bluuebunny/crossref_metadata_2025 huggingface dataset:
Radiographic Analysis of Surgically Treated Flatfoot Deformity in Children with Cerebral Palsy
Authors: Kerrigan Alicia , Kishta Waleed
Published: September 2018

Category:

Midfoot/Forefoot

Introduction/Purpose:

Pes planovalgus is the most common foot deformity in children with cerebral palsy (CP). Many of these patients become functionally limited and require surgical intervention. The objectives of this study are to apply previously validated radiographic parameters to radiographs of children with CP who have undergone surgical intervention for pes planovalgus deformity and to assess if these radiographic parameters show improvements post-operatively. Furthermore, this study aims to determine which of these parameters can most accurately be used to quantify correction post-surgery.

Methods:

A retrospective review was performed to identify patients aged five to 17 with a diagnosis of CP who underwent lateral calcaneal lengthening osteotomy for pes planovalgus between 2006 and 2015 at London Health Sciences Center. The previously validated radiographic measurements were applied to pre-operative and post-operative radiographs. A normality test was performed to observe whether participants were normally distributed with regard to the severity of their deformity. Paired T-test and Wilcoxon signed-rank test were used to compare changes in radiographic measurements from before and after surgery.

Results:

Seventeen patients met the inclusion criteria. The average age of selected patients was 13.06 years (range 9.42-16.75 years). This included 11 males and six females, all with spastic CP (12 diplegic, five hemiplegic). Of these patients, 11 underwent bilateral surgery and six underwent unilateral surgery (28 feet). These patients were followed post-operatively for a mean of 7.97 months (range 1.5-20 months). In comparing the radiographs from before and after surgery, statistically significant changes were seen in five out of the seven measurements. Talonavicular coverage angle was found to have the most significant change post-correction.

Conclusion:

The previously validated radiographic parameters used to assess foot and ankle deformity can be applied to the surgically treated pes planovalgus foot in patients with CP. It was found that five out of the seven measurements used to assess foot deformity changed significantly with surgical intervention. Talonavicular coverage angle was found to be the most accurate measure for post-surgical correction. This is the first study to apply these parameters to CP patients with surgically treated flatfoot deformity. Lateral calcaneal lengthening osteotomy significantly improves these radiographic measures.
Prognostic Risk Factors for Complications Associated with Below the Knee Amputations
Authors: Ni Jason , Lukosius Eric , Saloky Kaitlin , Walley Kempland , Ludwick Leanne , Stauch Chris , Juliano Paul , Aydogan Umur , Aynardi Michael
Published: September 2018

Category:

Other

Introduction/Purpose:

Below the knee amputation (BKA) is an effective surgical procedure for individuals with severe injury or infection to their lower extremities. However, patients who receive these procedures are subject to significant morbidity and a high rate of postoperative complications due to the presence of multiple concomitant comorbidities. Despite the wide practice of this intervention, prognostic risk factors aiding in predicting surgical outcomes in these patients are poorly understood. The purpose of this study is to evaluate risk factors that may contribute to the outcomes of BKA procedures.

Methods:

The clinical and radiographic outcomes for 89 patients ages 19-90 who underwent BKA were retrospectively evaluated from 2012-2017. Postoperative complications of mortality, infection, and reoperation were evaluated with patient and surgical variables. Patient variables included: age, ambulatory status, obesity, diabetes, HbA1C2 levels, neuropathy, smoking, Charlson Comorbidity Index (CCI), and American Society of Anesthesiologists (ASA) classification. Surgical variables evaluated included: presence of pre-op infection, pre-op ambulatory status, tourniquet time, tourniquet pressure, and usage of prophylactic antibiotics.

Results:

Of the patients evaluated there was an overall complication rate of 49% (44/89) and a mortality rate of 19% (17/89). Patients with diabetes (p=.035), a greater score on the Charlson Comorbidity Index (p=.001), and an ASA classification =3 (p=.005) were associated with a greater risk of mortality. Operative values (i.e. tourniquet time, tourniquet pressure etc.) did not affect patient mortality rates in a significant way, but there was a higher incidence of complications (i.e. mortality, post-op infections, and reoperations) with patients with pre-operative infections.

Conclusion:

Diabetes, a higher CCI score and a greater ASA value were found to be significant predictors of patient mortality after BKA (p<0.05). Future perioperative optimization in these patients identified as high risk may improve patient outcomes in the future.
Short-term Complications, Reoperations, and Radiographic Outcomes of the Infinity Total Ankle Arthroplasty
Authors: Saito Guilherme , Sanders Austin , de Cesar Netto Cesar , O’Malley Martin , Ellis Scott , Demetracopoulos Constantine
Published: September 2018

Category:

Ankle Arthritis

Introduction/Purpose:

With the increasing use of total ankle arthroplasty (TAA), new implants with varied configurations are being developed every year. This study aims to provide the early complications, reoperations and radiographic and clinical outcomes of the Infinity TAA. To date, clinical results of this novel fixed-bearing implant have not been published.

Methods:

A retrospective analysis of 64 consecutive ankles that underwent a primary Infinity TAA from July 2014 to April 2016 was performed. Patients had an average follow-up of 24.5 (range, 18-39) months. Medical records were reviewed to determine the incidence of complications, reoperations and revisions. Radiographic outcomes included preoperative and postoperative tibiotalar alignment, tibial implant positioning, the presence of periprosthetic radiolucency and cysts, and evidence of subsidence or loosening. Additionally, patient-reported outcomes were analyzed with the Foot and Ankle Outcome Score (FAOS) preoperatively and 1-year postoperatively.

