bluuebunny/crossref_metadata_2025 huggingface dataset:
The role of programme directors as academic leaders
Authors: Milburn Peter C.
Published: July 2010

This exploratory study investigates the academic leadership roles and responsibilities performed by programme directors in higher education (also known as programme leaders or course leaders). It will be argued there has been a lack of recognition and research into the leadership role for programme directors, attention instead focusing on departmental heads and senior managers. The many challenges facing higher education are discussed, including the need for effective leadership. Failure to recognize, identify and develop the skills involved could be a costly omission for any institution. The study described in this article draws on a number of in-depth informal interviews with academic staff, each encouraged to reflect and ‘tell their story’ regarding their role in providing academic leadership and to explore key themes and critical factors to achieving success and to consider if the perspective on academic leadership at programme director level can be identified. The study identifies themes which suggest that programme directors provide a unique and influential academic leadership role; one that has a significant impact on the quality of student learning and programme innovation. The findings also suggest a programme director’s ability to lead is not derived from positional authority but in their ability to influence by transforming policy into practice. The concept of ‘influence’ represents a recurring theme in both the literature and the findings of the study. The degree to which programme directors have influence is governed by the individual’s personal attributes and the situation within which they operate. The organizational structure that best permits programme directors to develop their leadership potential is one based on shared or distributed leadership.
A collaborative approach to higher education induction
Authors: Ortlieb Evan T. , Biddix J. Patrick , Doepker Gina M.
Published: July 2010

Success in higher education is often measured by one’s ability to conduct research, effectively disseminate findings, and competently teach in a collegiate setting. These measures are not entirely developed during doctoral school, let alone as a classroom teacher. In order to increase the likelihood of success at the higher education level, several newly hired faculty members at a four-year university created the new faculty guild by which they would share scholarly progress, insight into effective teaching strategies, thoughts/ideas of possible research investigations, and solace for one another. Their progressive actions led towards better understandings of the multifaceted tasks related to success in higher education, including mentorship, critical reflection, and collaboration. This article will enlighten prospective and newly hired faculty/faculty about maximizing the benefits and minimizing the limitations of teaching, researching, and fulfilling other service-related duties within higher education.
Enhancement of Discrimination Ability for cis- and trans-Decalins through Side-chain Ordering in Comb-shaped Polymer
Authors: Shundo Atsuomi , Mallik Abul K , Nakashima Hisaki , Takafuji Makoto , Nagaoka Shoji , Chowdhury M A Jamil , Ihara Hirotaka
Published: July 2010

We propose poly(octadecyl acrylate), ODAn as a host polymer for discriminating cis- and trans-decalins. Liquid chromatographic method enabled to detect a thermally induced change in selectivity and enhanced selectivity was achieved at lower temperature, where the side chains in ODAn formed an ordered structure. The thermodynamic analysis for temperature-varied elution behaviors was also described.
Significant Effects of Anion in Aqueous Reactant Solution on Photocatalytic O2 Evolution and Fe(III) Reduction
Authors: Miseki Yugo , Kusama Hitoshi , Sugihara Hideki , Sayama Kazuhiro
Published: July 2010

The apparent quantum yield at 365 nm over TiO2 photocatalyst for O2 evolution and Fe3+ reduction in an aqueous FeCl3–HCl solution was 51%, and more than 15 times higher than in an aqueous Fe2(SO4)3–H2SO4 solution.
Adsorption of Cl− Ion with Pyrolysis Products of Yttrium Oxynitrate Hydrate, Y2(OH)6−x(NO3)x·nH2O
Authors: Kumada Nobuhiro , Kato Go , Yonesaki Yoshinori , Takei Takahiro , Kinomura Nobukazu , Oono Yasuharu
Published: July 2010

We attempted adsorption of Cl− ion in HCl and NaCl solutions with compounds which were prepared by heating yttrium oxynitrate hydrate, Y2(OH)6−x(NO3)x·H2O up to 600 °C. The X-ray powder diffraction patterns of the compounds obtained by heating up to 200 °C was the same as that of Y2(OH)6−x(NO3)x·H2O; however, it changed to YONO3 in the temperature range from 300 to 400 °C and finally changed to Y2O3 above 500 °C. In 0.1 M NaCl solution the starting compound and its pyrolysis products little incorporated Cl− ion. On the contrary, in 0.1 M HCl solution the uptake of Cl− ion increased with the treatment temperature, and the maximum value was 3.1 mequiv g−1 for samples heated above 500 °C.
Formation of Hydroxyapatite Microtubes Assisted with Anatase under Hydrothermal Conditions
Authors: Kamitakahara Masanobu , Murakami Setsuaki , Takahashi Hiroko , Watanabe Noriaki , Ioku Koji
Published: July 2010

Hydroxyapatite (HA) has attracted much attention due to its biocompatibility and adsorption capability. The HA microtubes are highly attractive because they can provide improvement of functionality. It was found that HA microtubes were formed when α-tricalcium phosphate (α-TCP) was hydrothermally treated with addition of anatase. The fact that microtubes did not form under titania-free conditions indicated that titania played important roles to form microtubes.
Plate Anodic Alumina-supported Nickel Catalysts in Steam Reforming of Methane: Effects of Hydrogen Addition, Electrical Heating, and Pt Doping
Authors: Zhou Lu , Guo Yu , Chen Jian , Zhao Wen , Sakurai Makoto , Kameyama Hideo
Published: July 2010

