bluuebunny/crossref_metadata_2025 huggingface dataset:
Stem Cell Yield after Bone Marrow Concentration
Authors: Dragoo Jason L. , DeBaun Malcolm R.
Published: July 2017

Objectives:

The number of Mesenchymal Stem/Stromal Cells (MSCs) in the human bone marrow (BM) is small compared to other cell types, estimated at 0.01-0.02%. Bone marrow aspirate concentration (BMAC) may be used to increase numbers of MSCs, but the efficacy of BMAC, as well as the composition of MSC subpopulations after processing, is currently unknown. The purpose of this descriptive laboratory study is to assess the enrichment of MSC subpopulations in bone marrow aspirate by two different BMAC devices versus standard BM aspiration from single donors.

Methods:

120 mL of BM was aspirated from multiple punctures of the iliac crest in 9 human male donors. Each sample was divided into 3 partitions and processed by 2 different commercially available systems Harvest BMAC or Emcyte PureBMC, and compared to untreated BM aspirate as an internal control. Samples were quantitatively analyzed with multicolor flow cytometry for cellular viability and expression of hematopoietic and MSC subpopulation markers. Colony-forming unit-fibroblasts (CFU-F) assays were performed to estimate the number of functional progenitor cells.

Results:

Cell viability after processing was over 90% in all groups without significant differences, and hematopoietic cell content was lower in BMAC where, in contrast, non-hematopoietic stem cell subpopulations were significantly enriched. Specifically, BMAC from Harvest BMAC contained more CD45-CD73+CD90+ (11.44 fold vs control, p = 0.01), CD45-CD10+ (3.68 fold vs control, p = 0.01), CD45-CD29+ (1.54 fold vs control, p = 0.03), and CD45-CD119+ (5.52 fold vs control, p = 0.02) cells, whereas Emcyte PureBMC concentrated more CD45-CD73+ cells (13.90 fold vs control, p = 0.04). Both BMAC devices mainly enriched the CD45-CD90+CD271+ MSC subpopulation (Harvest BMAC: 13,011.84 fold vs control, p = 0.001; Emcyte PureBMC: 10,669.11 fold vs control, p = 0.02) compared to other MSC subpopulations. Both BMAC systems significantly increased progenitor colonies (Harvest BMAC: 2692 CFU-F/mL; Emcyte PureBMC: 4336 CFU-F/mL) verses control BM aspiration (183 CFU-F/mL), p<0.05.

Conclusion:

BMAC devices lead to: 1) enrichment of functional mesenchymal stem cell subpopulations with distinct phenotypes, 2) no increase in hematopoietic stem cell concentration, and 3) no significant loss of cell viability.
Rhetorical Analysis of Fast-Growth Businesses’ Job Advertisements: Implications for Job Search
Authors: Engstrom Craig L. , Petre James T. , Petre Elizabeth A.
Published: July 2017

This article presents findings from a rhetorical analysis of job advertisements posted by the fastest growing companies in the United States ( Inc. 5000 rankings). The analysis suggests that companies rely on standard rhetorical figures and share similar rhetorical visions of novelty that likely effect their organizational culture, paradoxically make them homogeneous, and potentially oversell positions that require prosaic job duties. Suggestions to authors of job advertisements include writing with fewer clichés and metaphors, since they tend to reify ageist stereotypes. Suggestions for job seekers include doing rhetorical analyses of advertisements and writing résumés so they comply with job advertisements’ creative rhetorical styles.
The Benefit of a Visually Guided Beamformer in a Dynamic Speech Task
Authors: Best Virginia , Roverud Elin , Streeter Timothy , Mason Christine R. , Kidd Gerald
Published: July 2017

The aim of this study was to evaluate the performance of a visually guided hearing aid (VGHA) under conditions designed to capture some aspects of “real-world” communication settings. The VGHA uses eye gaze to steer the acoustic look direction of a highly directional beamforming microphone array. Although the VGHA has been shown to enhance speech intelligibility for fixed-location, frontal targets, it is currently not known whether these benefits persist in the face of frequent changes in location of the target talker that are typical of conversational turn-taking. Participants were 14 young adults, 7 with normal hearing and 7 with bilateral sensorineural hearing impairment. Target stimuli were sequences of 12 question–answer pairs that were embedded in a mixture of competing conversations. The participant’s task was to respond via a key press after each answer indicating whether it was correct or not. Spatialization of the stimuli and microphone array processing were done offline using recorded impulse responses, before presentation over headphones. The look direction of the array was steered according to the eye movements of the participant as they followed a visual cue presented on a widescreen monitor. Performance was compared for a “dynamic” condition in which the target stimulus moved between three locations, and a “fixed” condition with a single target location. The benefits of the VGHA over natural binaural listening observed in the fixed condition were reduced in the dynamic condition, largely because visual fixation was less accurate.
The use of tracheal sounds for the diagnosis of sleep apnoea
Authors: Penzel Thomas , Sabil AbdelKebir
Published: July 2017

Tracheal sounds have been the subject of many research studies. In this review, we describe the state of the art, original work relevant to upper airways obstruction during sleep, and ongoing research concerning the methods used when analysing tracheal sounds. Tracheal sound sensors are a simple and noninvasive means of measurement and are more reliable than other breathing sensors. Developments in acoustic processing techniques and enhancements in tracheal sound signals over the past decade have led to improvements in the accuracy and clinical relevance of diagnoses based on this technology. Past and current research suggests that they may have a significant role in the diagnosis of obstructive sleep apnoea.

Key points

Tracheal sounds are currently a topic of significant interest but are not yet used in most routine sleep study systems.