Results:

Survivorship of the implant was 95.3%. Fourteen ankles (21.8%) presented a total of 17 complications (Table 1). A total of 12 reoperations were necessary in 11 ankles (17.1%). Revision surgery was indicated for 3 ankles (4.7%) due to isolated subsidence of the tibial implant in 2 cases and due to subsidence of both the tibial and talar components in 1 case. Tibiotalar coronal deformity was significantly improved after surgery (P < .0001) and maintained during latest follow-up (P = .81). Periprosthetic radiolucent lines were observed around the tibial component in 20 ankles (31%) and around the talar component in 2 ankles (3.1%). A tibial cyst was observed in 1 ankle (1.5%). Outcome scores were significantly improved for all FAOS components analyzed (P < .0001).

Conclusion:

Most complications observed in the study were minor and successfully treated with a single reoperation procedure or nonoperatively. Failures and radiographic abnormalities were most commonly related to the tibial implant. Further studies with longer follow-up are needed to evaluate the survivorship of the tibial implant in the long-term.
Risk factors for intra-operative and post-operative fractures associated with primary total ankle replacement surgery - a data linkage study from the UK National Joint Registry
Authors: Zaidi Razi , Goldberg Andrew
Published: September 2018

Category:

Ankle

Introduction/Purpose:

Intra and post-operative fractures are recognised complications of total ankle replacement (TAR) surgery. Intra-operative fractures are captured on the National Joint Registry (NJR) in the UK. The NJR has been capturing data on ankle replacement surgery since April 2010 and the number of TARs on the register is approaching 4000. Post-operative fractures are captured in the Hospital Episodes Statistics (HES) database. HES stores all patients admitted to NHS hospitals in England and captures 125 million records each year. Diagnostic information is stored using the International Classification of Diseases (ICD) and operative details using the Office of Population, Censuses and Surveys Classification (OPCS) codes. The purpose of this work was to determine the rate of intra and post-operative fracture with primary TAR and determine risk factors.

Methods:

A data-linkage study of the UK National Joint Registry (NJR) data and Hospital Episodes Statistics (HES) database was peformed using the first 3 years of NJR data. These two databases were linked in a deterministic fashion. 1522 NJR records were linked with the HES data set of over 90 million records. 1110 records were able to linked and available for analysis. Unlinked NJR data was analysed to identify intra-operative fractures. Linked data was analysed to identify post-operative fractures using ICD codes. Logistic regression was used to model predictors of intra and post-operative fractures. Every model was adjusted for patient characteristics including age, BMI, comorbidity and ASA grade.

Results:

The rate of intra-operative fracture was 2.69% (95% CI 2.67% to 2.74%). When looking at patient characteristics no significant predictors emerged. Logistic regression adjusted for patient characteristics showed that patients with rheumatoid arthritis were twice as likely to have a intra-operative fractures. The rate of post-operative fracture in the 12 months following primary TAR was 1.08% (95% CI 1.05% to 1.14%). Age emerged as a risk factor with a 5 five fold increase in risk of post-operative fracture with age 65-74 compared with those below 65. Adjusted logistic regression showed an increase risk of post-operative fracture in rheumatoid patients, hybrid operations and with those with multiple concurrent procedures. The risk of fracture was doubled with one associated procedure and tripled with two procedures.

Conclusion:

The rate of intra and post-operative fracture associated with primary total ankle replacement is low. However care should be taken with patients over 65 as they are at greater risk of intra operative fractures. Patients with rheumatoid arthritis are at greater risk of both, likely due to the effect of drug treatment. All efforts should be made to review medications and bone protective medication prescribed for these patents when undergoing TAR.
Platelet heterogeneity in activation-induced glycoprotein shedding: functional effects
Authors: Baaten Constance C. F. M. J. , Swieringa Frauke , Misztal Tomasz , Mastenbroek Tom G. , Feijge Marion A. H. , Bock Paul E. , Donners Marjo M. P. C. , Collins Peter W. , Li Renhao , van der Meijden Paola E. J. , Heemskerk Johan W. M.
Published: September 2018

The platelet receptors glycoprotein Ibα (GPIbα) and GPVI are known to be cleaved by members of a disintegrin and metalloprotease (ADAM) family (ADAM10 and ADAM17), but the mechanisms and consequences of this shedding are not well understood. Our results revealed that (1) glycoprotein shedding is confined to distinct platelet populations showing near-complete shedding, (2) the heterogeneity between (non)shed platelets is independent of agonist type but coincides with exposure of phosphatidylserine (PS), and (3) distinct pathways of shedding are induced by elevated Ca2+, low Ca2+ protein kinase C (PKC), or apoptotic activation. Furthermore, we found that receptor shedding reduces binding of von Willebrand factor, enhances binding of coagulation factors, and augments fibrin formation. In response to Ca2+-increasing agents, shedding of GPIbα was abolished by ADAM10/17 inhibition but not by blockage of calpain. Stimulation of PKC induced shedding of only GPIbα, which was annulled by kinase inhibition. The proapoptotic agent ABT-737 induced shedding, which was caspase dependent. In Scott syndrome platelets that are deficient in Ca2+-dependent PS exposure, shedding occurred normally, indicating that PS exposure is not a prerequisite for ADAM activity. In whole-blood thrombus formation, ADAM-dependent glycoprotein shedding enhanced thrombin generation and fibrin formation. Together, these findings indicate that 2 major activation pathways can evoke ADAM-mediated glycoprotein shedding in distinct platelet populations and that shedding modulates platelet function from less adhesive to more procoagulant.
Phenotype description and response to thrombopoietin receptor agonist in DIAPH1-related disorder
Authors: Westbury Sarah K. , Downes Kate , Burney Claire , Lozano Maria L. , Obaji Samya G. , Toh Cheng Hock , Sevivas Teresa , Morgan Neil V. , Erber Wendy N. , Kempster Carly , Moore Samantha F. , Thys Chantal , Papadia Sofia , Ouwehand Willem H. ,   NIHR BioResource–Rare Diseases, Laffan Michael A. , Gomez Keith , Freson Kathleen , Rivera Jose , Mumford Andrew D.
Published: September 2018

