bluuebunny/crossref_metadata_2025_split huggingface dataset:
Association between outcome and changes in plasma lactate concentration during presurgical treatment in dogs with gastric dilatation-volvulus: 64 cases (2002–2008)
Authors: Zacher Laurie A. , Berg John , Shaw Scott P. , Kudej Raymond K. 
Published: April 2010

Abstract
Objective—To determine whether changes in presurgical plasma lactate concentration (before and after initial fluid resuscitation and gastric decompression) were associated with short-term outcome for dogs with gastric dilatation-volvulus (GDV).
Design—Retrospective case series.
Animals—64 dogs.
Procedures—Medical records were reviewed, and signalment, history, resuscitative treatments, serial presurgical lactate concentrations, surgical findings, and short-term outcome were obtained for dogs with confirmed GDV.
Results—36 of 40 (90%) dogs with an initial lactate concentration ≤ 9.0 mmol/L survived, compared with only 13 of 24 (54%) dogs with a high initial lactate (HIL) concentration (> 9.0 mmol/L). Within HIL dogs, there was no difference in mean ± SD initial lactate concentration between survivors and nonsurvivors (10.6 ± 2.3 mmol/L vs 11.2 ± 2.3 mmol/L, respectively); however, there were significant differences in post-treatment lactate concentration, absolute change in lactate concentration, and percentage change in lactate concentration following resuscitative treatment. By use of optimal cutoff values within HIL dogs, survival rates for dogs with final lactate concentration > 6.4 mmol/L (23%), absolute change in lactate concentration ≤ 4 mmol/L (10%), or percentage change in lactate concentration ≤ 42.5% (15%) were significantly lower than survival rates for dogs with a final lactate concentration ≤ 6.4 mmol/L (91%), absolute change in lactate concentration > 4 mmol/L (86%), or percentage change in lactate concentration > 42.5% (100%).
Conclusions and Clinical Relevance—Calculating changes in plasma lactate concentration following initial treatment in dogs with GDV may assist in determining prognosis and identifying patients that require more aggressive treatment.
Relationship between plankton assemblages and habitat characteristics of stands of Typha angustifolia and Chara hispida in Lake Wielkowiejskie
Authors: Celewicz-Gołdyn Sofia , Klimko Małgorzata , Kuczyńska-Kippen Natalia , Nagengast Barbara 
Published: April 2010

Abstract
The results of investigations performed in Lake Wielkowiejskie showed the influence of macrophyte architecture, understood as plant density, on the structure of plankton communities as well as the habitat preferences of particular species in both seasonal and spatial aspects.
Improvement of enzyme stability via non-covalent complex formation with dextran against temperature and storage lifetime
Authors: Altikatoglu Melda , Kuzu Huriye 
Published: April 2010

Improvement of enzyme stability via non-covalent complex formation with dextran against temperature and storage lifetime
The optimal methodology to prepare the novel modified enzyme, polymer-enzyme complex, was developed to give a high catalytic activity in aqueous solution. The non-covalent complexes of two different enzymes (horseradish peroxidase and glucose oxidase) were prepared with various molar ratios (nD/nE 0,05; 0,1; 1; 5; 10; 15; 20) by using 75kDa dextran. The thermal stabilities of the obtained complexes were evaluated with the activities determined at different temperatures (25, 30, 35, 40, 50, 60, 70, 80°C) applying 60 minutes incubation time for pH 7. The complexes with the molar ratio nD/nHRP: 10 and nD/nGOD: 5 showed the highest thermal stability. Its activity was very high (ca. 1,5-fold higher activity than pure enzyme for HRP-dextran complexes) and almost the same between applying one hour incubation time and without incubation, and could also be measured at high temperatures (70, 80 °C). We finally succeeded in preparing dextran-enzyme complexes which showed higher activity than pure enzyme in aqueos solution at all temperatures for pH 7. In addition, the mentioned complexes at pH 7 had very long storage lifetime compared to purified enzyme at +4 °C; which is considered as a good feature for the usage in practice.
The Ti-MWW catalyst - its characteristic and catalytic properties in the epoxidation of allyl alcohol by hydrogen peroxide
Authors: Wróblewska Agnieszka , Fajdek Anna , Milchert Eugeniusz , Grzmil Barbara 
Published: April 2010

