bluuebunny/crossref_metadata_2025 huggingface dataset:
Medial Elbow Pain During the Return-to-Throwing Period After Ulnar Collateral Ligament Reconstruction in Pitchers
Authors: Keller Robert A. , Marshall Nathan E. , Limpisvasti Orr , DeGiacomo Anthony F. , Banffy Michael , ElAttrache Neal S.
Published: November 2018

Background:

Ulnar collateral ligament reconstruction (UCLR) is common in the sport of baseball, particularly among pitchers. Postoperative return-to-sport protocols have many players beginning to throw at 4 to 5 months and returning to full competition between 12 and 16 months after surgery. Medial elbow pain during the return-to-throwing period often occurs and can be difficult to manage.

Purpose:

To evaluate the incidence of medial elbow pain and associations with outcomes and revision surgery during the return-to-throwing period after UCLR.

Study Design:

Case-control study; Level of evidence, 3.

Methods:

Between the years of 2002 and 2014, all pitchers who underwent UCLR at a single institution were identified. Charts were reviewed for incidence of medial elbow pain during return to throwing, return to sport, and subsequent operative interventions, including revision ulnar collateral ligament surgery.

Results:

Of a total of 616 pitchers who underwent UCLR during the study period, 317 were included in this study. Medial elbow pain was experienced by 45.1% (143 of 317), with a mean time of complaint of 9.75 months after surgery. The groups with and without pain did not differ statistically with regard to age (pain, 20.6 years; no pain, 20.9 years) or level of competition. Of those who experienced medial elbow pain, 10.5% did not return to sport; 5.6% underwent revision UCLR; and 19.6% underwent other operative procedures at the elbow. Among those who did not experience medial elbow pain when returning to throw, 8.7% did not return to sport, with only 1.7% undergoing revision UCLR and 6.9% undergoing other operative elbow procedures.

Conclusion:

Of the pitchers evaluated in the study, approximately half reported pain during the return-to-throwing phase after UCLR. Those who experienced medial elbow pain had a higher rate of subsequent surgical intervention.
Early Childhood Development in Children Born to HIV-Infected Mothers: Perspectives From Kenyan Clinical Providers and Caregivers
Authors: McHenry Megan S. , Oyungu Eren , McAteer Carole I. , Ombitsa Ananda R. , Cheng Erika R. , Ayaya Samuel O. , Vreeman Rachel C.
Published: November 2018

Objective. To understand the perspectives of clinical providers and caregivers regarding early childhood development (ECD) in children born to HIV-infected mothers in Kenya. Methods. This was a qualitative study of provider and caregiver perspectives on ECD at 5 Kenyan HIV clinics, using semistructured interviews and focus group discussions. Constant comparison and triangulation methods were employed to elucidate the concepts of ECD. Results. Twenty-five providers and 67 caregivers participated. While providers understood ECD in terms of milestones, caregivers strongly equated ECD with physical growth. Factors affecting ECD, such as nutrition, perinatal effects, and illness, were perceived differently by providers and caregivers. Both groups generally believed that HIV-infected children would have typical ECD if adherent to their HIV treatment. Conclusions. Important considerations regarding ECD in this population were uncovered. Understanding provider and caregiver perspectives’ on ECD in HIV-exposed children is critical for promoting ECD in this community.
Impedance inversion by using the low-frequency full-waveform inversion result as an a priori model
Authors: Yuan Sanyi , Wang Shangxu , Luo Yaneng , Wei Wanwan , Wang Guanchao
Published: November 2018

Prestack acoustic full-waveform inversion (FWI) can provide long-wavelength components of the P-wave velocity by using low frequencies and long-offset direct/diving/refracted waves, which could be simulated via a large space grid, and it is weakly sensitive to density. Poststack impedance inversion can usually quickly yield high-resolution impedance, and it is sensitive to density. Therefore, we have combined these two methods to develop an FWI-driven impedance inversion. Our method first uses FWI to obtain the long-wavelength velocity with a guaranteed overlap between the high frequencies of the velocity and the low frequencies of the poststack data. Then, the fitting rock-physics relationship between the density and the velocity is adopted to translate the FWI velocity into the low-frequency impedance. Finally, the resulting low-frequency impedance is used to construct an a priori constraint for poststack impedance inversion. The method has the ability to solve the overlap between the FWI-based converted prior impedance model and poststack data, and it can thereby yield a broadband absolute impedance result. We adopt a Marmousi II model example and a real data case to test the performances of the FWI-driven impedance inversion and indicate its advantages compared with the conventional well-driven impedance inversion that uses well logs and interpreted horizons to build the prior impedance model. The synthetic data example demonstrates that well-driven impedance inversion produces a result with a relatively large deviation to the true impedance model at complex structure zones. However, FWI-driven impedance inversion favorably recovers all interesting sediment layers at complex structure zones. The real data example illustrates that well-driven impedance inversion yields a result with a distinct footprint of the prior model created from well logs and horizons. On the other hand, we find that FWI-driven impedance inversion yields a geologically reasonable solution, which not only conforms to the time-space variation trend of the well logs, but it also reveals a basin structural-depositional evolution.
A Framework to Evaluate the Benefit of Seismic Upgrading
Authors: Michel Clotaire , Duvernay Blaise , Kölz Ehrfried , Jamali Navid , Lestuzzi Pierino
Published: November 2018

The framework to evaluate the benefit of seismic upgrading of Galanis et al. (2018) is compared to that present in the Swiss seismic code for existing buildings since 2004, updated in 2017. To illustrate the comparison, the example building of Galanis et al. (2018) in Zurich is analyzed following the Swiss code. It is shown that the concept of Degree of Seismic Upgrade is not relevant for practical applications. More generally, the approach of Galanis et al. (2018) would be more suited to a risk-based framework (like the Swiss code) than to a performance-based framework like the one they followed. For existing buildings, we claim that it is appropriate to define the retrofitting strategy based on the absolute level of risk, whereas targeting the safety level of the design code is rarely cost-efficient.
Airway Compression During Transcatheter Aortic Valve Replacement via Subclavian Artery Approach: A Case Report
Authors: DeAndrade Diana S. , Smith Nicholas F. , McHugh Stephen M.
Published: November 2018