A porous anodic alumina-supported 4.9 wt % nickel catalyst showed deactivation in steam reforming of methane at 700 °C, and this was mainly ascribed to Ni oxidation. The influence of hydrogen additive was examined by adding hydrogen into feed, and no deactivation was found during 20 h when hydrogen with H2/H2O = 1/3 was added. The influence of electrical heating over catalyst stability was also examined, and the results showed a stable 93% methane conversion for 30 h. 0.078 wt % Pt-doped 4.9 wt % nickel catalyst showed a stable SRM reactivity even without the prereduction with hydrogen.
Children's speaking and singing voices are one voice: evidence from perceptual analyses of independent voice parameters
Authors: Rinta Tiija
Published: July 2010

Traditionally, children's speaking and singing voices have been regarded as two separate entities, each being used for a distinct vocal behaviour. Nevertheless, according to the voice-scientific and evolutionary perspectives, children use the same voice for generating all vocal behaviours.
Due to such an evident contradiction, the intension of the study was to investigate whether pre-pubertal children's speaking and singing voices are perceptually connected. Voice recordings were conducted with 76 7- to 10-year-old children. Each child performed a set of speaking and singing
tasks and their vocal output was recorded with high-quality technological equipment. Subsequently, each voice sample was analysed perceptually with the use of a specially designed perceptual voice assessment protocol. The key finding was that the participant children's voice quality and vocal
characteristics correlated statistically significantly between the two vocal behaviours, as evidenced through general voice quality and individual voice parameter analyses. The findings therefore imply that children's speaking and singing voices are perceptually connected. It can be argued,
then, that children possess one voice that is used for generating speaking and singing behaviours.
An expert in absentia: a case study for using technology to support recording studio practice
Authors: King Andrew
Published: July 2010

This article examines the use of a Learning Technology Interface (LTI) to support the completion of a recording workbook with audio examples over a ten-week period. The Virtual Learning Environment (VLE) provided contingent support to studio users for technical problems encountered
in the completion of four recording tasks.Previous research has investigated how students collaborate and problem-solve during a short session in the recording studio using technology as a contingent support tool. In addition, online message boards have been used to record problems encountered
when completing a prescribed task (critical-incident recording).A mixed-methods case study approach was used in this study. The students' interactions within the LTI were logged (i.e. frequency, time, duration and type of support) and their feedback was elicited via a user questionnaire
at the end of the project. Data for this study demonstrate that learning technology can be a successful support tool, and also highlight the frequency and themes concerning the types of recording-practice information accessed by the learners.
Exploring a virtual music community of practice: Informal music learning on the Internet
Authors: Waldron Janice
Published: July 2010

Over the past ten years, online communities of practice have evolved in cyberspace formed around different folk music genres, including Bluegrass, Irish Traditional, and Old Time (OT) music. Using Wenger's (1998) social learning theory as a framework, and informed by Hine's research
in cyber ethnography (2000), the purpose of this article is to explore the informal music teaching and learning practices that characterize the OT music online community as a community of practice (CoP). What defines the OT online community as a CoP? What technologies including software programs
do learners use and how do learners modify these to fit their needs? What practices characterize learning in this online community? Information gleaned from this article will serve a twofold purpose. First, the exploration of music learning in this online CoP will have implications for lifelong
music learning and formal school music education. Second, this study will demonstrate the appropriateness of employing cyber ethnography as a method for conducting online narrative research in music education.
Cell penetrating peptides can exert biological activity: a review
Authors: Brugnano Jamie , Ward Brian C. , Panitch Alyssa
Published: July 2010

Cell penetrating peptides (CPPs) have been successful in delivering cargo into many different cell types and are an important alternative to other methods of permeation that might damage the integrity of the cell membrane. The traditional view of CPPs is that they are inert molecules that can be successfully used to deliver many cargos intracellularly. The goal of this review is to challenge this traditional understanding of CPPs. Recent literature has demonstrated that CPPs themselves can convey biological activity, including the alteration of gene expression and inhibition of protein kinases and proteolytic activity. Further characterization of CPPs is required to determine the extent of this activity. Research into the use of CPPs for intracellular delivery should continue with investigators being aware of these recent results.
A new anticoagulant for blood sampling tubes for platelet function tests1
Authors: Wolf Johanna , Sigl Martin , Giannitsis Evangelos , Ivandic Boris
Published: July 2010

Background: The difficult pre-analytical conditions of platelet function diagnostics discourage its widespread use, e.g., to detect resistance to acetylsalicylic acid (ASA) and/or clopidogrel. Platelet activation during blood drawing and sample preparation cannot be prevented by citrate anticoagulation. Here, we tested a new blood sampling tube containing the anticoagulant benzylsulfonyl-D-Argininyl-Prolyl-4-amidinobenzylamide (Thrombovette®, Probe&go, Germany).

Methods: A total of 46 emergency patients taking ASA and clopidogrel as well as 20 healthy volunteers were included in the study. Blood was drawn into Thrombovette® and citrate S-Monovette® tubes (Sarstedt AG&Co, Germany) and transported to the laboratory via the pneumatic tube system. Whole blood impedance aggregometry (model 560Ca, Chrono-Log, Havertown, PA, USA) was performed using collagen and ADP as platelet agonist (final concentrations 1 mg/L and 5 μM, respectively).

Results: Reference ranges and cut-off values for the determination of drug resistance were obtained from the healthy cohort. Positive predictive values were 94.6% and 94.1% for inhibition of aggregation by ASA, and 68.0% and 53.3% for inhibition by clopidogrel using Thrombovette® and citrate S-Monovette®, respectively. Negative predictive values were 82.8% and 75.0% for ASA resistance and 87.8% and 83.3% for clopidogrel resistance using Thrombovette® and citrate S-Monovette®, respectively.

