bluuebunny/crossref_metadata_2025_split huggingface dataset:
Surface tension lowering substance in eustachian tube function
Authors: Hagan Warren E. 
Published: July 2007

AbstractDirect evidence is presented that establishes the existence of an Eusta‐chian tube surface tension lowering substance (S.T.L.S.) in the canine experimental model. The physiological role of this Eustachian tube S.T.L.S. is to facilitate middle ear ventilation by lowering the opening pressure needed to aerate the Eustachian tube and middle ear. While S.T.L.S. possesses characteristics similar to those of the pulmonary surfactant, experimental data suggest that it does not reduce the surface tension in the auditory conduit of the middle ear to the degree that the surfactant does in pulmonary system. Neither does Eustachian S.T.L.S. exhibit the physical characteristic of “hysteresis” that the alveolar surfactant demonstrates.The paper presents brief discussion of the physical phenomenon of surface tension as it exists in the Eustachian tube. Various methods of physical surface chemistry used in measuring the surface pressure of the canine Eustachian S.T.L.S. extract are discussed, including criticism of the indirect methodology of previous researchers in investigating the possibility of an Eustachian tube S.T.L.S. Direct methodology, utilizing the Langmuir Trough with Wilhelmy surface balance, was employed.S.T.L.S. is considered in its physiologic role in maintaining Eustachian tube patency. It is suggested that a decreased amount of Eustachian S.T.L.S. may be implicated in the pathophysiology of the serous acellular sterile middle ear transudate in serous otitis media. Finally, it is stressed that this preliminary work needs further histochemical and physiological investigation.
Nystagmus responses to water and air caloric stimulation in clinical populations
Authors: Suter Charles M. , Blanchard Cyrus L. , Cook‐Manokey Brenda E. 
Published: July 2007

AbstractThe nystagmus responses of two groups of patients referred for electronystagmography were compared to test for differences between air and water caloric stimulation. Responses from patients with spontaneous or positional nystagmus or who showed greater than 30% directional preponderance or excitability of labyrinth were removed from the data. The 30% C and 44% C water and the 24% C air produced equivalent responses. The 50% C air produced responses with slow component velocities greater than expected; however, the distributions of computed directional preponderance and excitability of labyrinth showed no differences between the air and water caloric stimulation.
Criteria for selection of patients undergoing paranasal sinus surgery
Authors: Eichel Berkley S. 
Published: July 2007

AbstractA three year study was begun in January 1971, during which time all patients with paranasal sinus problems were carefully studied in an effort to determine which patients were surgical candidates. A total of 756 patients were seen; 154 had sufficient disease to qualify for this study. A basic medical regimen was prescribed for all of these patients unless their problem seemed too emergent to delay surgery. This regimen utilized antibiotics and antihistamine‐decongestants followed by interval radiographic examinations. A total of 48 of the 154 patients eventually required a surgical procedure.Sixteen patients required immediate surgery and did not have interval radiographic examinations. The prime reason for immediate surgery was the suspicion of neoplasm or impending complications such as osteomyelitis of the frontal bone, the so‐called “complicated acute sinusitis.” Thirty‐two patients underwent a surgical procedure after a trial period of conservative medical management failed to significantly improve their status. The majority of these patients had obstructive nasal polyposis and sinusitis. Another major indication for sinus surgery was the persistence of a unilateral opaque antrum.Sixty‐eight patients treated conservatively improved sufficiently either clinically or radiographically to eliminate the need for initial surgical intervention. One of these patients later required surgery. Thirty‐eight patients did not come back for re‐examination and re‐X‐ray and were classified as lost to follow‐up.The majority of patients undergoing the pansinus operative procedure which includes a bilateral nasal polypectomy, bilateral intranasal eth‐moidectomy and bilateral nasal antral windows, were noted to have good to excellent results when seen and studied a minimum of one year following surgery. A lesser percentage of favorable results occurred in those patients undergoing a Caldwell‐Luc procedure, especially on a delayed basis. The need to study those cases requiring Caldwell‐Luc exploration, because of persistent radiographic opacification or sinus polyps with associated symptoms, is discussed. A trial period of medical management in the 154 cases ended up with only eight Caldwell‐Luc and two intranasal ethmoidectomy patients who did not gain therapeutic or diagnostic benefit from their operative procedures. The utilization of unidirectional or poly‐directional tomography will hopefully resolve this problem and eliminate the moderately high percentage of negative explorations.Many of the diagnostic terms used preoperatively were found to be inaccurate via surgical exploration. It is the contention of this study that more descriptive terms such as: bilateral obstructive nasal polyposis, antral choanal polyp, and a radiographic opacified maxillary sinus are more objective and meaningful, and would probably aid in the overall standardization and understanding of what constitutes the need for para‐nasal sinus surgery.
Clinical assessment of eustachian tube ventilatory function
Authors: Cohn Arnold M. 
Published: July 2007

