bluuebunny/crossref_metadata_2025_split huggingface dataset:
La importancia del control conductual percibido como elemento determinante de la intención emprendedora entre los estudiantes universitarios
Authors: Torres-Coronas Teresa , Vidal-Blasco María Arántzazu 
Published: July 2019

El aprendizaje emprendedor es un tema de gran interés en los últimos tiempos, incluso en el mundo universitario. La mentalidad emprendedora, el conocimiento, las habilidades y las actitudes están estrechamente relacionadoscon la innovación y la creatividad como facilitadores de acciones emprendedoras; estos factores son esenciales para preparar a los estudiantes universitarios para su futura vida profesional. Este estudio trata de analizar los factores que afectan al control conductual percibido como elemento determinante de la intención emprendedora. Para dar respuesta al objetivo propuesto, se pasó un cuestionario en línea a estudiantes universitarios (n = 549) yse realizó un análisis de regresión por pasos al objeto de contrastar las hipótesis y la relación entre las variables. Los resultados del análisis realizado muestran que factores psicológicos relacionados con la inteligencia emocional, como de la autoeficacia emprendedora, así como la experiencia laboral, el ámbito de estudios y el entorno universitario, tienen impacto sobre el comportamiento conductual percibido. A partir de esto concluimos que las instituciones educativas deberían tener en cuenta los factores que influyen sobre el comportamiento conductualpercibido con la finalidad de rediseñar sus planes de estudios y ofrecer una formación más efectiva.
What is the role of ultrasound in fracture management?
Authors: Nicholson J. A. , Tsang S. T. J. , MacGillivray T. J. , Perks F. , Simpson A. H. R. W. 
Published: July 2019

ObjectivesThe aim of this study was to review the current evidence and future application for the role of diagnostic and therapeutic ultrasound in fracture management.MethodsA review of relevant literature was undertaken, including articles indexed in PubMed with keywords “ultrasound” or “sonography” combined with “diagnosis”, “fracture healing”, “impaired fracture healing”, “nonunion”, “microbiology”, and “fracture-related infection”.ResultsThe use of ultrasound in musculoskeletal medicine has expanded rapidly over the last two decades, but the diagnostic use in fracture management is not routinely practised. Early studies have shown the potential of ultrasound as a valid alternative to radiographs to diagnose common paediatric fractures, to detect occult injuries in adults, and for rapid detection of long bone fractures in the resuscitation setting. Ultrasound has also been shown to be advantageous in the early identification of impaired fracture healing; with the advent of 3D image processing, there is potential for wider adoption. Detection of implant-related infection can be improved by ultrasound mediated sonication of microbiology samples. The use of therapeutic ultrasound to promote union in the management of acute fractures is currently a controversial topic. However, there is strong in vitro evidence that ultrasound can stimulate a biological effect with potential clinical benefit in established nonunions, which supports the need for further investigation.ConclusionModern ultrasound image processing has the potential to replace traditional imaging modalities in several areas of trauma practice, particularly in the early prediction of impaired fracture healing. Further understanding of the therapeutic application of ultrasound is required to understand and identify the use in promoting fracture healing. Cite this article: J. A. Nicholson, S. T. J. Tsang, T. J. MacGillivray, F. Perks, A. H. R. W. Simpson. What is the role of ultrasound in fracture management? Diagnosis and therapeutic potential for fractures, delayed unions, and fracture-related infection. Bone Joint Res 2019;8:304–312. DOI: 10.1302/2046-3758.87.BJR-2018-0215.R2.
Insulin resistance in rheumatoid arthritis: relationship to lipid metabolism disorders and metabolic syndrome
Authors: Kondratyeva L. V. , Popkova T. V. , Nasonov E. L. 
Published: July 2019

