bluuebunny/crossref_metadata_2025_split huggingface dataset:
Η καθοριστική σημασία της ορθής διαχείρισης του χρόνου στην άσκηση αποτελεσματικής διοίκησης στον εκπαιδευτικό οργανισμό
Authors: Τσούνη Βασιλική , Καρακατσάνη Ελένη 
Published: October 2016

<p>Ο χρόνος είναι αδιαμφισβήτητα μια από τις πιο σημαντικές παραμέτρους άσκησης της διοίκησης για την σχολική μονάδα και η σημασία του καταδεικνύεται και από την πληθώρα ερευνών γύρω από την χρήση του. Σκοπός της παρούσας εργασίας είναι αρχικά να καταδείξει για ποιους λόγους η ορθή αξιοποίηση του χρόνου είναι σημαντική για την σχολική μονάδα και στη συνέχεια να παρουσιάσει το συσχετισμό αυτής της ορθής αξιοποίησης με την αποτελεσματική άσκηση της διοίκησης παρουσιάζοντας ταυτόχρονα πως ο χρόνος εμπλέκεται με τις λειτουργίες της διοίκησης. Στη συνέχεια θα γίνει προσπάθεια να καταγραφούν οι παράγοντες εκείνοι που επηρεάζουν θετικά ή αρνητικά την οργάνωση του χρόνου του διευθυντή μιας σχολικής μονάδας. Τέλος επειδή το επιβαρυμένο πρόγραμμα και το εργασιακό άγχος το οποίο συχνά παίρνει τη μορφή εργασιακής εξουθένωσης είναι πραγματικότητα στο ελληνικό εκπαιδευτικό σύστημα και κατ επέκταση στο σύγχρονο απαιτητικό σχολείο θα κατατεθούν προτάσεις οι οποίες , αν υλοποιηθούν, μπορούν να συνεισφέρουν στην ορθή διαχείριση του χρόνου και κατά συνέπεια στην βελτίωση της αποτελεσματικότητας της σχολικής μονάδας.</p><p> </p>
Η επίδραση της ανατροφοδότησης στην ευφυή γνωστική συμπεριφορά
Authors: Φουστάνα Αγγελική 
Published: October 2016

<p>Η ανατροφοδότηση αφορά στην πληροφόρηση του μαθητή για τα αποτελέσματα των μαθησιακών ενεργειών και προσπαθειών του. Αναφέρεται στα μηνύματα που παίρνουν οι μαθητές για την επίδοση και την πορεία της σκέψης τους. Ως πληροφόρηση που κατευθύνει την πρόοδο ενός ατόμου προς ένα συγκεκριμένο επίπεδο απόδοσης ή ως ένα μήνυμα που περιγράφει την ύπαρξη συγκεκριμένων συμπεριφορών ή δράσεων, η ανατροφοδότηση βοηθά τα παιδιά να καθορίσουν την κατάλληλη κατανομή των σχετικών με το έργο μέσων (προσπάθεια, χρόνος) ή την επιλογή της στρατηγικής που θα οδηγήσει στην επιτυχή επίδοση. Πηγές ανατροφοδότησης μπορεί να είναι τα εποπτικά μέσα, οι απαντήσεις των ειδικών ή των δασκάλων σε ένα θέμα, οι συμμαθητές ή οι κρίσεις των ίδιων των μαθητών. Σκοπός της παρούσας μελέτης είναι η εξέταση της στρατηγικής διδασκαλίας και της ανατροφοδότησης σε μαθητές διαφορετικού νοητικού δυναμικού. Πιο συγκεκριμένα, μελετώνται οι διαφορές ευφυών και μη ευφυών μαθητών ως προς την επίδραση της ανατροφοδότησης σε πολύπλοκα γνωστικά έργα. Τα ευρήματα της μελέτης δείχνουν ότι υπάρχουν σημαντικές διαφορές στις ομάδες ευφυών και μη ευφυών μαθητών ως προς τη συμβολή της ανατροφοδότησης. Ποιοτικές διαφορές καταγράφονται ως προς τη στρατηγική διδασκαλία και την επίδοση σε σύνθετα γνωστικά έργα ανάλογα με το νοητικό δυναμικό των μαθητών. </p>
Outcomes after Implementation of an Alcohol Withdrawal Protocol at a Single Institution
Authors: Eberly Mary E. , Lockwood Anna G. , Lockwood Sean , Davis Kelly W. 
Published: October 2016