Transcatheter aortic valve replacement (TAVR) is an alternative to traditional surgery in patients considered to be at high or intermediate risk for open surgical repair of aortic stenosis. Despite its overall safety and efficacy, TAVR is associated with potentially serious complications including major vascular injury. Tracheal compression resulting from vascular pathology has been previously reported; however, airway compromise secondary to vascular injury during TAVR has not been described. We report a case of airway compression and respiratory compromise resulting from injury to the right subclavian artery during TAVR.
Οι πηγές του μαρμάρου στην Αθήνα κατά την ύστερη αρχαιόοτητα
Authors: ΘΕΟΧΑΡΗΣ (Yiannis THEOCHARIS) Γιάννης
Published: November 2018

Το ερώτημα της λειτουργίας ή μη του λατομείου της Αττικής (και ιδίως εκείνου της Πεντέλης) μετά τον 3ο αιώνα μ.Χ. μπορεί να απαντηθεί μέσα από την εξέταση αθηναϊκών κτηρίων της ύστερης αρχαιότητας. Από την εξέταση αυτή διαπιστώνεται η γενικευμένη χρήση σπολίων στα οικοδομικά προγράμματα της πόλης. Το φαινόμενο είναι γνωστό σε όλη την έκταση της αυτοκρατορίας, από την τετραρχική περίοδο και εξής, οπότε η αύξηση της οικοδομικής δραστηριότητας βοηθήθηκε από την επανάχρηση αρχιτεκτονικού υλικού.
Architectural planning and building practices at the basilica of the theater in Messene
Authors: TSIVIKIS Nikos
Published: November 2018

Based on the basilica of the Theater in Messene the architectural planning and building practices in provincial monuments of the sixth century is examined. In the basilica’s impost capitals, the use of positioning marks for the correct setting of the colonnades is observed and on the paved floor of the sanctuary auxiliary etchings are visible for the proper setting of the liturgical furnishing. This evidence offers insight into the process of building monuments like the Messenian basilica.
The katholikon churches of the monasteries of Hopovo and Papraća and their place in post-byzantine architecture
Authors: ŠUPUT Marica
Published: November 2018

This paper deals with two monastic churches from the second half of the sixteenth century. It briefly presents their architecture as a whole and then focuses on its characteristic features. Based on these traits and on certain historical circumstances, questions related to the origins of their plans and exteriors are discussed. Models are sought in ecclesiastical building practices of the post-Byzantine period, i.e. during the period when the katholikon churches of the monasteries of Hopovo and Papraća were constructed.
Τρούλλοι με δεκαεξάπλευρο τύμπανο
Authors: ΒΟΓΙΑΤΖΗΣ (Sotiris VOYADJIS) Σωτήρης
Published: November 2018

Ο τρούλλος επικρατεί τον 6ο αιώνα με την κατασκευή της Αγίας Σοφίας Κωνσταντινούπολης, για να αποτελέσει ένα από τα πιο σημαντικά χαρακτηριστικά των ορθόδοξων ναών μέχρι σήμερα. Εξετάζονται οι τρούλλοι που φέρονται από δεκαεξάπλευρα τύμπανα, ένας τύπος τρούλλου που εμφανίζεται περιορισμένα αλλά διαχρονικά. Στην ομάδα αυτή ανήκουν ναοί της επιρροής του καθολικού του Οσίου Λουκά αλλά και διάσπαρτοι ναοί σε όλη την Ελλάδα, ενώ φαίνεται ότι ορισμένοι ναοί στην Κωνσταντινούπολη επηρεάστηκαν πιθανόν από τον ελλαδικό ναό. Οι ναοί αυτοί διαχωρίζονται από τους ναούς με κυλινδρικό τύμπανο και 16 παράθυρα.
Images of saints in the wall paintings of Saint Sophia in Kiev
Authors: ZAKHAROVA Anna
Published: November 2018

The paper presents some preliminary results of a research on the wall paintings of Saint Sophia in Kiev aiming to identify the images of the saints through the analysis of iconography and medieval graffiti. Numerous images of saints constitute a significant part of St. Sophia’s iconographic program. Therefore, it is important to understand the principles for their choice and distribution. While some of these principles were in keeping with the current Byzantine tradition, others reflected ideas peculiar to the newly baptized Rus.
Ο Παλαιολόγειος ναός της Παναγίας Αγρελωπούσαινας στη Χίο: η μνημειακή ζωγραφική
Authors: ΒΑΣΣΗ (Olga VASSI) Όλγα
Published: November 2018

Στην ύπαιθρο της Χίου ιδρύθηκε στην εκπνοή του 13ου ή στην αρχή του 14ου αιώνα ένας ναός που αφιερώθηκε στην Παναγία. Η μελέτη της αρχιτεκτονικής και της ζωγραφικής του ήταν η πρώτη επιστημονική δημοσίευση του Χαραλάμπου Μπούρα, το 1960. Εδώ παρουσιάζεται το εικονογραφικό πρόγραμμα των τοιχογραφιών που τότε δεν ήταν ορατές στο σύνολό τους, σχολιάζεται η εικονογραφία πολλών παραστάσεων, εντοπίζονται οι σχέσεις της μνημειακής ζωγραφικής του ναού με τα καλλιτεχνικά ρεύματα της παλαιολόγειας εποχής και προτείνεται η χρονολόγηση της ζωγραφικής λίγο πριν από το έτος 1317.
Αμφίγραπτη εικόνα στο βυζαντινό μουσείο Καστοριάς
Authors: ΤΣΙΓΑΡΙΔΑΣ(Euthymios N. TSIGARIDAS) Ευθύμιος Ν.
Published: November 2018

