bluuebunny/crossref_metadata_2025_split huggingface dataset:
Acquired arteriovenous fistula associated with traumatic oroantral fistula: Endovascular treatment
Authors: Sanborn Matthew R. , Nasrallah Ilya , Stanton David C. , Stiefel Michael F. , Hurst Robert W. , Pukenas Bryan A. 
Published: January 2012

AbstractBackground.Oroantral fistulas are pathologic connections between the oral cavity and the maxillary sinus. Arteriovenous fistulas are abnormal connections between an artery and a vein with no intervening capillary network.MethodsWe present an extremely rare case of barotrauma‐related oroantral fistula with an associated arteriovenous fistula between the internal maxillary artery and the ophthalmic venous system.ResultsThe patient developed an oroantral fistula from barometric pressure changes in the setting of sinusitis. After closure and revision of the oroantral fistula, he developed proptosis and chemosis. Angiography revealed an arteriovenous fistula between the internal maxillary artery and the ophthalmic venous drainage system in the area of the oroantral fistula, which was treated with endovascular embolization.ConclusionsArteriovenous fistulas may accompany oroantral fistulas created by trauma or surgery and should be considered in patients presenting with chemosis and proptosis. Treatment with embolization should be performed before surgical intervention. © 2012 Wiley Periodicals, Inc. Head Neck, 2013
Cricotracheal reconstruction with free radial forearm flap and titanium mesh
Authors: Balasubramanian Deepak , Thankappan Krishnakumar , Shetty Sharankumar , Jayaprasad Kiran , Mathew Jimmy , Iyer Subramania 
Published: January 2012

AbstractBackgroundReconstruction after partial cricotracheal resection is technically demanding and is seldom reported in literature. The purpose of this study was to report a technique of reconstruction of such a defect with a radial forearm flap supported by a titanium mesh.MethodsA 75‐year‐old man who was diagnosed with a case of papillary carcinoma thyroid, underwent excision of the tumor with a partial cricotracheal resection. The defect was reconstructed with a free radial forearm flap with fascia suspended on a titanium mesh.ResultsAt a follow‐up of 6 months after treatment, the patient has normal nasal breathing and an acceptable voice.ConclusionThis reconstructive technique enabled us to maintain the integrity of the subglottic airway. Our technique was unique in that we used the skin‐lined part of the radial forearm flap to line the airway and the fascia to cover the titanium mesh outside, thereby preventing plate exposure. © 2012 Wiley Periodicals, Inc. Head Neck, 2012
Assessment of second tier lymph nodes in melanoma and implications for extent of elective neck dissection in metastatic cutaneous malignancy of the parotid
Authors: Ch'ng Sydney , Pinna Audrey , Ioannou Kim , Juszczyk Karolina , Shannon Kerwin , Clifford Anthony , Uren Roger , Clark Jonathan R. 
Published: January 2012

AbstractBackgroundThe parotid is the commonest site of cutaneous metastases in the head and neck. The role and extent of neck dissection in patients with parotid metastatic cutaneous malignancy remains controversial.MethodsWe reviewed the lymphoscintigraphy and single photon emission CT (SPECT) of patients with melanoma who had a sentinel node in the parotid to determine the second tier cervical lymph nodes.ResultsLevels II and III cervical nodes make up 82% of second tier lymph nodes for the parotid, and levels IV and V, 12% and 4%, respectively. Second tier lymph nodes isolated to levels I, IV, or V, bypassing levels II and III, occurred in only 2% of cases.ConclusionThe risk of harboring occult metastasis in levels I, IV, and V when levels II and III are negative is low. Levels II and III neck dissection is likely to be an effective staging procedure in patients with isolated parotid metastases. © 2012 Wiley Periodicals, Inc. Head Neck, 2013
Beiträge zur Biologie von Lutjanus analis (Cuvier & Valenciennes, 1828) (Lutjanidae, Perciformes, Pisces) an der kolumbianischen Atlantikküste
Authors: Erhardt Harry , Meinel Werner 
Published: January 2012

