bluuebunny/crossref_metadata_2025_split huggingface dataset:
A spatial and temporal correlation analysis of aggregate wind power in an ideally interconnected Europe
Authors: Malvaldi A. , Weiss S. , Infield D. , Browell J. , Leahy P. , Foley A. M. 
Published: March 2017

AbstractStudies have shown that a large geographic spread of installed capacity can reduce wind power variability and smooth production. This could be achieved by using electricity interconnections and storage systems. However, interconnections and storage are not totally flexible, so it is essential to understand the wind power correlation in order to address power system constraints in systems with large and growing wind power penetrations. In this study, the spatial and temporal correlation of wind power generation across several European Union countries was examined to understand how wind ‘travels’ across Europe. Three years of historical hourly wind power generation data from 10 countries were analysed. The results of the analysis were then compared with two other studies focused on the Nordic region and the USA. The findings show that similar general correlation characteristics do exist between European country pairs. This is of particular importance when planning and operating interconnector flows, storage optimization and cross‐border power trading. Copyright © 2017 The Authors Wind Energy Published by John Wiley & Sons Ltd
Identification of loading conditions resulting in roller slippage in gearbox bearings of large wind turbines
Authors: Dąbrowski Dariusz , Natarajan Anand 
Published: March 2017

AbstractThe dynamic loads on the rollers inside the bearings of large wind turbine gearboxes operating under transient conditions are presented with a focus on identifying conditions leading to slippage of rollers. The methodology was developed using a multi‐body model of the drivetrain coupled with aeroelastic simulations of the wind turbine system. A 5 MW reference wind turbine is considered for which a three‐stage planetary gearbox is designed on the basis of upscaling of an actual 750 kW gearbox unit. Multi‐body dynamic simulations are run using the ADAMS software using a detailed model of the gearbox planetary bearings to investigate transient loads inside the planet bearing. It was found that assembly and pre‐loading conditions have significant influence on the bearing's operation. Also, the load distribution in the gearbox bearings strongly depends on wind turbine operation. Wind turbine start‐up and shut‐down under normal conditions are shown to induce roller slippage, as characterized by loss of contacts and impacts between rollers and raceways. The roller impacts occur under reduced initial pre‐load on opposite sides of the load zone followed by stress variation, which can be one of the potential reasons leading to wear and premature bearing failures. Copyright © 2017 John Wiley & Sons, Ltd.
Hypnotic Suggestion as a Technique for the Control of Dreaming
Authors: Tart Charles T. 
Published: March 2017

Abstract
Dream research is almost exclusively a matter of correlational research. We have, of course, learned a great deal about the nature of nocturnal dreaming as a result of correlational studies, and I have no doubt that we will continue to learn a great deal from them. If we could supplement correlational studies with functional studies, however, we could probably progress a good deal faster in our understanding of dreaming. What I would like to discuss are some attempts of mine to develop hypnotic suggestion or, more precisely, posthypnotic suggestion as a powerful and precise technique which would allow functional studies of dreaming and some speculations about the usefulness of such a technique and where it might lead us.
Breast Cancer Detection by Preoperative Imaging in Reduction Mammaplasty Patients: A Single Center Study of 918 Patients
Authors: Merkkola‐von Schantz Päivi A. , Kauhanen Susanna M. C. , Jahkola Tiina A. , Krogerus Leena A. , Hukkinen Katja S. 
Published: March 2017

AbstractBackgroundThe role of preoperative imaging and the usability of different imaging modalities is highly variable and controversial in reduction mammaplasty patients. Our study describes the imaging process in a single center in regard to modality selection, age and timing, and of the association between imaging and histopathological findings in reduction mammaplasty specimens.MethodsNine hundred eighteen women, who underwent reduction mammaplasty during 1.1.2007–31.12.2011, were retrospectively reviewed for demographics, preoperative imaging, further preoperative examinations, and pathology reports.ResultsPreoperative imaging had been conducted for 89.2% (n = 819) of the patients. In 49 (6.0%) patients, suspicious preoperative imaging led to further examinations revealing 2 high‐risk lesions (atypical ductal hyperplasia (ADH), lobular carcinoma in situ (LCIS)), and 2 cancers preoperatively. Postoperatively abnormal histopathology specimens were revealed in 88 (10.4%) patients. The incidence of high‐risk lesions was 5.5% (n = 47), and the incidence of cancer was 1.2% (n = 10). Preoperative imaging was normal (BI‐RADS 1 and BI‐RADS 2) in 80.8% of these patients. The sensitivity of the preoperative imaging for cancer detection was 20.0%, and the specificity was 100.0%.ConclusionsPreoperative imaging and further examinations do not sufficiently detect malignant or cancer risk‐increasing findings. Therefore, histopathological analysis of reduction mammaplasty specimens seems mandatory.
Population‐Based Autopsy Study of Traumatic Fatalities
Authors: Saar S. , Lomp A. , Laos J. , Mihnovitš V. , Šalkauskas R. , Lustenberger T. , Väli M. , Lepner U. , Talving P. 
Published: March 2017