Key Points

DIAPH1-related disorder has a bilineage hematological phenotype of macrothrombocytopenia and neutropenia associated with hearing loss. Eltrombopag increased proplatelet formation from cultured DIAPH1-related disorder megakaryocytes and improved platelet counts in vivo.
UPA-seq: prediction of functional lncRNAs using differential sensitivity to UV crosslinking
Authors: Komatsu Taiwa , Yokoi Saori , Fujii Koichi , Mito Mari , Kimura Yusuke , Iwasaki Shintaro , Nakagawa Shinichi
Published: September 2018

While a large number of long noncoding RNAs (lncRNAs) are transcribed from the genome of higher eukaryotes, systematic prediction of their functionality has been challenging due to the lack of conserved sequence motifs or structures. Assuming that some lncRNAs function as large ribonucleoprotein complexes and thus are easily crosslinked to proteins upon UV irradiation, we performed RNA-seq analyses of RNAs recovered from the aqueous phase after UV irradiation and phenol-chloroform extraction (UPA-seq). As expected, the numbers of UPA-seq reads mapped to known functional lncRNAs were remarkably reduced upon UV irradiation. Comparison with ENCODE eCLIP data revealed that lncRNAs that exhibited greater decreases upon UV irradiation preferentially associated with proteins containing prion-like domains (PrLDs). Fluorescent in situ hybridization (FISH) analyses revealed the nuclear localization of novel functional lncRNA candidates, including one that accumulated at the site of transcription. We propose that UPA-seq provides a useful tool for the selection of lncRNA candidates to be analyzed in depth in subsequent functional studies.
Risk factors for community-acquired Escherichia coli bacteraemia: a systematic review protocol
Authors: Aryee Anna , Härmälä Suvi , Shallcross Laura , Hayward Andrew
Published: September 2018

Introduction: Rates of community-acquired Escherichia coli bacteraemia (ECB) have been consistently rising. As rates of antimicrobial resistance (AMR), particularly in Gram-negative bacteria, are also increasing, this is of concern both for management of individual patients and healthcare systems. There is currently little data on the risk factors for development of community-acquired ECB: this review aims to identify these risk factors in order to inform community interventions to reduce ECB as well as antibiotic prescribing policy.

Methods and analysis: We will search Medline (Ovid), Embase (Ovid), Web of Science/Scopus and the Cochrane Central Register of Controlled Trials for published reports on observational and experimental primary research studies involving patients admitted to hospital with community-acquired ECB. Two reviewers will independently screen the studies for eligibility, perform data collection and assess study quality and risk of bias. Random effects meta-analyses will be performed if appropriate.

Ethics and dissemination: No primary data will be collected for this study and so formal ethical approval is not required. We will publish the results of our review in relevant peer-reviewed medical journals, and will also seek to present them at relevant medical conferences.

PROSPERO registration number: CRD42018104402
An analysis of psychiatric services provided to adults in 2010–2014 based on the National Health Fund data
Authors: Anczewska Marta , Biechowska Daria , Galecki Piotr , Janas-Kozik Małgorzata , Koń Beata , Skrzypkowska-Brancewicz Blanka , Śremska Anna , Urbański Filip , Więckowska Barbara , Zięba Mariusz , Kucharska Katarzyna
Published: September 2018

Cel pracy

Badanie wskaźników pozwalających na poprawę zdrowia populacji poprzez m.in. poprawę jakości udzielanych świadczeń oraz większą do nich dostępność jest jednym z priorytetów Światowej Organizacji Zdrowia (WHO). W Polsce ma to szczególnie istotne znaczenie
w okresie reformy opieki psychiatrycznej, zgodnej z wytycznymi Narodowego Programu Ochrony Zdrowia Psychicznego.
Celem prezentowanego opracowania jest analiza świadczeń psychiatrycznych udzielonych osobom dorosłym i sprawozdanych do Narodowego Funduszu Zdrowia w latach 2010-2014.

Metoda

W prezentowanej pracy autorzy rozszerzyli informacje zawarte w części drugiej map potrzeb zdrowotnych – oprócz oceny świadczeń udzielonych osobom dorosłym w 2014r. przedstawiono analizę świadczeń z lat 2010-2014 łącznie. Zgodnie z danymi płatnika, w latach 2010-2014 stale wzrastała zarówno liczba osób, którym udzielono świadczeń z powodu zaburzeń psychicznych, jak i łączna liczba udzielonych świadczeń. Zanotowano wzrost liczby pacjentów leczących się z powodu zaburzeń nastroju, zaburzeń nerwicowych, związanych ze stresem i pod postacią somatyczną, także uzależnień.

Wyniki

Wzrost łącznej liczby wykazanych świadczeń dotyczył głównie otwartych form leczenia: oddziałów dziennych, zespołów leczenia środowiskowego oraz ambulatoryjnej opieki psychiatrycznej. Nie można stwierdzić przyczyny ponownego wzrostu w 2014r. liczby hospitalizacji psychiatrycznych, jak również wzrostu wskaźnika liczby hospitalizacji na 100 tys. dorosłych.