AbstractInvestigations on the biology of the red snapper Lutjanus analis (Cuvier & Valenciennes, 1828) were made in three different areas along the Colombian Atlantic Coast. Egg counting was carried out on 16 females. The numbers of eggs were correlated with the length and the weight of the fish. The results are presented in graphs, average values and regression equations.To find the best mathematical relation between the fecundity, the length and the weight, linear and exponential equations were used. The best approximation to the relation between the number of eggs and the weight of the individuals was calculated by the parabola equation F = 20803 × G0.303, whereas the relation between the number of eggs and the length of the animals was most closely approached by the parabola equation F = 2922 × L1.1. Juvenile red snappers of a total length of 10 to 40 cm are very common in shallow‐water grass beds. The adult fishes migrate to offshore reefs and into deeper waters.The sex ratio of the red snapper was about equal in all catches. The largest fishes we have found were males.
Topographic and faunal studies of shelf‐edge prominences off the central eastern Florida coast
Authors: Avent Robert M. , King Marian E. , Gore Robert H. 
Published: January 2012

AbstractEighty topographic transects were made off the central Atlantic coast of Florida between Cape Canaveral and Palm Beach, November, 1973 to September, 1974, aboard the Research Vessel Gosnold. Profiles obtained with a precision depth recorder indicated the presence of continuous and discontinuous structures on the outer continental shelf and at the shelf‐slope break. Most conspicuous was a band of pinnacles, benches, mounds and troughs extending north from Fort Pierce to Cape Canaveral, Florida, and a massive mound occurring off St. Lucie Inlet. These occurred under the western edge of the Florida Current and along the edge of the continental shelf (about 80° W). From Fort Pierce southward to Palm Beach, these structures almost disappear.Dredgings in two selected areas of pronounced vertical profile, and preliminary visual and photographic observations made with the Johnson‐Sea‐Link I submersible, confirmed the existence of rich, sessile and motile invertebrate assemblages and fish populations associated with exposed limestone bedrock, talus, and the scleractinian coral Oculina varicosa.
Phytoplankton aus neu angelegten Streckteichen (Waldviertel, Niederösterreich)
Authors: Wawrik Friederike 
Published: January 2012

AbstractThe colonization of newly constructed fish‐ponds with phytoplankton is considered to be the result of inoculation by influents, airplankton and piscicultural measures. A considerable number of remarkable or new species have been observed, but bluegreen algae were extremely rare. The lack of a distinct seasonal succession in phytoplankton composition is attributed to the astatic character of the ponds. The following species are characteristic of the phytoplankton communities observed: Chlamydomonas sp., Chlorogonium elongatum v. plurivacuolatum, Cryptomonas sp., Cyclotella meneghiniana, C. pseudostelligera, Melosira varians, Pandorina morum.
Eine statistische Auswertung von Phytoplankton‐ und Nährstoffwerten aus den Boddengewässern des Darß und des Zingst (südliche Ostsee) unter Anwendung des nichtparametrischen Rangkorrelationskoeffizienten nach Spearman
Authors: Nasev Sophie , Nasev Dimiter , Pankow Helmut 
Published: January 2012

AbstractA statistical analysis for the waters of the Darss‐Zingst inlets (Southern Baltic) using the rank correlation coefficient according to Spearman shows a significant correlation between the amount of phytoplankton and total dissolved nitrogen.In contrast, no correlation could be found between phytoplankton and total dissolved phosphorus.
Factors relating to annual planktonic primary production in five small oligotrophic lakes in Terra Nova National Park, Newfoundland
Authors: Kerekes Joseph J. 
Published: January 2012

AbstractAnnual planktonic primary production in five small oligotrophic lakes in Newfoundland, as measured at maximum depth (P‐area) ranged from 5.6 to 12.0 g C/m2/year. Production per unit surface area representative of the whole lake basin (P‐area ) was considerably lower in the shallower lakes (3.3 to 6.4 g C/m2/yr), while production expressed per unit volume representative of the whole lake basin (P‐vol ) was the higher in the shallower lakes (0.6 to 4.1 g C/m3/yr). Production efficiency varied from lake to lake and throughout the year, but it remained fairly stable in a shorter term. Production efficiency and insolation was used to estimate annual production. Lakes with higher summer concentration of total phosphorus had higher rates of carbon assimilation.
Predicting fish yield in the Czechoslovakian section of the Danube river based on the hydrological regime
Authors: Holčík Juraj , Bastl Ivan 
Published: January 2012