Conclusions: Thrombovette® is a promising new system for blood sampling and could improve the validity of platelet function diagnostics.
Immunosuppressant drug monitoring – a routine undertaking?1
Authors: Seger Christoph , Vogeser Michael
Published: July 2010

The quantitative assessment of immunosuppressant drug levels is still one of the most challenging therapeutic drug monitoring procedures in clinical routine. During the past years, several technical developments matured to usable methods. In addition to immunoassays, liquid chromatography-tandem mass spectrometry has become a key method in immunosuppressant therapeutic drug monitoring. This overview should aid in understanding the advantages and disadvantages of the various assays and methods. UK-NEQAS proficiency testing results are used for an inter-assay comparison approach.
Die Gesamtzahl sowjetischer Kriegsgefangener - Eine weiterhin ungelöste Frage
Authors: Haritonow Alexander , Müller Klaus-Dieter
Published: July 2010

Vorspann

Die sowjetischen Kriegsgefangenen des Zweiten Weltkriegs sind in der westlichen Welt eine fast schon vergessene Opfergruppe. Dabei wird die Zahl derer, die in deutschem Gewahrsam umgekommen sind, auf etwa drei Millionen Menschen geschätzt. Doch gibt es dafür nur wenige, wirklich valide Angaben. Meist völlig unbekannt ist das, was genau in den einzelnen Lagern geschah. Reinhard Otto, Rolf Keller und Jens Nagel, die mit zentralen Aktenbeständen zu diesem Thema gearbeitet haben, berechneten erstmals präzise Zahlen für die einzelnen Lager. Ihre Ergebnisse stoßen nun auf Kritik.
Rheology of Selected Persian Honeys
Authors: Tavakolipour Hamid , Kalbasi Ashtari Ahmad
Published: July 2010

The rheological properties of two types of Persian honeys (Thyme and Shahjahan) were studied over temperature and water content of 10-30°C and 16.8-17.2%, respectively. At these conditions, they exhibited a Newtonian behavior for shear rate in range of 0-100 and apparent viscosity in range of 6.7 and 150 Pa.s. The activation energy, glass transition temperature and glass viscosity of Thyme and Shahjahan honeys were (104.5 and 109.7 kJ/mol), (225.6 and 228.2K), and (1.68 x 1011 and 1.48 x 1011 Pa.s), respectively. The Williams-Landel-Ferry (WLF) and Arrhenius Models used to check the dependency of viscosity and temperature data. The results showed that Thyme and Shahjahan honeys were fitted with WLF much better than Arrhenius model. However, the viscosity and water content data did not match with exponential model of Zaitoun, and the viscosity decreased with water content due to its plasticizing effect.
Electricity Self-Generation Costs for Industrial Companies in Cameroon
Authors: Thomas Tamo Tatietse , Alexis Kemajou , Salomon Diboma Benjamin
Published: July 2010

Industrial production in developing countries (DC) is frequently perturbed by electric energy supply difficulties. To overcome this problem, generators are used in self-generation of energy, but this leads to an increase of electricity-related expenses. This article assesses the impact of electricity self-generation on Cameroonian industrial companies. The model described in this article is based on data collected through a survey of a representative sample of industrial companies and from numerous previous thematic and statistical studies. The results of our analyses show that expenses related to electricity in industrial companies in Cameroon have increased five times due to electricity rationing and untimely power cuts. The article also suggests some solutions to improve the electricity self-generation capacity of industrial companies.
Role of Non-Steroidal Anti-Inflammatory Drugs in Gynecology
Authors: Livshits Anna , Seidman Daniel S.
Published: July 2010

This review summarizes the current use of non-steroidal anti-inflammatory drugs (NSAIDs) in obstetrics, gynecology and infertility. These medications are commonly used in different fields of reproductive medicine, for pain management after operative procedures and to relieve dysmenorrhea. In addition to their analgesic effect, NSAIDs are helpful in the management of menorrhagia by decreasing menstrual blood loss. NSAIDs alleviate pain associated with medical abortion, assist in undertaking natural cycle in-vitro fertilization by preventing follicular rupture and reducing premature ovulation, and serve as tocolytics in preterm labor. New NSAIDs may have a growing role in management of women's health.
Difficulties in Treatment and Management of Epilepsy and Challenges in New Drug Development
Authors: Wahab Abdul
Published: July 2010

Epilepsy is a serious neurological disorder that affects around 50 million people worldwide. Almost 30% of epileptic patients suffer from pharmacoresistance, which is associated with social isolation, dependent behaviour, low marriage rates, unemployment, psychological issues and reduced quality of life. Currently available antiepileptic drugs have a limited efficacy, and their negative properties limit their use and cause difficulties in patient management. Antiepileptic drugs can provide only symptomatic relief as these drugs suppress seizures but do not have ability to cure epileptogenesis. The long term use of antiepileptic drugs is limited due to their adverse effects, withdrawal symptoms, deleterious interactions with other drugs and economic burden, especially in developing countries. Furthermore, some of the available antiepileptic drugs may even potentiate certain type of seizures. Several in vivo and in vitro animal models have been proposed and many new antiepileptic drugs have been marketed recently, but large numbers of patients are still pharmacoresistant. This review will highlight the difficulties in treatment and management of epilepsy and the limitations of available antiepileptic drugs and animal seizure models.
Protein Kinases as Drug Development Targets for Heart Disease Therapy
Authors: Dhalla Naranjan S. , Müller Alison L.
Published: July 2010