Wnioski

Uzyskane wyniki wskazują na potrzebę dalszego wspierania rozwoju opieki psychiatrycznej,
z zastosowaniem wielokierunkowości oddziaływań w zintegrowanym modelu rozwiązywania problemów zdrowotnych. Do całościowej analizy świadczeń realizowanych w opiece psychiatrycznej konieczny jest dostęp do informacji na temat świadczeń finansowanych
ze środków niepublicznych oraz poszerzenie sprawozdawanych informacji.
RETRACTED: High sensitivity magnetometer using nanocomposite polymers with large magneto-optic response
Authors: Amirsolaimani Babak , Gangopadhyay Palash , Persoons Andre P. , Showghi Sasaan A. , LaComb Lloyd J. , Norwood Robert A. , Peyghambarian Nasser
Published: September 2018

Miniaturized magnetic field sensors are increasingly used in various
applications, such as geophysical exploration for minerals and oil,
volcanology, earthquake studies, and biomedical imaging. Existing
magnetometers lack either the spatial or the temporal resolution or
are restricted to costly shielded labs and cannot operate in an
unshielded environment. Increasing spatio-temporal resolution would
allow for real-time measurements of magnetic fluctuations with high
resolution. Here we report on a new nanocomposite-based system for
miniaturized magnetic field sensing. The sensor is based on
Dy3+ -doped magnetite and cobalt ferrite
nanoparticles dispersed in a polymer matrix. Operation is feasible at
room temperature and in an unshielded environment. A compact
fiber-optic interferometer is used as the detection mechanism with
20  fT/√Hz sensitivity. We investigated the
magnetic field response of the sensor and demonstrated the measurement
of the human heartbeat as a potential application.
Correspondencias formales y visuales entre el Tangram y la obra pictórica del neoplasticista Bart van der Leck
Authors: Sarriugarte Gómez Iñigo
Published: September 2018

Si el reto creativo ante un Tangram es reconstruir distintas figuras en base a un número de piezas invariables y geométricas, esta misma actitud será la que deba asumir el espectador ante la obra del neoplasticista holandés Bart van der Leck, al aplicar una metodología reduccionista y planimétrica, especialmente al geometrizar los temas figurativos y simplificarlos a elementos sueltos en brillantes colores sobre fondo blanco. Esta aportación metodológica conllevará influencias en los trabajos de los demás miembros del grupoDe Stijl, particularmente en la obra de Piet Mondrian.
Redes artísticas y culturales alternativas en la ciudad global
Authors: Sánchez Duro Oihane
Published: September 2018

En el momento en el que la economía de la acumulación entra en crisis, ésta viene a ser reemplazada por un modelo económico basado en lo inmaterial en el que la cultura se convertirá en el producto principal de los modos de producción propios del capitalismo tardío. La cultura, además de suponer la fuerza expedicionaria para la gentrificación de la ciudad central (Ley 1996, 191) de las estrategias de regeneración económica y transformación urbana, es un elemento de consumo indispensable en la industria del ocio y el entretenimiento, a menudo sometiéndose a su propia espectacularización. En este sentido surge el proyecto de investigación Bilbao Dé-Tour-Nement. Catálogo de Espacios y Prácticas Artístico-Culturales, cuyo objetivo es visibilizar los espacios y la actividad artístico-cultural implícita en la citada ciudad además del circuito principalmente conocido. Del mismo modo, repara en la red de agentes culturales que trabaja en relación a la misma y cuya labor surge de forma cohesionada y comprometida con la cotidianeidad del espacio urbano en el que se sitúan y que habitualmente desarrollan su actividad profesional en condiciones de precariedad.
Por un tiempo otro: Experiencia estética y aceleración contemporánea
Authors: Del Castillo Sánchez Óscar
Published: September 2018

La acelerada temporalidad contemporánea está en el origen de graves desarreglos psicológicos. Se trata de un fenómeno inherente al sistema productivo, y derivado de una interacción, de intensidad creciente, entre determinados componentes del sistema. Si la obra de arte, como se ha afirmado con frecuencia, posee alguna aptitud para suscitar cambios en las disposiciones vitales de los individuos, su faceta temporal puede ofrecer un remedio eficaz contra los aspectos psicológicos de esta situación. De entre las artes, la arquitectura y el medio construido tienen la oportunidad de ofrecer en la vida cotidiana una experiencia temporal mitigadora de esta aceleración contemporánea. Uno de los caminos por los que la temporalidad de la experiencia estética puede incidir en nuestro devenir personal radica en el modo en que, al explicitarnos nuestra vivencia de la obra y convertirla en narrativa, esa experiencia temporal se enlaza a un cuidado de sí integrado por narrativas diversas.
Deseo de decir
Authors: Rozas Elizalde Ixiar
Published: September 2018

Una de las maneras de contar hoy pasa por rematerializar el lenguaje, por poner en primer plano la materialidad, el ritmo y la sonoridad de las palabras. Cuando lo que más explota el capitalismo postfordista es nuestra capacidad comunicativa y lingüística, y en medio de la textualización virtual de la vida, qué decir, entonces, cómo decir, con qué palabras y qué cuerpos. Trabajar desde la práctica artística con el universo de lo lingüístico, no significa necesariamente generar narratividad. Escribir sobre las maneras de contar hoy, no significa discursivizar. Es lo que sucede en algunas piezas artísticas que traspasan lo textual (la vista) para desplazarse a lo sonoro (la escucha) y a una oralidad que pone el cuerpo a la escucha.
Las diferentes miradas a la noción de cultura y los efectos de la globalización cultural
Authors: Martínez Samper Carmen
Published: September 2018