Measured at the suprasternal notch, tracheal sounds can provide reliable information on breathing sounds, snoring sounds and respiratory efforts.

Tracheal sounds may be used as a noninvasive method of studying abnormalities of the upper airways during wakefulness.

Educational aims

To understand the principles of tracheal sound measurement and analysis.

To highlight the importance of tracheal sounds for the diagnosis of sleep apnoea–hypopnoea syndrome.

To present the most relevant clinical studies that have validated the use of tracheal sound sensors and to make future clinical validation studies possible.
The three-dimensional genome organization of Drosophila melanogaster through data integration
Authors: Li Qingjiao , Tjong Harianto , Li Xiao , Gong Ke , Zhou Xianghong Jasmine , Chiolo Irene , Alber Frank
Published: July 2017

Background

Genome structures are dynamic and non-randomly organized in the nucleus of higher eukaryotes. To maximize the accuracy and coverage of three-dimensional genome structural models, it is important to integrate all available sources of experimental information about a genome’s organization. It remains a major challenge to integrate such data from various complementary experimental methods. Here, we present an approach for data integration to determine a population of complete three-dimensional genome structures that are statistically consistent with data from both genome-wide chromosome conformation capture (Hi-C) and lamina-DamID experiments.

Results

Our structures resolve the genome at the resolution of topological domains, and reproduce simultaneously both sets of experimental data. Importantly, this data deconvolution framework allows for structural heterogeneity between cells, and hence accounts for the expected plasticity of genome structures. As a case study we chooseDrosophila melanogasterembryonic cells, for which both data types are available. Our three-dimensional genome structures have strong predictive power for structural features not directly visible in the initial data sets, and reproduce experimental hallmarks of theD. melanogastergenome organization from independent and our own imaging experiments. Also they reveal a number of new insights about genome organization and its functional relevance, including the preferred locations of heterochromatic satellites of different chromosomes, and observations about homologous pairing that cannot be directly observed in the original Hi-C or lamina-DamID data.

Conclusions

Our approach allows systematic integration of Hi-C and lamina-DamID data for complete three-dimensional genome structure calculation, while also explicitly considering genome structural variability.
Antiemetics: American Society of Clinical Oncology Clinical Practice Guideline Update
Authors: Hesketh Paul J. , Kris Mark G. , Basch Ethan , Bohlke Kari , Barbour Sally Y. , Clark-Snow Rebecca Anne , Danso Michael A. , Dennis Kristopher , Dupuis L. Lee , Dusetzina Stacie B. , Eng Cathy , Feyer Petra C. , Jordan Karin , Noonan Kimberly , Sparacio Dee , Somerfield Mark R. , Lyman Gary H.
Published: July 2017

Purpose

To update the ASCO guideline for antiemetics in oncology.

Methods

ASCO convened an Expert Panel and conducted a systematic review of the medical literature for the period of November 2009 to June 2016.

Results

Forty-one publications were included in this systematic review. A phase III randomized controlled trial demonstrated that adding olanzapine to antiemetic prophylaxis reduces the likelihood of nausea among adult patients who are treated with high emetic risk antineoplastic agents. Randomized controlled trials also support an expanded role for neurokinin 1 receptor antagonists in patients who are treated with chemotherapy.

Recommendation

Key updates include the addition of olanzapine to antiemetic regimens for adults who receive high-emetic-risk antineoplastic agents or who experience breakthrough nausea and vomiting; a recommendation to administer dexamethasone on day 1 only for adults who receive anthracycline and cyclophosphamide chemotherapy; and the addition of a neurokinin 1 receptor antagonist for adults who receive carboplatin area under the curve ≥ 4 mg/mL per minute or high-dose chemotherapy, and for pediatric patients who receive high-emetic-risk antineoplastic agents. For radiation-induced nausea and vomiting, adjustments were made to anatomic regions, risk levels, and antiemetic administration schedules. Rescue therapy alone is now recommended for low-emetic-risk radiation therapy. The Expert Panel reiterated the importance of using the most effective antiemetic regimens that are appropriate for antineoplastic agents or radiotherapy being administered. Such regimens should be used with initial treatment, rather than first assessing the patient’s emetic response with less-effective treatment. Additional information is available at www.asco.org/supportive-care-guidelines and www.asco.org/guidelineswiki .
Debts of Redemption: Usury Manga and the Morality of Money in Contemporary Japan
Authors: Watanabe Takehiro
Published: July 2017

In late 1980s Japan, loan sharks surfaced as heroes in graphic novels set in the world of predatory moneylending. A genre of manga about usury gained popularity as monthlies began to run serialized stories that parody class inequality through gratuitous, chauvinistic depictions of sex and violence in the urban underground, while offering an ethnographic view into the lives of hustlers and gangsters, confidence artists and street lawyers. This article examines two usury manga titles as morality tales that speak to the widespread anxiety caused by the personal debt crisis in contemporary Japan. These street usurers point to a desire to escape a foundational ethical code of capitalism: the obligation to reciprocate. Yet this break from debt morality requires a redemption that involves theft, slavery, and death. These manga comment on the forms of debt in Japan's consumer-driven capitalism, as they relate to the postwar labor form and the technology of inscription used in authenticating the identities of economic subjects.
Risk, Incorporated: Dr. Love and Mr. Money
Authors: Bhattacharya Nandini
Published: July 2017