Protein kinases are intimately integrated in different signal transduction pathways for the regulation of cardiac function in both health and disease. Protein kinase A (PKA), Ca2+-calmodulin-dependent protein kinase (CaMK), protein kinase C (PKC), phosphoinositide 3-kinase (PI3K) and mitogen-activated protein kinase (MAPK) are not only involved in the control of subcellular activities for maintaining cardiac function, but also participate in the development of cardiac dysfunction in cardiac hypertrophy, diabetic cardiomyopathy, myocardial infarction, and heart failure. Although all these kinases serve as signal transducing proteins by phosphorylating different sites in cardiomyocytes, some of their effects are cardioprotective whereas others are detrimental. Such opposing effects of each signal transduction pathway seem to depend upon the duration and intensity of stimulus as well as the type of kinase isoform for each kinase. In view of the fact that most of these kinases are activated in heart disease and their inhibition has been shown to improve cardiac function, it is suggested that these kinases form excellent targets for drug development for therapy of heart disease.
Assessing the Impact of Land Use Policy on Urban-Rural Sustainability Using the FoPIA Approach in Yogyakarta, Indonesia
Authors: König Hannes Jochen , Schuler Johannes , Suarma Utia , McNeill Desmond , Imbernon Jacques , Damayanti Frieta , Dalimunthe Syarifah Aini , Uthes Sandra , Sartohadi Junun , Helming Katharina , Morris Jake
Published: July 2010

This paper presents the results of a sustainability impact assessment (SIA) of policy induced land use changes in Yogyakarta, Indonesia. The regional problems include rapid expansions of urban areas, due to high population pressure, and the conversion of paddy fields and forests into settlements. The objective of this study was to assess the impacts of two land use policies on social, economic, and environmental Land Use Functions (LUFs) in Yogyakarta. The following scenarios were developed for the SIA: a forest protection scenario (S1), a paddy field conservation scenario (S2), and a counterfactual (no policy) scenario of ‘Business As Usual’ (BAU). The Framework for Participatory Impact Assessment (FoPIA) was applied to conduct an expert-based impact assessment. For the specification of the regional sustainability context, a set of nine key LUFs and associated indicators were developed, including three social, three economic, and three environmental sustainability criteria. The resulting scenario impacts of the assessment differed considerably, with positive impacts of the S1 and S2 scenarios on seven of nine LUFs, and negative impacts of the BAU scenario on six LUFs. The perception of the FoPIA method by the regional stakeholders was positive. We conclude that this method contributes toward an enhanced regional understanding of policy effects and sustainability, particularly in data-poor environments.
Structure and reactivity in neutral organic electron donors derived from 4-dimethylaminopyridine
Authors: Garnier Jean , Kennedy Alan R , Berlouis Leonard E A , Turner Andrew T , Murphy John A
Published: July 2010

The effects on the redox properties of modifying the molecular skeleton of neutral bis-2-(4-dimethylamino)pyridinylidene electron donors, derived from 4-dimethylaminopyridine (4-DMAP), have been explored, by varying two parameters: (i) the length of a polymethylene chain linking the two pyridine-derived rings and (ii) the nature of the nitrogen substituents on the 4 and 4′ positions of the precursor pyridines. Restricting the bridge length to two methylene units significantly altered the redox profile, while changes in the nitrogen-substituents at the 4 and 4′ positions led to only slight changes in the redox potentials.
Aportación a la flora bentónica de las Islas Baleares. IV. Flora de Ibiza
Authors: Rull Lluch J. , Gómez Garreta A. , Ribera Siguan M. A.
Published: July 2010

En este trabajo se presentan 21 táxones procedentes de diferentes localidades de la isla de Ibiza, 13 de los cuales suponen nuevas citas para el archipiélago balear y los restantes son especies poco conocidas en estas islas. Se destaca Discosporangium mesarthrocarpum (Falkenb.) Hauck, desconocida hasta ahora en las costas mediterráneas españolas y escasamente citada en el resto de este mar.
Nuevas citas de hongos agaricoideos en el sureste de España
Authors: Gea F. J. , Honrubia M. , López-Sánchez E.
Published: July 2010

Se indica la presencia de 29 taxones de hongos agaricoideos que constituyen nuevas citas para el sureste español. Se comentan los caracteres más significativos de los táxones tratados.
Excursión liquenológica en África del Norte. I. Líquenes silicícolas de Marruecos
Authors: Egea J. M. , Rowe J. G.
Published: July 2010

Este trabajo contiene los primeros resultados florísticos de la excursión realizada a algunos puntos representativos de Marruecos. Se citan 110 táxones de líquenes de rocas ácidas, de los cuales 42 son, según nuestros datos, nuevas citas para Marruecos. Se sinonimizan dos táxones: Pertusaria ludovicae R. G. Werner = P. ceuthocarpoides Zahlbr. y Pertusaria rupícola (Fr.) Harm. var. bispora R. G. Werner = Pertusaria gallica B. de Lesd. Para cada uno de ellos se designa un lectótipo.
Nota taxonómica y corológica sobre el Polygonum romanum Jacq. en el Mediterráneo Occidental
Authors: Raffaeli Mauro , Villar Luis
Published: July 2010

