bluuebunny/crossref_metadata_2025 huggingface dataset:
Personal Factors in the International Classification of Functioning, Disability and Health: Prospective Evidence
Authors: Grotkamp Sabine L. , Cibis Wolfgang M. , Nüchtern Elisabeth A.M. , von Mittelstaedt Gert , Seger Wolfgang K.F.
Published: July 2012

The goal of this study was to propose a systematic classification of relevant personal factors for describing the background of an individual's life and way of living. The German Society of Social Medicine and Prevention constituted an ICF working group consisting of members from Medical Advisory Boards of Statutory Health Insurances (n = 6) and other institutions (n = 12) in 2009. A two-tier consensus building approach was utilised to construct and document the personal factors, with an initial team of experts compiling the personal factors and a second group of experts, who had not participated in developing the initial proposal, validating the process. The consensus process resulted in personal factors classified into 72 categories and arranged in six chapters as follows: general factors normally unchangeable (chapter 1); a person's inherent physical and mental constitution (chapters 2 and 3); more modifiable factors, such as attitudes, basic skills and behaviour patterns (chapter 4); life situation and socioeconomic/sociocultural factors (chapter 5); and other health factors e.g., prior interventions (chapter 6). We believe the personal factors from this effort to be a good basis for a wider global dialogue on their operationalisation.
Counselling Support for People with Intellectual Disabilities: The Use of Narrative Therapy
Authors: Wark Stuart
Published: July 2012

This article uses a descriptive case study design to examine the potential of narrative therapy as a direct intervention for adults with moderate-to-severe intellectual disabilities, autism and/or severe communication limitations. Archival clinical data on four individuals who received a form of social constructionist narrative therapy are examined for goal attainment. The data were analysed qualitatively with specific input from individuals, their families and carers. Findings indicate improvements in quality of life through reductions in situational and environmental anxieties, and in coping with grief and loss. The results suggest that narrative therapy techniques can be beneficial in assisting individuals with severe intellectual disability to achieve meaningful and persistent improvements in their life.
Korean American Parents of Children with Developmental Disabilities Reveal Their Experiences Communicating with European American Rehabilitation Counsellors
Authors: Park Sungho , Brodwin Martin
Published: July 2012

This study explored the consumer-reported communication patterns between rehabilitation professionals and ethnically diverse clients who are parents of children with developmental disabilities. Informants were Korean American mothers (n= 10) of children with developmental disabilities (n= 10) who were receiving services from a community rehabilitation agency. Interview data were collected and thematically analysed. The findings suggest that Korean American mothers were not likely to openly discuss possible options for their children with their rehabilitation counsellor. About 60% of participants stated that they worked with at least one counsellor whose communication they felt was ineffective. The findings of this study are congruent with the previous research findings that Koreans emphasize e harmonious relationships. Multicultural competences are important for counsellors with culturally and linguistically diverse clients.
Fatigue and Anger in People With Spinal Cord Injury
Authors: Wijesuriya Nirupama , Craig Ashley , Tran Yvonne , Middleton James
Published: July 2012

This study investigated fatigue and anger in people with SCI. Participants were 27 adults with SCI living in the community (males = 26, females = 1; mean age = 50 years, SD = 9.47 years) and a comparison group of 27 other adults without SCI. Data about their experience of fatigue and anger were collected using the Chalder Fatigue Scale and the Profile of Mood States. Kruskal-Wallis ANOVA by ranks and chi-square analyses were used to determine whether the SCI participants had elevated levels of fatigue and anger than the typical or noninjured community group. Persons with SCI reported significantly elevated fatigue and elevated levels of anger than typical others. These findings are discussed with reference to adjustment following SCI, and interpreted in light of the Stress Appraisal and Coping Model (SAC) of adjustment following SCI.
A rare case of spontaneous thyroid cyst haemorrhage
Authors: Chan C C , Awobem A , Binns C , Jassar P
Published: July 2012

Background:

We report a case of hypopharyngeal swelling secondary to a spontaneous thyroid cyst haemorrhage. Haemorrhage is a known complication of thyroid cysts, and usually presents as external swelling and localised pain.

Case report:

A 93-year-old woman developed hypopharyngeal swelling, dysphagia and odynophagia. A computed tomography scan was consistent with thyroid cyst haemorrhage. The patient was treated with needle aspiration and intravenous steroid injections, with full recovery at thyroid clinic review.

Conclusion:

To our best knowledge, there has been no previous report of a hypopharyngeal swelling occurring secondary to spontaneous thyroid cyst haemorrhage. Our case is unusual because of the risk of airway compromise at the level of the hypopharynx, secondary to thyroid cyst haemorrhage.
Decentralising the Active Welfare State: The Relevance of Intergovernmental Structures in Italy and Spain
Authors: LÓPEZ-SANTANA MARIELY , MOYER ROSSELLA
Published: July 2012