Στην αμφίγραπτη εικόνα της Καστοριάς εικονίζεται στην κυρία όψη ο άγιος Γεώργιος ολόσωμος με σκηνές του βίου του και στη δευτερεύουσα οι άγιοι Θεόδωροι αντωποί. Οι δύο όψεις της εικόνας είναι σύγχρονες και αποτελούν έργο ενός ζωγράφου της Καστοριάς του τέλους του 14ου αιώνα. Ο ζωγράφος αυτός παρουσιάζει στενή εικονογραφική, τυπολογική, προσωπογραφική και τεχνοτροπική συνάφεια με τοιχογραφίες ναών της πόλεως του δεύτερου μισού του 14ου αιώνα, όπως είναι του Αγίου Γεωργίου του Βουνού (1368-1385) και κυρίως του Αγίου Αθανασίου του Μουζάκη (1383/84) και του Χριστού Ζωοδότη στο Borje της Κορυτσάς (1389/90).
Εικόνα του Χριστού Μεγάλου Αρχιερέα στη μονή Ρουσάνου Μετεώρων αποδιδόμενη στον Θεοφάνη τον Κρήτα
Authors: ΑΝΑΓΝΩΣΤΟΠΟΥΛΟΣ (Alexandros ANAGNOSTOPOULOS) Αλέξανδρος
Published: November 2018

Στη μονή Ρουσάνου Μετεώρων εκτίθεται μία φορητή εικόνα του Χριστού στον τύπο του Μεγάλου Αρχιερέα. Η εικονογραφική και τεχνοτροπική συγγένεια με την παράσταση του Χριστού Μεγάλου Αρχιερέα στη Δέηση του καθολικού της μονής Αναπαυσά και με την εικόνα του Χριστού Μεγάλου Αρχιερέα της μονής Σταυρονικήτα μάς επιτρέπει να αποδώσουμε ανεπιφύλακτα την εικόνα της μονής Ρουσάνου στα πρώιμα έργα του Θεοφάνη και να την χρονολογήσουμε γύρω στα 1527.
Η λειψανοθήκη της κάρας του Αποστόλου Ανδρέα και ο Θωμάς Παλαιολόγος
Authors: ΚΟΥΜΟΥΣΗ (Anastasia KOUMOUSSI) Αναστασία
Published: November 2018

Στο άρθρο παρουσιάζεται η επίχρυση ανθρωπόμορφη λειψανοθήκη, μέσα στην οποία το 1462 ο δεσπότης του Μυστρά Θωμάς Παλαιολόγος προσέφερε την κάρα του αποστόλου Ανδρέα στον πάπα Πίο Β΄. Πρόκειται για έργο μεταλλοτεχνίας που ανήκει ως θρησκευτική πρακτική και τεχνοτροπία στη δυτική λατρευτική παράδοση. Η ανάλυση των χαρακτηριστικών της επιτρέπει τη χρονολόγησή της στα μέσα του 15ου αιώνα και την ένταξή της σε ένα συντηρητικό καλλιτεχνικό ρεύμα της όψιμης γοτθικής περιόδου. Πιθανότερος τόπος κατασκευής της θεωρείται η δαλματική πόλη Ragusa, σταθμός στο ταξίδι του δεσπότη προς την Ιταλία.
Χαράλαμπος Mπούρας, 17 Ἰουλίου 1933 ‒ 27 Ἰουλίου 2016
Authors: ΒΟΚΟΤΟΠΟΥΛΟΣ (Panayotis L. VOCOTOPOULOS) Παναγιώτης Λ.
Published: November 2018

μη διαθέσιμη περίληψη
USING MULTIMEDIA PRESENTATIONS IN INTERACTIVE LEARNING
Authors: Фирсова Екатерина , Firsova Ekaterina
Published: November 2018

The article presents the main forms of organization of interactive learning, presents the capabilities of a computer in interactive learning. It also identifies problems of effective use of multimedia presentations and provides an example of using multimedia presentations for students in the discipline "Discrete Mathematics".
Do differences exist in the planning models across public and private hospitals?
Authors: Ochonma Ogbonnia , Nwatu Steve , Eze Bartholomew Soludo , Nwankwor Chikezie A , Henry-Arize Ifeyinwa , Igwe Sylvester , Nwodoh Chijioke
Published: November 2018

Introduction:

The hospital system in Nigeria has a dominant public sector coupled with an emerging private sector. There is an ongoing perception that public hospitals are inefficient compared to their private counterparts. These differences are being fuelled by perceived inequalities in managerial competencies. This study was conducted to explore these differing perceptions.

Methods:

A cross-sectional survey was distributed among healthcare managers in 25 hospitals. The data were analysed using the Statistical Package for Social Sciences.

Results:

The results established dominance of skills and competency for public hospital managers over private hospital managers in strategic planning (P=0.015), programme planning (P=0.007), and vision creation (P=0.003).

Conclusion:

The self-reported higher skills knowledge of public hospital managers was reinforced by the developed workforce, as well as the enhanced budgetary allocations that public hospitals received compared to their private counterparts.
Equine Review
Authors: Fiske-Jackson Andy
Published: November 2018

Introduction:

This edition of Equine Review considers papers on duration of action of mepivacaine and lidocaine, modified first or second cervical nerve transplantation technique, and open standing castration.
The effects of residual hip deformity on coronal alignment of the lower extremity in patients with unilateral slipped capital femoral epiphysis
Authors: Ucpunar H. , Tas S. K. , Camurcu Y. , Sofu H. , Mert M. , Bayhan A. I.
Published: November 2018

Purpose

The aim of our explorative study was to compare the differences in the coronal alignments of the hip, knee and ankle on the slip side and non-slip sides in patients with slipped capital femoral epiphysis (SCFE).