[it] Viene Qui proposto un nuovo inquadramento tassonomico di Polygonum romanum Jacq., con il riconoscimento di tre taxa sottospecifici: Polygonum romanum Jacq. subsp. romanum dell' Italia centro-meridionale, P. romanum Jacq. subsp. gallicum (Raffaelli) Raffaelli & Villar, comb. & stat. nov., della Francia meridionale (Linguadoca) e P. romanum Jacq. subsp. balearicum Raffaelli & Villar, subsp. nov., dell' isola di Maiorca (Baleari, Spagna).
El género Halopeplis Ung.-Sternb. (Salicorniaceae) en la Península Ibérica
Authors: Blanché César , Molero Julià
Published: July 2010

Se aportan nuevos datos sobre la anatomía, ciclo biológico, morfología de la semilla, ecología y nomenclatura de Halopeplis amplexicaulis (Vahl) Cesati & al., único representante del género Halopeplis Ung.-Sternb. (Salicorniaceae en la Península Ibérica. Se describe el polen y se estudia el número cromosómico por primera vez en el género.
Algunos táxones interesantes del sureste zamorano
Authors: Giráldez Ximena
Published: July 2010

Se reseñan una serie de especies de interés corológico localizadas en el sureste de la provincia de Zamora. Todos son primeras citas para la provincia; además, son de destacar las localidades de Galium tunetanum Lam., Que constituye la segunda conocida en España y Telephium imperati L. subs p. imperati, que es la más occidental conocida en Europa.
Composición y estructura de los fondos de maërl de Tossa de Mar (Gerona, España)
Authors: Ballesteros Enric
Published: July 2010

A partir de una serie de muestras recogidas en inmersión con escafandra autónoma se establece la composición especifica y la estructura de los fondos de maërl de Tossa de Mar (Gerona). Se analizan las curvas especies/área y diversidad/área y sobre la base de unos parámetros estructurales previamente establecidos (BALLESTEROS, 1986) se evalúa la complejidad del sistema. También se presentan datos sobre irradiancia, temperatura y disponibilidad de nutrientes, como resultado de un ciclo anual.
El género Polygala (Polygalaceae) en el Mediterráneo Occidental
Authors: Paiva Jorge
Published: July 2010

Polygala es un género con cerca de 720 especies (400 americanas, 206 africanas, 32 europeas, 70 asiáticas y 12 australianas ) distribuidas por casi lodo el globo excepto Polinesia, Nueva Zelanda y las regiones polares. Las 24 especies de Polygala confinadas en el Mediterráneo Occidental pertenecen a 3 subgéneros (5 al subgénero Chamaebuxus, 1 al subgénero Brachytropis y 18 al subgénero Polygala). De los datos morfológicos, cariológicos, palinológicos, anatómicos y ontogénicos, se desprende que el subgénero Chamaebuxus resulta más primitivo que el subgénero Polygala y que el subgénero Brachytropis se deriva tal vez del primero de los citados.
Dades sobre la biologia d'espècies ibèrico-baleàriques d'Artemisia L.
Authors: Vallès Xirau Joan
Published: July 2010

[ca] S'estudien diversos aspectes de la biologia de les espècies ib èrico-baleàriques d'Artemisia L., fonamentalment de les seccions Artemisia L. i Seriphidium Besser. La germinació de les cipseles, el tipus de cicle biològic, la biologia de la reproducció i la fenologia són els principals termes tractats.

[fr] On étude des aspects divers de la biologie des espèces ibéro-baléariques du genre Artemisia L., notamment des sections Artemisia L. et Seriphidium Besser. La germination des cypseles, le type du cycle biologique, la biologie de la reproduction et la phénologie sont les principaux points traités.
Sobre Festuca rubra L. subsp. juncea (Hackel) K. Richter en la Península Ibérica
Authors: De la Fuente García Vicenta , Sánchez-Mata Daniel
Published: July 2010

Se confirma la presencia de Festuca rubra L. subsp. juncea (Hackel) K. Richter en la Península Ibérica como un orófito frecuente en la Cordillera Pirenaica. Se añade una descripción de tallada e ilustrada del taxon, la lista de las localidades ibéricas y un mapa de la distribución en Europa basado en los especímenes examinados y en referencias bibliográficas.
Aportación a la flora vascular de São Tomé
Authors: Gabaldá Casado Neus , García Jacas Núria
Published: July 2010

Se relacionan 87 táxones recolectados en la isla de São Tomé en agosto de 1986, señalando aquellos que son endemismos de la isla. Para cada uno de ellos se transcribe la etiqueta y se detalla su presencia o no en e l conocido catálogo de plantas vasculares de São Tomé obra de EXELL & al. (1944).
Citotaxonomia de les espècies nordafricanes de Delphinium L. sect. Delphinium (Ranunculaceae)
Authors: Blanché César , Molero Julià , Simon Joan
Published: July 2010

S'han estudiat els nombres cromosòmics i l'estructura deis cariotipus de 15 poblacions nordafricanes de Delphinium L. sect. Delphinium. Delphinium balansae Boiss. & Reuter, amb cariotipus mes simètric, apareix com a possible ancestre perenne de la resta d’espècies anuals amb cariotipus més asimètric i més curt. Es proposa una reorganització taxonòmica de la secció, d'on es descriu en dues series noves (ser. Macropetala ser. nova i ser. Balansae ser. nova.) i es proposen dues combinacions noves (D. nanum subsp. alboliliaceum and D. nanum subsp. elongatum).
Novedades sobre taxonomía y nomenclatura de híbridos vasculares españoles
Authors: Crespo Manuel B. , Mateo Gonzalo
Published: July 2010