AbstractBackgroundInjuries result in 5.8 million global fatalities annually and are the leading cause of death in younger individuals. Nevertheless, population‐based autopsy investigations on traumatic deaths are scarce. We set out to study all consecutive autopsies on traumatic fatalities performed in a 5‐year time segment in Estonia.MethodsAfter the ethics review board approval, all consecutive autopsies after blunt or penetrating deaths occurring in prehospital or in‐hospital settings between January 1, 2009, and December 31, 2013, were retrospectively reviewed using the National Forensic Medicine Database. Fatalities due to suffocation, intoxication, burns, or freezing were excluded. Data collection included demographics, mechanism of injuries, cause of death, and a detailed injury profile. Primary outcome was cause of death. Secondary outcomes included injury patterns.ResultsOverall, 1344 autopsies were included. 75.7% of deaths were following blunt trauma. Mean age was 50.4 ± 18.5 years, and 77.1% were male. A total of 71.8% of deaths occurred in the prehospital setting. Accidents, assaults, and suicides constituted 64.4, 20.5, and 15.2% of deaths, respectively. A total of 51.1% of injury fatalities had a positive blood alcohol level (BAL). Mean injury severity score was 39.7 ± 23.9. Most common cause of death was due to head injuries at 50.5% followed by hemorrhage at 30.4%. Cardiac and aortic injuries were the predominant cause of hemorrhage‐related fatalities.ConclusionsThe current population‐based investigation documented brain injury as the predominant cause of death followed by cardiac and aortic injuries. High incidence of positive BAL among injury fatalities requires national initiatives for alcohol harm reduction and law enforcement efforts.
A Systematic Review of Randomized Controlled Trials to Assess Outcomes of Genetic Counseling
Authors: Athens Barbara A. , Caldwell Samantha L. , Umstead Kendall L. , Connors Philip D. , Brenna Ethan , Biesecker Barbara B. 
Published: March 2017

AbstractWith the advancements in precision medicine and health care reform, it is critical that genetic counseling practice respond to emerging evidence to maximize client benefit. The objective of this review was to synthesize evidence on outcomes from randomized controlled trials (RCTs) of genetic counseling to inform clinical practice. Seven databases were searched in conducting this review. Studies were selected for inclusion if they were: (a) RCTs published from 1990 to 2015, and (b) assessed a direct outcome of genetic counseling. Extracted data included study population, aims, and outcomes. Risk of bias was evaluated using the Cochrane Handbook for Systematic Reviews of Interventions guidelines. A review of 1654 abstracts identified 58 publications of 54 unique RCTs that met inclusion criteria, the vast majority of which were conducted in cancer genetic counseling setting. Twenty‐seven publications assessed ‘enhancements’ to genetic counseling, and 31 publications compared delivery modes. The methodological rigor varied considerably, highlighting the need for attention to quality criteria in RCT design. While most studies assessed several client outcomes hypothesized to be affected by genetic counseling (e.g., psychological wellbeing, knowledge, perceived risk, patient satisfaction), disparate validated and reliable scales and other assessments were often used to evaluate the same outcome(s). This limits opportunity to compare findings across studies. While RCTs of genetic counseling demonstrate enhanced client outcomes in a number of studies and pave the way to evidence‐based practice, the heterogeneity of the research questions suggest an important need for more complementary studies with consistent outcome assessments.
Age at injury is associated with the long‐term cognitive outcome of traumatic brain injuries
Authors: Li Wei , Risacher Shannon L. , McAllister Thomas W. , Saykin Andrew J. ,   Alzheimer's Disease Neuroimaging Initiative
Published: March 2017

AbstractIntroductionThe association between age at injury (AAI) and long‐term cognitive outcome of traumatic brain injuries (TBI) is debatable.MethodsEligible participants with a history of TBI from Alzheimer's Disease Neuroimaging Initiative were divided into a childhood TBI (cTBI) group (the AAI ≤ 21 years old) and an adult TBI (aTBI) group (the AAI > 21 years old).ResultsThe cTBI group has a higher Everyday Cognition total score than the aTBI group. All perceived cognitive functions are worse for the cTBI group than for the aTBI group except memory. By contrast, the cTBI group has higher assessment scores on either the Boston Naming Test or Rey Auditory Verbal Learning Test than the aTBI group.DiscussionThe AAI is associated with the long‐term cognitive outcomes in older adults with a history of TBI.
On the decay properties of the Franklin analyzing wavelet
Authors: Berkson E. 
Published: March 2017

We study the behaviour of the Frankin analysing wavelet

ψ

, which is piecewise linear with nodes in

ℤ/2

, by giving the size and sign of

ψ(n/2)

.