The Ti-MWW catalyst - its characteristic and catalytic properties in the epoxidation of allyl alcohol by hydrogen peroxide
Ti-MWW, one of the latest titanium-silicalite catalysts, has been prepared by direct hydrothermal synthesis using hexamethyleneimine as a structure-directing agent. The characteristic of the catalyst was performed by means of the following methods: XRD, SEM, IR, UV-vis and X'Ray microanalysis. The catalytic properties of Ti-MWW have been compared with those of the conventional titanium-silicalites TS-1 and TS-2 in the epoxidation of allyl alcohol with hydrogen peroxide. The process has been described by the following main functions: the selectivity of the transformation to glycidol in relation to allyl alcohol consumed, the conversions of the substrates (allyl alcohol and hydrogen peroxide) and the selectivity of the transformation to organic compounds in relation to hydrogen peroxide consumed.
Autumn migration of Marsh Harriers (Circus aeruginosus) across the Central Mediterranean in 2002
Authors: Agostini Nicolantonio , Coleiro Charles , Panuccio Michele 
Published: April 2010

Autumn migration of Marsh Harriers (Circus aeruginosus) across the Central Mediterranean in 2002
Observations on the autumn migration of the Marsh Harrier were made at two sites of the central Mediterranean: the Circeo promontory (central Italy) and the island of Malta. The aim was to investigate the passage of birds belonging to different sex and age classes. At the Circeo promontory a total of 787 individuals was counted, 37.5% of which were juveniles. Over the island of Malta the passage of 1535 Marsh Harriers was recorded with an evident peak comprising 906 birds on 13 September. At both sites males outnumbered females, mostly within the first half of September. Because, at least among adults, an imbalance towards females has been reported in the population wintering in central Europe, our results suggest that adult males could have a stronger tendency to migrate over a long distance, crossing the central Mediterranean area in large numbers. Whereas females, being larger than males, are able to tolerate colder temperatures and fast longer. Finally, our counts confirm the increase of the European population of the Marsh Harrier, which has occurred for the last three decades.
Directional behaviour of the Sedge Warbler (Acrocephalus schoenobaenus) studied in two types of orientation cages during autumn migration - a case study
Authors: Zehtindjiev Pavel , Ilieva Mihaela , Ożarowska Agnieszka , Busse Przemysław 
Published: April 2010

Directional behaviour of the Sedge Warbler (Acrocephalus schoenobaenus) studied in two types of orientation cages during autumn migration - a case study
Migratory directions of Sedge Warblers tested in the Emlen funnel and Busse's flat cage during autumn migration in the Balkan region were studied. Some methodological aspects of orientation data analysis were discussed as well. According to orientation data at least two populations of the Sedge Warbler migrate in NE Bulgaria: one in SW direction via Greece, crossing the Mediterranean Sea to Libya, and then Central Africa and second one through Turkey, (Cyprus?) and the Middle East to the eastern parts of winter quarters (SE direction). This pattern is clear when a calculation method that assumes reverse and axial behaviour of birds (i.e. reversing vectors from northern sectors) is applied. Nature of "reverse migration" is still not well recognised and seems to be very interesting for further studies.
Movements and settling patterns of Sedge Warblers (Acrocephalus schoenobaenus) in the Czech Republic and Slovakia - an analysis of ringing recoveries
Authors: Procházka Petr , Reif Jiří 
Published: April 2010

Movements and settling patterns of Sedge Warblers (Acrocephalus schoenobaenus) in the Czech Republic and Slovakia - an analysis of ringing recoveries
In total, 1655 ringing recoveries of 1492 Sedge Warblers ringed or recovered in the Czech Republic and Slovakia were analysed in respect of breeding site fidelity, natal philopatry and movements. Out of 128 recoveries of adult birds from the breeding season, 96% came from the same locality showing a considerable breeding site fidelity. Out of 9 recoveries of birds ringed in nests and subsequently recovered during following breeding seasons, 8 settled at their birthplaces, only 1 male was found 26 km away from its native locality. After fledging, some juveniles dispersed in directions different from the migration routes. One young bird was recovered on its juvenile dispersal at the age of 35 days. On their migration to winterquarters, Sedge Warblers headed initially between south-west and south-east. The highest concentration of recoveries was situated in the Pannonian Lowland. Birds from the eastern Baltic region and Scandinavia often migrate through the territory of the Czech Republic and Slovakia. The only winter record came from southern France.
Recording of maternal deaths in an East African university hospital
Authors: BERGSJØ PER , VANGEN SIRI , LIE ROLV TERJE , LYATUU ROWLAND , LIE‐NIELSEN ERIK , ONEKO OLOLA 
Published: April 2010