This article contributes to the literatures on the governance of activation and the territorial structure of the welfare state by drawing attention to the institutional designs of active welfare states and the architectures of decentralisation, as well as to their manifestations and implications. With the end of capturing dissimilar intergovernmental models of activation, this paper develops a framework of ‘centre–regional’ relations, which we apply to the cases of Italy and Spain – two countries that have devolved active labour market policy powers to their regions but have organised power-sharing structures very differently. The findings suggest that when it comes to active welfare states, horizontal arrangements are linked to salient institutional variations across the territory. By contrast, hierarchical structures, which are characterised by a dominant role of central level governments, are linked to higher levels of cohesion. These findings are relevant as they expose the manifestations and implications of distinct decentralisation models on activation regimes, welfare states, as well as on welfare clients.
Development of fear and guilt in young children: Stability over time and relations with psychopathology
Authors: Baker Erika , Baibazarova Eugenia , Ktistaki Georgia , Shelton Katherine H. , van Goozen Stephanie H. M.
Published: July 2012

Extremes in fearful temperament have long been associated with later psychopathology and risk pathways. Whereas fearful children are inhibited and anxious and avoid novel events, fearless individuals are disinhibited and more likely to engage in aggressive behavior. However, very few studies have examined fear in infants from a multimethod and prospective longitudinal perspective. This study had the following objectives: to examine behavioral, maternal reported, and physiological indices of fearful temperament in infancy, together with their relations and stability over time; and to establish whether early indices of fear predict fear later in toddlerhood. We also examined the association between behavioral and physiological measures of fear and guilt and whether fear in infancy predicts guilt in toddlers. Finally, we investigated infant risk factors for later psychopathology. We recorded skin conductance level (SCL) and heart rate (HR) and observed children's responses during a Laboratory Temperament Assessment Battery fear paradigm across the first 3 years of life and during a guilt induction procedure at age 3 (N= 70). The results indicate that different measures of infant fear were associated across time. Observed fearlessness in infancy predicted observed fearlessness and low levels of SCL arousal to fear and guilt in toddlers. Low levels of HR and SCL to fear in infancy predicted low levels of physiological arousal to the same situation and to guilt 2 years later. Fear and guilt were significantly associated across measures. Finally, toddlers with clinically significant internalizing problems at age 3 were already notably more fearful in Year 1 as reflected by their significantly higher HR levels. The results indicated that assessments of children in infancy are predictive of how these children react 2 years later and therefore lend support to the idea that the emotional thermostat is set in the first 3 years of life. They also showed, for the first time, that infant fear is a predictor of guilt, which is an emotion that develops later. The implications of these findings for our understanding of developmental psychopathology are discussed.
Soluble carbohydrates in legume seeds
Authors: Obendorf Ralph L. , Górecki Ryszard J.
Published: July 2012

Mature dry legume seeds may contain up to 30 different soluble carbohydrates. Sucrose is a major component of the total soluble carbohydrates; others include the raffinose family oligosaccharides (RFOs; raffinose, stachyose, verbascose) that are mono-, di- and tri-α-galactosyl derivatives of sucrose. Other galactosides may include α-galactosyl derivatives of the cyclitolsmyo-inositol (galactinol, digalactosylmyo-inositol and trigalactosylmyo-inositol),d-pinitol (galactopinitol A, digalactosyl pinitol A (ciceritol) and trigalactosyl pinitol A; and galactopinitol B; higher galactosyl oligomers of galactopintiol B have rarely been detected),d-chiro-inositol (fagopyritol B1, fagopyritol B2 and fagopyritol B3) andd-ononitol (galactosyld-ononitol and digalactosyld-ononitol). Small amounts ofmyo-inositol,d-pinitol andd-chiro-inositol may also be present. Raffinose, stachyose and verbascose increase late in seed maturation, with 70% of RFOs accumulating after maximum seed dry weight is attained. RFOs are mostly degraded during germination. Sucrose,myo-inositol,d-pinitol andd-chiro-inositol are synthesized in maternal tissues of some legumes and are transported to and unloaded by seed coats into the apoplastic space surrounding developing seed embryos. Free cyclitols may be 60% of total soluble carbohydrates in leaves and 20% in seed coat cup exudates. Increasing the supply of free cyclitols may increase the accumulation of their respective α-galactosides in mature seeds. Seeds with reduced RFO accumulation, but with normal to elevated concentrations of galactosyl cyclitols (including fagopyritols), have normal field emergence and are also tolerant to imbibitional chilling under laboratory conditions. Molecular structures, biosynthetic pathways, accumulation of soluble carbohydrates in response to seed-expressed mutations and the physiological role of galactosides are reviewed.
Clinical characteristics and causes of chest pain in 380 children referred to a paediatric cardiology unit
Authors: Sert Ahmet , Aypar Ebru , Odabas Dursun , Gokcen Cem
Published: July 2012

Background

Chest pain is a common presenting complaint to paediatrics, paediatric cardiology, and paediatric emergency departments. In this study, we prospectively evaluated clinical characteristics and causes of chest pain in children referred to our paediatric cardiology unit.

Methods

A total of 380 children were included. Associated symptoms and past and family histories were evaluated. All patients underwent physical examination. The following studies were performed: complete blood count in all patients; fasting lipid profiles in overweight and obese children and children with a family history of premature cardiovascular disease; and electrocardiogram, chest X-ray, and echocardiogram in all patients. If necessary, 24-hour electrocardiogram monitoring or exercise stress tests were performed. Patients with a history of positive psychological findings were evaluated by a child psychiatrist.

