bluuebunny/crossref_metadata_2025_split huggingface dataset:
Large magneto‐optic Kerr effect on double thin Mn/Sb films
Authors: Attaran‐Kakhki Ebrahim 
Published: August 2006

AbstractThe magneto‐optic effects are known phenomena on magnetic media; these effects could be used in magneto‐optics storages and switches. Recently; these effect are used in inducing the spintronic as well. In the present work we have considered the Kerr and Faraday effects on double evaporated Mn/Sb thin films. We evaporated a 100 nm Sb film on a cleaned glass substrate and then a 100 nm Mn film on top of the Sb layer. The prepared double film has been annealed in vacuum at about 150 °C for 5 hours. Then the magnet‐optic hysteresis loop of film has been plotted. From the hysteresis loop the optical rotation was calculated. The measurement shows an optical rotation up to one degree which is quit reasonable for this media. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Magnetic properties of Fe‐(Nd, Sm)‐B amorphous alloys
Authors: Hassanain N. , Lassri H. , Berrada A. , Krishnan R. 
Published: August 2006

AbstractThe magnetization behaviour of amorphous alloys Fe80–xRExB20 (RE = Nd, Sm) with 0 ≤ x ≤ 16, prepared by melt‐spinning technique. The effect of rare earth substitution on the magnetic properties (Tc, M 0, Hc …) of amorphous alloy has been investigated. Using Random Magnetic Anisotropy Model (RMA), we have analysed our results and obtained some fundamental parameters. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Pb substitution effect on the normal and superconductivity states transport of polycrystalline MgB2
Authors: Zouaoui M. , Annabi M. , Ben Azzouz F. , Ben Salem M. 
Published: August 2006

AbstractA series of samples of Mg1–xPbxB2 were synthesized by the conventional solid state reaction method. Its temperature dependence of resistivity was studied from the zero resistivity temperature Tc up to 300 K. In order to more understand the main reason of the decreases of Tc, we analyse the resistivity versus temperature data in the normal state using Bloch‐Grüneisen formula. The Debye temperature, θD, has been extracted from the fits. θD is seen to decrease with the lead substitution from 1280 K to 835 K. Using θD and Tc, the electron‐phonon interaction parameter λ, has been given by McMillan equation. The values of λ increase from 0.70 to 0.84 respectively for x = 0% and x = 1% sample. The decrease in Tc is argued mainly by the decrease in the density of states at the Fermi level N(EF) with Pb concentration than the decrease in θD. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
The effect of sintering temperature on the weak link behavior of Bi‐2223 superconductors
Authors: Kameli P. , Salamati H. , Eslami M. , Akhavan M. 
Published: August 2006

AbstractWe have studied the effect of sintering temperature on the weak link behavior of polycrystalline Bi2223 superconductors with different intergranular coupling using the XRD, electrical resistivity and AC susceptibility techniques. The XRD results show that by increasing sintering temperature up to 865 °C the Bi2212 phase fraction decrease. It was found that the Bi2212 phase on the grain boundaries is likely to play the role of weak links and consequently reduces the intergranular critical current densities. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Pulmonary Nodule Resection During Lung Volume Reduction Surgery
Authors: Allen Gloria M. , DeRose Joseph J. 
Published: August 2006

ABSTRACTLung volume reduction surgery (LVRS) and concomitant pulmonary nodule resection can improve the respiratory function of and remove malignant lesions in patients with chronic obstructive pulmonary disease and lung cancer. Previously, using standard selection criteria, some patients with emphysema who also had lung nodules were denied surgery because of the severity of their pulmonary dysfunction. In this article, the authors report improved pulmonary function in 11 patients with severe emphysema who underwent combined LVRS and nodule resection. AORN J 66 (Nov 1997)808‐818.
An Alcohol and Drug Education Program for Nurses
Authors: Markey Bernadine T. , Stone Joan B. 
Published: August 2006

ABSTRACTAlcohol and drug use and abuse present serious problems for health care professionals, both as clinicians and abusers. These topics, however, have not been addressed adequately in nursing curricula. Nurses need to know the effects that alcohol and drug use and abuse have on individuals, families, and society. In this article, the authors outline the framework for a course or presentation that reviews the problems and applies the nursing process to the issues. The course can be adapted to meet the needs of nurses in any discipline, including the perioperative area, as well as for other health care providers and community groups. Course content and teaching strategies are included.AORN J66 (Nov 1997) 845‐853.
Self‐Efficacy Enhanced Preoperative Instruction
Authors: Oetker‐Black S. , Teeters D. , Cukr P. , Rininger S. 
Published: August 2006