Methods

The study group consisted of 28 patients. On the full-length standing radiographs, measurements of articulo-trochanteric distance (ATD), neck-shaft angle (NSA), femoral offset, hip-knee-ankle axis, femur-tibial angle, mechanical axis deviation ratio (MAD-r), anatomical medial proximal femoral angle (aMPFA), mechanical lateral proximal femoral angle (mLPFA), anatomical lateral distal femoral angle (aLDFA), mechanical lateral distal femoral angle (mLDFA), knee joint line congruency angle, mechanical medial proximal tibial angle (mMPTA), mechanical lateral distal tibial angle (mLDTA), ankle joint line orientation angle (AJOA), and leg length discrepancy (LLD) were performed. The data from the slip side were compared with those from the non-slip side.

Results

At skeletal maturity, there were significant differences between the slip side and non-slip side in ATD (p <0.001), NSA (p <0.001), MAD-r (p <0.001), aMPFA (p <0.001), aLDFA (p = 0.03), mLDFA (p = 0.04), mLDTA (p = 0.02), AJOA (p <0.001) and LLD (p<0.001).

Conclusion

Residual deformity in the proximal femur after epiphyseal slip and premature epiphysiodesis could cause changes in the coronal alignment of the lower extremity. We can add lower extremity alignment examination to follow-up protocol to rule out secondary problems in patients with SCFE.

Level of Evidence

Level III, retrospective comparative study
Overproduction and Purification of Soluble Recombinant Human Granulocyte Colony Stimulating Factor in Escherichia coli Using Thioredoxin as Fusion
Authors: Agustiyanti Dian Fitria , Retnoningrum Debbie Sofie , Rachmawati Heni , Fuad Asrul Muhamad
Published: November 2018

Recombinant human Granulocyte Colony Stimulating Factor (G-CSF) has been produced in a soluble form in Escherichia coli BL21 (DE3) as a fusion protein. The open reading frame of G-CSF was synthetically constructed in previous work and was codon optimized for best expression in E. coli. In this research, the gene was fused to thioredoxin (Trx) at the N-terminal in pET32 vector. The purpose of this research was to optimize the overproduction and purification processes to obtain high yield recombinant protein in soluble form, and to characterize the Trx-G-CSF fusion protein. Overproduction was performed using IPTG induction method for 3 and 6 hours. The protein was purified by Ni-NTA affinity chromatography and separated using gradient concentration of imidazole. The purified protein was then characterized by SDS-PAGE and Western Blot analysis. Further, enterokinase was used to separate G-CSF from the fusion protein. The purified form of G-CSF was subsequently characterized using Western Blot and mass spectrometry using MALDI-TOF. The results showed that the fusion protein was successfully produced in soluble part as much as 48.25% were obtained after 3 hours of induction. The yield of  fusion protein was 67.37%  from total protein (229.65  mg protein/L culture). The Western Blot analysis showed the G-CSF band at around 18.6 kDa. Mass spectrometry with MALDI-TOF/ TOF revealed that 25.86% of amino acid residue was recognized as part of human G-CSF sequence.
Лингвистические исследования художественного слова в восприятии широкого литературоведения (на материале монографий Леон- тия Миронюка „Эволюция «не-слов» в русском языке” и Натальи Шевченко „Обреченность М. Цветаевой на неисчерпаемость”)
Authors: Chałacińska Halina
Published: November 2018

This attempt at interpretation is made in the metacontext of the “humanization of non-being” syndrome, as represented in Chekhov’s play The Seagull. This metacontext defines itself as part of the explosive meeting of Russian mental culture (crossing, abandoning…) and the concept of an underwater current accumulating energy, resulting in internal catharsis. The basis of such dynamics, with a vector oriented toward the transformation of an engaged recipient, created the opportunity of perceiving Marina Tsvetaeva’s life and work through the prism of the phenomenon of being doomed to inexhaustibility in its artistic and research-like manifestation. As part of such a methodological approach and this interpretative attempt, the following research problems, anticipating the studies of Tsvetaeva’s work, can be proposed: 1. The drama of an androgyne which is typical of our epochal thinking and which is manifested in M. Tsvetaeva’s act of creating being; 2. The phenomenon of being doomed to inexhaustibility in the context of looking for a name for the paradigm of contemporary tragedy.
Bestandsmonitoring in kulturellen Einrichtungen
Authors: Großmann Marcel , Illig Steffen , Lappe Jannik , Matějka Cornelius
Published: November 2018

Bislang werden in vielen kulturellen Einrichtungen die Umweltbedingungen für vorhandene Bestände lediglich in regelmäßigen Intervallen händisch kontrolliert. Dieses pragmatische Vorgehen ist dem Umstand geschuldet, dass für ein Monitoring in Bestandsobjekten bislang nur kommerzielle Systeme zur Verfügung stehen, die auch aufgrund des Kostenfaktors meist nur in spezialisierten Anwendungsfällen zum Einsatz kommen. Basierend auf dieser Ausgangslage wurde ein Open-Source-Framework entwickelt, das mit günstiger Hardware betrieben werden kann. An der Universitätsbibliothek Bamberg wird dieses System seit September 2017 an unterschiedlichen Standorten erfolgreich eingesetzt.
Effect of an activated charcoal product (DOAC Stop™) intended for extracting DOACs on various other APTT-prolonging anticoagulants
Authors: Exner Thomas , Ahuja Monica , Ellwood Lisa
Published: November 2018

Background

The aim of the study was to investigate the specificity of an activated charcoal-based product (DOAC Stop™) initially intended for the specific extraction of direct oral anticoagulants (DOACs) from test plasmas on a range of other anticoagulants.

Methods

Test plasmas were prepared by adding various anticoagulants to pooled normal plasma at concentrations prolonging an activated partial thromboplastin time (APTT) test by a factor of 1.5–3. These plasmas were treated with DOAC Stop™ for 5 and 20 min. Then APTTs were repeated and residual anticoagulant concentrations estimated from dose-response curves.