In this essay the author traces the mobilization of vocabularies of risk, uncertainty, and insurance within private and public affective worlds in contemporary India, and their aesthetic forms as found in Indian film and literature today. Rituparno Ghosh's film Noukadubi (2011) and Chetan Bhagat's novel Two States: The Story of My Marriage (2009) form key texts in this analysis. These texts serve as good examples of a wide repertoire of high- and middlebrow experiments with affect and its aesthetic forms in a context of intensified transactions and seepages between public and private affects and interests. The consequences of such transactions for both financial economies and desiring economies are risk, uncertainty, and insurance—formal and diegetic concerns that have come to dominate cultural production in India today. Reading markets as “affect-ed,” and affects as transactional, the author further draws upon a durable archive of negotiations and transactions between public and private affects and interests—and their consequent impact upon the contemporary neoliberal subject(s) straddling the always porous boundaries of public and private spheres—to read culture as a site of articulating specific risk awarenesses and risk orientations. The enunciations of risk, uncertainty, and insurance in vexed yet symbiotic private and public circulations of interest, affect, and identity in Noukadubi and Two States focalize performances of affect as parole and langue of existence and crisis within a global self-reflexive modernity. The two texts demonstrate risk's potential for arranging and rearranging the articulation of the particular in the general—a tension characterizing, for instance, the overall financialization of “life.” The difficult coarticulation of particular and general speculations explains why affect often takes fantasmatic, spectral, elegiac, or other ambiguous aesthetic forms and tints.
Inferring Carbon Abatement Costs in Electricity Markets: A Revealed Preference Approach Using the Shale Revolution
Authors: Cullen Joseph A. , Mansur Erin T.
Published: July 2017

This paper examines how carbon pricing would reduce emissions in the electricity sector. Both carbon prices and cheap natural gas reduce the historic cost advantage of coal plants. The shale revolution resulted in unprecedented variation in natural gas prices that we use to estimate the potential near-term effects of carbon prices. Estimates imply that a price of $20 ($70) per ton of CO2 would reduce emissions by 5 (10) percent. Carbon prices are most effective at reducing emissions when natural gas prices are low, but have negligible effects when gas prices are at levels seen prior to the shale revolution. (JEL L94, L98, Q35, Q38, Q54, Q58)
The Effects of State Medicaid Expansions for Working-Age Adults on Senior Medicare Beneficiaries
Authors: McInerney Melissa , Mellor Jennifer M. , Sabik Lindsay M.
Published: July 2017

Do Medicaid expansions to working-age adults affect healthcare spending and utilization among older Medicare beneficiaries? Although economic theory provides conflicting predictions about the presence and direction of such spillover effects, it does identify circumstances when spillovers can reduce Medicare spending. Using data on Medicaid expansions during the 2000s and microdata from the Medicare Current Beneficiary Survey, we find that a 1 percentage point rise in the share of working-age adults eligible for Medicaid has modest effects on the average Medicare beneficiary's spending, but reduces average spending by $477 among dual eligibles. Importantly, we find no evidence of adverse health effects. (JEL G22, H75, I12, I13, I18, I38, J14)
DEVELOPMENT OF LIGNITE IN CRETE. COMPARISON OF BASINS, POSSIBILITIES OF EXPLOITATION
Authors: Karageorgiou D. E. , Metaxas Α. , Karageorgiou Μ. Μ. D. , Papanikolaou G. , Georgakopoulos Α. Ν. , Vrettos K.
Published: July 2017

The island of Crete has been thoroughly explored, by various organizations, for the presence of lignite deposits, in order to examine the possibility of energy independence for the island and thus reduce the cost of consumed electric energy. Research showed that lignite generates in fluvial – lacustrine environments in many places in Crete and lignite deposits have been investigated and exploited from time to time. In the present study all lignite occurrences of the island are recorded and their generation and depositional environment is analysed. Lignite horizons from different basins are compared and correlated. An evaluation of results from previous studies is attempted, regarding both surface information and depth data, derived from borehole projects. Finally, areas suitable for lignite exploitation in the production of electricity or other uses are presented.
GEOTHERMAL DRILLING ACTIVITY IN THE AKROPOTAMOS AREA (MACEDONIA, NORTHERN GREECE)
Authors: Kolios N. , Arvanitis A. , Karydakis G. , Koutsinos S.
Published: July 2017

The Akropotamos area constitutes a new geothermal field located in the eastern coastal zone of the Strymonikos Gulf in Macedonia (Northern Greece). After a detailed and systematic reconnaissance study including water temperature measurements at the heads of the existing irrigation and water supply wells, 6 new geothermal wells were constructed. This geothermal drilling program was performed by the Institute of Geology and Mineral Exploration during October 2003 - February 2006. Temperature and fluid conductivity logs were carried out into these boreholes during their drilling and after their completion. Well AKR-1 has a depth of 275 m and produces thermal waters at a temperature of 83o C with artesian flow rate 150 m3 /h and large amounts of dissolved CO2. Well AKR- 2 of 410 m yields 25 m3 /h of waters at 46o C. Well AKR-3 was drilled down to 515 m and the temperature of 88.9o C was measured at 498 m. This well yields about 200 m3 /h CO2-rich geothermal fluids at a temperature of 90o C with artesian flow. Next to this borehole, well AKR-4 was drilled at 180 m penetrating a shallow aquifer with waters reaching 49.7o C. During pumping test with constant flow rate, this well yielded 40 m3 /h water of 48o C. Well AKR-5, 422 deep, was drilled in the western part of the study area close to the Strymon river’s mouth. The temperature of 27.8o C was recorded at 280 m into this borehole. The last well AKR-6 was drilled down to 545 m in the eastern part of the field. The temperature of 38o C was recorded at depth of 503 m. Pumping tests were performed in wells AKR-2 and AKR-4. This geothermal drilling project has resulted in the official characterization of the Akropotamos - Kavala area as a “proven low enthalpy geothermal field”.
GEOTHERMIC STATUS OF THERMOPYLAE - ANTHILI AREA IN FTHIOTIDA PREFECTURE
Authors: Metaxas A. , Varvarousis G. , Karydakis Gr. , Dotsika E. , Papanikolaou G.
Published: July 2017