AbstractThe persisting incidence of middle ear effusion subsequent to the advent of antibiotics and the development of a sophisticated microsurgical armamentarium and technique has been the continuing impetus to arrive at a method for evaluating eustachian tube function. The aspiration test developed by Flisberg, et al., has been thought to test most satisfactorily physiological tubal function by measuring the capability of the tube to equilibrate an induced negative pressure in the middle ear by deglutition.This technique was utilized to evaluate tubal function in 92 ears with tympanic membrane perforations. In 21 ears perforation was the result of trauma, recent but not acute. The remaining 71 ears have persistent perforations as a result of chronic otitis media; 18 ears were actively draining when they were tested; 53 ears were dry, without evidence of drainage, at the time of test.This investigation has shown that ears presenting dry perforations as a result of chronic otitis media demonstrate a continuum of function from full capability to reduce negative pressure to total inability to reduce such pressures; that no discernable difference in eustachian tube performance exists, however, among ears with quiescent perforations as a result of trauma or chronic otitis media; that active drainage manifesting an inflammatory mucosal process further severely compromises tubal ventila‐tory function by facilitating “locking” at high negative pressures; that age, while exerting some influence on the tube, in that adults show some increased capability for tubal function and some compromise in such function is present in childhood, that the influence of age is hardly striking; that tubes manifesting a total inability to reduce negative pressure do tend to be associated with ears with recurrent or refractory mucosal disease.However, this technique may also be challenged. It has been suggested that normal tubes should be capable of reducing negative pressure to within zero to ‐50 mm H2O. Other studies, however, have shown little correlation between middle ear pressure as measured by tympanometry and tubal function tested by this method. A disparity also exists in the high incidence of poor tubal function by this technique as compared to the success rates in tympanoplasty in existing large series; that while some investigators are able to demonstrate the tendency for poorer results in ears with poor tubal function testing, prediction of surgical success and failure is feasible in only a minority.It is the conclusion of this study that a negative result in testing for eustachian tube function is not a contraindication to tympanoplasty, and it is difficult to enthusiastically support this test as being capable of measuring the physiological normal of the tube or as a prognostic indicator to results in tympanoplasty.
Chronic otitis media and hearing loss in the eskimo population of canada
Authors: Baxter James D. 
Published: July 2007

AbstractChronic otitis media and hearing loss is a major health problem today in the Canadian Eskimo. The subject is reviewed and the findings of projects and a survey that have been carried out recently are discussed. A modality of treatment is proposed which is based upon the findings of the projects, the survey and other information that is available at the present time.
Elements of Cognitive Robotics (Elemente kognitiver Robotik)
Authors: Goerick Christian , Körner Edgar 
Published: July 2007

Summary
In this paper we present our research aiming at creating a cognitive humanoid. We describe our understanding of the core elements of a processing architecture for such kind of an artifact. After these conceptual considerations we present our research results in the areas of task and body oriented motion control as well as visually and behaviorally oriented learning.
LOLA – a Performance Enhanced Humanoid Robot (LOLA – ein leistungsgesteigerter humanoider Roboter)
Authors: Buschmann Thomas , Lohmeier Sebastian , Kühnlenz Kolja , Buss Martin , Ulbrich Heinz , Pfeiffer Friedrich 
Published: July 2007

Summary
Humanoid robots are perfectly suited for service applications, since their human-like shape allows them to easily access environments designed for humans. This paper presents the performance enhanced humanoid robot LOLA. The goal of the project is to realize fast, human-like and vision-guided walking. LOLA's hardware is characterized by lightweight construction, modular, multi-sensory joint design with brushless motors and an electronics architecture using decentralized joint controllers. Real-time walking control is realized by a hierarchical trajectory generation and control system. Hardware and control are designed using a comprehensive multibody model of the robot. LOLA is equipped with a novel multi-focal vision system with four cameras and 6 degrees-of-freedom. Multifocal situation-specific gaze control provides high perception quality, flexible reaction, and accurate localization and navigation in large and weakly structured environments.
Intrinsic Retinoic Acid Receptor α-Cyclin-Dependent Kinase-Activating Kinase Signaling Involves Coordination of the Restricted Proliferation and Granulocytic Differentiation of Human Hematopoietic Stem Cells
Authors: Luo Peihua , Wang Anxun , Payne Kimberly J. , Peng Hui , Wang Jian-guang , Parrish Yasmin K. , Rogerio Jaqueline W. , Triche Timothy J. , He Qiaojun , Wu Lingtao 
Published: July 2007