Objective:to determine the incidence of insulin resistance (IR) in patients with rheumatoid arthritis (RA) and to assess the relationship of IR to blood lipid profile changes and the presence of metabolic syndrome (MS).Subjects and methods.The investigation enrolled 47 RA patients (41 women and 6 men) without a history of diabetes mellitus (DM) and with normal fasting glucose levels during examination. The patients' median age was 56 [39; 62] years; disease duration – 6 [5; 14] years. Most of the patients had low (40.4%) or moderate (42.6%) RA activity (DAS28). IR was diagnosed using the Homeostastic Model Assessment of Insulin Resistance (HOMA-IR) index 2.77. The presence of MS was assessed by the National Cholesterol Education Program/Adult Treatment Panel III (NCEP/ATPIII) criteria and the International Diabetes Federation (IDF) criteria.Results and discussion.The median HOMA-IR value in RA patients was 1.7 [1.1; 3.2]. The HOMA-IR index correlated with age (r=0.3; p=0.04), body mass index (r=0.6; p<0.001), waist circumference (r=0.6; p<0.001), and the concentrations of total cholesterol (r=0.3; p=0.02) and triglycerides (TG) (r=0.5; p<0.001). All the patients were divided into two groups: 1) 15 patients with IR; 2) 32 patients without IR. The patients of both groups were matched for sex, age, RA duration and activity, and therapy, but the RA patients with IR more often had abdominal obesity (100.0 and 37.5%), hypertriglyceridemia (33.3 and 6.3%) and the atherogenic index >3.0 (40.0 and 6.3%, respectively; p<0.05 in all cases). MS was diagnosed using the NCEP/ATPIII criteria in 46.7% of cases with RI and in 6.3% of those without IR; MS was identified by the IDF criteria in 60.0 and 12.5% of cases, respectively (p<0.01 in all cases). There were no differences between groups in the incidence of hypertension, myocardial infarction, or in the frequency of surgeries for myocardial revascularization.Conclusion.More than 30% of RA patients without DM have IR (HOMA-IR ≥2.77). IR in RA is associated with obesity, elevated blood TG levels, and a proatherogenic lipid profile. The use of the criteria for MS could not always allows suspect IR in patients with RA.
Efficiency of local hyaluronic acid injections in subacromial impingement syndrome
Authors: Nesterenko V. A. , Karateev A. E. , Byalik E. I. , Makarov M. A. , Makarov S. A. , Byalik V. E. , Nurmukhametov M. R. , Fedotov I. A. 
Published: July 2019

Chronic shoulder pain associated with subacromial impingement syndrome (SIS) is a common pathology that causes suffering and disability. One of the treatments for SIS is the local injection of hyaluronic acid (HA) preparations.Objective:to evaluate the efficiency of subacromial injection of HA in chronic shoulder pain associated with SIS.Subjects and methods.A study group consisted of 31 patients (48.4% of women and 51.6% of men; mean age 53.8±15.2 years) with chronic shoulder pain (>3 months) that had occurred after rotator tendon injury confirmed by ultrasound and/or magnetic resonance imaging. All the patients received two subacromial injections of 40 mg HA in 2 ml at a 7-day interval. The efficacy criteria were the changes of pain during movement (100-mm visual analogue scale (VAS)) and functional ability according to the ASES and CSC questionnaires at 1, 3 and 6 months.Results and discussion.During the treatment, there was a considerable improvement in all measures. At baseline and 1, 3, and 6 months, the mean pain severity measured on VAS was 60.0±20.0, 40.0±25.4, 31.6±26.0, and 32.2±26.5 mm (p<0.001), the mean ASES scores were 53.64±16.43, 70.08±17.70, 86.13±12.86, and 82.69±27.88 (p<0.001); the mean CSC scores were 52.38±21.1, 66.26±20.83, 73.9±24.14, and 76.1±25.02 (p<0.001) respectively. No serious adverse events were noted.Conclusion.Subacromial injection of HA is an effective and safe treatment for chronic shoulder pain associated with SIS.
𝐻𝑝 spaces for generalized Schrödinger operators and applications
Authors: Liu Yu , Wang He 
Published: July 2019

Abstract
In this paper, we study the Hardy type space

H
ℒ
p

⁢

(

ℝ
n

)