The purpose of this study was the discovery, identification and evaluation of directly exploitable geothermal fields, in the Thermopylae - Anthili area (100km2 ). After the evaluation and the processing of any preexisting data, followed the surface works, such as further geological mapping, tectonic and stratigraphic correlations and analyses, geothermal impressions, observations at 30 recorded points (springs, drillings, wells) regarding water sampling, chemical analyses, temperature, pH and conductivity measurements, special sampling for Br and isotopes analyses. The in depth works that took place concern geophysical prospecting, loggings, small and large diameter drillings. All the data were digitized and processed in a GIS environment. After correlating all the data collected for the region, a geological - geothermal model was constructed. According to this model, water percolates through permeable formations, joints and faults, gets mixed with the existing salt water, warms up and then ascends to the surface through faults and concentrates on proper reservoirs. Specifically, the region of Damasta where two areas of hot water reservoirs have been identified is of particular geothermal interest. The first, located in Triassic– Jurassic limestones (more than 600m deep), presents the greatest interest in terms of temperature and capacity, while the second (found on the surface and up to 350m deep) is located in Quaternary sediments and the upper formations of the underlying Late Cretaceous limestone.
CO2 CONTENT OF GREEK LIGNITE: THE CASE OF PROASTIO LIGNITE DEPOSIT IN PTOLEMAIS BASIN, NORTHERN GREECE
Authors: Metaxas Α. , Georgakopoulos Α.Ν. , Karageorgiou D.Μ.Μ. , Papanikolaou G. , Karageorgiou E.D.
Published: July 2017

Lignite is an important energy source for Greece, which severely relies on this fossil fuel for electricity generation over the years. The lignite combustion, however, releases a significant amount of carbon dioxide to the atmosphere per unit of energy generated, more than does the combustion of other fossil fuels. On the other hand, there is a growing concern over the possible consequences of global warming due to the increase of carbon dioxide in the atmosphere (a major greenhouse gas). Additionally, there is also a need for accurate estimates of carbon dioxide emissions. There are many factors resulting in the increase of CO2 content in lignite such as their formation and depositional environment, the possible presence of fossils, and their rank. In the present paper the CO2 content of the Proastio lignite deposit, Ptolemais Basin, is studied, in relation to the depositional palaeo-environment. An interpretation of CO2 variation with depth, age and surrounding rocks is also attempted. CO2 content of Proastio deposit is compared with this of other lignite deposits in the Ptolemais Basin, of various types and ages. Finally, the effect of CO2 content in the combustion of lignite is studied, while the possibility of the geological storage of the emitted carbon dioxide is explored after its capture from the Thermal Power Plants (CCS technology).
GEOCHEMICAL INVESTIGATION AND MODELLING OF AN ACID PIT LAKE FROM A HIGH SULFIDATION ORE DEPOSIT: KIRKI, NE GREECE
Authors: Triantafyllidis S. , Skarpelis N.
Published: July 2017

Open pit mining of a high sulfidation epithermal type deposit at Kirki (Thrace, NE Greece) resulted in the formation of an acid pit lake by infilling of the open cast by rain and drainage waters after mine closure. The acidic and oxidative pit lake waters show high concentrations of trace metals largely due to the high toxic metals content of the ore, the limited buffering capacity of host rocks and the direct exposure of the ore zone to weathering. The floor of the pit lake is covered by a finegrained mineral precipitate that comprises mainly detrital minerals, originating from erosion of the rocks exposed on the walls of the open pit. Secondary anglesite, several species of the jarosite-group, rozenite, melanterite, gypsum, bukovskyite, beaverite, scorodite and minor goethite are also detected. The mineral precipitate presents significant heavy metal content indicating effective removal of metals from the acidic waters. The speciation/mass transfer computer code PHREEQC-2 and the MINTEQ database were employed for geochemical modelling of the equilibrium between the acidic pit lake waters and the secondary phases of the mineral precipitate.
NEW METALLOGENETIC CONCEPTS AND SUBSTAINABILITY PERSPECTIVES FO NON-ENERGY METALLIC MINERALS IN CENTRAL MACEDONIA, GREECE
Authors: Arvanitidis N.D.
Published: July 2017

Greece’s geology favours a potent and dynamic use of mineral resources, which became a major incentive of the country’s mining business, and economic and social growth. Among the Non-Energy Metallic Minerals (NEMM) commodities, base and precious metals, in particular copper and gold, is becoming an increasingly important and rapidly growing target of the mining industry. In the region of central Macedonia, where most of their deposits are hosted, the NEMM occur in a wide range of genetic types related to Alpine orogenic and subduction related ore forming processes extending from Mesozoic to Cenozoic times, and culminating during the Tertiary (Arvanitidis and Amov, 2006). From the global metallogenetic point of view the post-Alpine Tertiary geodynamic systems in SE Europe are potential in producing high-grade ore deposits of base and precious metal sulphide minerals. The classification of NEMM mineralizations to specific genetic types, along with the geological knowledge available, is contributing (a) to more efficient exploration and prospect evaluation (b) to safer assessment of ore potential and economic perspectives (c) to rational management of resource production, and (d) in applying sustainable development practices.
HUMAN INTERFERENCES TO THE ENVIRONMENT, CONSEQUENCES AND CARE
Authors: Lampropoulou P. , Tzevelekou Th. , Papamantellos D. , Stivanakis V , Papaefthymiou S.
Published: July 2017