Abstract
Little is known about the mechanisms by which retinoic acid receptor α (RARα) mediates the effects of retinoic acid (RA) to coordinate granulocytic proliferation/differentiation (P/D) transition. Cyclin-dependent kinase-activating kinase (CAK) complex, whose activity in phosphorylation of RARα is determined by its targeting subunit ménage à trois 1 (MAT1), regulates G1 exit, a cell cycle stage when cells commonly commit to proliferation or to differentiation. We previously found that in myeloid leukemia cells, the lack of RA-induced RARα-CAK dissociation and MAT1 degradation suppresses cell differentiation by inhibiting CAK-dependent G1 exit and sustaining CAK hyperphosphorylation of RARα. This contrasts with our recent findings about the P/D transition in normal primitive hematopoietic cells, where MAT1 degradation proceeds intrinsically together with granulocytic development, in accord with dynamic expression of aldehyde dehydrogenases (ALDHs) 1A1 and 1B1, which catalyze RA synthesis. Blocking ALDH activity inhibits MAT1 degradation and granulocytic differentiation, whereas loss of RARα phosphorylation by CAK induces RA-target gene expression and granulocytic differentiation. These studies suggest that the subversion of RARα-CAK signaling during normal granulopoiesis is crucial to myeloid leukemogenesis and challenges the current paradigm that RA induces cell differentiation solely by transactivating target genes.
Disclosure of potential conflicts of interest is found at the end of this article.
Power System On‐Line Transient Stability Assessment
Authors: Chiang Hsiao‐Dong , Tada Yasuyuki , Li Hua 
Published: July 2007

AbstractThis article gives an overview of state‐of‐the‐art methodology and effective computational methods useful for on‐line TSA. In particular, the TEPCO‐BCU methodology will be presented in detail. The data requirements and output functions of on‐line TSA will be also described. TEPCO‐BCU has been evaluated on several practical power system models. The evaluation results indicate that TEPCO‐BCU works well with reliable transient stability assessment results and accurate energy margin calculations on several study power systems, including a 12,000‐bus test system.
Differential protein expression in the honey bee head after a bacterial challenge
Authors: Scharlaken Bieke , De Graaf Dirk C. , Memmi Samy , Devreese Bart , Van Beeumen Jozef , Jacobs Frans J. 
Published: July 2007

AbstractInsect immune proteins and peptides induced during bacterial infection are predominantly synthesized by the fat body or by haemocytes and released into the hemolymph. However, tissues other than the “immune‐related” ones are thought to play a role in bacteria‐induced responses. Here we report a proteomic study of honey bee heads designed to identify the proteins that are differentially expressed after bacterial challenge in a major body segment not directly involved in insect immunity. The list of identified proteins includes structural proteins, an olfactory protein, proteins involved in signal transduction, energy housekeeping, and stress responses, and also two major royal jelly proteins. This study revealed a number of bacteria‐induced responses in insect head tissue directly related to typical functions of the head, such as exocrine secretion, memory, and senses in general. Arch. Insect Biochem. Physiol. 65:223–237, 2007. © 2007 Wiley‐Liss, Inc.
Individual differences in reverse Hindsight bias: I never thought something like chernobyl would happen. Did I?
Authors: Verplanken Bas , Pieters Rik G. M. 
Published: July 2007

AbstractHindsight bias was studied in the context of the accident in the Chernobyl nuclear power plant, which took place on April 26th 1986. An individual difference factor which relates to the motivation to process information, need for cognition, was expected to moderate the occurrence of hindsight bias. Probability estimates of many casualties due to the use of nuclear power in The Netherlands were obtained from 212 individuals two months before the accident in Chernobyl. These estimates were compared with similar estimates made in hindsight by the same individuals five months after the accident. Loglinear Analyses reveal a systematic hindsight bias. However, the direction of the bias was contrary to expectations. In hindsight, individuals gave lower probabilities than they actually did two months before the Chernobyl accident. These results reveal a reverse hindsight bias. As hypothesized, need for cognition moderates hindsight bias: individuals low and medium in need for cognition express a systematic reverse hindsight bias, while individuals high in need for cognition do not. High need for cognition individuals also show higher literal consistency between the two measurements, which supports a memory explanation of the moderating effect of need for cognition.
Persistence of bilateral arterial ducts in pulmonary atresia despite confluent branch pulmonary arteries: Opportunity for two percutaneous therapeautic alternatives
Authors: Texter Karen , Shah Anjan , Carlson Karina , Dickerson Heather , McKenzie E.D. , Justino Henri 
Published: July 2007