El concepto “cultura” ha evolucionado a lo largo de varios siglos, así como su relación con la sociedad. Desde sus orígenes, en los primeros análisis desarrollados por las ciencias sociales (s.XIX), se hizo necesaria una reflexión e interpretación precisa del uso de este concepto dentro de los distintos ámbitos que generan conocimiento. Nuevos códigos, culturas alternativas, nuevos límites y aperturas enriquecen el panorama artístico pero, a su vez, estos modos de “ver” conllevan cierta complejidad. El cómo se cuentan las cosas está lleno de matices, de formas diferentes de narrar y generar pensamiento, cultura contemporánea participativa. La cultura no sólo se puede explicar desde parámetros distantes; también en la proximidad. Lo social es próximo y su relación con lo que acontece resulta necesario dentro de un espacio social diferenciado: las artes.
El proyecto artístico como relato en el arte contemporáneo: Casos, discusión y conclusiones
Authors: Martín Martínez José Vicente
Published: September 2018

El artículo analiza el papel del relato en el arte contemporáneo, entendido como horizonte de sentido, y cómo se ha convertido en la base de las prácticas basadas en el proyecto. A través tanto de la comparación con conceptos propios de la teoría literaria como historia, discurso e hipertexto como del estudio de diversos casos a modo de ejemplos, se pretende analizar la naturaleza y características de este modelo de producción y recepción artística.
Zirkoniozko material porotsu berriak: egitura sendoen bila
Authors: Fidalgo Mayo Luz , Beitia Javier I.
Published: September 2018

MOFak (ingelesez metal-organic frameworks) ordena handiko material hibrido porotsuak dira, ioi metalikoz eta estekatzaile organikoz osatutako koordinazio-konposatuen sare hedatuak. Azken urteotan, material porotsuek teknologiaren arloan izan duten interes handiak sustatuta MOF konposatuen aurrerakuntza handia izan da. Hala gertatzeko arrazoien artean berezko ezaugarri eta propietate interesgarriak daude, baita aplikazio ugari eta askotarikoak ere. Aurrerakuntza horrekin lotuta MOFen arazoak ere ageri dira, haien artean ezegonkortasun kimikoa eta termikoa. Hori dela eta, zientzialariok sendoagoak diren MOFen bila ari gara, eta, ildo horri dagokionez, Zr-MOFak adierazgarriak dira beren ohiz kanpoko portaeragatik. Zalantzarik gabe, etorkizun handiko materialak dira.
Koloratzaile organikoz dopaturiko L-zeolita antena material luminiszente gisa
Authors: Gartzia-Rivero Leire , Martínez David , Bañuelos Jorge
Published: September 2018

Zientzialariek askotan naturan bertan aurkitzen dute inspirazioa aurrerakuntza zientifikoak sustatzeko. Honen adibide nabaria da fotosintesian jarritako arreta berezia, eguzki-argia eraginkortasunez xurgatu eta energia kimikoan eraldatzeko gai den prozesu konplexua. Lan honen helburua fotosintesian gertatzen den oinarrizko prozesuetako bat imitatzea da, halaber, argiaren bilketaz arduratzen dena. Horretarako, eremu espektral zabalean argia xurgatzeko gai diren material fotoaktiboak garatu dira, zeinak argi gorria igortzeko berezitasuna izango baitute. Material lumineszente hauek garatzeko, koloratzaile organiko aproposak aukeratu dira L-zeolitaren nano-kanal unidimentsionaletan barneratzeko. Konfinamendu hau ezinbestekoa da energia trukea bultzatzeko, funtsezko prozesua energiaren garraioa eta eraldaketa ahalbidetzeko. Garatutako nanomaterialak aproposak dira argia tarte espektral zabalean eraginkortasunez biltzeko (antena jarrera) eta, ondoz ondoko energia trukeari esker, bereziki argi gorria igortzeko, hainbat arlo (bio)teknologikotan aplikagarria.
Ikasketaren eta oroimenaren oinarri estruktural eta molekularrak
Authors: Murueta-Goyena Ane , Bengoetxea Harkaitz , Lafuente José Vicente , Ortuzar Naiara
Published: September 2018

Azpimarratzekoa da garunak egunerokotasunean bizi izandako esperientziak gordetzeko eta, portaera gidatzeko, informazio hori gogorarazteko duen gaitasuna. Garuneko neurona-zirkuitu espezifikoek funtzio jakinetan parte hartzen dute, eta bekoki aurreko kortexa eta hipokanpoa bereziki garrantzitsuak dira ikasketa eta oroimen prozesuetan. Are gehiago, N-metil-D-aspartato (NMDA) hartzailea prozesu hauen substratu molekular gisa identifikatu da. Izan ere, NMDA hartzaileen azpiunitateen konposizioa eta neurogarapeneko erregulazioa plastikotasun sinaptikoarekin zuzenki erlazionatuta daude. Halaber, faktore neurotrofikoak ezinbestekoak dira plastikotasun sinaptikoan aldaketak eragiteko eta, ondorioz, kognizioaren hobekuntza bat lortzeko. Artikulu honetan, bekoki aurreko kortexaren eta hipokanpoaren anatomia, funtzioa eta eremu bien arteko elkarrekintzaren berrikuspena egiteaz gain, ikasketa eta oroimen prozesuetan duten parte-hartzea deskribatzen da. Azkenik, itu molekularren modulazioak duen efektua ere aztertzen da, NMDA hartzaileei eta faktore neurotrofikoei arreta berezia jarriz.
Ikasketa automatikoko tekniken erabilgarritasun azterketa euskararako postediziorako gomendio-sistema eraikitzeko
Authors: Aranberri Nora , Pascual Jose A.
Published: September 2018