Results

The activated charcoal (AC)-based product was found to extract DOACs efficiently. It also bound the intravenous anticoagulants argatroban and lepirudin, but it had no effect on heparin, enoxaparin or danaparoid in plasma. Among other APTT-inhibiting agents that might be present in test plasmas from patients, it extracted protamine, aprotinin and polymyxin. It had no effect on annexin V, thrombomodulin, a typical lupus anticoagulant, a factor VIII antibody, activated protein C or its activator, but it did bind some cationic inhibitors of the APTT with molecular weight below approximately 30 kDa.

Conclusions

The AC-based product extracted DOACs efficiently with no effect on heparin-type anticoagulants. It did bind argatroban and hirudin-type anticoagulants, which might occur in plasmas from some inpatients, and APTT results obtained after its use should be interpreted after due consideration of patient medications.
Learning from tragedy: the Julia Berg story
Authors: Graber Mark L. , Berg Dan , Jerde Welcome , Kibort Phillip , Olson Andrew P.J. , Parkash Vinita
Published: November 2018

This is a case report involving diagnostic errors that resulted in the death of a 15-year-old girl, and commentaries on the case from her parents and involved providers. Julia Berg presented with fatigue, fevers, sore throat and right sided flank pain. Based on a computed tomography (CT) scan that identified an abnormal-appearing gall bladder, and markedly elevated bilirubin and “liver function tests”, she was hospitalized and ultimately underwent surgery for suspected cholecystitis and/or cholangitis. Julia died of unexplained post-operative complications. Her autopsy, and additional testing, suggested that the correct diagnosis was Epstein-Barr virus infection with acalculous cholecystitis. The correct diagnosis might have been considered had more attention been paid to her presenting symptoms, and a striking degree of lymphocytosis that was repeatedly demonstrated. The case illustrates how cognitive “biases” can contribute to harm from diagnostic error. The case has profoundly impacted the involved healthcare organization, and Julia’s parents have become leaders in helping advance awareness and education about diagnostic error and its prevention.
L

p(·)–L

q(·) boundedness of some integral operators obtained by extrapolation techniques
Authors: Urciuolo Marta , Vallejos Lucas
Published: November 2018

Given a matrix A such that

A
M

=
I

{A^{M}=I}

and

0
≤
α
<
n

{0\leq\alpha<n}

, for an exponent p satisfying

p
⁢

(

A
⁢
x

)

=

p
⁢

(
x
)

{p(Ax)=p(x)}

for a.e.

x
∈

ℝ
n

{x\in\mathbb{R}^{n}}

, using extrapolation techniques, we obtain

L

p
⁢

(
⋅
)

→

L

q
⁢

(
⋅
)

{L^{p(\,\cdot\,)}\rightarrow L^{q(\,\cdot\,)}}

boundedness,

1

q
⁢

(
⋅
)

=

1

p
⁢

(
⋅
)

-

α
n

{\frac{1}{q(\,\cdot\,)}=\frac{1}{p(\,\cdot\,)}-\frac{\alpha}{n}}

, and weak type estimates for integral operators of the form

T
α

⁢
f
⁢

(
x
)

=

∫

f
⁢

(
y
)

|

x
-

A
1

⁢
y

|

α
1

⁢
⋯
⁢

|

x
-

A
m

⁢
y

|

α
m

⁢

𝑑
y

,

T_{\alpha}f(x)=\int\frac{f(y)}{|x-A_{1}y|^{\alpha_{1}}\cdots|x-A_{m}y|^{\alpha%
_{m}}}\,dy,

where

A
1

,
…
,

A
m

{A_{1},\dots,A_{m}}

are different powers of A such that

A
i

-

A
j

{A_{i}-A_{j}}

is invertible for

i
≠
j

{i\neq j}

,

α
1

+
⋯
+

α
m

=

n
-
α

{\alpha_{1}+\cdots+\alpha_{m}=n-\alpha}

.
We give some generalizations of these results.
An Efficient Lossless ROI Image Compression Using Wavelet-Based Modified Region Growing Algorithm
Authors: Sreenivasulu P. , Varadarajan S.
Published: November 2018

Nowadays, medical imaging and telemedicine are increasingly being utilized on a huge scale. The expanding interest in storing and sending medical images brings a lack of adequate memory spaces and transmission bandwidth. To resolve these issues, compression was introduced. The main aim of lossless image compression is to improve accuracy, reduce the bit rate, and improve the compression efficiency for the storage and transmission of medical images while maintaining an acceptable image quality for diagnosis purposes. In this paper, we propose lossless medical image compression using wavelet transform and encoding method. Basically, the proposed image compression system comprises three modules: (i) segmentation, (ii) image compression, and (iii) image decompression. First, the input medical image is segmented into region of interest (ROI) and non-ROI using a modified region growing algorithm. Subsequently, the ROI is compressed by discrete cosine transform and set partitioning in hierarchical tree encoding method, and the non-ROI is compressed by discrete wavelet transform and merging-based Huffman encoding method. Finally, the compressed image combination of the compressed ROI and non-ROI is obtained. Then, in the decompression stage, the original medical image is extracted using the reverse procedure. The experimentation was carried out using different medical images, and the proposed method obtained better results compared to different other methods.
Effect of aggregate gradation on rutting of asphalt concrete by using a wheel tracking device in Vietnam
Authors: Nguyen Hoang Long , Le Thanh Hai
Published: November 2018

This paper presents the relationship between rutting and aggregate gradation of asphalt concrete using a wheel tracking device at 60°C, with 30,000 cycles in air. The experiment was carried out on hot mix asphalt samples using three aggregate gradations which included maximum aggregate sizes of 9.5 mm, 12.5 mm and 19 mm. The result of the experiment showed that the maximum aggregate size has a great influence on the rutting of asphalt concrete.
2D:4D Ratio differs in ischemic stroke: A single center experience
Authors: Yang Ke , Ding XianHui , Zhou ZhiMing , Shi XiaoLei
Published: November 2018

Background

The index to ring finger length (2D:4D) ratio is a proxy biomarker for prenatal exposure of sex hormones. Sex hormones are associated with the pathogenesis of ischemic stroke. The purpose of the study was to demonstrate the association between 2D:4D and ischemic stroke.