ABSTRACTPerioperative nurses traditionally have helped patients cope with the adversities of surgery through preoperative instruction. The authors conducted a study to determine whether an efficacy‐enhancing preoperative teaching protocol was effective in increasing preoperative self‐efficacy in patients scheduled to undergo laparoscopic cholecystectomy procedures with general anesthesia. The subjects were 60 surgical patients in a 156‐bed community hospital located in the midwestern United States. Analysis of covariance indicated there were no significant differences between groups after controlling for preoperative self‐efficacy. Further research is needed to determine whether an efficacy‐enhancing teaching protocol can improve selected short‐ and long‐term outcomes in surgical patients. AORN J 66 (Nov 1997) 854‐864.
Development and Implementation of a Perioperative Assistant Training Program
Authors: Messina Jeanette 
Published: August 2006

ABSTRACTDue to health care reform, many institutions have had to examine the way they deliver patient care. This article describes how, in response to this challenge, an interdisciplinary OR team at North Shore University Hospital, Manhasset, NY, developed and implemented the role of perioperative assistant in the OR. The authors describe the education curriculum for program completion, along with specific results. The program's difficulties and challenges are described, as well as what was learned as the program proceeded. The authors stress that program implementation depended on the efforts of all staff members, their willingness to help develop the perioperative assistant role, and their ability to function as a team. AORN J 66 (Nov 1997) 890‐904.
Powered Functional Endoscopic Sinus Surgery
Authors: Krouse H.J. , Parker C.M. , Purcell R. , Krouse J.H. , Christmas D.A. 
Published: August 2006

ABSTRACTThe use of powered instrumentation in functional endoscopic sinus surgery has been a revolutionary development in the surgical treatment of chronic sinusitis. Several studies have demonstrated the safety, efficacy, and ease of use of this new technique. To provide support and coordinate the surgical process in powered functional endoscopic sinus surgery procedures, perioperative nurses must have an appreciation for its specific equipment handling and for appropriate patient care. This article describes a specific protocol that perioperative nurses can use to facilitate efficient and safe surgical environments for patients who undergo powered endoscopic sinus surgery procedures. AORN J 66 (Sept 1997) 405–414.
Computer‐assisted Endoscopic Sinus Surgery
Authors: Petroff Paula F. 
Published: August 2006

ABSTRACTUntil the development and use of computer‐assisted localization technology in endoscopic sinus surgery procedures, surgical risks to patients undergoing endoscopic sinus surgery procedures included blindness, diplopia, or partial vision loss and damage to the cribriform plates and posterior roofs of their ethmoidal sinuses. Successful patient outcomes were dependent on the ability of surgeons to visualize surgical sites directly, to correlate data from two‐dimensional computed tomography scans, and to apply these data to anatomic landmarks. Advances in computer‐imaging modalities and computer‐assisted localization technology have eliminated many of the surgical problems and patient complications associated with early endoscopic sinus surgery procedures and have caused fundamental changes in the way otorhinolaryngologists diagnose and treat patients with sinus disease. AORN J 66 (Sept 1997) 416–425.
Stent‐Graft Placement Procedures for Descending Thoracic Aortic Aneurysms
Authors: Liston Sheilagh M. 
Published: August 2006

ABSTRACTDescending thoracic aortic aneurysms most often are caused by arteriosclerosis and appear most frequently in elderly males. These patients often are asymptomatic, but they may experience symptoms related to compression of adjacent thoracic structures, or they may present for treatment when their aneurysms rupture. Open surgical resections and repairs of descending thoracic aortic aneurysms are associated with bleeding, paraplegia, strokes, renal insufficiency, and the need for prolonged ventilatory support in the postoperative period. At Stanford (Calif) University Hospital, surgeons are placing endovascular stent‐grafts in patients with descending thoracic aortic aneurysms who meet specific anatomic selection criteria. This new treatment modality provides patients with a less invasive, less hazardous, and potentially less expensive alternative to open surgical resection and repair procedures. Preoperative teaching and skilled perioperative nursing care are essential for positive patient outcomes with stent‐graft treatment of descending thoracic aortic aneurysms. AORN J 66 (Sept 1997) 433–444.
An Orientation Program for Unlicensed Assistive Personnel
Authors: Nyberg Denise Bauer , Campbell Jamie L. 
Published: August 2006