Gaztelania-euskara bikotearekin lan egiten duten itzultzaileentzat eskuragarri dagoen itzulpen automatikoaren kalitatea nahiko baxua da, eremu profesionalean erabiltzea oztopatzen duena. Lan honek posteditatzea edo itzultzea, bietatik eragingarriagoa zein den erabakitzen laguntzeko gomendio-sistema bat eraikitzearen egingarritasuna ikertzen du, datu-multzo mugatu batekin ikasketa-algoritmoen jokaera aztertuz. Lehenengo, postedizio-esfortzua aurreikusten duten erregresio-ereduak eraiki ditugu kalitate orokorrean, denboran eta edizioetan oinarritzen direnak. Bigarrenik, edizio-metodo eraginkorrena gomendatzen duten sailkapen-ereduak eraiki ditugu oinarrizko ezaugarriei eta ezaugarri linguistikoei postedizio-esfortzuko ezaugarriak gehituta. Emaitzek korrelazio altuak erakusten dituzte erregresio-ereduek aurreikusitako HTERen, denboraren eta edizio kopuruaren eta errealen artean. Era berean, sailkatzaileen emaitzek erakusten dute doitasun altuz iragarri dezakegula itzultzea edo posteditatzea, bietatik zein den eraginkorragoa.
Egituraturiko argiaren aplikazioak fabrikazio hibridoaren bidez pieza metalikoak ekoizteko
Authors: Alberdi Amaia , Alberdi Nerea , Pacheco Rakel , Ortiz Mikel , Ramiro Pedro
Published: September 2018

Fabrikazio gehigarria eta mekanizatua makina berean elkartzen dituzten makina hibridoen kontzeptu berriaren garapenarekin, piezen konponketa eta propietate bereziak dituzten estalduren fabrikazioa bezalako aplikazioak automatizatzeko aukerak sortzen ari dira. Aplikazio hauetan, agerian geratu da neurketa sistemen beharra piezen geometria ezagutzeko. Neurketa sistema ezberdinen artean, egituraturiko argiak abantaila ugari aurkezten ditu prozesu honetan aplikatzeko: tamaina ezberdinetako piezak neurtzeko gai da, pieza osoa neurketa bakar batean egin dezake, testura gutxi duten edota testurarik ez duten objektuak neurtzeko gai da, eta gainera, argiztapen baldintzen aldaketek ez diote apenas eragiten. Artikulu honetan, egituraturiko argiaren aplikazio ezberdinak azaltzen dira, fabrikazio hibridorako. Honez gain, teknologia honen aplikazioaren adibide bat ere deskribatzen da, berotako estanpazioan erabiltzen den tako baten estalduraren fabrikazioan datzana, hain zuzen ere. Horretarako, Ibarmia fabrikatzailearen ZVH 45/1600 Add+Process makina hibridoa erabili da.
CIDADE, INFÂNCIA E ESCOLARIZAÇÃO: UM ENSAIO ANALÍTICO
Authors: Dias da Silva Rodrigo Manoel , Castro e Silva Denise Madeira
Published: September 2018

O presente artigo visa discutir a constituição das cidades nos projetos da modernidade e, mediante revisão de aportes dos campos da História e da Sociologia da Educação, problematizar sua pretensa competência educadora aludida em programas contemporâneos de indução de educação em tempo integral. Por meio de uma revisão teórica, buscou-se articular os conceitos de infância, escolarização, cidade e cidadania com vistas à delimitação das relações das crianças com os espaços urbanos, predominantemente supervisionadas pelos adultos.
FORMAÇÃO E CONDIÇÕES DE TRABALHO DO PROFESSOR DO ENSINO MÉDIO NO BRASIL
Authors: Costa Gilvan Luiz Machado , Bollmann Maria da Graça Nóbrega
Published: September 2018

O artigo tem como objetivo compreender os limites e as perspectivas à formação inicial e às condições de trabalho dos professores do Ensino Médio no Brasil. Apresenta a discussão com base em indicadores educacionais arrolados à valorização do professor do Ensino Médio, com destaque para a Adequação da Formação Docente e Esforço Docente. Os dados expressam os limites em relação às proposições das metas 15 a 18 do Plano Nacional de Educação (2014-2024) e evidenciam desafios relacionados à elevação da formação acadêmica e melhoria das condições de trabalho do professor do Ensino Médio. Aponta a necessidade de elevar de, aproximadamente, 58% para 100% o percentual de professores do Ensino Médio das escolas estaduais com formação adequada. Indica que cerca de 25% dos professores têm mais de 300 alunos, que atuam nos três turnos, em duas ou três escolas e em duas ou mais etapas. Sugere que o problema da qualidade do Ensino Médio, colocado com muita intensidade no centro das discussões com a sanção da Lei 13.415/2017, não se resolverá com a flexibilização curricular proposta. A resolução demanda, além de mudanças curriculares, formação inicial e continuada dos professores, remuneração, carreira e condições de trabalho condizentes com o exercício da profissão, nos termos de uma escola de qualidade para todas e todos.
Pattern of Micro Enterprises Accounting Records and The Barriers
Authors: Wulanditya Putri
Published: September 2018

This study focuses on the micro-scale enterprises. The motivation of this study is to assist the parties in direct contact in order to know how the pattern of accounting records that had been done by the practitioners of SMEs is and what barriers they had experienced related to the production of financial statements simple. This study included in the exploratory study, collected data through interview, observation and documentation. The results of the study at 38 micro business unit showed 58% had evidence of financial transactions, but only 28% who take records of these transactions either into the cash book and the sales book. Some of the obstacles faced by entrepreneurs include difficulty separating personal wealth and their business interests, evidence of transactions forget to be stored, for trade and manufacturing businesses having problems calculating inventory and cost of sales.
Perspectives of Accounting Theory
Authors: Purba Rahima Br. , . Nurlinda , Tambunan Saribulan
Published: September 2018