AbstractThe authors found quite a close relationship between hydrological regime and fish yield in the Czechoslovakian Danube stretch. This relationship is not only true with the corresponding years but also for water level of the preceding year and the yield of the year to come. The equations characterizing the latter may, to quite a reliable extent, be applied to the prediction of fish yield in the next year. Biological mechanisms of the relationships investigated are discussed and examples of their utilization are given.
Microbial self‐purification in an experimental continuous‐flow system
Authors: Straškrabová VĚRa , Legner Miloš , Punčochař Pavel , Benndorf Jürgen , Cramer Franz 
Published: January 2012

AbstractThe decomposition of heterogeneous organic substrate by a mixed community of bacteria and protozoa was studied in a cascade with three stages and continuous flow (dilution rate 0.246 day−1 for each stage). Emphasis was put on the development of the community during the first seven days after dosing the substrate. During this period (20°C) no steady state or regular oscillations were achieved in the community structure. The substrate decrease in the whole system was around 70% of the inflow from the third day and the total net production of biomass fluctuated around 30% of the inflowing substrate. The grazing effect of protozoa was most pronounced on attached bacteria and on suspended single bacterial cells.
Estuarine benthic invertebrates of Indian river and Rehoboth Bays, Delaware
Authors: Maurer Don 
Published: January 2012

AbstractFrom 1968 to 1970, 273 quantitative samples of macroscopic benthic invertebrates were collected seasonally (winter and summer) from Indian River and Rehoboth Bays, Delaware. A total of 103, 485 individuals representing 11 phyla and 149 species was taken. Mobile carnivores comprised 30.9% (46 species) of the fauna, selective deposit feeders 28.2% (42 species), sedentary suspension feeders 18.1% (27 species), nonselective deposit feeders 3.4% (5 species), and sessile carnivores 2.7% (4 species). In terms of number of individuals, selective deposit feeders and sedentary suspension feeders comprised 49.2% (51,442 individuals) and 43.7% (44,647 individuals), respectively. The average density (no./m2) was generally significantly higher in Indian River than Rehoboth Bay. Maximum density for the former was 106,871/m2 and for the latter 60,192/m2. Evenness diversity was normally slightly higher in summer than winter and higher in Rehoboth Bay than in Indian River Bay. The top three species, ranked by density and frequency of occurrence, were Ampelisca abdita, Gemma gemma, and Tellina agilis. Annual and seasonal changes in density and dominance (exclusive of the top three species) were substantial. Biomass patterns were very similar to areas north (Moriches Bay, New York) and south (Beaufort, North Carolina). It was suggested that larger invertebrates have been deemphasized in biomass estimates in past studies. It was concluded that Rehoboth and Indian River Bays contained an Ampelisca — bivalve (Gemma gemma, Tellina agilis, Mercenaria mercenaria) community.
Impact de la pollution sur un écosystème méditerranéen cǒtier. II. Relations entre la composition spécifique des populations phytoplanctoniques et les taux de pigments et de nucléotides adényliques (ATP, ADP, AMP)
Authors: Benon Patricia , Blanc Francois , Bourgade Brigitte , David Pascal , Kantin Roger , Leveau Michel , Romano Jean‐Claude , Sautriot Dominique 
Published: January 2012

AbstractInfluences of unsalted waters penetration, in the Gulf of Fos, are marked as much on the primary step structuration level as on the component cellular physiology one. At their outlet, the weak structuration and the considerable biomasses resulting from an intense eutrophication go with a strong mortality clearly shown as well as by ATP/chlorophyll ratio than these of ATP, ADP and AMP inside the adenylic nucleotides pool. The primary step acquires a larger maturity in the salt share of the south eastern area. Spectrum variations of the population specific cellular volumes in terms of population importance can in a certain measure explain the intracellular rate variations into biochemical components.
Worldwide distribution and ecology ofAlonopsis(Cladocera: Chydoridae) with a description ofAlonopsis americanasp. nov.
Authors: Kubersky Edward S. 
Published: January 2012

AbstractWhereasAlonopsisis widespread in Eurasia west of the Ural Mountains, in the Western HemisphereAlonopsishas been recovered only in eleven lakes in New Hampshire and Maine and in two lakes in Newfoundland. The North American population is well differentiated from the EurasianAlonopsis elongataand is described as a new species,A. americana. To test if the species were reproductively isolated, parthenogenetically reproducing stocks from England and New England were raised in the labaratory, and subsequently induced to undergo gamogenesis. Interspecific crosses were never successful.
Notes on primary productivity of coastal waters in the Gulf of Elat (Red Sea)
Authors: Sournia Alain 
Published: January 2012

