bluuebunny/crossref_metadata_2025_split huggingface dataset:
Photosynthetic activity in three vascular species of Spitsbergen vegetation during summer season in response to microclimate
Authors: Barták Miloš , Váczi Peter , Hájek Josef 
Published: January 2013

Abstract
Diurnal measurements of photosynthetic processes, effective quantum yield of photosystem II (ΦPSII), photosynthetic electron transport rate (ETR) were done in three dominant species of Arctic tundra (Silene acaulis, Dryas octopetala, Salix polaris) in Petuniabukta, Spitsbergen. Daily courses of net photosynthesis (PN) were calculated from chlorophyll fluorescence data and daily photosynthesis evaluated. The short-term field measurements were carried out in summer 2009, and 2010. Fluorometric parameters (ΦPSII and ETR) weremeasured each 5 minutes as well as microclimate characteristics of the site for 10 (2009) and 8 days (2010), respectively. In all species photosynthetic ETR was well related to incident photosynthetically active radiation and leaf temperature. In general, D. octopetala exhibited slightly lower ETR than the other two species. Estimated maximum photosynthetic rate
(PNmax) reached 17.6, 21.4, and 22.9 μmol CO2 m-2 s-1 for S. polaris, S. acaulis, and D. octopetala, respectively. Daily photosynthesis reached comparable values in all species, D. otopetala, however, exhibited slightly lower values than the other two species both for overcast and fully sunny days (3.9 and 13.4 mmol CO2 m-2 d-1, respectively). The range of daily photosynthesis for S. polaris and S. acaulis studied, reached the ranges of 4.6-6.9 and 14.6-15.2 mmol CO2 m-2 d-1 for overcast and fully sunny day, respectively.
Impact of warming on Nostoc colonies (Cyanobacteria) in a wet hummock meadow, Spitsbergen
Authors: Elster Josef , Kvíderová Jana , Hájek Tomáš , Láska Kamil , Šimek Miloslav 
Published: January 2013

Abstract
In order to simulate the warming effects on Arctic wetlands, three passive open-top chambers (OTCs) and three control cage-like structures (CCSs) equipped with soil temperature and soil volumetric water content (VWC) probes for continuous micro- climatic measurements were installed in a wet hummock meadow, Petuniabukta, Bille- fjorden, central Spitsbergen, in 2009. The warming effects on primary productivity were investigated during summer seasons 2009 and 2010 in cyanobacterial colonies of Nostoccommune s.l., which plays an important role in the local carbon and nitrogen cycles. The microclimatic data indicated that the effect of OTCs was dependent on microtopography. During winter, two short-term snow-thaw episodes occurred, so that liquid water was available for the Nostoc communities. Because of the warming, the OTC hummock bases remained unfrozen three weeks longer in comparison to the CCSs and, in spring, the OTC hummock tops and bases exceeded 0°C several days earlier than CCS ones. Mean summer temperature differences were 1.6°C in OTC and CCS hummock tops, and 0.3°C in the OTC and CCS hummock bases. The hummock tops were drier than their bases; however the VWC difference between theOTCs and CCSs was small. Due to the onlyminor differences in the microclimate of OTC and CCS hummock bases, where the Nostoc colonies were located, no differences in ecophysiological characteristics of Nostoc colonies expressed as photochemistry parameters and nitrogenase activities were detected after two years exposition. Long-term monitoring of Nostoc ecophysiology in a manipulated environment is necessary for understanding their development under climate warming.
Selection of kinematic structure for portable machine tool
Authors: Nowak Monika , Jastrzębski Daniel 
Published: January 2013

Selection of kinematic structure for portable machine tool
The article presents the problem of selecting kinematic structures for the proposed portable machine tool. Developed methodology of selection has been based on the detailed design requirements and elimination conditions formulated thanks to them. The paper describes the program developed to assist the process of selecting the kinematic structures for the portable machine tool and the results achieved.
Technological problems in machining of resilient wheelsets on wheel-turning lathes with friction drive
Authors: Filipowicz Krzysztof , Biedunkiewicz Witold , Królikowski Marcin , Grzesiak Dariusz 
Published: January 2013