AbstractObjective. To trace all maternal deaths at a tertiary East African university hospital with a systematic registration of all births. Design. Descriptive study. Sample. One hundred and nineteen cases of maternal death which occurred in the period from 2000 to 2007 (including). Methods. Identification through the birth registry and separate manual tracing of all case records. Account of practical problems concerning identification of cases and analysis of time trends, mothers' domicile, occurrence by phase of pregnancy, birth and puerperium, and diagnoses. Results. There was considerable under‐reporting of deaths in the medical birth registry. Twenty of 119 mothers died before 23 weeks' gestational age, most of them of unsafe abortion. Other prevalent direct causes of death were hemorrhage, eclampsia and other hypertensive complications. HIV/AIDS was primary cause in 20 cases. Conclusion. Even with relatively complete ascertainment of births, single hospital‐based medical birth registries have limitations in studies of maternal deaths. They may identify risks among women who arrive for delivery at the hospital, but are not well suited for estimation of total maternal mortality within the hospital walls. This would require additional data. Extending the birth registry monitoring system to all health institutions with obstetrical services in a region will give more reliable estimates to be followed over time and serve as a basis for regular auditing, to the benefit of mothers and their children.
Robotic radical parametrectomy in benign disease: report of two cases
Authors: ZAPARDIEL IGNACIO , ZANAGNOLO VANNA , MAGRINA JAVIER F. , MAGTIBAY PAUL M. 
Published: April 2010

AbstractRadical parametrectomy is rarely performed for benign diseases given the considerable risk of complications, however, some benign conditions require wide excision of the pelvic tissue, including parametria. We report on two cases of robotic radical parametrectomy performed for benign diseases. An electronic search was also carried out in PubMed database online to review this subject. Robotic surgery for radical parametrectomy seems safe and feasible and may be the preferred approach in terms of both lower complication rates, and shorter hospital stay compared to laparotomy, with the same results in terms of improvement of symptoms of chronic pelvic pain, although further studies are needed to confirm this observation.
Can Clinicians Predict Psychosis in an Ultra High Risk Group?
Authors: Nelson Barnaby , Yung Alison R. 
Published: April 2010

Aims: Criteria for identifying people likely to develop a first psychotic episode are now used in many clinical services worldwide. In recent years within these services, there has been an increase in the practice of prescribing antipsychotic medication with the aim of reducing symptoms and preventing onset of full-blown disorder. This practice is based on clinical impression of an incipient psychosis, that is, a clinical judgment that a particular patient may soon progress to full-threshold disorder and may therefore benefit from antipsychotics. However, it is unclear how accurate this clinical impression is. If not accurate it could mean that individuals are receiving antipsychotics unnecessarily. In this study, we investigated the predictive validity of clinical impression of whether ultra high risk patients would develop frank psychosis. Methods: Experienced psychologists rated their clinical impression of incipient psychosis in 168 ultra high risk patients. Ratings were made upon entry to the PACE clinic, a clinical service for ultra high risk patients. Psychosis status over the subsequent 12-month period was established using the Comprehensive Assessment of At Risk Mental States or State medical records. Results: A total of 8.9% of the sample transitioned to psychosis over the 12-month follow-up period. There was a sensitivity of 0.80, specificity of 0.84, positive predictive value (PPV) of 0.32 and negative predictive value (NPV) of 0.98 for the prediction of psychosis using the clinical impression ratings. Conclusions: The results indicate that clinical impression is not sufficient for predicting psychosis outcome in ultra high risk cohorts and that ongoing rigorous research into predictors of outcome in such cohorts is required. The results also caution against the prescription of antipsychotic medication based on clinical impression of incipient psychosis. Future work should address the predictive validity of clinical impression with a larger sample and over a longer follow-up period.
Neurointerventional procedures for unruptured intracranial aneurysms under procedural sedation and local anesthesia: a large-volume, single-center experience
Authors: Ogilvy Christopher S. , Yang Xinyu , Jamil Osama A. , Hauck Erik F. , Hopkins L. Nelson , Siddiqui Adnan H. , Levy Elad I. 
Published: April 2010

Object
In this paper, the authors' goal was to report the outcome of patients with unruptured intracranial aneurysms undergoing endovascular treatment under conscious sedation (local anesthesia).