Results

The most common causes of chest pain were musculoskeletal disorders (37.1%), idiopathic chest pain (29.2%), and miscellaneous disorders, for example precordial catch syndrome (15%), respectively. Only 1 of 380 (0.3%) patients had chest pain due to a cardiac disorder. Electrocardiograms were abnormal in 4 of 380 (1.1%) patients. A total of 9 of 380 patients (2.3%) had dyslipidaemia.

Conclusions

Although a paediatric cardiology referral may provide reassurance to the primary care and emergency department physicians, our results show that cardiac aetiologies for paediatric chest pain are very rare. We think that many patients in our study were adequately evaluated only by careful history, and physical examination. Therefore, we suggest that it may not be necessary to use echocardiogram in the routine evaluation of children with chest pain.
EMS Response to an Airliner Crash
Authors: Dasgupta Shuvra , French Simone , Williams-Johnson Jean , Hutson Rhonda , Hart Nicole , Wong Mark , Williams Eric , Espinosa Kurdell , Maycock Celeste , Edwards Romayne , McCartney Trevor , Cawich Shamir , Crandon Ivor
Published: July 2012

This report of an aircraft crash at a major airport in Kingston, Jamaica examines the response of the local Emergency Medical Services (EMS). Factors that impacted the response are discussed, and the need for more disaster simulation exercises is highlighted. The objective of this case report was to document the response of EMS personnel to the crash of American Airlines Flight 331, and to utilize the information to examine and improve the present protocol.

While multiple errors can occur during a mass-casualty event, these can be reduced by frequent simulation exercises during which various personnel practice and learn designated roles. Efficient triage, proper communication, and knowledge of the roles are important in ensuring the best possible outcome. While the triage system and response of the EMS personnel were effective for this magnitude of catastrophe, more work is needed in order to meet predetermined standards. Ways in which this can be overcome include: (1) hosting more disaster simulation exercises; (2) encouraging more involvement with first responders; and (3) strengthening the links in the local EMS system. Vigorous public education must be instituted and maintained.

Dasgupta S, French S, Williams-Johnson J, Hutson R, Hart N, Wong M, Williams E, Espinosa K, Maycock C, Edwards R, McCartney T, Cawich S, Crandon I. EMS response to an airliner crash.Prehosp Disaster Med.2012;27(3):1-4.
WRONGDOING BY RESULTS: MOORE'S EXPERIENTIAL ARGUMENT
Authors: Gardner John
Published: July 2012

Michael Moore and I agree about the moral importance of how our actions turn out. We even agree about some of the arguments that establish that moral importance. In Causation and Responsibility, however, Moore foregrounds one argument that I do not find persuasive or even helpful. In fact I doubt whether it even qualifies as an argument. He calls it the “experiential argument.” In this comment I attempt to analyze Moore's “experiential argument” in some detail and thereby to bring out why it does not help. In the process I raise some problems about the rationality of the emotions, which may be where Moore and I part company. We both believe that emotions should be taken more seriously by moral philosophy. But apparently we have radically different views about what this means.
Food insecurity and household eating patterns among vulnerable American-Indian families: associations with caregiver and food consumption characteristics
Authors: Mullany Britta , Neault Nicole , Tsingine Danielle , Powers Julia , Lovato Ventura , Clitso Lena , Massey Sheree , Talgo Adrienne , Speakman Kristen , Barlow Allison
Published: July 2012

Objective

To identify factors associated with food insecurity and household eating patterns among American-Indian families with young children.

Design

Cross-sectional survey among households with young children that were receiving emergency food services. We collected information on food insecurity levels, household eating patterns, experiences with commercial and community food sources and demographics, and used multivariate regression techniques to examine associations among these variables.

Setting

Four Southwestern American-Indian reservation communities.

Subjects

A total of 425 parents/caregivers of young children completed the survey.

Results

Twenty-nine per cent of children and 45 % of adults from households participating in the survey were classified as ‘food insecure’. Larger household size was associated with increased food insecurity and worse eating patterns. Older respondents were more likely than younger respondents to have children with food insecurity (relative risk = 2·19,P< 0·001) and less likely to have healthy foods available at home (relative risk = 0·45,P< 0·01). Consumption of food from food banks, gas station/convenience stores or fast-food restaurants was not associated with food insecurity levels. Respondents with transportation barriers were 1·46 times more likely to be adult food insecure than respondents without transportation barriers (P< 0·001). High food costs were significantly associated with greater likelihoods of adult (relative risk = 1·47,P< 0·001) and child (relative risk = 1·65,P< 0·001) food insecurity.

Conclusions

Interventions for American-Indian communities must address challenges such as expense and limited transportation to accessing healthy food. Results indicate a need for services targeted to older caregivers and larger households. Implications for innovative approaches to promoting nutrition among American-Indian communities, including mobile groceries and community gardening programmes, are discussed.
Exploring dietary patterns, obesity and sources of bias: the Västerbotten Intervention Programme (VIP)
Authors: Nyholm Maria , Lissner Lauren , Hörnell Agneta , Johansson Ingegerd , Hallmans Göran , Weinehall Lars , Winkvist Anna
Published: July 2012

Objective

Dietary patterns capture the overall diet and thereby provide information on how nutrients are consumed in combinations, and have been suggested to be a better method than studying single nutrients. The present study explored the relationship between dietary patterns at baseline and incidence of obesity at 10-year follow-up in women.