Se revisa la nomenclatura de algunos híbridos vasculares ibéricos, proponiéndose algunas nuevas combinaciones: Centaurea X subdecurrens var. segobricensis, C. X subdecurrens notbosubsp. albuferae, Cistus X hybridus nothosubsp. grandiflorus var. secallianus. C. X ledon var. recognitus, C. X nigricans var. longifolius, C. X nigricans nothosubsp. grosii y Onopordum X humile var. turolensis. Además, se describe una nueva notosubespecie de las montañas de la provincia de Valencia: Sideritis X paui nothosubsp. enguerana (S. hirsuta X S. incana subsp. virgata).
L'efecte de la mida de la inflorescència sobre les visites de pol-linitzadors de Delphinium nelsonii i Aconitum columbianum
Authors: Pleasants John M. , Zimmerman Michael
Published: July 2010

[ca] S'han suggerit do s factors que juguen un paper en la determinació de la mida de la inflorescència a l'interior d'una espècie: la limitació d'energia i la disminució de la recompensa de la pol-linització per a inflorescències llargues. En un esforç per avalua r la significació de la limitació de la pol-linització, hem examinat l'efecte de la mida de la inflorescència sobre els models de visita dels pol-linitzadors per a dues espècies, Aconitum columbiamun i Delphinium nelsonii. Aquestes espècies tenen una biologia de la pol-linització similar i amb dues presenten una inflorescència racemosa, però difereixen notablement en la mida de llurs inflorescències (A. columbianum té 1-26 flors obertes, mentre que D. Nelsonii només en té 1-6). Per a cada espècie, s'han examinat els paràmetres següents, com a funció de la mida de la inflorescència: visites pe r inflorescència, flors visitades per visita i visites per flor. Per a D. nelsonii, tots tres paràmetres augmenten quan augmenta la mida de la inflorescència, tot i que per a inflorescències llargues, la taxa d'increment se suavitza un xic pel que fa a flors pe r visita i visites per flor. Per a A. columbianum. tots tres paràmetres també augmenten generalment quan augmenta la mida de la inflorescència. però, per a les mides més grans, ja no hi ha més increment en visites per inflorescència o flors per visita. i s'observa una disminució en visites per flor. El model d'un menor increment en l’atractivitat amb inflorescències progressivament més grans correspon al que hom esperaria si l'atractivitat de la inflorescència fos basada en el concepte de diferència exactament perceptible . El model observat, d'un menor increment en flors per visita a mesura que augmenta la mida de la inflorescència, pot ser descrit adequadament per mitjà d'un model en el que hi ha, per regla general, una probabilitat fixada d'abandonar una flor per anar a una altra de la mateixa inflorescència. El nombre de visites per flor és simplement la conseqüència dels altres dos paràmetres. L'absència de cap disminució significativa en les visites de pol-linitzadors a mesura que augmenta la mida de la inflorescència de D. nelsonii suggereix que l'energia és probablement el factor limitant de la mida de la inflorescència. Per a A. columbianum. les inflorescències més llargues tenen un nombre reduït de visites per flor i el nombre total de visites per inflorescència, per a les inflorescències més extremadament llargues, es veu reduït. Això, conjuntament amb la possible reducció de la qualitat de les visites a les inflorescències més llargues, fa més gran la possibilitat que la mida de la inflorescència en Aconitum columbianum pugui ser limitada per la pol-linització.
Revisió taxonòmica i ecològica dels Delphinium de Califòrnia
Authors: Warnock Michael J.
Published: July 2010

[ca] A l'interior dels límits de Califòrnia es troben la totalitat o parts de les àrees de bona part dels Delphinium nadius de Nordamèrica. Es reconeixen 28 espècies de Delphinium a Califòrnia; ultra llurs respectives subspècies nominals, es reconeixen 17 altres subspècies. Es presenten un a clau i les descripcions corresponents als tàxons presents a Califòrnia. Juntament amb les descripcions, s'hi inclouen comentaris sobre la distribució, preferències d'hàbitat, propensió per a ta hibridació i abundància de cada tàxon. Alguns híbrids que es poden trobar (sovint com a resultat de pertorbacions causades per l'home) són separats a les claus.
Investigació biomorfològica comparativa dels gèneres Consolida (DC.) S.F. Gray i Aconitella Spach en relació amb llur taxonomia i filogènia
Authors: Trifinova V. I.
Published: July 2010

[ca] Les relacions filogenètiques a l'interior del gènere Consolida i entre els gèneres Consolida i Aconitella han estat posades de manifest com a resultat de la comparació de dades anatòmiques, cariològiques i morfològiques. Aquesta investigació ha confirmat la correcció de Ja divisió intragenèrica del gènere Consolida, proposada per E. Huth (1895), per a tres de les cinc seccions que creixen al territori de la U.R.S.S. El rang taxonòmic ha estat especificat per al grup més mòdem i evolutivament avançat d'espècies del gènere Aconitella. que és considerat per molts autors a l'interior dels límits del gènere Consolida. La posició taxonòmica d'Aconitella barbata (Bunge) Sojék, les característiques morfològiques de la qual són intermèdies entre els gèneres Aconitella i Consolida, ha estat precisada exactament. Les tendències evolutives principals de la tribu Delphineae han estat identificades: a partir del gènere mesofitic completament perenne Aconitum, que és el més primitiu en els aspectes anatòmics, cariològics imorfològics, a través d'una sèrie de formes desconegudes, cap al gènere Delphinium; i també, a partir dels representants anuals de la secció Delphinium del subgènere Delphinium, cap als gèneres Consolida i Aconitella.
-Thalassemia Mutations among Transfusion-Dependent Thalassemia Major Patients in Northern Iraq
Authors: Al-Allawi Nasir A. S. , Hassan Kawa M. A. , Sheikha Anwar K. , Nerweiy Farida F. , Dawood Raji S. , Jubrael Jaladet
Published: July 2010