{H_{\mathcal{L}}^{p}({\mathbb{R}^{n}})}

by means of local maximal functions associated with the heat semigroup

e

-

t
⁢
ℒ

{e^{-t\mathcal{L}}}

generated by

-
ℒ

{-\mathcal{L}}

, where

ℒ
=

-
Δ

+
μ

{\mathcal{L}=-\Delta+\mu}

is the generalized Schrödinger operator in

ℝ
n

{{\mathbb{R}^{n}}}

(

n
≥
3

{n\geq 3}

) and

μ
≢
0

{\mu\not\equiv 0}

is a nonnegative Radon measure satisfying certain scale-invariant Kato conditions and doubling conditions.
Via the equivalence of the norms between various local maximal functions, we show that the norms

∥
f
∥

H
ℒ
p

⁢

(

ℝ
n

)

p

{\lVert f\rVert_{H_{\mathcal{L}}^{p}({\mathbb{R}^{n}})}^{p}}

and

∥
f
∥

H
m

p
,
q

⁢

(

ℝ
n

)

p

{\lVert f\rVert_{H_{m}^{p,q}({\mathbb{R}^{n}})}^{p}}

are equivalent for

n

n
+

δ
′

<
p
≤
1
≤
q
≤
∞

{\frac{n}{n+\delta^{\prime}}<p\leq 1\leq q\leq\infty}

(

p
≠
q

{p\neq q}

) with some

δ
′

>
0

{\delta^{\prime}>0}

.
As applications, we prove that Calderón–Zygmund operators related to the auxiliary function

m
⁢

(
x
,
μ
)

{m(x,\mu)}

are bounded from

H
ℒ
p

⁢

(

ℝ
n

)

{H_{\mathcal{L}}^{p}({\mathbb{R}^{n}})}

into

L
p

⁢

(

ℝ
n

)

{L^{p}({\mathbb{R}^{n}})}

for

n

n
+

γ
1

<
p
≤
1

{\frac{n}{n+\gamma_{1}}<p\leq 1}

with

γ
1

>
0

{\gamma_{1}>0}

.
In particular, we show that the Riesz transform

∇

(
-
Δ
+
μ
)

-

1
2

{\nabla(-\Delta+\mu)^{-\frac{1}{2}}}

, which is a special example of the above Calderón–Zygmund operators, is bounded from

H
ℒ
p

⁢

(

ℝ
n

)

{H_{\mathcal{L}}^{p}({\mathbb{R}^{n}})}

into

H
p

⁢

(

ℝ
n

)

{{H}^{p}({\mathbb{R}^{n}})}

for

n

n
+

γ
1

<
p
≤
1

{\frac{n}{n+\gamma_{1}}<p\leq 1}

with

0
<

γ
1

<
1

{0<\gamma_{1}<1}

.
Predicate signatures from pair encodings via dual system proof technique
Authors: Nandi Mridul , Pandit Tapas 
Published: July 2019

Abstract
Recently, Attrapadung (Eurocrypt 2014) proposed a generic framework for fully (adaptively) secure predicate encryption (PE) based on a new primitive, called pair encodings.
The author shows that if the underlying pair encoding scheme is either perfectly secure or computationally (doubly-selectively) secure, then the PE scheme will be fully secure.
Although the pair encodings were solely introduced for PE, we show that these can also be used to construct predicate signatures, a signature analogue of PE.
More precisely, we propose a generic construction of predicate signature (PS) from pair encoding schemes.
Our construction provides unconditional signer privacy, and unforgeability in the adaptive model.
Thereafter, we instantiate many PS schemes with new results, e.g., the first practical PS schemes for regular languages, the first attribute-based signature (ABS) scheme with constant-size signatures in the adaptive model, unbounded ABS with large universes in key-policy flavor, etc.
Synthesis and biological evaluation of S-simplexides and other analogues of simplexide
Authors: Roux Amélie , Loffredo Stefania , Ferrara Anne Lise , Murphy Paul V. 
Published: July 2019