The importance of strange accounting theory positions is Â used to explain accounting facts accurately and must have logical consistency. Theorists widely use accounting theory in an attempt to explain current phenomena by using robust accounting theories. Accounting theory relies heavily on the agreement on the notion of accounting as a discipline of knowledge. Accounting will be viewed as a science and as a technology. On the basis of the goals to be achieved, accounting theory can be divided into positive and normative theory. By the target of semiotics in communication theory, accounting theory is divided into false, semantic, and pragmatic methods. Accounting theory also derives explanation or justification through deductive and inductive reasoning. Various aspects of accounting theory must be verified or validly tested by logical argument, empirical evidence, predictive power, and agreed value standards.
The Role of Information in Strategic Planning and Decision Making: Overview on Economic Organizations in Oman
Authors: AlHijji Khalfan Zahran , AlHarrasi Nabhan Harith , Alissaee Huda Salem
Published: September 2018

This study aims to investigate the issue of the role of information in strategic planning and decision making in Omani economic organizations. It also attempts to understand the process and the importance of information in decision making. A qualitative method was applied to achieve the study objectives. Thirty participants from eleven organizations were selected for in-depth interviews. Nineteen of the participants are general directors, seven are directors, while the rest are advisors at their organizations. All interviews were analyzed by using thematic analysis. The results show that Omani government economic organizations usually take two types of decisions: technical routine decisions that are regularly made by managers and other decision makers and strategic decisions directed toward achieving the future aspirations of the organization. The type of decision is affected by the level of management and time of making the decision. Participants form different economic organizations are agreed that there should be a clear strategy for making and evaluating decisions, starting from gathering and analyzing relevant data and following through to implementation of the final decision.
Vloga staršev in vzgoje za zdravje pri oblikovanju odgovornega spolnega vedenja
Authors: Pivač Sanela , Kalender Smajlović Sedina
Published: September 2018

Uvod: Spolno vedenje je pogosto povezano z določenim zdravstvenim tveganjem, kar vključuje nizko spolno ozaveščenost, značilno za spolno vedenje mladih brez izkušenj. Namen raziskave je bil ugotoviti odnos učencev do spolnega vedenja ter vlogo staršev in spolne vzgoje pri zavedanju učencev o posledicah tveganega spolnega vedenja.Metode: Izvedena je bila kvantitativna neeksperimentalna metoda raziskovanja, s pomočjo strukturiranega vprašalnika na vzorcu 144 učencev ene izmed osnovnih šol na Gorenjskem, septembra 2013. Za analizo podatkov so bili uporabljeni opisna statistika, Mann Whitneyjev U-test, Kruskall – Wallisov test ter linearna večkratna regresijska analiza.Rezultati: Trditev »Kadar imam težave, mi družina nudi oporo« ima statistično značilen vpliv na pozitivno oblikovanje mnenj o spolnem vedenju (β = 0,259, p = 0,002). Ugotovili smo statistično pomemben vpliv zavedanja anketirancev o posledicah tveganega spolnega vedenja in proučevanih spremenljivk, kot sta »Spolna vzgoja pomaga pri razumevanju telesnih in čustvenih sprememb, ki jih prinaša puberteta (β = 0,089,p < 0,001)« in »Pri prvem spolnem odnosu moram paziti, da sem zaščiten/-a« (β = 0,066, p = 0,001).Diskusija in zaključek: Anketirani učenci so dovzetni za ustvarjanje boljšega spolnega vedenja takrat, ko jim podporo - pogosto kot prvi vir - nudi družina. Spolna vzgoja predstavlja preventivo pred tveganim spolnim vedenjem. Gre za proces, v katerem posameznik pridobi informacije in oblikuje stališče / prepričanja o spolnosti, spolni identiteti, odnosih in intimnosti.
SURGICAL TREATMENT OF ELDERLY AND SENILE PATIENTS WITH DEGENERATIVE CENTRAL LUMBAR SPINAL STENOSIS
Authors: Khalepa R. V. , Klimov V. S. , Rzaev J. A. , Vasilenko I. I. , Konev E. V. , Amelina E. V.
Published: September 2018

Objective. To analyze the results of surgical treatment of patients of the older age group with central spinal stenosis at the lumbar level. Material and Methods. A total of 107 patients of elderly and senile age with clinically significant degenerative central stenosis of the spinal canal were treated. They were divided into two groups: patients in Group 1 underwent bilateral decompression of nerve roots through unilateral approach; those in Group 2 - nerve root decompression supplemented with interbody fusion and transpedicular fixation. Results. The surgery resulted in statistically significant reduction in pain, improvement of the quality of life, enlargement of spinal canal dimension parameters, and increase in the distance of walking. Statistical difference in the quality of life between Groups 1 and 2 was revealed for the indicator characterizing the psychological component of the SF-36 questionnaire (p = 0.03); there were no statistical differences for the remaining indicators. The key parameter for assessing central stenosis is the cross-sectional area of the dural sac. Conclusion. Preoperative examination of patients of the older age group should be comprehensive and include CT myelography with 3D reconstruction. The cause of nerve root compression in central stenosis is a combination of various factors in 41.9 % of cases. Differential surgical tactics provides an improvement in the quality of life in 80 % of cases. Excessive decompression does not improve the quality of life of patients. Instrumental fixation does not improve the outcome of surgical intervention and should be used only for clinically significant instability of the spinal motion segment.
SPINAL TUMORS: A CONCEPT OF INTEGRATED ASSESSMENT IN RELATION TO EMERGENCY CONDITIONS
Authors: Mushkin M. A. , Dulaev A. K. , Mushkin A. Yu.
Published: September 2018