AbstractThe following parameters were measured during May 1976 along the coasts of the Gulf of Elat (or: Gulf of Aqaba): phytoplankton species composition, chlorophyll content and photosynthetic production; weight of suspended particles and nutrient concentration; chlorophyll content of the sediments. The study areas were coral reefs of the northern part of the Gulf and a mangrove pool south of it.Phytoplankton characteristics and nutrient levels are those of oligotrophic waters. However, the sediments harbour such an abundant plant biomass that in coastal waters per m2 surface area, there is several hundred times more chlorophyll in the sand than in the plankton. Reasons why both the mangrove and the coral reef may exhibit the same trends are discussed.
Efficacy of a porous‐structured titanium subdermal barrier for preventing infection in percutaneous osseointegrated prostheses
Authors: Jeyapalina Sujee , Beck James Peter , Bachus Kent N. , Williams Dustin L. , Bloebaum Roy D. 
Published: January 2012

AbstractInfections of percutaneous osseointegrated prostheses (POP) cause prolonged morbidity and device failure because once established, they are refractory to antibiotic therapy. To date, only limited translational animal studies have investigated the efficacy of POP designs in preventing infections. We developed an animal model to evaluate the efficacy of a porous‐coated titanium (Ti) subdermal barrier to achieve skin–implant integration and to prevent periprosthetic infection. In a single‐stage “amputation and implantation” surgery, 14 sheep were fitted with percutaneous devices with an attached porous‐coated Ti subdermal barrier. Nine sheep were implanted with a smooth Ti subdermal barrier construct and served as controls, with one control sheep removed from the study due to a fractured bone. Clinical, microbiological, and histopathological data showed that the porous Ti barrier prevented superficial and deep tissue infections in all animals (14/14, 100%) at the 9‐month endpoint. In contrast, animals with the smooth Ti implant construct had a 25% (2/8) infection rate. Survival analysis indicated a significant difference between the groups (log‐rank test,p = 0.018). Data also indicated that although skin marsupialization was evident in both implant types, animals in the control group had a four times greater marsupialization rate. We concluded that osseointegrated implants incorporating porous‐coated Ti subdermal barriers may have the ability to prevent infection by maintaining a healthy, biologically attached epithelial barrier at the skin–implant interface in load‐bearing animals up to a 9‐month terminus. © 2012 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 30:1304–1311, 2012
Measuring depression using item response theory: an examination of three measures of depressive symptomatology
Authors: Olino Thomas M. , Yu Lan , Klein Daniel N. , Rohde Paul , Seeley John R. , Pilkonis Paul A. , Lewinsohn Peter M. 
Published: January 2012

AbstractEvaluations of assessment instruments using classical test theory typically rely on indices of internal consistency, test–retest reliability, and construct validity. However, the use of models from item response theory (IRT) allows comparison of instruments (and items) in terms of the information they provide and where they provide it along the continuum of severity of the construct being assessed. Such results help to identify the measures most appropriate for specific clinical and research contexts. The present study examined the functioning of the Beck Depression Inventory (BDI), the Center for Epidemiologic Studies – Depression (CES‐D) scale, and the nine primary symptoms from the depression module of the Schedule for Affective Disorders and Schizophrenia – Children (K‐SADS) using IRT methods. A large sample of adolescents (n = 1709) completed the BDI, CES‐D scale, and K‐SADS. IRT calibration analyses demonstrated that the BDI and CES‐D scale performed well in similar ranges of depressive severity (approximately −1 to +3 standard deviations [SDs]), although the BDI provided more information at higher severity levels and the CES‐D scale at lower severity levels. The K‐SADS depression items, which are dichotomous and focused on clinical disorder, provided the least information that was restricted to the narrowest range (approximately +1 to +3 SDs). This work finds consistency between past rationale for the use of the BDI in clinical samples while using the CES‐D scale in epidemiological studies. The results for the K‐SADS suggest that interview measures may benefit from increasing the number of items and/or response options to collect more psychometric information. Copyright © 2012 John Wiley & Sons, Ltd.
Dose dependence and temporal evolution of the T1 relaxation time and MRI contrast in the rat brain after subcutaneous injection of manganese chloride
Authors: Shazeeb Mohammed Salman , Sotak Christopher H. 
Published: January 2012