ABSTRACTThe nursing profession has worked with unlicensed assistive personnel (UAP) for decades; however, with the budget cuts resulting from health care redesign, some health care providers have expressed apprehension about UAP roles (eg, nurse aides, orderlies, unit clerks). Staff members in the perioperative services department at Children's Hospital Medical Center, Cincinnati, have defined a UAP role that enhances the OR's efficiency in patient care and maintains the cost‐effective measures outlined in the facility's strategic goals. A key element in the success of this perioperative UAP role implementation has been the development of a competency‐based orientation program that helps UAP develop and maintain their specific skills. AORN J 66 (Sept 1997) 445–454.
An OR Nurse Internship Program that Focuses on Retention
Authors: Strauss Judy 
Published: August 2006

ABSTRACTToday's health care environment has pushed OR managers to reconsider the skill mix of staff members and to use more surgical technologists and unlicensed assistive personnel. Health care administrators want to decrease the RN:surgical technologist ratio in an effort to cut costs. This financial constraint and the unavailability of experienced OR nurses has created the problem of having enough trained nurses in the OR. One tactic that may prevent the available positions for RNs from being filled by unlicensed assistive personnel is to train more nurses. Training programs organized around optimal patient outcomes may be more cost‐effective than training focused on technical proficiency alone. This article describes retention strategies (ie, classroom study, OR training, work with preceptors) used in an OR nurse training program conducted at a southeastern teaching hospital. AORN J 66 (Sept 1996) 455–463.
Efficacy of Clean v Sterile Surgical Prep Kits
Authors: Pearce Barbara A. , Miller Lucy H. , Martin Mary A. , Roush Deborah L. 
Published: August 2006

ABSTRACTThe goal of preoperative skin preparation is to reduce the risk of postoperative wound infections. This study was designed to determine if a difference exists in the residual microbial flora on the skin of surgical patients who are prepped with clean versus sterile prep kits. The researchers randomly assigned 60 ambulatory surgery patients to two preoperative skin preparation groups (ie, clean prep kits, sterile prep kits) and obtained cultures of the patients' surgical sites at three different times (ie, before performing standard povidone‐iodine scrub‐and‐paint skin preps, 10 minutes after the completion of the skin preps, immediately after skin closure). They used repeated mixed factorial analyses of variance to compute the differences in residual microbial counts at the patients' surgical sites. There was no difference in the residual microbial skin flora in the patients prepped with clean or sterile skin prep kits. The study results have significant cost‐saving implications for health care facilities and surgical patients. AORN J 66 (Sept 1997) 464–470.
The Role of Advanced Practice Nurses in Surgical Services
Authors: Hylka Sharon Canty , Beschle Janice Cooper 
Published: August 2006

ABSTRACTMany of the changes in health care delivery systems have had detrimental effects on nurses; however, some of these same changes are providing opportunities for acute care advanced practice nurses. Advanced practice nurses ensure continuity of care, manage use of resources, and coordinate patient services, which often results in cost savings. This article describes how advanced practice nurses in the department of surgery at Memorial Health Care, Worcester, Mass, are caring for surgical patients with acute and chronic conditions. AORN J 66 (Sept 1997) 481–485.
Hospital Uses Team Approach to Improve Processes, Reduce Costs
Authors: Bell Marlene 
Published: August 2006

ABSTRACTThis article describes a group process and how it was used to reduce reprocessing turnover time and increase the availability of sterilized instruments. A team of staff members used the “Seven Steps to Quality” and an event‐related sterility maintenance program, thereby improving patient care and reducing costs. With a defined process, the team members' expertise, and clearly defined objectives and goals, the team was able to complete its work and implement a substantial change in a short amount of time. AORN J 68 (July 1998) 68–72.
Preoperative Anxiety in Women
Authors: Wiens Arlene G. 
Published: August 2006