The need to restore the relationship of mankind with the environment led to the designation of measures, terms and processes worldwide for the prevention or reduction to the highest possible degree of the negative consequences to the environment ensuring a high level of protection of human health and the environment. It is general ascertainment that there is a big lack of objective information in Greece regarding the possibilities of modern science and technology for the treatment of Solid Industrial Wastes (SIW), Municipal Solid Wastes (MSW) and biological Sewage Treatment Plants (STP) products safely for the public health and the environment. In Greece the most significant sources of SIW are the big exploitations of “Mineral Ores”.On the contrary, the cement industries provide an important way out for the consumption of SIW like fly ash, red mud, et. A big percentage of the total amount of produced alloys of iron, copper, zinc and aluminium do not use “Mineral Resources” as raw materials but recycle scrap metals. At the end, the successful results of pyrometallurgical production of final products by SIW as well as the results of the production of new friendly to the environment and high technology refractory materials are given in this work.
A CASE STUDY OF DIFFERENT LIMESTONES DURING QUICK LIME AND SLAKED-LIME PRODUCTION
Authors: Leontakianakos G. , Baziotis I. , Ekonomou G. , Delagrammatikas G. , Galbenis C.T. , Tsimas S.
Published: July 2017

We have examined 5 different limestones in order to study their behavior i) during calcination at different temperatures (900, 1050 and 1200°C for 30 min) and ii) after hydration of quick limes derived to slaked lime. Quick limes calcined at 900°C show the lower reactivity values. This could be related to the low calcination temperature or to the short calcination time of 30 min which was unable to produce enough lime. The samples calcined at temperatures of 1200°C are less reactive compared to the hydrated limes which were prepared by hydration of quick lime calcined at 1050°C, indicating by parameters such as the (CaO+MgO)Lime, the time required to become the temperature maximum and the reactivity rate. These, probably could be due to crystal growth at relative high temperatures.
SUITABILITY ASSESSMENT OF GRETAGEOUS LIMESTONES FROM THERMO (AITOLOKARNANIA, WESTERN GREECE) FOR THEIR USE AS BASE AND SUB-BASE AGGREGATES IN ROAD-CONSTRUCTION
Authors: Mpalatsas I. , Rigopoulos I. , Tsikouras Β. , Hatzipanagiotou K.
Published: July 2017

This paper focuses on the assessment of mineralogical, petrographical and physico-mechanical properties of limestone formations in order to evaluate their suitability as road construction aggregates. Research focuses on Olonos-Pindos zone limestones of Creataceous age in Aitoloakarnania province, Western Greece. Special emphasis was given on comparing the mechanical properties to the mineral components. The results were evaluated in accordance with Greek and International suitability Standards for road construction aggregates. It was finally concluded that the physical and mechanical properties of the tested rocks are in compliance with the suitability Standards and that they can be used as road-construction aggregates.
GEOCHEMISTRY AND TECTONIC SETTING OF ECLOGITE PROTOLITHS FROM KECHROS COMPLEX IN EAST RHODOPE (N.E. GREECE)
Authors: Baziotis I. , Mposkos E.
Published: July 2017

Eclogites and partially amphibolitized eclogites from the metamorphic Kechros complex in East Rhodope are studied in order to provide the geodynamic framework for the origin of their protoliths. Geochemical evidence from whole rock major and trace element concentrations shows two distinct protolith groups. The low-Fe-Ti eclogites (Charakoma locality) have low-TiO2 content (<0.67 wt%), negative Nb anomalies, positive Sr anomalies, small negative Zr and Hf anomalies and variable enrichments in LILE (e.g. Rb and Ba). The REE patterns are characterized by strong LREE enrichment (LaN/YbN=5.45-5.81), HREE depletion (GdN/YbN=1.60-1.63) and HREE abundance within the rangeof 9-10 × chondrite. The high-Fe-Ti eclogites (Kovalo and Virsini locality) have variable Sr contents, small to moderate LILE enrichment, HREE`s similar to MORB values and absence of Nb anomalies. The REE patterns of the Kovalo and Virsini eclogites are characterized by LREE depletion and relative flat MREE HREE patterns at approximately 20-30 × chondrite concentrations. Our results suggest that the protoliths of the Low-Ti eclogites show a continental rifting tectonic environment. In contrast, the protoliths of the High-Ti eclogites indicate formation of their protoliths by partial melting in an extensional oceanic environment.
MINERALOGY OF THE SAHARAN AEOLIAN DUST IN CRETE: EXAMPLES FROM THE PERIOD 2004-2009
Authors: Christidis G.E. , Perdikatsis V , Apostolaki Ch.
Published: July 2017

Aeolian dust sediments, which were deposited by spring rainstorms or directly by the dust cloud were collected in the Technical University of Crete during the interval 2004-2009. The samples display remarkable mineralogical homogeneity and consist of illite, quartz, calcite, albite, kaolinite, palygorskite and dolomite. Chlorite or/and smectite is present in samples collected in 2006 and 2009. Gypsum is present in the collected from the airborne dust in 2009, but not from the sample which precipitated from rain in the same day. Mirabilite was traced in the sediment collected in 2005. The presence of palygorskite and dolomite in all samples and gypsum and mirabilite in two of the collected sediments implies formation of the original material in an arid environment characterized by alkaline pH. The mineralogical composition coupled with back trajectory analysis on similar dust clouds indicate that the clouds originated in areas of Western Sahara or/and southern Morocco and that major mixing with fine-grained material from Europe is less probable. The possibility for a Central Algerian source for the airborne dust clouds is rejected because of the lack of smectite.
MANGANESE MINERALISATIONS AT THE BASE OF MIOCENE SEDIMENTS IN NORTHERN SARDINIA (ITALY)
Authors: Fadda S. , Fiori M. , Pretti S. , Valera P.
Published: July 2017