Methodology

This study retrospectively reviewed the data of 100 patients with first ever ischemic stroke between September, 2016 and June, 2017. The lengths of index finger and ring finger of both hands were measured using electronic calipers and calculated for 2D:4D ratios. Receive operating characteristic (ROC) mode was used to detect predicting performance of 2D:4D ratios for ischemic stroke.

Results

2D:4D ratios in ischemic stroke patients were higher than controls in both hands (P < 0.05), except right 2D:4D ratio in females. The ROC analyses showed that the area under the curve (AUC) were 0.635 (95%CI: 0.527-0.743) for left 2D:4D ratio, and 0.647 for right (95%CI: 0.539-0.755) (P < 0.05). The AUC of left and right 2D:4D ratio in male were 0.667 (95%CI: 0.514-0.820) and 0.670 (95%CI: 0.519-0.822) (P < 0.05). In female, no significance were found in ROC analysis. And there were no correlation between 2D:4D value and stroke severity (P > 0.05).

Conclusions

The current study indicated that the diagnostic value of 2D:4D ratio was limited in ischemic stroke. Further research is required to explore the role of it in screening ischemic stroke.
Various Ways of Adiabatic Expansion in Organic Rankine Cycle (ORC) and in Trilateral Flash Cycle (TFC)
Authors: Imre Attila R. , Groniewsky Axel
Published: November 2018

For energy production and conversion, the use of thermodynamic cycles is still the most common way. To find the optimal solution is a multiparametric optimization problem, where some parameters are related to thermodynamic and physical chemistry, while others are associated with costs, safety, or even environmental issues. Concerning the thermodynamic aspects of the design, the selection of the working fluid is one of the crucial points. Here, we are going to show different types of adiabatic expansion processes in various pure working fluids, pointing out the ones preferred in Organic Rankine Cycles or in Trilateral Flash Cycles. The effect of these expansions on the layout of the cycles will also be presented. Finally, we are giving a few thumb-rules, derived from thermodynamic studies, useful for energy engineers to select the proper working fluid for a given thermal system.
THE INFLUENCE OF GUIDED INQUIRY LEARNING ASSISTED FLASH APPLICATION ON ELECTROLYTE SOLUTION MATERIALS AGAINST THE RESULTS OF STUDENTS
Authors: Dewi Ratna Kumala , Haryani Sri , Wardani Sri
Published: November 2018

This study aims to determine how much influence of guided inquiry learning assisted flash application on electrolyte solution materials to the results of student class X learning in SMA Negeri 8 Semarang. This research method using an experimental method. The sampling technique used cluster random sampling technique. Method of data collection was done with documentation to find out the population, questionnaire for student responses, test (pretest and posttest), and observation to assess aspects of affective and psychomotor learning outcomes. Hypothesis test used in this research is an analysis of influence between variables, a test of difference of two means, and coefficient of determination. The result of different test of two mean value of posttest tcount is 6.68 more than ttable 1.995 with dk = 70 and 5% significance level mean that experiment class learning result is higher than control class. Implementation of guided inquiry learning model with flash application contributes 64% of student learning outcomes. Display of flash application using Software Adobe Flash CS 6. Based on the results of research, can be concluded that guided inquiry learning assisted flash application has a positive effect on student learning outcomes in SMA Negeri 8 Semarang on the material of electrolyte and nonelectrolyte solution.
THE ROLE OF KNOWLEDGE MASTERY AND SCIENCE PROCESS SKILLS TO INCREASE THE SCIENTIFIC CREATIVITY
Authors: Zulkarnaen Zulkarnaen , Supardi ZA Imam , Jatmiko Budi
Published: November 2018

The purpose of this research is to know how big the role of mastery of knowledge and science process skills to improve scientific creativity, using C3PDR teaching model, that is teaching model that encourage and utilize knowledge mastery, science process skill, creative thinking technique and motivation to improve student's scientific creativity. The data used are the results of pre-test and post-test of: the mastery of knowledge, scientific process skills and scientific creativity, as a result of the implementation of the model conducted in the 2015/2016 learning year. The sample of this research is 160 students of 8th grade divided into 5 classes in two schools in Samarinda city. The magnitude of the role is expressed by the coefficient of determination (r2) and the probability value (p). Scores of the mastery of knowledge, scientific process skills and scientific creativity are grouped into 5 levels. Data were analyzed using Kendall Tau test b. The results showed: 1) mastery of knowledge plays a significant role to increase of scientific creativity by 30% indicated by the mode r2> 0.3 and p mode <0.0001, in the weak category, 2) the science process skills play a significant role of 20% indicated by the mode r2> 0.20 and p mode <0.0001, in the weak category. Mastery of knowledge that plays a role in scientific creativity is the mastery of knowledge more broadly and in more detail. The science process skills that plays a role in scientific creativity is of determining the variables. How the role of mastery of knowledge and skills of scientific processes in enhancing scientific creativity is discussed in this article.
DEVELOPMENT OF MULTIMEDIA WEB-BASED PHYSICS LEARNING TOOLS TO STRENGTHEN STUDENTS’ CHARACTERS
Authors: Akhlis Isa , Aryani Nila Prasetya
Published: November 2018