Résumé

On étudie le comportement de l’ondelette de Franklin

ψ

, affine par morceaux et à nœuds dans

ℤ/2

, en précisant la taille et le signe de

ψ(n/2)

.
Periodic solutions for a class of Lorenz–Lagrangian systems
Authors: Toland J.F. 
Published: March 2017

The class of Lorenz–Lagrangian systems under consideration are those of the form

−\mathrm{A}\"q = \nabla \mathrm{V}(q)

,

q \in ℝ^n

, where

A

is a real, symmetric matrix with eigenvalues

µ_1 < 0 < µ_2 ≦ … ≦ µ_n

, the corresponding eigenvectors being

e_i

,

1 ≦ i ≦ n

. If

\mathrm M^+

and

\mathrm M^−

are disjoint infinite submanifolds of

ℝ^n

which are the graphs of bounded real-valued functions on span

\{e_2, …, e_n\}

with

\mathrm V = 0

on

\mathrm M^+ \cup \mathrm M^-

,

\mathrm V > 0

on the region

Ω

between

\mathrm M^+

and

\mathrm M^−

, and

\langle \nabla \mathrm{V},e_{1}\rangle \neq 0

on

ℝ^{n}\setminus \mathrm{\Omega }

, then we show that there exists a periodic solution of this system, provided that

∇\mathrm V

points towards the

e_1

axis outside a large cylinder centred on the

e_1

axis.

Résumé

On étudie une classe de systèmes de Lorentz–Lagrange dans ℝ
n
de la forme

−\mathrm{A}\"q = \nabla \mathrm{V}\left(q\right)

, où

A

est une matrice sysmétrique réelle de valeurs propres

µ_1 < 0 < µ_2 ≦ … ≦ µ_n

. Les vecteurs propres correspondants sont notés

e_1, …, e_n

. On suppose qu’il existe sur l’hyperplan engendré par

e_2, …, e_n

deux fonctions bornées, dont les graphes

\mathrm M^+

et

\mathrm M^-

sont disjoints, et telles que

\mathrm V > 0

entre

\mathrm M^+

et

\mathrm M^-

et

\mathrm V = 0

sur

\mathrm M^+

et

\mathrm M^-

.

On montre alors que le système possède une solution périodique pourvu que

\langle \nabla \mathrm{V},e_{1}\rangle \neq 0

hors de

Ω

et que

∇\mathrm V

soit dirigé vers l’axe

e_1

loin de celui-ci.
Infinitely many radial solutions of an elliptic system
Authors: Terman D. 
Published: March 2017

We consider a system of equations of the form

Δu + ∇F(u) = 0

. In this and two subsequent papers we find conditions on

F(u)

to guarantee that this system has infinitely many radial solutions. We also define a notion of winding number for each radial solution and prove that for each positive integer

K

there exists a radial solution with winding number

K

.

Résumé

L’on considère un système d’équations de la forme

Δu + ∇F(u) = 0

. Dans cet article et dans deux articles à paraître, I’on trouve des conditions sur

F(u)

qui garantissent que le système a une infinité de solutions radiales. L’on définit également un nombre d’enlacements pour chaque solution radiale et l’on démontre que pour tout entier

K

non nul il existe une solution radiale dont le nombre d’enlacements est

K

.
Choosing Wisely Canada®: Five tests, procedures and treatments to question in Emergency Medicine
Authors: Cheng Amy H. Y. , Campbell Sam , Chartier Lucas B. , Goddard Tom , Magee Kirk , McEwen Jill , Kapur Atul K. , Holroyd Brian R. , Upadhye Suneel , Couperthwaite Stephanie , Rowe Brian H. 
Published: March 2017