During the eastward drift of the Palaeozoic-Mesozoic block formed by Sardinia and Corsica in the Oligocene-Miocene, calc-alkaline volcanism developed mostly in the western part of the island. Most Tertiary metallogenic phoenomena are related to hydrothermal activity associated with this volcanism. Following volcanic and related hydrothermal activity, sediments were deposited during the Oligocene-Miocene as a consequence of a marine transgression. The basal part of this series is clastic and includes elements derived from erosion of unaltered volcanics as well as hydrothermally altered rocks and hydrothermal vein quartz. Inside the Tertiary volcanics manganese ore-minerals occur as nodules, veinlets, and stockworks and mainly include Mn and Fe oxides; quartz in different forms is the most common gangue mineral. The mineralisations at the contact between volcanics and Miocene sediments are the most homogeneous, the ore-minerals occur in the cement, but also as fairly continuous thin beds, nodules and veinlets containing pyrolusite, frequent ramsdellite, less frequent manganite, psilomelane, cryptomelane-manjiroite, rare ranciéite, and todorokite. The nature of the ore-bearing beds indicate a near-shore clastic environment along the ancient coastal lines of the Miocene sea. Genetic considerations point to a supergenic transport and redeposition after erosion of primary dispersion and residual concentrations of Mn in the volcanics.
INSIGHTS INTO HYDROTHERMAL ACTIVITY IN THE ITI OPHIOLITE (CENTRAL GREECE)
Authors: Karipi S. , Tsikouras B. , Rigopoulos I. , Hatzipanagiotou K. , Pomonis P.
Published: July 2017

Scarce intensely epidotised doleritic dykes, up to 1.5 m thick, penetrate in sharp contact serpentinised peridotites of the remnant ophiolite nappe of the Iti ophiolite. They are generally whitish rocks characterised by distinct and irregularly distributed, olive-green areas within the rock mass. Petrographic evidence reveals that their assemblage is dominated by quartz and epidote. Albite, chlorite and titanite occur as accessory phases. Minor opaque minerals are represented by magnetite, pyrite and chalcopyrite, as well as relic Cr spinel,. The mineral assemblage of the studied rocks comprises replacement products of the original phases under greenschist facies conditions. Moreover, the almostexclusive bi-mineralic (quartz + epidote) assemblage of the altered doleritic rocks, as well as obliteration of the original doleritic textures imply extensive recrystallisation, controlled by hydrothermal circulation. The compositions of the phases in these dykes mark the most alteration-resistant chemical components that have the potential to remain in their original associations, during such extensive recrystallisation.
HEAVY METALS IN STREAM SEDIMENTS AFFECTED BY A LANDFILL AND ASSOCIATED IMPACT ON GROUNDWATER QUALITY
Authors: Koutsopoulou E. , Tsolis-Katagas P. , Papoulis D.
Published: July 2017

Sanitary landfill facilities are essential to modern societies as repositories for municipal solid wastes. However, they always entrain a certain risk of environmental impact. For this reason monitoring is essential to their operation. In the present work, the environmental impact of such a landfill is studied. Soil samples were collected in and around the landfill and their mineralogy was studied. Top layers of stream sediments were collected to examine possible dispersion of pollutants in the environment. Chemical analyses showed enrichment in As, Cu, Zn, and Pb in the stream sediments compared to uncontaminated samples. The presence of anions such as chloride, sulphate and phosphate adsorbed on clay minerals suggest the interaction of stream sediments with run-off water from the landfill. The groundwater near the landfill site was characterised as not potable and not suitable for irrigation purposes, because some parameters such as NO3 - and Cl- were close or exceeded the permissible limits given by EE, EPA and WHO.
MINERALOGICAL CONTRAINTS TO THE FORMATION OF VEIN-TYPE ZEOLITES FROM KIZARI AREA, THRACE NORTHERN GREECE
Authors: Voudouris P. , Magganas A. , Kati M. , Gerogianni N. , Kastanioti G. , Sakelaris G.
Published: July 2017

Vein-type zeolites in Kizari area, (western Thrace) are found within fresh to zeolitic altered volcanic rocks of andesitic to dacitic composition. The zeolites stilbite-Ca, Sr-bearing heulandite-Ca and laumontite occur in epithermal-style crustiform quartz/chalcedony-calcite veins crosscuting lavas and volcanic breccias. Open-space filling is common and well-shaped crystals (up to 3cm) were observed. Smectite, feldspar, magnetite, pyrite and rutile occur in minor amounts in the veins. Halite and barite grains are included in stilbite-Ca. SEM EDS data indicate high Sr (up to 4.4 wt. % SrO) and Ba (up to 2.9 wt. % BaO) contents for heulandite-Ca. It is suggested that the studied zeolites are intergral parts of the porphyry-epithermal mineralizing systems which operated in the area during the Oligocene. Their formation took place in the outmost transitional propylitic to fresh zones of the porphyry-epithermal systems and in a submarine environment as indicated by the geological and mineralogical evidence.
Exact Approaches for Designing Multifacility Buy-at-Bulk Networks
Authors: Arulselvan Ashwin , Rezapour Mohsen , Welz Wolfgang A.
Published: July 2017

We study a problem that integrates buy-at-bulk network design into the classical facility location problem. We consider a generalization of the facility location problem where multiple clients may share a capacitated network to connect to open facilities instead of requiring direct links. In this problem, we wish to open facilities, build a routing network by installing access cables of different costs and capacities, and route every client demand to an open facility.