AbstractDivalent manganese ion (Mn2+) is a widely used T1 contrast agent in manganese‐enhanced MRI studies to visualize functional neural tracts and anatomy in the brain in vivo. In animal studies, Mn2+ is administered at a dose that will maximize the contrast, while minimizing its toxic effects. In rodents, systemic administration of Mn2+ via intravenous injection has been shown to create unique MRI contrast in the brain at a maximum dose of 175 mg kg−1. However, intravenous administration of Mn2+ results in faster bioelimination of excess Mn2+ from the plasma due to a steep concentration gradient between plasma and bile. By contrast, following subcutaneous injection (LD50 value = 320 mg kg−1), Mn2+ is released slowly into the bloodstream, thus avoiding immediate hepatic elimination resulting in prolonged accumulation of Mn2+ in the brain via the choroid plexus than that obtained via intravenous administration. The goal of this study was to investigate MRI dose response of Mn2+ in rat brain following subcutaneous administration of Mn2+. Dose dependence and temporal dynamics of Mn2+ after subcutaneous injection can prove useful for longitudinal in vivo studies that require brain enhancement to persist for a long period of time to visualize neuroarchitecture like in neurodegenerative disease studies. Magn Reson Med, 2012. © 2012 Wiley Periodicals, Inc.
Endocrine phenotype of children and adults with Fanconi anemia
Authors: Rose Susan R. , Myers Kasiani C. , Rutter Meilan M. , Mueller Robin , Khoury Jane C. , Mehta Parinda A. , Harris Richard E. , Davies Stella M. 
Published: January 2012

AbstractBackgroundFeatures of Fanconi anemia (FA) are well known, including bone marrow failure, congenital anomalies such as radial anomalies, renal and ear anomalies, tracheo‐esophageal fistula, imperforate anus, and elevated risk for cancer. We sought to further characterize the endocrine phenotype in children and adults with FA.ProcedureClinically indicated endocrine evaluation data from 120 persons with FA, including 78 children (43 female) and 42 young adults (who had achieved adult height, 19 female), were entered in an institutional review board‐approved database. Data were analyzed according to gender, birth weight, FA complementation group, and whether or not the patient had completed linear growth or had undergone hematopoietic cell transplant, using Wilcoxon Rank Sum or Chi‐square, as appropriate.ResultsOverall, 60% of children and 58% of adults with FA had short stature, 68% of children and 30% of adults had glucose intolerance, 61% of children and 37% of adults had mild hypothyroidism, and 40% of adults had evidence of hypogonadism (not possible to fully assess in children). In general, bone mineral density (BMD) was normal in adults, while BMD in children was normal when results were adjusted for bone size/thickness using height age.ConclusionsWe have evaluated in detail children and adults with FA for their growth and endocrine function. Overall, 79% of children and adults with FA had one or more endocrine abnormality. Pediatr Blood Cancer 2012;59:690–696. © 2012 Wiley Periodicals, Inc.
Meta‐linked and para‐linked water‐soluble poly(arylene ethynylene)s with amino acid side chains: Effects of different linkage on Hg2+ ion sensing properties in aqueous media
Authors: Wu Xiaofu , Xu Bowei , Tong Hui , Wang Lixiang 
Published: January 2012

AbstractWater‐soluble, meta‐ and para‐linked poly(arylene ethynylene)s containing L‐aspartic acid‐functionalized fluorene units (P1 and P2) and their model compounds (M1 and M2) have been synthesized, and their photophysical properties and fluorescent sensing properties were investigated in aqueous solution. P1 and M1 with the meta‐linkage show blue‐shifted absorption and emission spectra, and decreased photoluminescence quantum yields compared with those of P2 and M2 with para‐linkage. Their absorption and fluorescence spectra are pH dependent perhaps due to the aggregation of the polymer chains at low pH values. In buffer solutions, both polymers and their model compounds exhibit the excellent selectivity and sensitivity to Hg2+ over other common metal ions. Furthermore, the quenching constant and detection limit of P1 are determined to be 1.04 × 107 M−1 and 10 nM, and show the higher sensitivity compared to P2. Further comparison of their model compounds reveal that the sensitivity and quenching efficiency of M1 is also higher than that of M2, indicating that the meta‐linkage pattern plays a key role in improving their Hg2+ ion sensing properties. In addition, both meta‐ and para‐linked polymers exhibit the higher quenching efficiency than their model compounds due to the amplified fluorescence response of conjugated polymer. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012