Methods
Between November 5, 2001, and February 5, 2009, the authors treated 340 patients with 358 unruptured aneurysms by using neurointerventional procedures at Millard Fillmore Gates Hospital (Buffalo, New York). The data were retrospectively reviewed for periprocedural safety and long-term follow-up.

Results
A total of 496 procedures were performed under local anesthesia. Of those, 370 procedures (74.6%) were completed successfully. In 82 procedures (16.5%), an associated medical or technical event occurred. Forty-four procedures (8.9%) were aborted. Rates of overall procedure-related morbidity and mortality were 1.2% (6 of 496) and 0.6% (3 of 496), respectively. The average hospital stay was 1.5 ± 2.5 days. Long-term follow-up was available in 261 (82.1%) of 318 patients whose procedures were performed with local anesthesia. Of those, 246 patients (94.3%) had a good outcome (modified Rankin Scale score ≤ 2), 6 patients (2.3%) had an unfavorable outcome, not related to the procedure, and 9 patients (3.4%) had a poor outcome (modified Rankin Scale score > 2) as a result of the intervention.

Conclusions
Interventional treatment under conscious sedation (local anesthesia) can be effectively performed in most patients with unruptured intracranial aneurysms and is associated with a short hospital stay and low morbidity and mortality.
A novel technique for planning surgical approaches to the pineal region by using external cranial landmarks
Authors: Nayar Vikram V. , Benveniste Ronald J. , Lang Frederick F. 
Published: April 2010

Object
The infratentorial supracerebellar approach to the pineal region presents special challenges during patient positioning. The head must be flexed and the body positioned to allow an operative trajectory under the straight sinus. Image guidance is not useful during positioning because registration and navigation take place after the head is fixed in its final position. Therefore, a reliable method of positioning based on external, easily identifiable landmarks to estimate the surgical trajectory along the straight sinus toward the pineal region is needed. Based on observation, the authors hypothesized that a line between 2 palpable external landmarks, the inion and the bregma, often approximates the surgical trajectory along the straight sinus. They tested this hypothesis by quantifying the relationship between the straight sinus and the bregma, and describe a method for estimating the working angle during patient positioning.

Methods
The midsagittal, Gd-enhanced, T1-weighted MR images of 102 patients were analyzed. Demographic data and the presence or absence of tentorial pathological entities was recorded. The slant of the straight sinus was classified as common, high, or low, based on a previously described classification system. A line along the bottom of the straight sinus (that is, the straight-sinus line) was extended superiorly to its intersection with the calvaria, and the distance from this intersection point to the bregma was measured.

Results
The intersection point of the straight-sinus line and the calvaria was on average 2 ± 8.2 mm (these values are expressed as the mean ± SD throughout) anterior to the bregma (range 19.9 mm anterior to 19.1 mm posterior). The distance from the intersection point to the bregma was not statistically significantly different in younger or older patients, or in patients with or without tumors involving the pineal region. In patients with a low slant of the straight sinus, the intersection point was 5.3 ± 6.3 mm anterior to the bregma, whereas in patients with a high slant of the straight sinus, the intersection point was 0.21 ± 9.1 mm posterior to the bregma (p = 0.015).

Conclusions
The straight-sinus line, which defines the working angle for the supracerebellar infratentorial approach, intersects the calvaria very close to the bregma in the majority of patients. Therefore, ideal patient positioning can be achieved by flexing the patient's head to optimize the working angle defined by an imaginary line connecting the torcula (inion) to the bregma.
Isolation and characterization of microsatellite loci in the common milkweed, Asclepias syriaca (Apocynaceae)
Authors: Kabat Susan M. , Dick Christopher W. , Hunter Mark D. 
Published: April 2010

• Premise of the study: Microsatellite primers were developed for the common milkweed, Asclepias syriaca L., to assist in genet identification and the analysis of spatial genetic structure.• Methods and Results: Using an enrichment cloning protocol, eight microsatellite loci were isolated and characterized in a Michigan population of A. syriaca. The primers amplified di‐ and trinucleotide repeats with 4–13 alleles per locus.• Conclusions: The primers will be useful for studies of clonality and gene flow in natural populations.
Effects of CC chemokine receptor 5 (CCR5) inhibitors on the dynamics of CCR5 and CC-chemokine–CCR5 interactions
Authors: Nakata Hirotomo , Kruhlak Michael , Kamata Wakako , Ogata-Aoki Hiromi , Li Jianfeng , Maeda Kenji , Ghosh Arun K , Mitsuya Hiroaki 
Published: April 2010