Technological problems in machining of resilient wheelsets on wheel-turning lathes with friction drive
Article presents attempt of identification of technological problems in machining of resilient wheelsets on wheel- turning lathes with friction drive. Main part of presented research was modelling of machined wheel using finite elements method in conditions of load with forces measured during machining of railway wheelsets. Presented research is a part of works performed in order to enable regeneration of tyre profiles of resilient wheelsets using wheel-turning lathes with friction drive, which are commonly used nowadays for machining heavy railway wheelsets.
The growth of Thermomyces lanuginosus (TSIKL.) isolates from garden composts and coffee beans on cellulose substrates and xylan at various water activity
Authors: Markowska-Szczupak Agata , Ulfig Krzysztof , Janda Katarzyna 
Published: January 2013

Abstract
The study was to determine the effect of water activity (0.850; 0.900; 0.950; 0.995; and 0.999 aw) on the growth of T. lanuginosus on solid media containing different cellulose substrates (crystalline cellulose, carboxymethyl cellulose - CMC, fi lter paper, and sawdust) and xylan. The growth of isolates from coffee beans and garden composts were compared. All isolates did not grow on media with aw < 0.950. On media with aw > 0.950, the hydrolysis zones were only observed on xylan and CMC. The highest daily growth and hydrolysis zone rates were mostly obtained at 0.995 aw and the lowest values were observed at 0.950 aw. The coffee beans isolates at 0.950 aw had the CMC hydrolysis coeffi cient 1.7-times higher than that for xylan. The fungal growth (FG) coeffi cient data indicate that the coffee beans isolates were able to utilize CMC and crystalline cellulose for growth and the highest growth rate was obtained at 0.999 aw. Subsequently, the compost isolates were able to grow on all substrates but the highest growth rate was obtained on CMC at 0.950 and 0.999 aw. Thus, coffee beans and composts provide T. lanuginosus isolates with various growth and hydrolytic zone rates in the range of 0.950−0.999 aw.
Combined Statistical Analysis Method Assessing Fast Versus Slow Movement Training in a Patient With Cerebellar Stroke: A Single-Case Study
Authors: Deng Huiqiong , Kimberley Teresa J. , Durfee William K. , Dressler Brittany L. , Steil Carie , Carey James R. 
Published: January 2013

BackgroundGold standards of data analysis for single-case research do not currently exist.ObjectiveThe purpose of this study was to determine whether a combined statistical analysis method is more effective in assessing movement training effects in a patient with cerebellar stroke.DesignA crossover single-case research design was conducted.MethodsThe patient was a 69-year-old man with a chronic cerebellar infarct who received two 5-week phases of finger tracking training at different movement rates. Changes were measured with the Box and Block Test, the Jebsen-Taylor test, the finger extension force test, and the corticospinal excitability test. Both visual analysis and statistical tests (including split-middle line method, t test, confidence interval, and effect size) were used to assess potential intervention effects.ResultsThe results of the t tests were highly consistent with the confidence interval tests, but less consistent with the split-middle line method. Most results produced medium to large effect sizes.LimitationsThe possibility of an incomplete washout effect was a confounding factor in the current analyses.ConclusionsThe combined statistical analysis method may assist researchers in assessing intervention effects in single-case stroke rehabilitation studies.
Ectopic extramedullary hematopoiesis: evaluation and treatment of a rare and benign paraspinal/epidural tumor
Authors: Mattei Tobias A. , Higgins Michael , Joseph Flynn , Mendel Ehud 
Published: January 2013