Design

A longitudinal study using baseline measurements from 1992–1996, including food intake, medication, heredity, socio-economic status, lifestyle and measured body composition, and follow-up data collected in 2002–2006 including measured body composition.

Setting

Data from the Västerbotten Intervention Programme (VIP) in Sweden.

Subjects

A total of 6545 initially non-obese women aged 30–50 years.

Results

Among women reporting plausible energy intakes, the ‘Fruit and vegetables cluster’ predicted the highest incidence of obesity (OR = 1·76, 95 % CI 1·11, 2·76; P = 0·015) compared with women in the other food pattern groups combined. When adjusting for metabolic factors and BMI at baseline, the risk for obesity in the ‘Fruit and vegetables cluster’ was attenuated to non-significance. In contrast, high intake of fruit per se was associated with a decreased risk of developing obesity (OR = 0·69, 95 % CI 0·51, 0·91; P = 0·010).

Conclusions

Dietary pattern groups identified by cluster analysis are likely to reflect characteristics in addition to diet, including lifestyle, previous and current health status and risk factors for future disease, whereas intake of fruit per se was a stable indicator and less affected by baseline characteristics. These results underscore the need for complementary methods in understanding diet–disease relationships.
Commensal microbiome effects on mucosal immune system development in the ruminant gastrointestinal tract
Authors: Taschuk Ryan , Griebel Philip J
Published: July 2012

Commensal microflora play many roles within the mammalian gastrointestinal tract (GIT) that benefit host physiology by way of direct or indirect interactions with mucosal surfaces. Commensal flora comprises members across all microbial phyla, although predominantly bacterial, with population dynamics varying with host species, genotype, and environmental factors. Little is known, however, about the complex mechanisms regulating host–commensal interactions that underlie this mutually beneficial relationship and how alterations in the microbiome may influence host development and susceptibility to infection. Research into the gut microbiome has intensified as it becomes increasingly evident that symbiont–host interactions have a significant impact on mucosal immunity and health. Furthermore, evidence that microbial populations vary significantly throughout the GIT suggest that regional differences in the microbiome may also influence immune function within distinct compartments of the GIT. Postpartum colonization of the GIT has been shown to have a direct effect on mucosal immune system development, but information is limited regarding regional effects of the microbiome on the development, activation, and maturation of the mucosal immune system. This review discusses factors influencing the colonization and establishment of the microbiome throughout the GIT of newborn calves and the evidence that regional differences in the microbiome influence mucosal immune system development and maturation. The implications of this complex interaction are also discussed in terms of possible effects on responses to enteric pathogens and vaccines.
The Family and Business Life of Harriet Hubbard Ayer, Culminating in Fights over Her Person and Property
Authors: Gustafson Melanie
Published: July 2012

This article examines the rise and fall of the Recamier Manufacturing Company, a cosmetics and patent medicine firm established in New York City by Harriet Hubbard Ayer in 1886. Ayer invested in an extensive advertising campaign where she fashioned herself as a tragic figure forced into the business world. When faced with challenges to her “person and property,” she relied on a network of business and professional allies to protect her interests. An examination of Ayer's business career reveals how consumers responded to an emerging cultural attitude that experts of all types should play a role in the development of beautiful faces and strong bodies. The narrative of her life reveals, among other things, the pervasiveness of the idea of a woman's respectability during the Gilded Age.
Cycles and cycle modulations
Authors: Brandenburg Axel , Guerrero Gustavo
Published: July 2012

Some selected concepts of the solar activity cycle are reviewed. Cycle modulations through a stochastic α effect are being identified with limited scale separation ratios. Three-dimensional turbulence simulations with helicity and shear are compared at two different scale separation ratios. In both cases the level of fluctuations shows relatively little variation with the dynamo cycle. Prospects for a shallow origin of sunspots are discussed in terms of the negative effective magnetic pressure instability. Tilt angles of bipolar active regions are discussed as a consequence of shear rather than the Coriolis force.
Magnetic helicity fluxes and their effect on stellar dynamos
Authors: Candelaresi Simon , Brandenburg Axel
Published: July 2012

Magnetic helicity fluxes in turbulently driven α2 dynamos are studied to demonstrate their ability to alleviate catastrophic quenching. A one-dimensional mean-field formalism is used to achieve magnetic Reynolds numbers of the order of 105. We study both diffusive magnetic helicity fluxes through the mid-plane as well as those resulting from the recently proposed alternate dynamic quenching formalism. By adding shear we make a parameter scan for the critical values of the shear and forcing parameters for which dynamo action occurs. For this αΩ dynamo we find that the preferred mode is antisymmetric about the mid-plane. This is also verified in 3-D direct numerical simulations.
Spontaneous chiral symmetry breaking in the Tayler instability
Authors: Del Sordo Fabio , Bonanno Alfio , Brandenburg Axel , Mitra Dhrubaditya
Published: July 2012