This research intended to obtain an initial description of students and environment on peace-loving, environmental caring, learning methods, learning materials, and learning media applied in Physics lesson at a high school; moreover, to examine the validity of high school physic learning materials and multimedia web-based physics learning tools in strengthening the students’ characters. The data collection methods employed were (1) documentation, to get the prior data of high school physic materials; (2) observation, to collect the data of students’ initial characters; (3) questionnaire, to obtain the data of learning method, teaching materials, and learning media adopted in the learning process; and (4) validation, to test the developed learning tools’ validity. The results showed that generally, the students have possessed the character of peace-loving, while they rarely owned the environmental caring. In addition, the developed learning tools achieved a good assessment and were declared valid.
A Case of Successful Iliofemoral Vein Stenting from Great Saphenous Vein Access
Authors: Jung Hae Won , Ahn Chul-Min , Ko Young-Guk
Published: November 2018

Chronic venous disease is strongly associated with morbidity and leads to considerable medical costs. Therefore, its clinical significance is very important. Currently, iliac vein stenting is the first treatment option for chronic venous disease due to iliac vein obstruction. For iliac vein stenting, ipsilateral femoral or popliteal vein access is common. However, great saphenous vein access may be a good alternative if there is obstruction in the ipsilateral femoropopliteal vein. Until now, there has been no reported case of successful iliac vein stenting using great saphenous vein access. We report the first successful case of iliofemoral vein stenting from great saphenous vein access.
Sex Differences in Mortality and Morbidity of Infants Born at Less Than 30 Weeks’ Gestation
Authors: Boghossian Nansi S. , Geraci Marco , Edwards Erika M. , Horbar Jeffrey D.
Published: November 2018

OBJECTIVE:

To examine whether changes in mortality and morbidities have benefited male more than female infants.

METHODS:

Infants of gestational ages 22 to 29 weeks born between January 2006 and December 2016 at a Vermont Oxford Network center in the United States were studied. We examined mortality and morbidity rate differences and 95% confidence intervals by sex and birth year. We tested temporal differences in mortality and morbidity rates between boys and girls by means of a likelihood ratio test (LRT) on nested binomial regression models with log links.

RESULTS:

A total of 205 750 infants were studied; 97 048 (47.2%) infants were girls. The rate for mortality and chronic lung disease decreased over time faster for boys than for girls (LRT P < .001 for mortality; P = .006 for lung disease). Restricting to centers that remained throughout the entire study period did not change all the above but additionally revealed a significant year-sex interaction for respiratory distress syndrome, with a faster decline among boys (LRT P = .04). Morbidities, including patent ductus arteriosus, necrotizing enterocolitis, early-onset sepsis, late-onset sepsis, severe intraventricular hemorrhage, severe retinopathy of prematurity, and pneumothorax, revealed a constant rate difference between boys and girls over time.

CONCLUSIONS:

Compared with girls, male infants born at <30 weeks’ gestation experienced faster declines in mortality, respiratory distress syndrome, and chronic lung disease over an 11-year period. Future research should investigate which causes of death declined among boys and whether their improved survival has been accompanied by a change in their neurodevelopmental impairment rate.
Evaluación e intervención educativa en el aula con alumnado disruptivo dentro del marco de una escuela inclusiva
Authors: Badia Martín M.del Mar , Daura Luján Gisela
Published: November 2018

La investigación Evaluación e intervención educativa con alumnos disruptivos dentro del marco de una escuela inclusiva, de la cual se deriva este artículo, se ha realizado durante el primer y segundo trimestre del curso escolar 2015-2016. El objetivo principal ha sido evaluar a los agentes implicados en el aula en el marco de una escuela ordinaria, donde se presenta alumnado disruptivo. Se elaboraron una serie de propuestas, y estrategias metodológicas para profesorado, que le permitiera entender y sensibilizarse de la problemática conductual de una parte de sus estudiantes y   generar respuestas adecuadas a sus necesidades. Se partió de la observación y análisis de un curso de primero de educación secundaria obligatoria, a partir de ahora ESO (26 estudiante) y se detectó a quienes, por sus características, se consideró estudiantado disruptivo. A partir de esta detección, se abordaron las consecuencias que esto provoca en el funcionamiento rutinario, sus posibles causas, y se analizaron las percepciones que este grupo tenía de estas situaciones de disrupción. El personal implicado (de tutoría, docentes de las materias, jefaturas de estudios, directivo, departamento de orientación, grupo de mediación, conserjería... ) a partir de entrevistas y cuestionarios, ayudó a obtener conclusiones útiles para conseguir los objetivos propuestos. Los resultados avalan que las características familiares, la implicación y participación en todo el proceso educativo han sido de gran utilidad para saber cuál es la percepción que tienen de la escuela, del aula, del alumnado y de todo el personal docente, para poder establecer una serie de herramientas válidas para mejorar su comportamiento. Entre algunos de los datos obtenidos se puede observar unos resultados muy parecidos respecto a la dimensión relacional (conflicto) y a la dimensión de desarrollo (autonomía y moralidad-religiosidad). Por lo que respecta a la dimensión de estabilidad, tanto estudiantes como familias dan mucha importancia a la organización y planificación de las actividades y responsabilidades de la familia, y con menos grado al que hace referencia a las normas y procedimientos establecidos a la misma familia.
Teorías subjetivas en docentes sobre el aprendizaje y desarrollo socioemocional: Un estudio de caso
Authors: Cuadra Martínez David Jorge , Salgado Roa Jorge Alejandro , Lería Dulčić Francisco José , Menares Ossandón Néstor Dante
Published: November 2018