Background There are varying dosing strategies for the administration of benzodiazepines in the setting of alcohol withdrawal. In October 2014, a symptom-based alcohol withdrawal protocol (AWP) using the Clinical Institute Withdrawal Assessment of Alcohol, Revised (CIWA-Ar) scale was implemented at one institution. Objective To evaluate the safety and efficacy of the AWP. Methods Retrospective chart review was completed, including patients receiving at least one dose of diazepam for alcohol withdrawal pre- and post-protocol. The primary outcome of this study was the average daily and cumulative dose of diazepam during hospital stay. Secondary outcomes included length of stay and occurrence of seizures or delirium tremens. Results The average daily dose and the average cumulative dose of diazepam were significantly lower in the post-protocol group (5.4 vs 12.1 mg, p < .001; 35.0 vs 77.6 mg, p < .001, respectively). Length of stay was similar between groups (6.5 vs 6.4 days, p = .91), however, duration of benzodiazepine use was decreased in the post-protocol group (2.2 vs 4.7 days, p < .001). Despite using reduced doses of benzodiazepines, there was no increase in adverse events. Conclusions The implementation of a symptom-based AWP using the CIWA-Ar scale was associated with a reduced average daily and cumulative dose of diazepam without any apparent safety issues.
Potency and Sterility of 10% Sodium Fluorescein Injection, USP Stored in Sterile Polypropylene Syringes for Use during Cystoscopy
Authors: Puertos Enrique , Giles Greta 
Published: October 2016

Background A shortage of indigotindisulfonate sodium has led to a search for an alternative visualizing agent. Objective The primary objective of this study was to evaluate the potency and sterility of 10% sodium fluorescein, USP solutions stored in sterile polypropylene syringes and refrigerated. Methods Four samples of 10% fluorescein injection, USP were aseptically drawn up in 3 mL polypropylene syringes and stored in a refrigerator at an average temperature of 3.9°C for 7 days. After 7 days, the samples were cultured for microbial growth. Four other samples were assayed by UV/VIS spectroscopy. Concentration measurements were made at day 0 and at day 7. The pH was also measured at day 0 and day 7. Results There was no statistical difference between the mean sodium fluorescein concentration at day 0 and at day 7 (α = 0.05, p = .622). There was no statistical difference in the pH of the samples at day 0 and at day 7 (α = 0.05, p = .0689). There was no evidence of microbial growth in any of the samples for the duration of the study period. Conclusions The findings of this study demonstrate that a sterile solution of 10% sodium fluorescein, USP retained its potency and showed no signs of microbial growth for a period of 7 days when refrigerated and stored in sterile polypropylene syringes.
'This is Not a Pipe'?: Reflexivity, fictionality and dialogism in Sembène's films
Authors: Repinecz Jonathon 
Published: October 2016

Abstract
The work of Senegalese film-maker Ousmane Sembène is often analysed in terms of its highly ideological and social realist mode. This paper questions the relevance of a one-way ‘film as message’ model by demonstrating how Sembène’s films thematize the limits of meaning. His work systematically emphasizes the dialogical construction of meaning, whether of important symbols like the mask in La Noire de .../Black Girl, or of the films themselves as objects circulating in society. Self-reflexive strategies like posters and cameos by Sembène call the viewer’s attention to the constructedness of the ideological message and the arbitrariness of the film as sign. Sembène’s films are still a call to action, but they are also a call to thought about the factitiousness of narrative, and to dialogue about the work of interpretation.
Orality, documentary, intertextual performance and discursive practices: A reading of Ye Wonz Maibel (Deluge) 1997 by Salem Mekuria
Authors: Oyinsan Bunmi 
Published: October 2016

Abstract
This article offers a reading of Salem Mekuria’s Ye Wonz Maibel (Deluge), a documentary on the Red Terror in Ethiopia under Mengistu Haile Mariam. Mekuria’s film critiques notions of objective and scientific truth on which patriarchal nation states and revolutionary rhetoric often depend. Mekuria does this by using a genre most associated with objectivity and truth – the documentary. Mekuria uses the film as an avenue to get herself and her subjects to actively perform their thinking through of the traumatic events. The process of active introspection allows Mekuria and her subjects to question official accounts of the events. In presenting her subjects’ voices Mekuria challenges the binary victim/oppressor using the notion of the African palaver, and other oral traditions such as sem-enna warq (wax and gold), a major influence in Ethiopian creative expressions. She offers Deluge as a model for participatory intervention and as a discursive and mediational performance.
Book Reviews
Authors: Okocha Mary , Ureke Oswelled 
Published: October 2016