AbstractObjectivesChoosing Wisely Canada (CWC) is an initiative to encourage patient-physician discussions about the appropriate, evidence based use of medical tests, procedures and treatments. We present the Canadian Association of Emergency Physicians’ (CAEP) top five list of recommendations, and the process undertaken to generate them.MethodsThe CAEP Expert Working Group (EWG) generated a candidate list of 52 tests, procedures, and treatments in emergency medicine whose value to care was questioned. This list was distributed to CAEP committee chairs, revised, and then divided and randomly allocated to 107 Canadian emergency physicians (EWG nominated) who voted on each item based on: action-ability, effectiveness, safety, economic burden, and frequency of use. The EWG discussed the items with the highest votes, and generated the recommendations by consensus.ResultsThe top five CAEP CWC recommendations are: 1) Don’t order CT head scans in adults and children who have suffered minor head injuries (unless positive for a validated head injury clinical decision rule); 2) Don’t prescribe antibiotics in adults with bronchitis/asthma and children with bronchiolitis; 3) Don’t order lumbosacral spinal imaging in patients with non-traumatic low back pain who have no red flags/pathologic indicators; 4) Don’t order neck radiographs in patients who have a negative examination using the Canadian C-spine rules; and 5) Don’t prescribe antibiotics after incision and drainage of uncomplicated skin abscesses unless extensive cellulitis exists.ConclusionsThe CWC recommendations for emergency medicine were selected using a mixed methods approach. This top 5 list was released at the CAEP Conference in June 2015 and should form the basis for future implementation efforts.
SUFFICIENT CONDITIONS FOR THE EXISTENCE OF LIMITING CARLEMAN WEIGHTS
Authors: ANGULO-ARDOY PABLO , FARACO DANIEL , GUIJARRO LUIS 
Published: March 2017

In Angulo-Ardoy et al. [Anal. PDE, 9(3) (2016), 575–596], we found some necessary conditions for a Riemannian manifold to admit a local limiting Carleman weight (LCW), based on the Cotton–York tensor in dimension 3 and the Weyl tensor in dimension 4. In this paper, we find further necessary conditions for the existence of local LCWs that are often sufficient. For a manifold of dimension 3 or 4, we classify the possible Cotton–York, or Weyl tensors, and provide a mechanism to find out whether the manifold admits local LCW for each type of tensor. In particular, we show that a product of two surfaces admits an LCW if and only if at least one of the two surfaces is of revolution. This provides an example of a manifold satisfying the eigenflag condition of Angulo-Ardoy et al. [Anal. PDE, 9(3) (2016), 575–596] but not admitting LCW.
London's Hadrianic War?
Authors: Perring Dominic 
Published: March 2017

ABSTRACTRecent work has advanced our understanding of human crania found in London's upper Walbrook valley, where skull deposition appears to have peaked during the occupation of the Cripplegate fort, itself probably built soon after London's Hadrianic fire. Although this fire is usually considered to have been accidental, parallels can be drawn with London's Boudican destruction. This article explores the possibility that these three strands of Hadrianic evidence — fire, fort and skulls — find common explanation in events associated with a British war of this period. This might support the identification of some Walbrook skulls as trophy heads, disposed asnoxiiin wet places in the urbanpomerium.
Comparison of QuantiFERON-TB Gold In-Tube (QFT-GIT) and tuberculin skin test (TST) for diagnosis of latent tuberculosis in haemodialysis (HD) patients: a meta-analysis ofκestimates
Authors: AYUBI E. , DOOSTI-IRANI A. , SANJARI MOGHADDAM A. , KHAZAEI S. , MANSORI K. , SAFIRI S. , SANI M. , MOSTAFAVI E. 
Published: March 2017

SUMMARYDiagnosis of latent tuberculosis infection (LTBI) is a concern in haemodialysis (HD) patients. Many studies have compared QuantiFERON-TB Gold In-Tube (QFT-GIT) and tuberculin skin test (TST) for detecting LTBI and reported theκstatistic of agreement between QFT-GIT and TST in HD patients. The present study aimed to systematically review this literature and conduct meta-analysis of individual studies that estimated theκbetween QFT-GIT with TST among HD patients. All relevant published studies that were available as full-text were obtained by searching Medline (1950), Web of Sciences (1945), Scopus (1973) through May 2016. Theκwas re-estimated from the individual studies and pooled using random effect meta-analysis. Subgroup analysis and meta-regression were applied to evaluate the effect of Bacillus Calmette–Guérin (BCG) vaccination, TST cut-off points, quality of studies, sample size and age on variation ofκestimate. Eight studies involving 901 HD patients were included in meta-analysis. The pooledκestimate was 0·28 (I2= 18·4%,P= 0·239, 95% confidence intervals 0·22–0·34). The discordance of TST−/QFT-GIT+ was more than TST+/QFT-GIT−. History of BCG vaccination, TST cut-off points and age are related to variation ofκestimates. TST and QFT-GIT are not comparable in detecting LTBI in HD patients. The higher TST−/QFT-GIT+ ratio compared with TST+/QFT-GIT− ratio, may indicate the superiority of QFT-GIT over TST for detection LTBI in HD patients.
Revisiting the system of English relative clauses: structure, semantics, discourse functionality
Authors: CORNISH FRANCIS 
Published: March 2017