We provide a path-based formulation and we compare it with the natural compact formulation for this problem. We then design an exact branch-price-and-cut algorithm for solving the path-based formulation. We study the effect of two families of valid inequalities. In addition to this, we present three different types of primal heuristics and employ a hybrid approach to effectively combine these heuristics in order to improve the primal bounds. We finally report the results of our approach that were tested on a set of real world instances, as well as two sets of benchmark instances and evaluate the effects of our valid inequalities and primal heuristics.
A road map to success
Authors: Macgregor Tommy
Published: July 2017

Tommy Macgregor considers the importance of education in the developing role of dental nurses
Modeling and Optimization of Dough Properties Using Response Surface Design
Authors: Lee Kooyeon , Choi Gwkang Seok , Kim Tae Woo , Cho Kwan Hyung , Kang Dongjin , Kim Sung Tae , Jang Dong-Jin
Published: July 2017

The purpose of this study was to optimize dough properties using response surface methodology (RSM) and to demonstrate the performances of dough prepared under optimized conditions. Dough mixed with yeast, margarine, salt, sugar and wheat flour was prepared by fermentation process. Hardness, cohesiveness and springiness of dough were selected as critical quality attributes. The critical formulations (yeast and water) and process (fermentation time) variables were selected as critical input variables based on preliminary experiment. Box-Behnken design (BBD) was used as RSM. As a result, the quardratic, the squared and the linear model respectively provided the most appropriate fit (R2>90) and had no significant lack of fit (p>0.05) on critical quality attributes (hardness, cohesiveness and springiness). The accurate prediction of dough characteristics was possible from the selected models. It was confirmed by validation that a good correlation was obtained between the actual and predicted values. In conclusion, the methodologies using RSM in this study might be applicable to the optimization of fermented foods containing various wheat flour and yeast.
Evaluation of Antimicrobial Activity of Steamed and Fermented Asparagus cochinchinenesis
Authors: Lee Seung-Min , Kim Su-In , Kang Moon-Sun , Lee Chung-Yeol , Hwang Dae-Youn , Lee Hee-Sup , Kim Dong-Seob
Published: July 2017

This study was carried out to investigate antimicrobial activity and characteristics of Asparagus cochinchinenesis which was steamed and fermented with lactic acid bacteria. A. cochinchinensis was prepared to steaming process which was washed and freeze dried. A. cochinchinensis was steamed at 95°C for 12 h and dried by hot air at 50°C for 24 h. After steaming process, A. cochinchinensis was fermented with lactic acid bacteria (Leuconostoc mesenteroides 4395, Lactobacillus sakei 383 and Lactobacillus plantarum KCCM 11322). Ethyl acetate extracts of fermented A. cochinchinensis had antimicrobial activities for the respiratory disease bacteria (Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa and Escherichia coli). A. cochinchinensis had highest antimicrobial activity for the P. aeruginosa which fermented with L. mesenteroides 4395. The minimum inhibition concentration (MIC) of A. cochinchinensis fermented with L. mesenteroides 4395 was 10 mg/mL for S. aureus, S. epidermidis, E. coli and 5 mg/mL for P. aeruginosa. The MIC of A. cochinchinensis fermented with L. sakei 383 and A. cochinchinensis fermented with L. plantarum KCCM 11322 were the same. Total sugar was decreased from 863.33±17.47 mg/mL to 722.67±5.51 mg/mL during the steaming process. But reducing sugar was increased from 99.36±1.32 mg/mL to 109.29±2.71 mg/mL during the steaming process. Total sugar was decreased to 301.50-361.42 mg/mL and reducing sugar was decreased to 27.39-62.20 mg/mL during the fermentation process.
Molecular Typing of Leuconostoc citreum Strains Isolated from Korean Fermented Foods Using a Random Amplified Polymorphic DNA Marker
Authors: Kaur Jasmine , Lee Sulhee , Sharma Anshul , Park Young-Seo
Published: July 2017

For preliminary molecular typing, PCR-based fingerprinting using random amplified polymorphic DNA (RAPD) is the method of choice. In this study, 14 bacterial strains were isolated from different Korean food sources, identified using 16S rRNA gene sequencing, and characterized through RAPD-PCR. Two PCR primers (239 and KAY3) generated a total of 130 RAPD bands, 14 distinct PCR profiles, 10 polymorphic bands, one monomorphic band, and four unique bands. Dendrogram-based analysis with primer 239 showed that all 14 strains could be divided into seven clades out of which clade VII had the maximum of seven. In contrast, dendrogram analysis with the primer KAY3 divided the 14 L. citreum strains into four clades out of which clade IV consisted of a maximum of 10 strains out of 14. This research identified and characterized bacterial populations associated with different Korean foods. The proposed RAPD-PCR method, based on sequence amplification, could easily identify and discriminate the lactic acid bacteria species at the strain-specific level and could be used as a highly reliable genomic fingerprinting tool.
Avaliação dos Serviços Prestados pela Companhia Pernambucana de Saneamento no Município de Petrolina
Authors: Silva Júnior Cícero Bezerra da , Silva Geferson Wilson da , Marques Neto Joaquim , Silva Natanael Marques da , Caffé Filho Hesler Piedade
Published: July 2017