Abstract
Simplexides are natural glycolipids isolated from the marine sponge Plakortis simplex, and contain alkyl 4-O-(α-D-glucopyranosyl)-β-D-galactopyranoside. Simplexides can release of cytokines (IL-6) and chemokines (CXCL-8) from human monocytes and cause the expansion of natural killer T-cells (iNKTs) in vitro, with iNKTs contributing to the sustenance of immune homeostasis. Herein, the stereoselective syntheses of S-glycosidic analogues, i.e. S-simplexides, are described. The routes included Lewis acid promoted anomerisation of glycosyl thiols and thioglycolipids, as well as anomeric S-alkylation. Synthesis of O-glycosidic analogues are included. Heptadecanyl O- and S-glycosides as well as the 17-tritriacontyl 4-O-(α-D-glucopyranosyl)-β-D-galactopyranoside, a component of the natural simplexide isolate, all induced IL-6 and CXCL-8 production at both 10 and 30 μg/mL concentrations from PBMCs whereas the two S-simplexides were inactive. It is speculated that the lack of activity for the S-disaccharide analogue could be due to inhibition of cellular α-glucosidase, preventing degradation of the simplex disaccharide to a simpler galactopyranoside, whereas lack of activity for the S-galactolipid analogue could be due to increased conformational flexibility of S-glycosides. On the other hand, simpler unbranched O- and S-glycolipid analogues were active. Natural simplexide, and a synthetic simplexide, the 18-pentatriacontanyl 4-O-(α-D-glucopyranosyl)-β-D-galactopyranoside, were more potent than the new compounds tested.
Serum Homocysteine, VEGF and TGF-β1 dynamic change in colorectal cancer patients prior and post-operation
Authors: Ni Yayi , Xue Lihua , Zhu Guangbo , Chen Yangrong 
Published: July 2019

Abstract

Background: The aim of the study was to evaluate the serum homocysteine (Hcy), vascular endothelial growth factor (VEGF) and transforming growth factor β1 (TGF-β1) dynamic change in colorectal cancer patients pre- and post-operation.

Material and methods: One hundred and eighteen CRC patients treated with surgery (CRC group) and 56 healthy controls (Control group) were included in this work. The serum Hcy, VEGF TGF-β1 were examined by enzymatic cycle and enzyme-linked immunosorbent assay (ELISA) of the two groups. We followed patients for 12 months and out of the 118 CRC patients, 14 patients had recurrent disease. Serum Hcy, VEGF and TGF-β1 were measured before and after surgery and repeated every 2 months.

Results Serum Hcy, VEGF and TGF-β1 were 16.20 ± 4.79 μmol/L, 492.36 ± 97.32 pg/ml, 29.23 ± 7.47 pg/ml for the CRC group and 8.98 ± 3.02 μmol/L, 315.21 ± 56.28 pg/ml, 7.69 ± 2.31 pg/ml for the control groups. Serum Hcy, VEGF and TGF-β1 was significantly (p<0.05) lower after surgery in both recurrent and nonrecurrent CRC patients (p<0.05). Interestingly, serum Hcy, VEGF and TGF-β1 gradually increased with time.

Conclusion Serum Hcy, VEGF and TGF-β1 levels are elevated in CRC patients and may correlated with the post-operative disease recurrence.
Improving patient–practitioner interaction in chronic pain rehabilitation
Authors: Stinesen Baukje B. , Sneijder Petra , Köke Albère J.A. , Smeets Rob J.E.M. 
Published: July 2019

Abstract
Stimulating patients to approach their pain from a biopsychosocial perspective is central to chronic pain rehabilitation. However, conversations between patients and their healthcare professionals about the social and psychological factors that may contribute to the continuation of pain and disability can be challenging. The current scientific literature does not sufficiently pinpoint the difficulties in patient–practitioner interaction on chronic pain, and it falls short of answering the question of how a joint exploration of the social and psychological factors that might be involved in the patient’s pain and evolving disability can be enhanced. In this theoretical article, we introduce discursive psychology as a potentially valuable research perspective to gain a better understanding of the difficulties in patient–practitioner interaction in the context of chronic pain rehabilitation. Discursive psychology focuses on features of people’s talk (e.g. that of patients and practitioners) and is concerned with the social practices that people perform as part of a specific interactional context. In this paper, we provide an introduction to the main theoretical notions of discursive psychology. We illustrate how discursive psychological analyses can inform our understanding of the specific sensitivities in conversations between patients with chronic pain and their practitioners. Finally, we address how a better understanding of these sensitivities offers a gateway towards improving these conversations.
Explanation of structural differences and similarities between the AT2Al10 phases (where A=actinide, lanthanide or rare earth element and T=transition metal)
Authors: Yaniv Gili , Fuks David , Meshi Louisa 
Published: July 2019