Abstract
GLOBAL NOLLYWOOD: THE TRANSNATIONAL DIMENSIONS OF AN AFRICAN VIDEO FILM INDUSTRY, MATTHIAS KRINGS AND ONOOKOME OKOME (EDS) (2013) Indiana University Press, USA 371 pp., p/bk, ISBN: 9780253009357. Paperback $30, Hardcover $80
The Importance of Prescribing Exercise Programs in Gyms
Authors: Maciel João Paulo Da Silva , Souza Thiago Cabral de , Dias Raphael Rodrigues , Silva Elizabeth Alves 
Published: October 2016

This study evaluated the key indicators for prescribing exercise programs in gyms in the city of Barbalha - CE. It was a descriptive field study with 150 subjects, half men and half women. The results showed morphological changes in the main body segments. As for the purpose of the physical exercises, the main motivation was aesthetics. Few subjects reported doing the practice seeking a muscle reorganization. Keywords: Prescription for exercise. Postural changes. Fitness Centers.
Muscle oxygenation during dynamic plantar flexion exercise: combining BOLD MRI with traditional physiological measurements
Authors: Muller Matthew D. , Li Zhijun , Sica Christopher T. , Luck J. Carter , Gao Zhaohui , Blaha Cheryl A. , Cauffman Aimee E. , Ross Amanda J. , Winkler Nathan J.R. , Herr Michael D. , Brandt Kristen , Wang Jianli , Gallagher David C. , Karunanayaka Prasanna , Vesek Jeffrey , Leuenberger Urs A. , Yang Qing X. , Sinoway Lawrence I. 
Published: October 2016

AbstractBlood‐oxygen‐level‐dependent magnetic resonance imaging (BOLD MRI) has the potential to quantify skeletal muscle oxygenation with high temporal and high spatial resolution. The purpose of this study was to characterize skeletal muscle BOLD responses during steady‐state plantar flexion exercise (i.e., during the brief rest periods between muscle contraction). We used three different imaging modalities (ultrasound of the popliteal artery, BOLD MRI, and near‐infrared spectroscopy [NIRS]) and two different exercise intensities (2 and 6 kg). Six healthy men underwent three separate protocols of dynamic plantar flexion exercise on separate days and acute physiological responses were measured. Ultrasound studies showed the percent change in popliteal velocity from baseline to the end of exercise was 151 ± 24% during 2 kg and 589 ± 145% during 6 kg. MRI studies showed an abrupt decrease in BOLD signal intensity at the onset of 2 kg exercise, indicating deoxygenation. The BOLD signal was further reduced during 6 kg exercise (compared to 2 kg) at 1 min (−4.3 ± 0.7 vs. −1.2 ± 0.4%, P < 0.001). Similarly, the change in the NIRS muscle oxygen saturation in the medial gastrocnemius was −11 ± 4% at 2 kg and −38 ± 11% with 6 kg (P = 0.041). In conclusion, we demonstrate that BOLD signal intensity decreases during plantar flexion and this effect is augmented at higher exercise workloads.
Recent studies on the Silurian of the western part of Ukraine
Authors: Łuczyński Piotr , Skompski Stanisław , Kozłowski Wojciech 
Published: October 2016

Abstract
The paper summarises the effects of recent studies carried out by a team from the Department of Historical and Regional Geology of the Faculty of Geology, University of Warsaw on the upper Silurian of Podolia (western part of Ukraine).
The sedimentary history of the Silurian succession of Podolia is characterised by its cyclic pattern, with shallowing-upward cyclothems. In the traditional interpretation, the occurrence of stromatoporoid beds within each cyclothem marks the deepest (or most open-marine) sedimentary environment within the cycle. According to the results of recent studies, their occurrence is connected rather with a relatively shallow-water environment and with high energy phenomena. A substantial reinterpretation of the main sedimentary processes governing the deposition and facies distribution on the shelf is presented. Particularly, there are recognised and described high-energy sedimentary events repeatedly punctuating the generally calm sedimentation that prevailed in the lagoonal settings, some of which are interpreted as tsunami induced.
Further perspectives for studies on the Silurian successions of Podolia are also discussed. The main problem is the precise correlation of particular sections that are scattered over vast distances and developed in similar facies associations.
Quaternary stratigraphy and palaeogeography of Poland
Authors: Marks Leszek , Dzierżek Jan , Janiszewski Robert , Kaczorowski Jarosław , Lindner Leszek , Majecka Aleksandra , Makos Michał , Szymanek Marcin , Tołoczko-Pasek Anna , Woronko Barbara 
Published: October 2016