Ectopic extramedullary hematopoiesis (EMH), defined as the formation of blood cells outside the bone marrow, usually occurs in a scenario of chronic anemia when, even after conversion of the bony yellow marrow to red marrow, the body is still unable to meet the demand for red blood cells. Ectopic extramedullary hematopoiesis most commonly occurs in the liver and spleen but may, in fact, occur almost anywhere in the body. Although previous reports have documented EMH presenting as paraspinal masses, such lesions have almost always been associated with a predisposing hematological disorder such as hemolytic anemia, myelofibrosis or myelodysplastic syndromes, thalassemia, polycythemia vera, leukemia, or lymphoma.
The authors of this report describe the first reported instance of EMH in a patient presenting with a symptomatic epidural and paraspinal cervical lesion arising from the posterior spinal elements and no known predisposing hematological disease. Initial radiographs revealed a bony lesion arising posteriorly from the C2–3 laminae and spinous processes. Subsequent imaging suggested the diagnosis, which was confirmed by CT-guided biopsy, peripheral blood smears, and bone marrow aspirate. Despite epidural compression and slight displacement of the cervical cord and thecal sac, the patient's symptoms were limited to pain and diminished cervical range of motion. Therefore, surgery was deferred in favor of nonsurgical therapy. Several alternative modalities for the treatment of EMH have been suggested in the literature, including cytotoxic agents and radiotherapy. The authors opted for an approach utilizing directed low-dose radiotherapy of a total of 25 Gy divided in 2.5-Gy fractions. At the 3-month follow-up, the patient continued to be asymptomatic, and MRI demonstrated a significant reduction in the dimensions of the lesion.
Extramedullary hematopoiesis with spinal cord compression in the absence of a preexisting hematological disorder has not been described in the context of clinical neurosurgical practice. Recognizing that EMH may present as an epidural or paraspinal lesion is important since chemotherapy and radiotherapy are effective therapeutic options in the majority of patients who suffer few if any symptoms. Extensive evaluation for underlying hematological disorders is necessary before undertaking directed therapy. Inadvertent resection of these highly vascularized masses may risk catastrophic intraoperative hemorrhage with no proven benefit as compared with medical treatment, which usually provides excellent long-term outcomes.
Un ritratto di età gallienica da Hierapolis di Frigia
Authors: Ismaelli Tommaso 
Published: January 2013

Résumé Lors des fouilles récentes de la Mission archéologique italienne à Hiérapolis de Phrygie (Denizli, Turquie) a été mise au jour une tête, le portrait d’un homme, qui provient d’un édifice public situé au centre de la cité. Bien conservé et finement travaillé, l’objet remonte à la première partie du règne de Gallien, une datation avancée autant pour des raisons techniques, dans le traitement de la chevelure, que par des comparaisons iconographiques avec le « Samtherrschaftstypus » (« type du pouvoir partagé » ; 253-260 apr. J.-C.). Ces allusions délibérées à Gallien vont de pair avec des traits typiques des portraits des « empereurs-soldats », selon un phénomène mis en évidence pour d’autres portraits masculins. Cette découverte exceptionnelle est mise en relation avec les centres de production en Asie Mineure, avec la question débattue de la « renaissance » sous Gallien et de sa réception dans les cités d’Asie Mineure. Pour finir, le goût suranné et l’intensité du visage sont examinés comme exprimant les valeurs conservatrices qui caractérisaient la politique culturelle impériale et les élites locales.
Le Dioscure du Quirinal dans la Gypsothèque du Musée du Louvre
Authors: Le Breton Élisabeth 
Published: January 2013

Résumé La restauration, en 2006-2007, d’un moulage du groupe dit « des Dioscures de Monte Cavallo », conservé dans la Gypsothèque du Musée du Louvre à Versailles, dans la Petite Écurie du Roi, a offert l’occasion de se pencher sur son histoire mouvementée. Comment naquit l’idée d’obtenir un moulage aussi imposant, quand et à quelle fin ? Depuis leur installation au xvi e s., à Rome, sur la colline du Quirinal, ces colosses ne cessent de fasciner et l’Europe entière cherche alors à obtenir une prise d’empreinte. Des projets sont lancés très tôt en France, mais il faudra attendre 1823 pour qu’enfin les creux d’un des Dioscures arrivent au Louvre, venant de Rome via Londres. Le tirage en plâtre passera en 1868 à l’École impériale des Beaux-Arts, d’où il sera évacué en 1970, en pièces découpées, vers les Écuries du Roi à Versailles. Affecté au Département des antiquités grecques, étrusques et romaines du Musée du Louvre en 2001, ce moulage colossal est maintenant redressé sous la rotonde de la Gypsothèque.
A la recherche de l'architecture et de son décor en Gaule romaine
Authors: Barbet Alix 
Published: January 2013

Résumé En partant des actes d’un colloque tenu à Toulouse en 2008, qui traite du décor dans son ensemble et de ses rapports avec l’architecture antique en Gaule romaine, l’auteur élargit et complète le propos en apportant une contribution à l’articulation des décors et à l’interaction entre mosaïque, peinture, stuc et placages, sans oublier la sculpture, non prise en compte dans ces actes.
Chronique d'architecture grecque (2011)
Authors: Hellmann Marie-Christine 
Published: January 2013