Abstract
In the current work we have studied the crystallographic relationship between the AT2Al10 phases (where A = actinide, lanthanide and rare earth element and T = transition metal). It is known that with this stoichiometry two structure types exist: tetragonal CaCr2Al10 and orthorhombic YbFe2Al10. It was found that both CaCr2Al10 and YbFe2Al10 types are structural derivatives of the ThMn12 type structure (which has more general formula of AT
x
Al12−

x
, with x > 2). CaCr2Al10 structure has a group-subgroup relationship with the ThMn12 structure, while the relationship of the YbFe2Al10 to the ThMn12 was proved applying the strong reflection approach, suggested initially for approximants of quasi-crystals. Proposed here relationship between the studied structures explains the small difference in total energies, calculated using Density Functional Theory. Understanding the connection between these phases allows regarding AT2Al10 composition as somewhat extension of the AT
x
Al12−

x
compositional range. Due to the unique magnetic properties of the AT
x
Al12−

x
phases, tunable as a function of crystallographic structure, study of structural stability and crystallographic relationships of related phases are of outmost importance.
A Borehole Record of Late Quaternary Permafrost on Kurungnakh Island (Lena Delta, Northeastern Siberia): Reconstruction of Deposition Environments
Authors: Khazin L.B. , Khazina I.V. , Kuzmina O.B. , Ayunov D.E. , Golikov N.A. , Tsibizov L.V. 
Published: July 2019

Abstract
—Paleoenvironmenal reconstructions have been made from a multidisciplinary study of a borehole permafrost record on Kurungnakh Island (Lena delta). According to data on palynomorphs and ostracods, the clay silt units from the 10.58 to 13.54 m and 1.58 to 10.3 m core depth intervals were deposited in the Late Pleistocene (during the Karginian interstadial) and Early–Middle Holocene, respectively. The sediments were studied in terms of moisture contents, grain size distribution, mineralogy, and magnetic susceptibility, and the results were compared with published evidence from nearby natural outcrops. Quite a cold oligotrophic lake existed in the area during the Karginian period, and the deposition was interrupted by a gap recorded at a core depth of about 11 m. In the Early and Middle Holocene, the area was covered with shrub tundra vegetation.
Natural Thermal Convection in a Vertical Water-Filled Cylinder: Infrared Thermography Investigation
Authors: Demezhko D.Yu. , Khatskevich B.D. , Mindubaev M.G. 
Published: July 2019

Abstract
—Temperature logging furnishes the essential part of geothermal data. Its applications are progressively expanding due to advanced temperature loggers and data acquisition systems that ensure precise and stable measurements at high spatial and temporal resolution. However, it may be hard to achieve the full effect of the available logging facilities because of noisy temperature oscillations produced by natural convection in water-filled boreholes. A new laboratory method is suggested to study the structure of convection flows and their thermal effect by infrared thermography at conditions close to those of real temperature logging. Thermographic cameras image temperature anomalies on the outer wall of a water-filled pipe which are imprints of the convection processes in the water column. The temperature gradient on the pipe wall maintains flow of warm air ascending from a toroidal heater. It is shown experimentally using a pipe of 20 mm inner diameter that convection of fluid in the pipe forms a helical system rotating around a vertical axis at Rayleigh numbers in a range of 280 to 2800. As the Rayleigh numbers increase from 280 to 2800, the helical pitch decreases from 270 to 130 mm while the angular velocity increases from 0.7 × 10–2 to 3.4 × 10–2 rad/s. The experiment confirms the theoretically predicted dependence of standard deviation of temperature fluctuation on the temperature gradient and inner radius of the logged borehole: σT = 3G·r.
Wrong Hand, Wrong Children? The Education of Left-Handed Children in Soviet Latvia
Authors: Rubene Zanda , Daniela Linda , Medne Dace 
Published: July 2019