The goal of this article is to uncover the system underlying three types of English relative clauses, and to characterise their distinctive uses in discourse: NP-integrated ones, namely restrictive and ‘a-restrictive’ relative clauses, and non-integrated ones, represented by non-restrictive relatives.The area at issue is central, since understanding the functioning of these constructions requires reference to the fundamental interface between grammar (language system) and discourse (language use). The discourse functions of the three subtypes of relatives are claimed to be underlain by their intrinsic morphosyntactic and semantic properties. A major aim is to highlight the relative degree of ‘communicative dynamism’ of each subtype of relative clause, in terms of its respective contribution to the construction of discourse.In doing so, the article focuses on the distinctive properties of presupposed as well as non-presupposed restrictive relatives, and of definite as well as indefinite NPs containing integrated relatives more generally. Along the way, it critically examines certain controversial conceptions of the structural and functional features of the constructions at issue, and, in particular, the claim that there is no essential distinction to be drawn between ‘integrated’ and phrase-external relative clause subtypes at all.
Angst, Depression und Trauma – transdiagnostische Effekte der traumafokussierten kognitiven Verhaltenstherapie (TF-KVT)
Authors: Sachser Cedric , Goldbeck Lutz 
Published: March 2017

Zusammenfassung. Kinder und Jugendliche mit posttraumatischen Belastungsstörungen weisen häufig auch Angstsymptome und depressive Symptome auf. Diese Studie untersucht bei 159 Teilnehmern einer multizentrischen klinischen Studie (Alter 7 – 17 Jahre) die Vergesellschaftung posttraumatischer Stresssymptome (PTSS) mit Angst und Depression sowie das Ansprechen dieser Symptome auf traumafokussierte kognitive Verhaltenstherapie (TF-KVT). Bei Studienbeginn zeigten 121 (76 %) Patienten klinisch relevante Angstsymptome und 91 (57 %) klinisch relevante Depressionssymptome. PTSS waren signifikant mit Angst (r = .42, p < .001) sowie mit Depression (r = .49, p < .001) korreliert. Mit TF-KVT behandelte Patienten zeigten nicht nur eine deutliche Remission ihrer Stresssymptomatik, sondern auch ihrer Angst- und Depressionssymptome. Die Ergebnisse bestätigen die hohe Prävalenz klinisch relevanter Angst- und Depressionssymptome bei traumatisierten Kindern und Jugendlichen und verweisen auf transdiagnostische Effekte der TF-KVT.
Komorbide Angststörungen bei Störungen des Sozialverhaltens
Authors: Lüdtke Janine , Boonmann Cyril , Dölitzsch Claudia , In-Albon Tina , Jenkel Nils , Kölch Michael , Fegert Jörg M. , Schmeck Klaus , Schmid Marc 
Published: March 2017

Zusammenfassung. Obwohl Angststörungen (AS) häufig komorbid mit einer Störung des Sozialverhaltens (SSV) auftreten, wurde diese Komorbidität in der Forschung weitgehend vernachlässigt. Komorbide AS wirken sich in Studien sowohl positiv als auch negativ auf den Verlauf einer SSV aus. Diese Studie zielt darauf ab, Heranwachsende mit einer SSV mit und ohne AS hinsichtlich psychischer Belastung, traumatischen Erlebnissen, psychopathischen Persönlichkeitstraits und Legalbewährung zu untersuchen. 207 Heranwachsende mit einer SSV (9 – 25 Jahre; 73.4 % männlich; SSV: N = 180, SSV und AS: N = 27), die zum Zeitpunkt der Untersuchung in Jugendhilfeeinrichtungen lebten, konnten eingeschlossen werden. Es wurden strukturierte klinische Interviews und eine psychometrische Testbatterie eingesetzt. Die Resultate zeigen, dass die Gruppe mit SSV und AS signifikant weniger externalisierende und mehr internalisierende Symptome sowie traumatische Erlebnisse aufweisen. Bezüglich psychopathischer Persönlichkeitsmerkmale und Verurteilungen (>50 % in beiden Gruppen) ergaben sich keine signifikanten Gruppenunterschiede. Die Ergebnisse legen nahe, dass die Ausprägung der SSV für die Kriminalitätsentwicklung bedeutsamer und die spezifische Komorbidität von AS aber doch ätiologisch und symptomatisch von großem Interesse ist. Diese sollte deshalb mit Längsschnittstudien und Therapieprozessanalysen intensiver beforscht werden.