Background This study aimed to examine how CC chemokine receptor 5 (CCR5) inhibitors (aplaviroc [APL], TAK779 and maraviroc [MVC]) interact with CCR5 and affect its dynamics and physiological CC-chemokine–CCR5 interactions. Methods A yellow fluorescent protein (YFP)-tagged CCR5-expressing U373-MAGI cell line was generated and a stable CCR5-expressing clonal population, YFPCCR5-UM16, was prepared. YFPCCR5-UM16 cells were exposed to RANTES, macrophage inflammatory protein (MIP)-1α or MIP-1β (all 100 ng/ml) with or without CCR5 inhibitors and YFPCCR5 internalization was visualized with realtime by laser scanning confocal microscopy. The mobility of YFPCCR5 was also examined in the presence of CCR5 inhibitors with fluorescence recovery after photobleaching (FRAP) imaging. Results Following the addition of each CC chemokine, intracellular fluorescence intensity increased whereas membranous fluorescence decreased, signifying YFPCCR5 internalization. All three CCR5 inhibitors failed to induce YFPCCR5 internalization. All three CCR5 inhibitors blocked the CC-chemokine-induced internalization at a high concentration of 1 μM; however, the ratio of APL concentration that blocked RANTES-induced internalization by 50% over APL concentration that blocked HIV type-1 (HIV-1) replication by 50% was 16.4, indicating that APL permits CC-chemokine-induced internalization to a much greater extent compared with TAK779 and MVC, having ratios of 1.1 and 0.9, respectively. The examination of YFPCCR5 mobility with FRAP imaging revealed that YFPCCR5 continuously underwent rapid redistribution, which none of the three inhibitors blocked. Conclusions The finding that APL moderately blocked the RANTES-triggered YFPCCR5 internalization despite the highly potent anti-HIV-1 activity of APL strongly suggests that development of CCR5 inhibitors, which do not overly inhibit physiological CC-chemokine–CCR5 interactions, is practically feasible.
Weak coupling of bacterial and algal production in a heterotrophic ecosystem: The Hudson River estuary
Authors: Findlay Stuart , Pace Michael L. , Lints David , Cole Jonathan J. , Caraco Nina F. , Peierls Benjamin 
Published: April 2010

Bacterial abundances, biomass, and production were measured over a 3‐yr period at stations along a 158‐km reach of the tidal, freshwater Hudson River. Bacterial abundances ranged from 1 to 10 × 106 cells ml−1 with maximal values in summer. Abundance and production averaged over all stations for the ice‐free season (April through December) were 4.9 and 9.1 × 109 cells liter−1 d−1, respectively, and both were significantly correlated with temperature. Neither bacterial abundance nor production showed significant spatial variability over the study reach. In contrast to the results from many autotrophic ecosystems, annual average bacterial abundances from different stations were not significantly correlated with algal standing stocks, and bacterial production was only weakly related to rates of primary production.Absolute rates of bacterial C production were greater than phytoplankton primary production, indicating that much of the bacterial secondary production in this portion of the river must be supported by nonphytoplanktonic organic C.
Similarity of whole‐sediment molecular diffusion coefficients in freshwater sediments of low and high porosity
Authors: Sweerts Jean‐Pierre R.A. , Kelly Carol A. , Rudd John W. M. , Hesslein Ray , Cappenberg Thomas E. 
Published: April 2010

Whole‐sediment molecular difusion coefficients (Ds) for tritiated water in pore waters of various lakes were determined experimentally by adding 3H2O to the overlying water of asphyxiated (without bioirrigation) and unasphyxiated cores and measuring the resulting pore‐water profiles after a period of time. Our objectives were to determine the relationship between Ds and Do (the diffusion coefficient in pure water) in sediments with a wide range of porosities and organic contents and to examine the influence of bioirrigation on solute transport and on the predictability of Ds.We found that Do/Ds did not change as much as expected with increasing porosity, i.e. in low‐porosity sediments the average Do/Ds was 1.8±0.1 and in high‐porosity sediments it was 1.5±0.2. We also found that the effect of faunal activity on the predictability of Ds was only significant in sediments with high (14,000 ind. m−2) invertebrate populations. This result means that in most freshwater sediments, the sediment diffusion coefficient can be predicted reliably from the molecular diffusion coefficient at in situ temperature.