Left-handers have always been surrounded by stigma and controversy, and attitudes toward this group have always been rooted in the ideas and traditions of power relations existing in a given society. Thus, the goal of this study is to describe the retraining of left-handers as it was conducted in Soviet education. The impact of political power on an individual’s body-mind interaction is a significant problem in research on the creation of the “New Soviet Man.” The teaching of left-handed children in the Soviet Union is a noteworthy example of the totalitarian regime’s illusionary endeavors to change human nature. The Soviet education envisaged neither a special attitude nor any particular pedagogical strategies for the work with left-handed children. The Soviet science was based on the anthropological understanding of man as a tabula rasa, which made it possible to explain the omnipotence of Soviet pedagogy as well as the unswerving belief that it was possible to educate every child into a true member of the socialist society. The present study provides insight into the disciplining of the left-handed children’s bodies and minds using pedagogical tools that was being conducted in Soviet Latvia.
Titik Setimbang Nash pada Permainan Linear Kuadratik Non-kooperatif dengan Asumsi Keseluruhan Pemain dapat Menstabilkan Sistem
Authors: Asfa’ani Ezhari 
Published: July 2019

We discuss about Nash equilibria for the linear quadratic differential game for an infinite planning horizon. We consider an open-loop information structure. In the standard literature this problem is solved under the assumption and provide both necessary and sufficient conditions for existence of Nash equilibria for this game under the assumption that the system as a whole is stabilizable. Keywords: linear quadratic differential games, open-loop information structure
Kompetensi Pedagogik dan Profesional Mahasiswa Jurusan PAI pada Pelaksanaan PPL Tahun Akademik 2017/2018
Authors: Amir Dinasril , Basit Abdul 
Published: July 2019

Penelitian ini membahas kompetensi pedagogik dan profesional mahasiswa dalam pelaksanaan PPL, program studi Pendidikan Agama Islam. Penelitian ini merupakan jenis penelitian kualitatif dengan teknik analisis deskriptif. Adapun tempat penelitiannya di sekolah-sekolah atau madrasah di mana mahasiswa program Studi Pendidikan Agama Islam melaksanakan Praktik Pengalaman Lapangan (PPL). Data dikumpulkan dengan menggunakan metode: 1) Angket, yaitu data tentang kompetensi pedagogik dan profesional dengan pertanyaan yang berkaitan dengan kompetensi pedagogik dan profesional; 2) Dokumentasi, yaitu untuk mengetahui data-data yang berhubungan dengan Mahasiswa Pendidikan Agama Islam (PAI) yang sedang melaksanakan Praktik Pengalaman Lapangan (PPL). Hasil penelitian ini menunjukah bahwa: (1) Dari segi kompetensi pedagogik, calon pendidik (Mahasiswa Pendidikan Agama Islam) Dilihat dari data angket Mendapatkan nilai persentase 79%, dan nilai tersebut menunjukan bahwa kompetensi pedagogik Mahasiswa Jurusan Pendidikan Agama Islam (PAI) angkatan 2011 dikategorikan baik. Yakni, dalam kemampuan pemahaman karakter peserta didik dengan nilai presentase 76% (baik), perencanaan dan pelaksanaan pembelajaran dengan nilai presentrase 79% (baik) , serta dalam melakukan evaluasi dan penilaian dengan nilai presentrase 76% (baik) (2) Dari segi kompetensi profesional, calon pendidik (Mahasiswa Pendidikan Agama Islam) dilihat dari data angket mendapatkan nilai persentase 82%. Dan nilai tersebut menunjukan bahwa kompetensi profesional Mahasiswa Jurusan Pendidikan Agama Islam (PAI) angkatan 2011 dikategorikan baik sekali. Yakni dalam penguasaan materi ajar dalam pembelajaran dengan nilai presentase 86% (baik sekali,) keahlian dalam menggunakan media pembelajaran dengan nilai presentase 82% (baik sekali), serta dalam kontekstual atau menghubungkan materi ajar dengan kehidupan sehari-hari peserta didik dengan nilai presentase 90% dan dikategorikan (baik sekali).