Abstract
Though the stratigraphical and palaeogeographical framework of the Quaternary in Poland is still to be completed, several crucial points have been confirmed recently. The preglacial series, accepted for years as belonging to the Lower Pleistocene, is undoubtedly of Early Pliocene age, with a huge hiatus above almost until the uppermost Lower Pleistocene. The earliest glaciation in Poland (Nidanian) occurred at about 900 ka BP when the ice sheet reached the mid-southern part of the country. The following Podlasian Interglacial embraced the Brunhes/Matuyama boundary in the middle, in a similar fashion to the corresponding Cromerian Complex in Western Europe. The late Early and early Middle Pleistocene interglacials in Poland comprised 2–3 optima each, whereas every one of the younger interglacials was characterised by a single optimum only. The Late Vistulian ice sheet was most extensive in the western part of Poland (Leszno Phase) whereas the younger Poznań Phase was more extensive in the central and eastern part of the country. This was due to the varied distance from the glaciation center in Scandinavia, making the ice sheet margin reach a terminal position in different times. Palaeoclimatological research in the Tatra Mountains has provided new evidence for the atmospheric circulation over Europe. During cold phases of the Pleistocene in Poland a continental climate extended further westwards, quite the opposite that occurring during warmer intervals.
Magmatic and post-magmatic phenomena in the Karkonosze granite and its metamorphic envelope (West Sudetes, SW Poland)
Authors: Kozłowski Andrzej , Ilnicki Sławomir , Matyszczak Witold , Marcinowska Agnieszka 
Published: October 2016

AbstractMineralogical studies of the Karkonosze granite (ca. 322-312 Ma) and its surroundings in West Sudetes (SW Poland) have provided data on Nb-Ta-REE minerals from pegmatites in the NE part of the pluton and several new finds of Ag minerals and 15 oxygenic Bi phases, hitherto not reported from the massif. The Karkonosze pegmatites are enriched in HREE as fergusonite-(Y) or xenotime-(Y) appear in almost every studied pegmatite, together with a subordinate assemblage of the aeschynite, euxenite or columbite group. The abundance of LREE minerals such as allanite-( Ce) and the monazite group, correlates inversely with the Nb-Ta-Ti minerals, whilst an early generation of monazite-(Ce) revealed an exceptionally high amount of Nd (up to 22 wt.% of Nd2O3). The physical and chemical conditions during the magmatic and post-magmatic processes were reconstructed and the effects of contact metamorphism in amphibolites from hornfelsed zones examined. Changes in solution composition and concentration at the early magmatic stage (825-920°C), pegmatitic stage overlapping with hydrothermal (560°C which ended at 160-90°C) and clearly hydrothermal stage (400 to 110°C) were studied in detail by means of melt and fluid inclusions in quartz. Furthermore, post-magmatic fluids, including some enriched in Li and B, were identified in rock-forming quartz from the whole pluton. In turn, study of the amphibolites indicates that the pair cummingtonite + anorthite or the presence of Ca-rich plagioclase with actinolite seem to be reliable mineral proxies of the thermal impact of the granitoid body on amphibolites in its envelope. The inferred conditions of the contact processes (450-550°C, 2.5- 4.8 kbar) point to an elevated geothermal gradient (ca. 32-45°C/km) probably reflecting the heat flow induced by the Karkonosze intrusion. Moreover, despite the textural and mineral changes imposed by regional and contact metamorphism, the amphibolites have their pre-metamorphic (magmatic) geochemical features undisturbed.
Use of numerical methods for identification of hydrodynamic field and hydrogeochemical processes in the Quaternary multi-aquifer system
Authors: Gruszczyński Tomasz , Szostakiewicz-Hołownia Marzena , Humnicki Włodzimierz , Małecki Jerzy J. , Porowska Dorota , Stępień Marcin 
Published: October 2016

Abstract
The paper presents spatial analysis and numerical methods to describe the hydrodynamic and hydrochemical conditions in a groundwater system. The research was conducted in the northern part of the Białystok High Plane, eastern Poland, within a Quaternary multi-aquifer system. Spatial analysis was used for imaging the quasi-continuous structure of the system based on a discrete set of hydrogeological data. A high-resolution regional flow model was used to identify the groundwater discharge and discharge zones of the individual aquifers. Calculations have shown a marked asymmetry of the flow system. Deeply incised river valleys in the Niemen River basin more strongly affect the groundwater than the discharge zones in the valleys of the Vistula River basin. As a result, the underground watershed in deeper aquifers is clearly shifted westward in relation to the morphological watershed. The hydrodynamic conditions of the system determined by numerical methods were used to identify the points along the groundwater flow-path for the hydrochemical study. It was the basis for the identification of points located along the groundwater flow direction, which were used in the hydrochemical study. Computational schemes of water solution models were calculated for the quasi-equilibrium state of chemical reactions between the solution and the solid and gaseous phases. Presentation of the chemical reactions allowed determining the origin of changes in the concentrations of individual components dissolved in groundwater. It was found that kaolinitization, i.e. chemical weathering of feldspars and plagioclases is the basic process that most affects the groundwater chemistry.
Changes in groundwater regime during vegetation period in Groundwater Dependent Ecosystems
Authors: Krogulec Ewa , Zabłocki Sebastian , Sawicka Katarzyna 
Published: October 2016