Con el objeto de describir e interpretar las teorías subjetivas (TS) acerca del aprendizaje y desarrollo socioemocional estudiantil, que presenta el profesorado de escuelas públicas de educación básica y secundaria de la región de Atacama, Chile, se realizó un estudio descriptivo interpretativo, basado en el uso de metodología cualitativa y un diseño de estudio de caso. El muestreo fue de tipo intencionado y quedó constituido por 19 docentes de 2 escuelas de enseñanza básica y 1 establecimiento de educación primaria y secundaria, quienes se seleccionaron con el criterio de representatividad de casos. Se aplicaron 8 entrevistas episódicas y 2 grupos de discusión. Los datos se analizaron mediante la técnica de análisis de contenido de la teoría fundamentada y análisis específico para TS. Se encontró (a) un significado subjetivo del aprendizaje y desarrollo socioemocional, que lo relaciona con un sentido de vida en el estudiantado, además de la enseñanza de valores, hábitos y habilidades de relación interpersonal; (b) factores sociales, familiares, escolares e individuales que el grupo participante asocia con este proceso y que actúa como (c) facilitadores y obstaculizadores; (d) un proceso de desarrollo socioemocional evolutivo del estudiantado, que se describe en cuatro fases y prácticas pedagógicas necesarias de adecuar frente a estos períodos; (e) propuestas para la educación socioemocional y (f) una caracterización de la formación docente para la educación socioemocional, que considera experiencias de aprendizaje formales e informales. En la discusión se analizan las características de las TS encontradas, su relación con las prácticas pedagógicas y la formación del profesorado.
El desempeño del docente como factor asociado a la calidad educativa en América Latina
Authors: Escribano Hervis Elmys
Published: November 2018

El tema de este ensayo se ubica en los estudios actuales sobre calidad de la educación y, en este caso, la calidad asociada al desempeño docente, esta relación aparece contextualizada en América Latina. El propósito que se sigue con este trabajo es argumentar la significación y el lugar que ocupa el desempeño docente como factor directamente asociado a la calidad educativa. Se sostienen algunas ideas básicas: a saber, América Latina no ha satisfecho metas elementales en cuanto a equidad y justicia en el acceso a la educación, lo que representa un lastre en el trabajo por la calidad de este servicio; la calidad educativa está asociada a un conjunto de factores entre los que se cuentan los factores económicos, políticos, culturales, científicos y tecnológicos, así como un importante factor humano: el desempeño docente, que resulta vital según la postura que se sostiene. En ese orden, se señalan las limitaciones que se presentan hoy en el proceso de formación inicial y continua del personal docente, así como los desafíos que debe encarar como parte de su desempeño para brindar una respuesta coherente que implica una educación de calidad en el presente siglo y los cambios sociales, culturales y tecnológicos que se viven a diario. Este ensayo es la expresión de una sistematización teórica, sobre la base de consultas de diversas fuentes sobre el tema, en la que se resaltan, por su valor, informes de organismos internacionales.
Apropiación de tecnologías de comunicación e información en el nivel de educación media superior. Transiciones en curso
Authors: Sagástegui Rodríguez Diana
Published: November 2018

En la última década, diversos estudios internacionales han mostrado que los esfuerzos gubernamentales por dotar a las escuelas de tecnologías de información y comunicación (TIC) no han tenido los resultados esperados de mejora educativa. Para aportar en la comprensión de este fenómeno, se examinaron las formas de apropiación de tecnologías de información y comunicación (TIC) en escuelas públicas de nivel medio superior. Esta perspectiva analítica subraya el papel activo de estudiantes que ponen en juego un conjunto de intereses y significados al utilizar los dispositivos tecnológicos en situaciones específicas de sus contextos escolares, generando, frecuentemente, prácticas no previstas, distintas a las proyectadas (Andrés, 2014; Crovi, 2013; Laffey, 2004; Toboso-Martín 2013; Weber, Pisani y Francis, 2007). El estudio fue realizado en siete planteles escolares, mediante un acercamiento metodológico mixto, que incluyó aplicación de cuestionarios, observación participante y grupos de discusión. Los hallazgos muestran formas de apropiación caracterizadas por usos individualizados y procesos académicos rudimentarios en la consulta de información en línea y su referenciación, en un contexto escolar con acceso restringido a equipos de cómputo, deficiente conectividad en red, y ausencia de requerimientos pedagógicos en materia de documentación académica. Se discuten las implicaciones educativas de esta situación y se formulan cuestiones clave para enfrentar los desafíos que conllevan.
Gambling disorder, increased mortality, suicidality, and associated comorbidity: A longitudinal nationwide register study
Authors: Karlsson Anna , Håkansson Anders
Published: November 2018

Background and aims

Gambling disorder (GD) appears to be an independent risk factor for suicide, and all-cause mortality has been sparsely studied in patients with GD. This study aims to explore mortality and suicide rates in individuals with GD compared to the general population as well as explore risk factors associated with all-cause mortality and suicide mortality.

Methods

This is a nationwide register study on 2,099 individuals with a GD diagnosis in the Swedish inpatient and/or outpatient specialist health care system between the years of 2005–2016. Comorbid diagnoses from treatment episodes included in national registers were categorized into diagnostic groups according to the 10th revision of International Classification of Diseases, and prevalence rates (any occurrence during 2005–2016) were calculated for each diagnostic group. Multivariate Cox regression analyses on risk factors for death and suicide were performed, controlling for age, gender, and major categories of comorbidity. Standardized mortality ratios (SMRs) were calculated for men and women with regard to overall mortality and suicide compared to the general Swedish population.

Results

The population consisted of 1,625 men and 474 women ranging from 18 to 83 years of age at first GD diagnosis (mean: 36.5 years). Sixty-seven individuals passed away, among whom 21 deaths were due to suicide. SMR calculations showed a 1.8-fold increase in mortality for individuals 20–74 years old with GD compared to the general population, and a 15-fold increase in suicide mortality. All-cause mortality was predicted by higher age and any treatment episode for cardiovascular disease, whereas suicide death was predicted by depression.

Discussion and conclusions

Mortality and suicide rates are significantly elevated among individuals with GD. Although common mental health comorbidities did not predict overall mortality, depression predicted suicide death. Findings call for attention to long-term risk of death in GD patients and interventions against comorbid health problems.