The chiral symmetry breaking properties of the Tayler instability are discussed. Effective amplitude equations are determined in one case. This model has three free parameters that are determined numerically. Comparison with chiral symmetry breaking in biochemistry is made.
The Ni I lines in the solar spectrum
Authors: Vieytes Mariela C. , Mauas Pablo J. D. , Fontenla Juan M.
Published: July 2012

The stratosphere is the region where the ozone chemistry is important for the balance of energy, and radiation in the near UV plays a fundamental role in the creation and destruction of ozone. However, the radiation in this range of wavelength has not been very well modeled. One of the most important elements, according to its abundance in the solar atmosphere, that contribute to the emission and absorption of radiation in the spectral range between 1900 and 3900 Å, is neutral nickel (Ni I). In this work we improve the atomic model of this element, taking into account 490 lines over the spectrum. We solve these lines in NLTE using the Solar Radiation Physical Modeling (SRPM) program and compare the results with observation of the quiet sun spectrum.
Global magnetic fields: variation of solar minima
Authors: Tlatov Andrey G. , Obridko Vladimir N.
Published: July 2012

The topology of the large-scale magnetic field of the Sun and its role in the development of magnetic activity were investigated using Hα charts of the Sun in the period 1887-2011. We have considered the indices characterizing the minimum activity epoch, according to the data of large-scale magnetic fields. Such indices include: dipole-octopole index, area and average latitude of the field with dominant polarity in each hemisphere and others. We studied the correlation between these indices and the amplitude of the following sunspot cycle, and the relation between the duration of the cycle of large-scale magnetic fields and the duration of the sunspot cycle.

The comparative analysis of the solar corona during the minimum epochs in activity cycles 12 to 24 shows that the large-scale magnetic field has been slow and steadily changing during the past 130 years. The reasons for the variations in the solar coronal structure and its relation with long-term variations in the geomagnetic indices, solar wind and Gleissberg cycle are discussed.

We also discuss the origin of the large-scale magnetic field. Perhaps the large-scale field leads to the generation of small-scale bipolar ephemeral regions, which in turn support the large-scale field. The existence of two dynamos: a dynamo of sunspots and a surface dynamo can explain phenomena such as long periods of sunspot minima, permanent dynamo in stars and the geomagnetic field.
The 3D solar minimum with differential emission measure tomography
Authors: Vásquez Alberto M. , Frazin Richard A. , Huang Zhenguang , Manchester Ward B. , Shearer Paul
Published: July 2012

Differential emission measure tomography (DEMT) makes use of extreme ultraviolet (EUV) image series to deliver two products: a) the three-dimensional (3D) reconstruction of the coronal emissivity in the instrumental bands, and b) the 3D distribution of the local differential emission measure (LDEM). The LDEM allows, in turn, construction of 3D maps of the electron density and temperature distribution. DEMT is being currently applied to the space-based EUV imagers, allowing reconstruction of the inner corona in the height range 1.00 to 1.25 R⊙. In this work we applied DEMT to different Carrington Rotations corresponding to the last two solar Cycle minima. To reconstruct the 2008 minimum we used data taken by the Extreme UltraViolet Imager (EUVI), on board the Solar TErrestrial RElations Observatory (STEREO) spacecraft, and to reconstruct the 1996 minimum we used data taken by the Extreme ultraviolet Imaging Telescope (EIT), on board the Solar and Heliospheric Observatory (SOHO). We show here comparative results, discussing the observed 3D density and temperature distributions in the context of global potential magnetic field extrapolations. We also compare the DEMT results with other observational and modeling efforts of the same periods.
Coronal transients during two solar minima: their source regions and interplanetary counterparts
Authors: Cremades Hebe , Mandrini Cristina H. , Dasso Sergio
Published: July 2012

We have investigated two full solar rotations belonging to two distinct solar minima, in the frame of two coordinated observational and research campaigns. The nearly uninterrupted gathering of solar coronal data since the beginning of the SOHO era offers the exceptional possibility of comparing two solar minima for the first time, with regard to coronal transients. This study characterizes the variety of outward-travelling transients observed in the solar corona during both time intervals, from very narrow jet-like events to coronal mass ejections (CMEs). Their solar source regions and ensuing interplanetary structures were identified and characterized. Multi-wavelength images from the space missions SOHO, Yohkoh and STEREO, and ground-based observatories were studied for coronal ejecta and their solar sources, while in situ data registered by the ACE spacecraft were inspected for interplanetary CMEs and magnetic clouds. Instrumental aspects such as dissimilar resolution, cadence, and fields of view are considered in order to discern instrumentally-driven disparities from inherent differences between solar minima.
Dynamical evolution of anisotropies of the solar wind magnetic turbulent outer scale
Authors: Ruiz M. E. , Dasso S. , Matthaeus W. H. , Marsch E. , Weygand J. M.
Published: July 2012