O presente artigo consiste no estudo da prestação de serviços públicos de abastecimento de água e esgotamento sanitário no município de Petrolina-PE, ofertada de forma descentralizada por uma sociedade de economia mista, segundo os princípios da legalidade, impessoalidade, moralidade, publicidade e eficiência, norteadores da administração pública, visando a satisfação da coletividade. O objetivo deste trabalho é avaliar a adequação dos serviços prestados pela Concessionária Companhia Pernambucana de Saneamento às condições de regularidade, continuidade, eficiência, atualidade, cortesia e modicidade de tarifas previstas na Lei nº 8.987/1995. A pesquisa foi realizada de forma exploratória através de levantamento bibliográfico e aplicação de questionário, durante o período de 23 a 02 de março de 2017, a 75 moradores dos bairros centrais e periféricos de Petrolina, escolhidos de forma aleatória. Os resultados sugerem uma negligência da concessionária quanto aos quesitos pesquisados, levando ao diagnóstico de insatisfação dos moradores questionados, indicando a necessidade de intervenção pelo Poder Concedente.
Agentes Comunitários de Saúde e Sgentes de Combate a Endemias: Desafios para controle do Aedes aegypti
Authors: Mesquita Fabíola Olinda de Souza , Parente Alaine Santos , Coelho Glória Maria Pinto
Published: July 2017

O controle das doenças transmitidas pelo vetor Aedes aegypti está relacionado a um conjunto de ações ligadas a atenção primária a saúde, vigilância em saúde, educação em saúde e participação social. Considerando a importância da realização de ações integradas o objetivo desse estudo foi identificar como ocorre a articulação dos Agentes Comunitários de Saúde (ACS) com os Agentes de Combate a Endemias (ACE) no cotidiano das ações de prevenção e controle do Aedes aegypti. Foi realizado revisão de literatura através da análise de artigos publicados no período de 2011 a 2016 na base de dados Scientific Electronic Library Online (Scielo) e Biblioteca Virtual em Saúde (BVS). A partir da análise observou-se que as ações de controle ao vetor exigem dos profissionais, um trabalho integrado, multiprofissional. As ações extrapolam o setor saúde sendo indispensável fomentar políticas intersetoriais, ampliar a educação permanente dos profissionais e estimular a participação ativa da sociedade.
Como o acúmulo de Atividades Administrativas no Colegiado Acadêmico de Ciências da Natureza da UNIVASF Campus Senhor do Bonfim - BA interfere na Produtividade do Servidor: Um Estudo de Caso
Authors: Caffé Filho Hesler Piedade , Souza Jairo Dos Santos , Amorim Ricardo De Santana
Published: July 2017

O presente trabalho faz um estudo de como o acumulo de atividades administrativas podem interferir na qualidade e produtividade do servidor público federal. O estudo foi realizado no Colegiado Acadêmico de Ciências da Natureza da Universidade Federal do Vale do São Francisco - Univasf, no Campus de Senhor do Bonfim – BA. A partir da análise dos dados que foram coletados, foi possível verificar o que estava acarretando o acúmulo de atividades administrativas.
Democracia Participativa: Participação da Sociedade nas Ações do Governo Municipal de Salgueiro
Authors: Santos Souza Cristiane Ana , Barros Luz Anna Soraya , Pereira de Lucena Christianne , De Barros Maria Hilda , Rodrigues de Oliveira Emília , Piedade Caffé Filho Hesler
Published: July 2017

A democracia participativa é um desenho de exercício do poder, fundamentada na participação dos cidadãos nas tomadas de deliberação política. Com base nisso, esta pesquisa tinha como objetivo de analisar a participação da sociedade do município de Salgueiro-PE nas ações do governo municipal local. Quanto aos aspectos metodológicos, utilizou-se o método qualitativo, lançando mão de duas técnicas de coleta de dados: questionário e entrevista, usando uma amostra aleatória da população de Salgueiro. Dentre os resultados alcançados, obteve-se que o nível de participação da população é muito baixo e que os que participam o fazem esporadicamente ou quando são convocados por algum motivo de seu interesse.Conclui-se que é necessária a realização de ações contínuas, com o intuito de orientação popular, para estabelecer uma cultura democrática participativa no município, tornando os cidadãos mais conscientes do seu papel.
Degradação Ambiental: Exploração de Gipsita no Polo Gesseiro do Araripe
Authors: Granja Camila Victória Alencar , Cavalcante Érica Pereira , Caffé Filho Hesler Piedade , Siqueira Maírla Silva , Nascimento Willian Do
Published: July 2017

O Artigo trata dos efeitos decorrentes da exploração de gipsita no Polo Gesseiro do Araripe, maior exportados de gesso de todo o Brasil.Sendo a principal fonte de renda da região, as atividades gesseiras necessitam ter suas ações com caráter sustentável. A matéria energética para a fabricação de gesso nas fábricas desta região é extraído da lenha do Bioma Caatinga, este bioma único do Brasil, corre o risco de desertificação, comprometendo espécies da fauna, flora, além de gerar impactos nas atividades gesseiras, ocorrendo um circulo de impactos, afetando a economia, o desenvolvimento e a sociedade.Com o intuito de explanar e alertar sobre os efeitos da degradação ambiental nesta APL, este artigo traz uma entrevista com a Secretária Executiva de Meio Ambiente de Araripina, informações sobre o Bioma Caatinga, a importância da exportação de gipsita na economia da região, além de deveres e ações de Instituições Públicas.