Molecular defects responsible for -thalassemias (thal) were investigated among 254 chromosomes from 127 transfusion-dependent unrelated thalassemic patients from two provinces in Northern Iraq. Among fourteen identified mutations, the seven most common found in 88.2% of the thal chromosomes were: IVS-II-1 (), IVS-I-1 (), codon 8 (), codon 39 (), codon 8/9 (), codon 44 (), and codon 5 (). There were some notable differences in frequencies of various mutations in comparison to other Eastern Mediterranean populations, as well as between the two provinces studied. The latter illustrates the relative heterogeneity of the mutations distribution in Iraq, and the need to screen other areas of the country, to ensure establishing an effective prenatal program.
Malignant Phyllodes Tumour with Liposarcomatous Differentiation, Invasive Tubular Carcinoma, and Ductal and Lobular Carcinoma In Situ: Case Report and Review of the Literature
Authors: Abdul Aziz Mardiana , Sullivan Frank , Kerin Michael J. , Callagy Grace
Published: July 2010

A 43-year-old woman presented with a right breast lump that had enlarged over 5 months. She had chemoradiotherapy for non-Hodgkin’s lymphoma in 1989. Histology revealed a malignant phyllodes tumour (PT) with liposarcomatous differentiation and ductal carcinoma in situ (DCIS) within the tumour with invasive tubular carcinoma, DCIS, and lobular carcinoma in situ in the surrounding breast. She had surgery and adjuvant radiotherapy. One year follow-up showed no recurrence or metastatic disease. Liposarcomatous differentiation is uncommon in PTs, and coexisting carcinoma is rare with 38 cases in 31 reports in the literature. Carcinoma is reported in malignant (), benign () and in borderline PTs () with invasive carcinoma () and pure in situ carcinoma () recorded in equal frequency. Carcinoma is more commonly found within the confines of benign PTs; whereas it is more often found surrounding the PT or in the contralateral breast in malignant PTs. Previous radiotherapy treatment is reported in only two cases. The aetiology of co-existing carcinoma is unclear but the rarity of previous radiotherapy treatment suggests that it is incidental. This case highlights the diverse pathology that can occur with PTs, which should be considered when evaluating pathology specimens as they may impact on patient management.
A scriptural, theological and historical analysis of the concept of the Zambian Christian nationhood
Authors: Muwowo Simon , Buitendag Johan
Published: July 2010

The article contributes to an understanding of the notion of Zambian Christian nationhood, which was first officially expressed in a presidential decree. The declaration of Zambia as a Christian nation was made by Fredrick Chiluba, the second President of the Republic of Zambia, on 29 December 1991. In June 1996, an amendment to the Constitution of Zambia Act of 1991, which included the Zambian Christian nation declaration, was effected, from which moment Zambia officially became regarded as a ‘Christian nation’. The current article proposes that a country cannot attain its Christian nationhood by presidential decree, but only by means of cultural determination. However, an extensive evaluation of the culture concerned is needed in order for the task to be theologically feasible. To achieve a comprehensive analysis of the current situation, the article takes into consideration some of the historical paradigms and models of regions which were once Christian, but which have since failed to stand by such principles. The point of the present argument is that religion emanates from the culture of the people and not from a declaration that is made about them. The article also takes into consideration Niebuhr’s fivefold typology of models of the relationship of Christ with culture, to which this article refers as that existing between church and state. The ultimate conclusion is that the declaration of Zambia as a ‘Christian nation’, despite being a unique concept, must be both theologically and ethically sound if, indeed, it is to become more than just a slogan and a single-line entry in the preamble of the country’s constitution.
Can the chasms be bridged? Different approaches to Bible reading
Authors: Malan Gert J.
Published: July 2010

Reality confronts theologians with the fact that they themselves and believers across the world read and interpret the Bible in diverse ways. Understanding the reason for this is part of the solution. The essence of the problem is that the quest for meaning is an unending journey with frequent ravines to cross. Invariably, a linguistic, historical, cultural and social chasm opens up between current readers of Biblical texts and the cultural, as well as historically layered, settings in which the documents originated. This review article is a discussion of the ways in which several authors approach the Bible from their different theological vantage points and from different fields of application. It assesses the way in which they understand this problem and how they see a solution. An assessment is made from the historical-literary and social-scientific approach to biblical texts, as practiced in the Netherdutch Reformed Church in Africa. Solutions suggested and applied in this situation are compared to solutions proposed by various authors. There may be a positive outcome: the chasms might be bridged, but only when certain criteria are met and when all parties concerned are willing to work with patience, trust and fearless diligence.
The Arabian Sea as a high-nutrient, low-chlorophyll region during the late Southwest Monsoon
Authors: Naqvi S. W. A. , Moffett J. W. , Gauns M. U. , Narvekar P. V. , Pratihary A. K. , Naik H. , Shenoy D. M. , Jayakumar D. A. , Goepfert T. J. , Patra P. K. , Al-Azri A. , Ahmed S. I.
Published: July 2010