Abstract
An analysis of the dynamics of groundwater levels in the Groundwater Dependent Ecosystems (GDEs), which cover a vast part of the middle Vistula River valley in central Poland was carried out. The study area, typical of large river valleys, was investigated by detailed monitoring of groundwater levels. Based on statistical analysis and the geo-statistical modeling of monitoring data for 1999-2013, the range and dynamics of groundwater level fluctuations were determined for the entire interval and for the vegetation periods. The values of retention and infiltration recharge in various periods were compared with average values, indicating intervals of potential groundwater deficiency in GDEs. The amplitude of groundwater fluctuations, retention and infiltration were determined for vegetation periods characterized by the highest water intake by plants and the highest evapotranspiration. Particular attention has been drawn to the analysis of low groundwater levels in the vegetation periods, with water deficiencies potentially threatening the correct functioning of plant communities in GDEs. Moreover, the study has allowed us to indicate areas with insufficient groundwater levels during vegetation periods that may be hazardous to plant communities. The results may be a basis for the elaboration of correct management plans, protection measures and projects, or GDE renaturalization.
Influence of the Repetitive Corrugation on the Mechanism Occuring During Plastic Deformation of CuSn6 Alloy
Authors: Nuckowski P.M. , Kwaśny W. , Rdzawski Z. , Głuchowski W. , Pawlyta M. 
Published: October 2016

Abstract
This paper presents the research results of CuSn6 alloy strip at semi-hard state, plastically deformed in the process of repetitive corrugation. The influence of process parameters on the mechanical properties and structure of examined alloy were investigated. Examination in high-resolution transmission electron microscopy (HRTEM) confirmed the impact of the repetitive corrugation to obtain the nano-scale structures. It has been found, that the application of repetitive corrugation increases the tensile strength (Rm), yield strength (Rp0.2) and elastic limit (Rp0,05) of CuSn6 alloy strips. In the present work it has been confirmed that the repetitive corrugation process is a more efficient method for structure and mechanical properties modification of commercial CuSn6 alloy strip (semi-hard) as compared with the classic rolling process.
Microstructure and Service Properties of Copper Alloys
Authors: Polok-Rubiniec M. , Konieczny J. , Labisz K. , Włodarczyk-Fligier A. 
Published: October 2016

Abstract
This elaboration shows the effect of combined heat treatment and cold working on the structure and utility properties of alloyed copper. As the test material, alloyed copper CuTi4 was employed. The samples were subjected to treatment according to the following schema: 1st variant – supersaturation and ageing, 2nd variant – supersaturation, cold rolling and ageing. The paper presents the results of microstructure, hardness, and abrasion resistance. The analysis of the wipe profile geometry was realized using a Zeiss LSM 5 Exciter confocal microscope. Cold working of the supersaturated solid solution affects significantly its hardness but the cold plastic deformation causes deterioration of the wear resistance of the finally aged CuTi4 alloy.
The Influence of Laser Surface Alloying on the Thermal Fatigue Resistance of Hot Work Tool Steels
Authors: Jonda E. , Brytan Z. , Labisz K. , Drygała A. 
Published: October 2016

Abstract
The paper presents results of the effect of laser surface remelting and alloying by carbides powders of NbC, TaC, TiC, VC and WC on the structure and thermal fatigue resistance of the surface layer of hot work tool steels X40CrMoV5-1 and 32CrMoV12-28. The laser surface alloying and remelting treatments was performed using a high power diode laser (HPDL ROFIN SINAR DL 020). In order to investigate the effect of applied laser treatments and used alloying powders on the microstructure and thermal fatigue resistance of processed surface layer of hot work tool steels, the microstructure evaluation by light microscopy, hardness test, and dedicated thermal fatigue resistance test were performed. The best results regarding fatigue cracks inhibition was obtained when the surface of hot work tool steels was alloyed with TiC and VC carbides at the laser beam power of 2.0 and 2.3 kW. The grain refinement effect of laser remelting has a lower impact on the thermal crack inhibition, than a strong strengthening effect of matrix saturation in alloying elements and precipitation of fine carbides in the steel matrix.