Résumé Deux grosses monographies parues en 2011 sont analysées, portant chacune sur un monument grec peu ou mal connu, quoique important : d’abord, la publication du temple d’Asclépios à Messène, qui a offert à son auteur l’occasion de faire le point sur d’autres édifices de la cité et, plus généralement, sur l’architecture religieuse à l’époque hellénistique ; ensuite, l’étude très complète dont ont bénéficié les fortifications de Thasos, qui comprennent aussi un port « fermé ».
La relation de soin avec l'adolescent en psychiatrie
Authors: Abdel-Ahad Pierre , Scheuer Michel , Richa Sami 
Published: January 2013

Résumé La personnalité en développement de l’adolescent et sa quête d’autonomie lui confèrent un statut spécial au sein du système de santé. À un âge transitionnel entre l’enfance et l’âge adulte, la société lui accorde un degré d’autonomie qui risque de mettre en cause l’autorité parentale protectrice. Ces particularités s’inscrivent dans une évolution sociétale libérale, où la promotion du concept de « consentement éclairé » transforme la relation médecin-patient.
A 66-Year-Old Woman with Facial Tics and Social Impairment
Authors: Garakani Amir , Welch Alison K. , Newcorn Jeffrey H. 
Published: January 2013

CME Educational Objectives

1.
Establish the differential diagnosis for an older patient presenting with inattention and deficits in interpersonal functioning.

2.
Understand the potential risks and benefits of various pharmacological treatment options for older adults with attention-deficit/hyperactivity disorder (ADHD).

3.
Review the potential role of cognitive-behavioral therapy in ADHD refractory to psychopharmacologic interventions.

A 66-year-old married, retired white woman with a medical history of hypertension and a self-reported history of attention problems is referred to a psychiatrist for medication management. On initial contact, the patient indicated that she had been diagnosed with attention-deficit/hyperactivity disorder as an adult and was previously managed by another psychiatrist, now retired.
A 26-Year-Old Male with Distractibility, Disorganization, and Chronic Unemployment
Authors: LaLonde Mary M. , Powers Laura , Solanto Mary V. 
Published: January 2013

CME Educational Objectives

1.
Recognize the signs and symptoms of attention-deficit/hyperactivity disorder (ADHD) in adults.

2.
Learn to apply current and developing diagnostic criteria to definitively diagnose ADHD and potential comorbid conditions in adults.

3.
Understand the usefulness of cognitive-behavioral therapy as part of a comprehensive treatment plan for ADHD in adults.

A 26-year-old, single, college-educated, white male sought treatment for self-described symptoms of attention-deficit/hyper-activity disorder. He had been minimally employed since completing college and was unemployed for the past 2 years. Due to this unemployment, he had accrued a large credit card debt and was unable to pay child support for his daughter. He reported receiving some mental health treatment during college in the context of feeling overwhelmed by his coursework and experiencing difficulty completing projects for his classes, but he denied any prior diagnosis of attention-deficit/hyperactivity disorder.
The Intersection of Symptomatology in Adult ADHD and Bipolar Disorder
Authors: Soleimani Laili , Burdick Katherine E. , Goldberg Joseph F. , Simon Asher B. 
Published: January 2013

CME Educational Objectives

1.
Understand the overlapping and unique presentations of adult attention-deficit/hyperactivity disorder (ADHD) and bipolar disorders.

2.
Understand the cognitive components of adult ADHD and bipolar disorder.

3.
Recognize the applicability of various rating scales used in clinical work to distinguish adult ADHD from bipolar disorder.

Case 1
Mr. A was a 40-year-old white man with a psychiatric history of bipolar disorder and adult attention-deficit/hyperactivity disorder, who presented to the clinic for treatment of a depressive episode characterized by his feeling depressed, isolated, and anhedonic, with significant neurovegetative symptoms and intermittent passive suicidal ideation.
A 19-Year-Old Male with Multiple Tics and Attentional Difficulties
Authors: Leibu Evan , Coffey Barbara J. 
Published: January 2013

CME Educational Objectives

1.
Be able to screen for attention-deficit/hyperactivity disorder (ADHD) in adults with childhood-onset Tourette’s disorder.

2.
Understand the clinical manifestations of late adolescent and young adult ADHD comorbid with childhood-onset Tourette’s disorder.