The evolution of the turbulent properties in the solar wind, during the travel of the parcels of fluid from the Sun to the outer heliosphere still has several unanswered questions. In this work, we will present results of an study on the dynamical evolution of turbulent magnetic fluctuations in the inner heliosphere. We focused on the anisotropy of the turbulence integral scale, measured parallel and perpendicular to the direction of the local mean magnetic field, and study its evolution according to the aging of the plasma parcels observed at different heliodistances. As diagnostic tool we employed single-spacecraft correlation functions computed with observations collected by Helios 1 & 2 probes over nearly one solar cycle. Our results are consistent with driving modes with wave-vectors parallel to the direction of the local mean magnetic field near the Sun, and a progressive spectral transfer of energy to modes with perpendicular wave-vectors. Advances made in this direction, as those presented here, will contribute to our understanding of the magnetohydrodynamical turbulence and Alfvénic-wave activity for this system, and will provide a quantitative input for models of charged solar and galactic energetic particles propagation and diffusion throughout the inner heliosphere.
Geomagnetic effects on cosmic ray propagation for different conditions
Authors: Masías-Meza Jimmy J. , Bertou Xavier , Dasso Sergio
Published: July 2012

The geomagnetic field (Bgeo) sets a lower cutoff rigidity (Rc) to the entry of cosmic particles to Earth which depends on the geomagnetic activity. From numerical simulations of the trajectory of a proton (performed with the MAGCOS code) in the Bgeo, we use backtracking to analyze particles arriving at the Auger Observatory location. We determine the asymptotic trajectories and the values of Rc in different incidence directions. Simulations were done using several models of Bgeo that emulate different geomagnetic conditions.
Earth–directed coronal mass ejections and their geoeffectiveness during the 2007–2010 interval
Authors: Oprea Constantin , Mierla Marilena , Maris Georgeta
Published: July 2012

In this study we analyse the coronal mass ejections (CMEs) directed towards the Earth during the interval 2007–2010, using the data acquired by STEREO mission and those provided by SOHO, ACE and geomagnetic stations. A study of CMEs kinematics is performed. This is correlated with CMEs interplanetary manifestations and their geomagnetic effects, along with the energy transfer flux into magnetosphere (the Akasofu coupling function). The chosen interval that is practically coincident with the last solar minimum, offered us a good opportunity to link and analyse the chain of phenomena from the Sun to the terrestrial magnetosphere in an attempt to better understand the solar and heliospheric processes that can cause major geomagnetic storms.
Evolution of a very complex active region during the decay phase of Cycle 23
Authors: Poisson Mariano , Fuentes Marcelo López , Mandrini Cristina H. , Démoulin Pascal , Pariat Etienne
Published: July 2012

We study the emergence and evolution of AR NOAA 10314, observed on the solar disk during March 13-19, 2003. This extremely complex AR is of particular interest due to its unusual magnetic flux distribution and the clear rotation of the polarities of a δ-spot within the AR. Using SOHO/MDI magnetograms we follow the evolution of the photospheric magnetic flux to infer the morphology of the structure that originates the AR. We determine the tilt angle variation for the δ-spot and find a counter-clockwise rotation corresponding to a positive writhed flux tube. We compute the magnetic helicity injection and the total accumulated helicity in the AR and find a correlation with the observed rotation.
Stellar cycles: general properties and future directions
Authors: Giampapa Mark S.
Published: July 2012

We discuss the general properties of stellar cycles with emphasis on their amplitudes as a function of stellar parameters, particularly those stellar characteristics relevant to dynamo-driven magnetic activity. We deduce an empirical scaling relation between cycle frequency and differential rotation based on previously established empirical relations. We also compare the recent Cycle 23 to cycles in solar-type stars. We find that the extended minimum of Cycle 23 resembled in its Ca II H & K emission at minimum the mean levels of activity seen in stars with no cycles.
Modulated stellar and solar cycles: parallels and differences
Authors: Oláh K. , van Driel-Gesztelyi L. , Strassmeier K. G.
Published: July 2012

We present examples of activity cycle timescales on different types of stars from lowmass dwarfs to more massive giants, with wide-ranging rotation rates, and compare the observed cyclicities to the irradiance based solar cycle and its modulations. Using annual spectral solar irradiance in wavelength bands typical for stellar observations reconstructed by Shapiro et al. (2011), a direct comparison can be made between cycle timescales and amplitudes derived for the Sun and the stars. We show that cycles on multiple timescales, known to be present in solar activity, also show up on stars when the dataset is long enough to allow recognition. The cycle lengths are not fixed, but evolve – gradually during some periods but there are also changes on short timescales. In case the activity is dominated by spots, i.e., by cooler surface features, the star is redder when fainter, whereas other type of activity make the stars bluer when the activity is higher. We found the Sun to be a member of the former group, based on reconstructed spectral irradiance data by Shapiro et al. (2011).
The solar wind in time
Authors: Linsky Jeffrey L. , Wood Brian E. , Redfield Seth
Published: July 2012

We describe our method for measuring mass loss rates of F–M main sequence stars with high-resolution Lyman-α line profiles. Our diagnostic is the extra absorption on the blue side the interstellar hydrogen absorption produced by neutral hydrogen gas in the hydrogen walls of stars. For stars with low X-ray fluxes, the correlation of observed mass loss rate with X-ray surface flux and age predicts the solar wind mass flux between 700 Myr and the present.
Magnetic activity of cool stars in the Hertzsprung-Russell diagram
Authors: Schmitt J. H. M. M.
Published: July 2012