ABSTRACTPreoperative anxiety and fear can have adverse effects on patients' perioperative experiences. This study emerged from a larger study in which the researcher examined the perioperative experiences of women. The purpose of this study was to further investigate and describe the nature of preoperative anxiety in female subjects. This article reviews the literature on this topic, discusses the results, and explores the implications of anxiety and fear on the perioperative experience. The author offers suggestions to improve nurses' assessment of preoperative fear and anxiety and ways to lessen such feelings in patients. AORN J 68 (July 1998) 74–88.
Characterization of Synthetic Hydroxyproline-Rich Proteoglycans with Arabinogalactan Protein and Extensin Motifs in Arabidopsis
Authors: Estévez José M. , Kieliszewski Marcia J. , Khitrov Natalie , Somerville Chris 
Published: August 2006

AbstractA series of gene constructs encoding synthetic glycomodule peptides with N-terminal signal sequences and C-terminal green fluorescent proteins were expressed in transgenic Arabidopsis (Arabidopsis thaliana) under the control of the 35S promoter. The synthetic glycomodule peptides were composed of repetitive proline-containing motifs that have been previously found to be substrates for prolyl hydroxylases and subsequent O-glycosylation of the hydroxyproline residues. All of the constructs were secreted in aerial tissues, but not in roots. The amount of hydroxylation and glycosylation of the various constructs varied depending on the tissue. Also, accumulation of the proteins exhibited a high degree of cell-type specificity within various tissues due to posttranscriptional effects. The observations reveal a high level of complexity in the synthesis, secretion, and turnover of the glycoproteins.
The Key Role of Chlorocatechol 1,2-Dioxygenase in Phytoremoval and Degradation of Catechol by Transgenic Arabidopsis
Authors: Liao Yang , Zhou Xiao , Yu Jin , Cao Yajun , Li Xian , Kuai Benke 
Published: August 2006

Abstract
Transgenic exploitation of bacterial degradative genes in plants has been considered a favorable strategy for degrading organic pollutants in the environment. The aromatic ring characteristic of these pollutants is mainly responsible for their recalcitrance to degradation. In this study, a Plesiomonas-derived chlorocatechol 1,2-dioxygenase (TfdC) gene (tfdC), capable of cleaving the aromatic ring, was introduced into Arabidopsis (Arabidopsis thaliana). Morphology and growth of transgenic plants are indistinguishable from those of wild-type plants. In contrast, they show significantly enhanced tolerances to catechol. Transgenic plants also exhibit strikingly higher capabilities of removing catechol from their media and high efficiencies of converting catechol to cis,cis-muconic acid. As far-less-than-calculated amounts of cis,cis-muconic acid were accumulated within the transgenic plants, existence of endogenous TfdD- and TfdE-like activities was postulated and, subsequently, putative orthologs of bacterial tfdD and tfdE were detected in Arabidopsis. However, no TfdC activity and no putative orthologs of either tfdC or tfdF were identified. This work indicates that the TfdC activity, conferred by tfdC in transgenic Arabidopsis, is a key requirement for phytoremoval and degradation of catechol, and also suggests that microbial degradative genes may be transgenically exploited in plants for bioremediation of aromatic pollutants in the environment.
Overexpression of theArabidopsisSyntaxin PEP12/SYP21 Inhibits Transport from the Prevacuolar Compartment to the Lytic Vacuole in Vivo
Authors: Foresti Ombretta , daSilva Luis L.P. , Denecke Jürgen 
Published: August 2006

AbstractGolgi-mediated transport to the lytic vacuole involves passage through the prevacuolar compartment (PVC), but little is known about how vacuolar proteins exit the PVC. We show that this last step is inhibited by overexpression of Arabidopsis thaliana syntaxin PEP12/SYP21, causing an accumulation of soluble and membrane cargo and the plant vacuolar sorting receptor BP80 in the PVC. Anterograde transport proceeds normally from the endoplasmic reticulum to the Golgi and the PVC, although export from the PVC appears to be compromised, affecting both anterograde membrane flow to the vacuole and the recycling route of BP80 to the Golgi. However, Golgi-mediated transport of soluble and membrane cargo toward the plasma membrane is not affected, but a soluble BP80 ligand is partially mis-sorted to the culture medium. We also observe clustering of individual PVC bodies that move together and possibly fuse with each other, forming enlarged compartments. We conclude that PEP12/SYP21 overexpression specifically inhibits export from the PVC without affecting the Golgi complex or compromising the secretory branch of the endomembrane system. The results provide a functional in vivo assay that confirms PEP12/SYP21 involvement in vacuolar sorting and indicates that excess of this syntaxin in the PVC can be detrimental for further transport from this organelle.
Studies on Some Aspects of Custard Apple Peroxidase
Authors: SASTRY L. V. L. , BHATIA B. S. , LAL GIRDHARI 
Published: August 2006