3.
Identify appropriate treatment options for adult and late adolescent ADHD when comorbid with Tourette’s disorder.

Now a 19-year-old white man, Henry (not his real name) has suffered from multiple tics and attentional difficulties for many years. He originally presented to the clinic when he was 12 years of age, after experiencing attentional and academic decline in his seventh-grade class, in the setting of a recent parental divorce.
Speleogenesis along deep regional faults by ascending waters: case studies from Slovakia and Czech Republic
Authors: Bella Pavel , Bosak Pavel 
Published: January 2013

The most conspicuous six examples illustrating ascending (perascensum) speleogenesis linked with deep faults/fault systemswere selected from Slovakia and Czech Republic. In the past,the caves have been described as product of phreatic, epiphreaticand vadose speleogenesis related to the evolution of localwater courses and valley incision, and linked mostly with Pleistocenegeomorphic evolution. Our analysis illustrates severalcommon characteristics of caves: (1) they developed along or inclose vicinity of deep faults/fault zones, commonly of regionalimportance; (2) the groundwater ascended due to deep faults/fault systems mostly as results of deep regional circulation ofmeteoric waters from adjacent karst or nonkarst areas; (3) the3D mazes and labyrinths dominate in cave morphology; (4)speleogens (e.g., cupolas, slots, ceiling channels, spongework,rugged phreatic morphology especially along slots) indicateascending speleogenesis in deep phreatic to phreatic environments;(5) they exhibit poor relation to the present landscape;in some of them fluvial sediments are completely missing inspite of surface rivers/streams in the direct vicinity; (6) strongepiphreatic re-modelling is common in general (e.g., subhorizontalpassages arranged in cave levels, water-table flat ceilingsand notches) and related to the evolution of the recent landscape;(7) recharge structures and correlate surface precipitatesare poorly preserved or completely missing (denuded) on thepresent surface in spite of fact that recent recharges broadlyprecipitate travertines; (8) caves can be, and some of them are,substantially older than the recent landscape (Pliocene, Miocene),and (9) caves were formed in conditions of slow water ascent, which differentiate the process from faster vauclusianascending speleogenetical models. Any of described caves containsclear diagnostic features of real hypogene caves. There aremissing evidences that at least heated groundwaters took partduring speleogenesis of studied caves, nevertheless, somewhatincreased water temperature can be expected during speleogenesisat least in some of caves. Any of described caves cannotbe directly characterized as product of thermal waters or hydrothermalprocess (i.e. as real hyperkarst sensu Cigna 1978),therefore they do not represent hypogenic caves.
The Effect of Immigration on Unskilled Native Workers: Evidence from a Natural Experiment
Authors: Asali Muhammad 
Published: January 2013

This study exploits the natural experiment, provided by the start of the second intifada, to measure the effect of immigration on the wage and employment of unskilled native workers. It finds that immigration has no effect on the wage or employment of unskilled Jewish workers. The wage and employment of the least‐skilled Israeli Arab workers (with zero to five years of schooling) are adversely affected by immigration. The slightly more skilled Arab workers (with six to 11 years of schooling), in contrast, are positively affected by immigration, suggesting a complementarity effect with this group. Different explanations are proposed.
Relationship between Fluor Concentration and Structure Pattern of Enamel Prism in Enamel Surface after Coffee and Black Tea Exposure
Authors: Nasution Abdillah Imron , Gani Basri A , Pospos Rini Maulida 
Published: January 2013

ABSTRACT
Coffee and tea are often consumed by Indonesian and Aceh people. Based on previous research reported that concentration of fluor in coffee and tea affects pattern structure of enamel prism. Currently, little explanation about relationship between fluor concentrations and pattern structure of enamel prism in enamel surface after coffee and tea drinking water exposure. The purpose of this study is to explain relationship between fluor concentrations and pattern structure of enamel prism in enamel surface after coffee and tea drinking water exposure.

Materials and methods
Eight maxillary premolars were divided into control and treatment group. Positive control group exposure to NaCl 0.9%, negative control group exposure to sulfuric acid 50%, treatment groups are exposure to coffee and tea drinking water. This study conducted by scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX). Data analysis is descriptive qualitative.

Results
Fluor in tea increases the density of the enamel prism structure pattern. Surface enamel that exposed to tea has described better arrangement of enamel prism pattern than enamel surface that exposed to coffee.

Conclusion
Fluor concentration in drinking water has relationship with structure patterns of enamel prism. The structure patterns of enamel prism that exposed to tea have better arrangement than enamel that exposed to coffee.

How to cite this article
Nasution AI, Gani BA, Pospos RM. Relationship between Fluor Concentration and Structure Pattern of Enamel Prism in Enamel Surface after Coffee and Black Tea Exposure. World J Dent 2012;3(4):284-289.