative size and position of a coating defect and the two cells of TCEIS.
Relationship of work injury severity to family member hospitalization
Authors: Asfaw Abay G. , Bushnell P. Timothy , Ray Tapas K. 
Published: February 2010

AbstractBackgroundWorking while under stress due to a family health event may result in injuries of greater severity. Work leave might mitigate such consequences.Data and MethodsWorkers' compensation data for 33,817 injured workers and inpatient medical data for 76,077 members of their families were extracted from the 2002–2005 Thomson Reuters Medstat MarketScan Health and Productivity Management (HPM) and Commercial Claims and Encounter (CCE) datasets. Using a probit model, the impact of family hospitalization on the probability that a subsequent injury would be severe (above average indemnity costs) was estimated, adjusting for age, sex, hourly versus salaried status, industry sector, state, and family size.ResultsFamily hospitalization within 15 days before injury increased the likelihood that the injury would be severe (from 12.5% to 21.5%) and was associated with 40% higher indemnity costs and 50% higher medical costs. Hospitalizations over 30 days before injury had no impact.ConclusionThe observed higher severity of work injuries following family hospitalizations suggests additional analyses may find higher injury rates as well, and that timely family leaves might help prevent severe workplace injuries. Am. J. Ind. Med. 53:506–513, 2010. © 2010 Wiley‐Liss, Inc.
Informal social status among coworkers and risk of work‐related injury among nurse aides in long‐term care
Authors: Myers Douglas J. , Lipscomb Hester J. 
Published: February 2010

AbstractBackgroundA social network measure was used to explore whether one's rank in an informal social hierarchy of nurse aides employed in a single long‐term care facility was associated with risk of work‐related injury.MethodsSix months of administrative staff schedule data and self‐reported injury records were examined. Using survey data, social status rank in the informal hierarchy for each aide was operationalized as the number of coworkers who would approach the aide for advice about work‐related matters. Conditional logistic regression was used to model the effect of social status on injury risk; cases were matched to controls consisting of coworkers present on the floor, shift, and date of the injury event. This allowed for a comparison of social status rank within social groups among workers with the same job title.ResultsInjury incidence rates decreased across tertiles of social status rank scores. A non‐significant drop in injury risk in the highest tertile of social status was observed (adjusted OR = 0.24 95% CI [0.05, 1.32]).ConclusionFindings of this exploratory study were internally consistent and support a theoretical framework suggesting that patterns of social relations between individuals based on informal social status in the workplace may contribute to differences in work‐related injury risk among individuals with the same job title. Am. J. Ind. Med. 53:514–523, 2010. © 2010 Wiley‐Liss, Inc.
Fatigue at sea in Swedish shipping—a field study
Authors: Lützhöft Margareta , Dahlgren Anna , Kircher Albert , Thorslund Birgitta , Gillberg Mats 
Published: February 2010

AbstractBackgroundToday many merchant ships sail with only two nautical officers, working a shift schedule of 6 hr on and 6 hr off. There are concerns that such a shift schedule is related to fatigue. However, little data exist from onboard studies of seafarers.MethodsData were collected on board 13 ships. Fifteen participants worked on a 6‐on, 6‐off watch system and another 15 on a 4‐on, 8‐off watch system. Electrooculography, actigraphy, diaries, and reaction time tests were used to measure the effects of shift system on fatigue and sleep.Results and ConclusionsSleepiness was higher during the night shift in the 6‐on, 6‐off system. Moreover, sleepiness increased more during the watch in the 6‐on, 6‐off system compared to the 4‐on, 8‐off system. There was a trend toward shorter sleep episodes in the 6‐on, 6‐off system and sleep was more often split into two episodes. Am. J. Ind. Med. 53:733–740, 2010. © 2010 Wiley‐Liss, Inc.
Characterization of L‐plastin interaction with beta integrin and its regulation by micro‐calpain
Authors: Le Goff E. , Vallentin A. , Harmand P‐O. , Aldrian‐Herrada G. , Rebière B. , Roy C. , Benyamin Y. , Lebart M‐C. 
Published: February 2010

AbstractRecent evidences suggest that plastin/fimbrin is more than a simple actin cross‐linking molecule. In this context and based on the fact that other members of the same family interact with transmembrane proteins, such as integrins, we have investigated a possible interaction between L‐plastin and integrins. By combining coimmunoprecipitation of endogenous proteins and in vitro techniques based on solid phase and solution assays, we demonstrate that L‐plastin is an additional binding partner for the β‐chain of integrin and confirmed that both proteins display some colocalization. We then show that L‐plastin binds to the cytoplasmic domain of β1 integrin and to β1 and β2 peptides. Using recombinant L‐plastin domains, we demonstrate that the integrin‐binding sites are not located in NH2 terminal part of L‐plastin but rather in the two actin‐binding domains. Using pull‐down, cross‐linking experiments, and enzyme‐linked immunosorbent assay, we show that the L‐plastin/integrin complex is regulated by μ‐calpain cleavage and is not directly dissociated by calcium. Indeed, despite the ability of calpain to cleave both proteins, only the cleavage of β integrin hindered the formation of the L‐plastin/integrin complex. We discuss these results in the light of the three‐dimensional structure of the actin‐binding domains of L‐plastin. © 2010 Wiley‐Liss, Inc.