SUMMARYA purified peroxidase enzyme solution was prepared from custard apple pulp, and its characteristics studied. Its catalytic effect on oxidizing various aromatic amines and phenols was reported. Ascorbic acid oxidase is shown to be absent in the enzyme extract. The influence of temperature, pH, and concentrations of sulphur dioxide, ascorbic acid, sucrose, potassium cyanide, and hydrogen peroxide on the enzyme activity are indicated. The “PZ” value for custard apple pulp was found to be 0.06 on dry basis.
Chemical Changes in the Juice Vesicles of Granulated Valencia Oranges
Authors: SINCLAIR WALTON B. , JOLLIFFE VIRGIL A. 
Published: August 2006

SUMMARYGranulation is a disorder of the Valencia orange in which the juice vesicles go through certain definite morphological and chemical changes. The larger the fruit, the more likely are granulated juice vesicles. The juice vesicles increase in volume with the subsequent hydration of the cell contents, followed by the gel formation of the pectic substances. The pectic substances and their respective methoxyl contents increased with the severity of granulation. The soluble carbohydrates and organic acids decreased as the mineral constituents and pH of the juice increased. The alcohol‐insoluble fraction of the juice vesicles increased with the severity of granulation, and a highly significant correlation existed between the hardness of the juice vesicles and the alcohol‐insoluble solids content.
Dehydration in Model Systems: Cellulose and Calcium Pectinate
Authors: SHIMAZU FUMINAGA , STERLING CLARENCE 
Published: August 2006

SUMMARYCellulose, containing some resistant hemicelluloses, was prepared from the phloem of carrot tap‐roots, and a similar extraction procedure was used for cotton fibers. A calcium pectinate gel was also made, and all three materials were dehydrated at two different rates and stored for 6 months. Proportionate crystallinity was determined on the basis of differences in moisture content, water vapor sorption, X‐ray diffraction intensity, iodine adsorption, enzymatic digestibility, and density. In all cases, dehydration resulted in an increase in crystalline content of the samples, rapid dehydration seeming to produce somewhat greater crystallinity than slow dehydration. (Some spurious results with calcium pectinate are discussed.) Uniformly, all materials became more crystalline on standing, and the products of the two different drying rates attained virtually the same crystallinity values, per sample type, after 6 months. Calcium pectinate had the highest amorphous content, carrot cellulose the next highest, and cotton cellulose the lowest.
Biochemistry of Pork Muscle Structure. 1. Rate of Anaerobic Glycolysis and Temperature Change versus the Apparent Structure of Muscle Tissuea
Authors: BRISKEY E. J. , WISMER‐PEDERSEN J. 
Published: August 2006

SUMMARYContinuous recordings of pH and temperature changes, during postmortem chilling, were made on 20 Danish Landrace carcasses. The continuous recordings from these carcasses depicted at least four distinct types of post‐mortem pH patterns: 1) a slow gradual decrease to an ultimate pH of 5.7–6.3; 2) a gradual decrease to about 5.7 at 8 hr, with an ultimate pH of 5.3–5.7; 3) a relatively rapid decrease to about 5.5 at 3 hr, with an ultimate pH of 5.3–5.6; 4) a sharp, significant decrease to a pH of about 5.1 at 11/2 hr, and a subsequent elevation to 5.3–5.6. The first 3 types were acceptable in structure, color, and water retention, whereas type 4 represented pale, exudative tissue with soft, inferior structure. The violent nature of the post‐mortem changes in tissue with the type 4 pH pattern were discussed, as well as the possibility of a more rapid onset of rigor mortis in this tissue. Although the pH values of the pale, exudative tissue were elevated during chilling, it appeared that they remained generally lower, ultimately, than the normal tissue. On the basis of comparisons between muscles, it is suggested that in addition to chemical composition, the chilling rate of the individual muscle may also be an important factor in determining pH pattern and ultimate muscle structure.