AbstractWe present a case of a newborn infant with double inlet left ventricle, pulmonary atresia, confluent pulmonary arteries, and bilateral arterial ducts (AD), to discuss the therapeutic alternatives offered by interventional catheterization techniques in this anatomic arrangement. The infant initially underwent stenting of the right AD to stabilize pulmonary blood flow off of prostaglandin infusion. Three weeks later, she developed left pulmonary artery isolation upon closure of the left arterial duct. An additional stent was placed in the pulmonary artery confluence, restoring blood flow to the left lung and significantly improving her oxygen saturations. At 6 months of age she underwent her first surgical procedure, a successful bidirectional cavopulmonary anastomosis with removal of the left pulmonary artery stent and patch enlargement of the pulmonary artery confluence. She continues to do well in clinical follow‐up at 16 months of age. © 2007 Wiley‐Liss, Inc.
ChemInform Abstract: Pentacoordinated Molecules. Part 83. Enhanced Reactivity of Pentacoordinated Silicon Species. An ab initio Approach
Authors: DEITERS J. A. , HOLMES R. R. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Fused and Linked Deltahedral Clusters in the Chemistry of the Group 13 Elements.
Authors: BURDETT J. K. , CANADELL E. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: X‐Ray Powder Diffraction Study of Layer Compounds. The Crystal Structure of α‐Ti(HPO4)2×H2O and a Proposed Structure for . gamma.‐Ti(H2PO4)(PO4)×2 H2O.
Authors: CHRISTENSEN A. N. , ANDERSEN E. K. , ANDERSEN I. G. K. , ALBERTI G. , NIELSEN M. , LEHMANN M. S. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The Influence of Ce on the Activity of Pb in ((1‐x1‐x2)Cu + x1Pb + x2Ce) (l) for x1, x2 ≪ 1 at the temperature 1473 K
Authors: POMIANEK T. , MIDURA J. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Electrochemical Calorimetry of D2O Electrolysis Using a Palladium Cathode ‐ An Undivided, Open Cell System.
Authors: OYAMA N. , OHSAKA T. , HATOZAKI O. , KURASAWA Y. , YAMAMOTO N. , KASAHARA S. , OHTA N. , IMAI Y. , OYAMA Y. , NAKAMURA T. , SHIBATA T. , IMAMURA M. , UWAMINO Y. , SHIBATA S. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Kinetics of the BrO + BrO Reaction.
Authors: TURNIPSEED A. A. , BIRKS J. W. , CALVERT J. G. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Oxidation Kinetics of Zirconium Carbide at Relatively Low Temperatures.
Authors: SHIMADA S. , ISHII T. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Growth of CaWO4 Crystals from M2WO4 (M: Li, Na, and K) Fluxes.
Authors: OISHI S. , HIRAO M. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Fluorescence “Off‐On” Signalling upon Linear Recognition and Binding of α,ω‐Alkanediylammonium Ions by 9,10‐Bis((1‐aza‐4,7,10, 13,16‐pentaoxacyclooctadecyl)methyl)anthracene.
Authors: DE SILVA A. P. , SANDANAYAKE K. R. A. S. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Radiative Lifetimes of the A 2A1(v3 = 0‐2) States of CH3S.
Authors: LEE Y.‐Y. , CHIANG S.‐Y. , LEE Y.‐P. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Spectroscopic Properties of Substituted Cα,N‐Diphenylnitrones
Authors: WILPERT A. , SIEGMUND M. , KOEPPEL H. , BENDIG J. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Interconversion Kinetics and Ordering of cis‐Decalin in Liquid‐ Crystalline Solvents by 1D and 2D Deuterium NMR
Authors: BOEFFEL C. , LUZ Z. , POUPKO R. , ZIMMERMANN H. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Strong Field Effects in the Spectroscopy of the B Rydberg State of CH3I.
Authors: SYAGE J. A. , STEADMAN J. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.