I review the X-ray emission from cool stars with outer convection zones in comparison to the Sun with a focus on the properties of low-activity stars. I present the recent results of long-term X-ray monitoring which demonstrate the existence of X-ray cycles on stars with known calcium cycles. The evidence of a minimum stellar X-ray flux is presented and arguments are put forward for the view that the Sun in its extended minimum between 2008 - 2009 behaved very much like a Maunder-minimum Sun.
Semi-empirical modelling of stellar magnetic activity
Authors: Valio Adriana
Published: July 2012

Since Galileo, for four hundred years, dark spots have been observed systematically on the surface of the Sun. The monitoring of the sunspot number has shown that their number varies periodically every 11 years. This is the well-known solar activity cycle that is caused by the periodic changes of the magnetic field of the Sun. Not only do spots vary in number on a timescale of a decade, but the total luminosity and other signatures of activity such as flares and coronal mass ejections also increase and decrease with the 11-year cycle. Still unexplained to the present date are periods of decades with almost an absence of activity, where the best known example is the Maunder Minimum. Other stars also exhibit signs of cyclic activity, however the level of activity is usually thousand times higher than the solar one. Obviously, this is due to the difficulty of observing activity at the solar level on most stars. Presently, a method has been developed to detect and study individual solar like spots on the surface of planet-harbouring stars. As the planet eclipses dark patches on the surface of the star, a detectable signature can be observed in the light curve of the star during the transit. The study of a different variety of stars allows for a better understanding of magnetic cycles and the evolution of stars.
12 years of stellar activity observations in Argentina
Authors: Mauas P. J. D. , Buccino A. , Díaz R. , Vieytes M. , Petrucci R. , Jofre E. , Abrevaya X. , Luoni M. L. , Valenzuela P.
Published: July 2012

We present an observational program we started in 1999, to systematically obtain mid-resolution spectra of late-type stars, to study in particular chromospheric activity. In particular, we found cyclic activity in four dM stars, including Prox-Cen. We directly derived the conversion factor that translates the known S index to flux in the Ca II cores, and extend its calibration to a wider spectral range. We investigated the relation between the activity measurements in the calcium and hydrogen lines, and found that the usual correlation observed is the product of the dependence of each flux on stellar color, and it is not always preserved when simultaneous observations of a particular star are considered. We also used our observations to model the chromospheres of stars of different spectral types and activity levels, and found that the integrated chromospheric radiative losses, normalized to the surface luminosity, show a unique trend for G and K dwarfs when plotted against the S index.
A statistical analysis of Hα-Ca II relation for solar-type stars of different activity levels
Authors: Buccino Andrea P. , Vieytes Mariela C. , Mauas Pablo J. D.
Published: July 2012

Based on our large spectral database obtained at CASLEO Argentinian Observatory, we analyzed the relation between simultaneous measurements of Hα and Ca ii H+K fluxes. Although the correlation between both proxies is positive for the solar case, in 2007 our group found that while some stars exhibit correlations between Hα and the Ca ii lines, the slopes change from star to star, including cases where no correlation was found. To discern if this flux-flux relation depends on the level of activity of the star and if it is associated with the distribution of active regions in the stellar atmosphere, in this work we analyze the relation between Hα-Ca ii fluxes for the whole set of 44 G dwarf stars and individually for a subset of several solar-type stars of different level of activity.
Grand minima of solar activity during the last millennia
Authors: Usoskin Ilya G. , Solanki Sami K. , Kovaltsov Gennady A.
Published: July 2012

In this review we discuss the occurrence and statistical properties of Grand minima based on the available data covering the last millennia. In particular, we consider the historical record of sunspot numbers covering the last 400 years as well as records of cosmogenic isotopes in natural terrestrial archives, used to reconstruct solar activity for up to the last 11.5 millennia, i.e. throughout the Holocene. Using a reconstruction of solar activity from cosmogenic isotope data, we analyze statistics of the occurrence of Grand minima. We find that: the Sun spends about most of the time at moderate activity, 1/6 in a Grand minimum and some time also in a Grand maximum state; Occurrence of Grand minima is not a result of long-term cyclic variations but is defined by stochastic/chaotic processes; There is a tendency for Grand minima to cluster with the recurrence rate of roughly 2000-3000 years, with a weak ≈210-yr periodicity existing within the clusters. Grand minima occur of two different types: shorter than 100 years (Maunder-type) and long ≈150 years (Spörer-type). It is also discussed that solar cycles (most possibly not sunspots cycle) could exist during the Grand minima, perhaps with stretched length and asymmetric sunspot latitudinal distribution.