Abstract. Extensive observations were made during the late Southwest Monsoon of 2004 over the Indian and Omani shelves, and along a transect that extended from the southern coast of Oman to the central west coast of India, tracking the southern leg of the US JGOFS expedition (1994–1995) in the west. The data are used, in conjunction with satellite-derived data, to investigate long-term trends in chlorophyll and sea surface temperature, indicators of upwelling intensity, and to understand factors that control primary production (PP) in the Arabian Sea, focussing on the role of iron. Our results do not support an intensification of upwelling in the western Arabian Sea, reported to have been caused by the decline in the winter/spring Eurasian snow cover since 1997. We also noticed, for the first time, an unexpected development of high-nutrient, low-chlorophyll condition off the southern Omani coast. This feature, coupled with other characteristics of the system, such as a narrow shelf and relatively low iron concentrations in surface waters, suggest a close similarity between the Omani upwelling system and the Peruvian and California upwelling systems, where PP is limited by iron. Iron limitation of PP may complicate simple relationship between upwelling and PP assumed by previous workers, and contribute to the anomalous offshore occurrence of the most severe oxygen (O2) depletion in the region. Over the much wider Indian shelf, which experiences large-scale bottom water O2-depletion in summer, adequate iron supply from reducing bottom-waters and sediments seems to support moderately high PP; however, such production is restricted to the thin, oxygenated surface layer, probably because of the unsuitability of the O2-depleted environment for the growth of oxygenic photosynthesizers.
Vegetation response to upstream water yield in the Heihe river by time series analysis of MODIS data
Authors: Jia L. , Shang H. , Menenti M.
Published: July 2010

Abstract. Liquid and solid precipitation is abundant in the high elevation, upper reach of the Heihe basin. The development of modern irrigation schemes in the middle reach of the basin is taking up an increasing share of fresh water resources, endangering the oasis and traditional irrigation systems in the lower reach. In this study, the response of vegetation in the Ejina Oasis in the lower reach of the Heihe River to the water yield of the upper catchment was analyzed by time series analysis of monthly observations of precipitation in the upper and lower catchment, river streamflow downstream of the modern irrigation schemes and satellite observations of vegetation index. Firstly, remote sensing data were used to monitor the vegetation dynamic for a long time period. Due to cloud-contamination, atmospheric influence and different solar angles, however, the quality and consistence of time series of remote sensing data is degraded. In this research we used a Fourier Transform method – the Harmonic Analysis of Time Series (HANTS) algorithm – to reconstruct cloud-free NDVI time series data from the Terra-MODIS dataset. Anomalies in precipitation, streamflow, and vegetation index are detected by comparing each year with the average year. The relationship between the anomalies in vegetation growth, the local precipitation and upstream water yield were analyzed. The same approach is used to identify, remove and gap-filling cloud contaminated observations in the satellite data for each year in the dataset. The results showed that: the previous year total runoff had a significant relationship with the vegetation growth in Ejina Oasis and that anomalies in monthly runoff of the Heihe River influenced the phenology of vegetation in the entire oasis during drier years. The time of maximum green-up was uniform throughout the oasis during wetter years, but showed a clear S–N gradient (downstream) during drier years.
Retroflection from a double slanted coastline – a model for the Agulhas leakage variability
Authors: Zharkov V. , Nof D. , Weijer W.
Published: July 2010

Abstract. The Agulhas leakage to the South Atlantic (SA) exhibits strong anti-correlations with the mass flux of the Agulhas Current. This is accompanied by the migration of the Agulhas retroflection whose normal position (NPR) is near Cape Agulhas, where the slant of the South African coast is very small. During periods of strong incoming flux (SIF), the retroflection shifts upstream to Port Elizabeth or East London, where the coastline shape has a "kink", i.e., the slant changes abruptly from small on the west side, to large (about 55°) on the east side. Here, we show that the variability of rings shedding maybe attributed to this kink. To do so, we develop a nonlinear analytical model for retroflection near a coastline that consists of two sections, one strongly slanted (corresponding to the east side) and the other zonal (corresponding to the west side). The principal difference between this and the model of a single straight slanted coast discussed in our earlier papers is that a free purely westward propagation of eddies along the zonal coastline section is allowed in the kinked case. This introduces the interesting situation where the strong slant of the coast east of the kink prohibits the formation and shedding of rings whereas the coast west of the kink encourages such shedding. Therefore, the kink model "locks" the position of the retroflection forcing it to occur just downstream of the kink. That is, rings are necessarily shed from the retroflection area in our kinked model, regardless of the eastern coast slant. By contrast, the application of "no-kink" model for an "averaged" slant (at the same point as the kink) leads to the conclusion that shedding is almost completely arrested by the slant. We suggest that the difference between the intensities of rings shedding during NPR and SIF is due to the shift in the zero curl line in respect to the kink. When the zero curl intersects the coast north of the kink the transport is small but it is large when the zero curl is situated south of the kink. Simple process-oriented numerical simulations are in fair agreement with our results.
ChemInform Abstract: CO Interaction with Alkali Metal Cations in Zeolites: A Density Functional Model Cluster Study.
Authors: FERRARI A. M. , NEYMAN K. M. , ROESCH N.
Published: July 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: 7Li and 6Li Solid‐State NMR Studies of Structure and Dynamics in LiNbO3—WO3 Solid Solutions.
Authors: XIA Y. , MACHIDA N. , WU X. , LAKEMAN C. , VAN WUELLEN L. , LANGE F. , LEVI C. , ECKERT H. , ANDERSON S.
Published: July 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.