A modern concept of assessing tumor lesions of the spine, NOMS, adapted to the conditions of emergency care is presented as a part of a systematic review of the literature. Principles of neurological, oncological, mechanical and system analysis of spine lesions in primary and metastatic spinal tumors, which are the basis for step-by-step tactical decisions, as well as methods for analyzing each component are described.
Sellouts, Beliefs, and Bandwagon Behavior
Authors: Vikander Nick
Published: September 2018

This paper examines how a firm can strategically use sellouts to influence consumers’ beliefs about its product’s popularity. A monopolist faces a market of conformist consumers, whose willingness to pay is increasing in their beliefs about aggregate demand. Consumers are broadly rational but have limited strategic reasoning about the firm’s incentives. Formally, I apply the concept of a ‘cursed equilibrium’, where consumers neglect how the firm’s chosen actions might be correlated with its private information about demand. I show that in a dynamic setting, the firm may choose its price and capacity so as to generate sellouts, specifically to exploit consumers’ limited reasoning. It does so to effectively conceal unfavorable information from consumers about past demand in a way that increases future profits. Sellouts tend to occur when demand is low, rather than high, and may be accompanied by introductory pricing. The analysis also demonstrates that the firm’s ability to mislead some consumers always benefits certain others, and can result in higher overall consumer surplus.
Optimization of a Treatment System of Wastewater Streams for Electrochemical Cr(VI) Reduction: Selective versus Centralized Treatment
Authors: López-Yañez Adrián , Ramirez-Muñoz Jorge , Alonso Alejandro , Cota Luis G. , Montiel Jhonny Pérez
Published: September 2018

The problem of the optimization of selective treatment systems of wastewater streams contaminated with hexavalent chromium [Cr(VI)] is investigated. In order to comply with the Mexican environmental norm of Cr(VI) for treated wastewater streams at minimum cost, a nonlinear programming (NLP) model for the electrochemical reduction of hexavalent chromium to trivalent chromium was developed. The model incorporates a variable reaction rate, which is a function of the Cr(VI) concentration and the electrical current density of the electrochemical process. For this purpose, a basic superstructure of the effluent treatment is proposed. The superstructure is composed of three continuous electrochemical reactors without recirculation, and it may produce either a series and/or parallel design topology. The NLP model was used to minimize the objective function, defined as the total annual cost (TAC), which includes the capital cost of each electrochemical reactor, the electrical energy cost and the cost of the treatment of the wastewater streams. In order to investigate the solution set of the proposed NLP model, i. e., to improve the possibilities of obtaining optimum solutions based on economic criteria, a multi-start algorithm was implemented. Two example problems are used to show the versatility of the model and different local optimal solutions were obtained for each case study. The results show that a selective treatment of wastewater streams based on the search of local optimal solutions yields significant savings with respect to a centralized treatment design.
Cognitively Motivated Query Abstraction Model Based on Associative Root-Pattern Networks
Authors: Haddad Bassam
Published: September 2018

This paper attempts to investigate some aspects related to problems involved in textual inter-cognitive communication in the context of search queries. Furthermore, it aims at stressing on the root-pattern and morpho-phonetic dimension of a word meaning within a query, and its effects on understanding and predicting the intended information conveyed by some search patterns in a human language. As humans are inclined to use very few words possibly pervaded with vague and uncertain interpretational potential for requesting information, misinterpreting conveyed information in a query term might critically influence an inter-cognitive communication, particularly in case of Arabic- and Semitic-based computer systems. Furthermore, as phonetic patterns are involved in the mental word perception, an abstract morpho-phonetic query model is proposed based on the non-linearity of the morpho-phonetic characteristic of Arabic word cognition. This model suggests forming the intended query information by constructing morpho-phonetic query patterns relying on the most associative root-pattern subnetworks. An important advantage of this model resides in introducing the concept of query abstract morpho-phonetic vectors expressing query vector space. Furthermore, this approach suggests employing the fuzzy subsethood theorem as an assessment reflecting model accuracy and the closeness to human associative word-networks. Finally, it opens the discussion to consider indexing based on a higher level of abstraction, such as utilising patterns as cognitive search variables. Furthermore, as this model is capable of predicting most human associative query key terms, integrating these within certain human-machine interaction would improve inter-cognitive communications.
Die Janusköpfigkeit des ahd. Konnektorswantaund ihre Relevanz für die korpusbasierte historische Syntaxforschung
Authors: Catasso Nicholas
Published: September 2018

The Old High German clause connectorwanta(‘because’) has been variously categorized in the literature, as well as in the largest existing corpus of annotated Old High German texts (theReferenzkorpus Altdeutsch), with respect to its selectional properties: when it introduces a causal clause, it is generally classified as a conjunction with variable (coordinating or subordinating) formal features or, in a smaller number of cases, as an adverb. This heterogeneous taxonomy, however, does not seem to besystematicallyjustified by any evident semantic or syntactic correlate. In this paper, it is shown – on the basis of data from the main prose texts of this period – thatwantaexhibits the same interpretive flexibility as embedding Present-Day Germanweil(viz. a propositional and a speech-act related reading) and that at least its function as a subordinating conjunction can, in most cases, be disambiguated by means of diagnostic tests (e. g., the predicates it introduces can resume cataphoric main-clause pronouns and appear in topicalized positions). The aim of the present contribution is therefore twofold: in the first place, to descriptively address the strategies for the expression of causation in Old High German; in the second place, to provide a precise syntactic categorization for Old High Germanwantaas a complementizer that may be of help to historical syntacticians who analyze clause phenomena in the above mentioned sources; finally, to address the methodological problem related to the categorization of non-disambiguable occurrences ofwanta.