These results set new observational constraints on long-term solar and stellar dynamo models.
Historical records of solar grand minima: a review
Authors: Vaquero José M.
Published: July 2012

Knowing solar activity during the past centuries is of great interest for many purposes. Historical documents can help us to know about the behaviour of the Sun during the last centuries. The observation of aurorae and naked-eye sunspots provides us with continuous information through the last few centuries that can be used to improve our knowledge of the long-term solar activity including solar Grand Minima. We have more or less detailed information on only one Grand minimum (the Maunder minimum in the second half of 17th century), which serves as an archetype for Grand minima in general. Telescopic sunspot records and measurements of solar diameter during Maunder minimum are available. In this contribution, I review some recent progress on these issues.
Potential energy stored by planets and grand minima events
Authors: Cionco Rodolfo G.
Published: July 2012

Recently, Wolff & Patrone (2010), have developed a simple but very interesting model by which the movement of the Sun around the barycentre of the Solar system could create potential energy that could be released by flows pre-existing inside the Sun. The authors claim that it is the first mechanism showing how planetary movements can modify internal structure in the Sun that can be related to solar cycle. In this work we point out limitations of mentioned mechanism (which is based on interchange arguments), which could be inapplicable to a real star. Then, we calculate the temporal evolution of potential energy stored in zones of Sun's interior in which the potential energy could be most efficiently stored taking into account detailed barycentric Sun dynamics. We show strong variations of potential energy related to Maunder Minimum, Dalton Minimum and the maximum of Cycle 22, around 1990. We discuss briefly possible implications of this putative mechanism to solar cycle specially Grand Minima events.
Climate interaction mechanism between solar activity and terrestrial biota
Authors: Osorio-Rosales J. , Mendoza B.
Published: July 2012

The solar activity has been proposed as one of the main factors of Earth's climate variability, however biological processes have been also proposed. Dimethylsulfide (DMS) is the main biogenic sulfur compound in the atmosphere. DMS is mainly produced by the marine biosphere and plays an important role in the atmospheric sulfur cycle. Currently it is accepted that terrestrial biota not only adapts to environmental conditions but influences them through regulations of the chemical composition of the atmosphere. In the present study we used different methods of analysis to investigate the relationship between the DMS, Low Clouds, Ultraviolet Radiation A (UVA) and Sea Surface Temperature (SST) in the Southern Hemisphere. We found that the series analyzed have different periodicities which can be associated with climatic and solar phenomena such as El Niño, the Quasi-Biennial Oscillation (QBO) and the changes in solar activity. Also, we found an anticorrelation between DMS and UVA, the relation between DMS and clouds is mainly non-linear and there is a correlation between DMS and SST. Then, our results suggest a positive feedback interaction among DMS, solar radiation and cloud at time-scales shorter than the solar cycle.
Seeing measurement on Sasahuine mountain, Moquegua, Perú
Authors: Ferradas-Alva C. , Ferrero G. , Huamán M. , Guevara-Day W. , Meza E. , Samanes J. , Becerra P.
Published: July 2012

One of the greatest factors that significantly affect the quality of astronomical images is the atmospheric turbulence causing what we call “seeing”. We present results of the reduction and photometry of astronomical images obtained at the Sasahuine mountain astronomical site (4511 m.a.s.l.), located in the Southern Peruvian Andes, in the department of Moquegua, near the town of Cambrune. These data show preliminary seeing measurements for this site. The present work is part of a bigger investigation program called JANAX which seeks to evaluate potential astronomical observation sites in Peruvian territory through a series of observation missions. The program's aim is to gather data to validate the site for the future construction of a National Astronomical Observatory. The observations were made using an SBIG ST-7MX CCD camera and a BVR standard filter set, attached to a MEADE LX200 356mm telescope.
Creating a sunspot database at the Solar Observatory of Ica National University in Perú
Authors: Martínez-Meneses Lurdes
Published: July 2012

We describe the database and the method used to analyze the sunspot data recorded at the Solar Observatory of the University of Ica in Peru. The parameters that are measured include the relative sunspot number (R), the sunspot area, their positions on the disk, and an estimate of the constant (k) included in R. Sunspots in the database are classified following the Zurich Classification System. From these observations, the active region area, the sunspot rotation speed, and other active regions properties can be estimated.
A solar station in Ica - Mutsumi Ishitsuka: a research center to improve education at the university and schools
Authors: Terrazas-Ramos Raúl
Published: July 2012

The San Luis Gonzaga National University of Ica has built a solar station, in collaboration with the Geophysical Institute of Peru, the National Astronomical Observatory of Japan and the Hida Observatory. The Solar Station has the following equipment: a digital Spectrograph Solar Refractor Telescope Takahashi 15 cm aperture, 60 cm reflector telescope aperture, a magnetometer-MAGDAS/CPNM and a Burst Monitor Telescope Solar-FMT (Project CHAIN). These teams support the development of astronomical science and Ica in Peru, likewise contributing to science worldwide. The development of basic science will be guaranteed when university students, professors and researchers work together. The Solar Station will be useful for studying the different levels of university education and also for the general public. The Solar Station will be a good way to spread science in the region through public disclosure.
The enduring relevance of the model Platonism critique for economics and public policy – Addendum
Authors: ARNOLD DARRELL , MAIER-RIGAUD FRANK P.
Published: July 2012

The article by Arnold and Maier-Rigaud contained incomplete information of the authors’ affiliation. The correct affiliation should be: IÉSEG School of Management (LEM-CNRS), Paris, France, OECD Competition Division, Paris, France, Max Planck Institute for Research on Collective Goods, Bonn, Germany.