Is KR Cygni a Triple Star System?

New multi-color UBVR light curves of the eclipsing binary KR Cyg were obtained in 2005. Photometric solutions were derived using the Wilson- Devinney method. The result shows that KR Cyg is a near-contact binary system with a large effective temperature difference between the components, approximately 5230 K. All the times of minimum light were collected and combined with our observations obtained in 2010 and 2011. Analysing all the times of mid-eclipse, we found for the first time a possible periodic oscillation with an amplitude of 0.001 days and a period of ~76 years. The periodic oscillation could be explained by the light-time effect due to a presumed third component.Comment: 19 pages, 6 figure

Nonlinear Energetic Particle Transport in the Presence of Multiple Alfvenic Waves in ITER

This work presents the results of a multi mode ITER study on Toroidal Alfven Eigenmodes, using the nonlinear hybrid HAGIS-LIGKA model. It is found that main conclusions from earlier studies of ASDEX Upgrade discharges can be transferred to the ITER scenario: global, nonlinear effects are crucial for the evolution of the multi mode scenario. This work focuses on the ITER 15 MA baseline scenario with with a safety factor at the magnetic axis of $q_0 =$ 0.986. The least damped eigenmodes of the system are identified with the gyrokinetic, non-perturbative LIGKA solver, concerning mode structure, frequency and damping. Taking into account all weakly damped modes that can be identified linearly, nonlinear simulations with HAGIS reveal strong multi mode behavior: while in some parameter range, quasi-linear estimates turn out to be reasonable approximations for the nonlinearly relaxed energetic particle profile, under certain conditions low-n TAE branches can be excited. As a consequence, not only grow amplitudes of all modes to (up to orders of magnitude) higher values compared to the single mode cases but also, strong redistribution is triggered in the outer radial area between $\rho_\mathrm{pol} =$ 0.6 and 0.85, far above quasi-linear estimates.Comment: 14 pages, 20 figures; To be published as special issue in PPCF 12/2015 for EPS Lisbon invited tal

Material Matters

Schneller documents his musical upbringing, travels around the world, and his studies of musicology

Electrical Power: Its Advent and Role in Revitalizing and Expanding New Orleans 1880-1915

Abstract New Orleans in 1900 was an endangered city clinging to a narrow strip of relatively high ground along the lower Mississippi river. Frequent flooding occurred from the river in the spring and from the lake in the June to October hurricane season. No reliable source of drinking water and no systems for removal of sewerage and rain water existed. Disease mortality was very high especially from frequent outbreaks of yellow fever. The fortuitous appearance of new alternating current (AC) technologies, emerging engineering specialties, and a more progressive form of governance willing to support and finance large scale engineering projects gave New Orleans world class drainage, sewerage and potable water systems. With electric streetcars providing service to newly drained areas and greatly reduced disease mortality, New Orleans entered the twentieth century transformed into a safe and expanding city. Key Words: Electricity, New Orleans, Infrastructur

ECONOMIC EVALUATION OF DIFFERENT LAND USE TYPES IN THE MODEL AREA OF BODROGKÖZ

This study deals with five settlements (Karos, Karcsa, Pácin, Nagyrozvágy, Cigánd) of Bodrogköz. The main goal of the case-study is to provide a method for the assessment of the economic impacts of land-use planning. The paper shows the connection between economic and land-use models of specific areas. Although the input conditions of the evaluations (e.g. agri-environmental payments) have changed, the framework of the methodology is independent from the input variables, so it can be a useful example for similar assessments. The first part of the study focuses on potential alternative land use options for the region. We suggested changes in land use on the basis of the so-called ’ecotype’ model. In the second part we present the economic evaluation method of the land use changes. We analyzed the consequences of the suggested conversions based on an economic model. Data collection was done by using questionnaires. The results indicated that in the studied area a range of significant modifications should be carried out, including especially the reduction of arable land area in favour of forests and grasslands. The economic assessments indicated that adjusting land use to suit the potential of the land offers economic advantages; that is, when the suggested changes are implemented with the help of agro-environmental subsidies. Our study however, disregarded all other types of costs (investing into new machinery and special equipment), as well as the social (psychological) aspects of conversion. This latter issue should be taken seriously because significant changes often require farmers to engage in entirely new activities. As transition to a new, drainage-based management system influences a larger area, it also demands cooperation from the farmers and the inhabitants. Researchers and experts consider our evaluation a suitable background for further studies. Our study provides farmers with local information so they can efficiently co-operate in regional land use activities. Similar studies and the continuation of this particular study are suggested in smaller regions within the floodland of River Tisza, where many attempts have already been made to introduce measures of flood¬land landscape management. As the case-study area is an important site of floodplain landscape management, our findings may contribute significantly to the wealth of information on the new perspectives of this special farming method. Therefore another aim of the research was to develop a framework for complex assessments of the floodland landscape management methods. ----------------------------------------------------- A bemutatásra kerülÅ‘ öt bodrogközi településre (Karos, Karcsa, Pácin, Nagyrozvágy, Cigánd) kiterjedÅ‘ kutatásunk két részbÅ‘l állt. Az elemzések elsÅ‘ része a termÅ‘föld hasznosítására vonatkozó javaslatokat alapozta meg, a második rész pedig a javasolt változások gazdasági következményeit kísérelte meg modellezni. A termÅ‘föld hasznosítására vonatkozó javaslatok megalapozásához az úgynevezett „ökotípusos†modellt használtuk, míg az elemzés második részében a gazdasági hatásokat kérdőíves felmérésen alapuló ökonómiai modell segítségével értékeltük. Az elemzések eredményei egyértelműen igazolták, hogy a termÅ‘helyi adottságok (beleértve a rendszeres vízkivezetés, így az ártéri gazdálkodás lehetÅ‘ségét is) alapján a térségben jelentÅ‘s változásokra lenne szükség. Ez elsÅ‘sorban a jelenleg szántóként használt területek csökkenését, az erdÅ‘- és gyepterületek növekedését jelentené. A termÅ‘föld hasznosítására vonatkozó javaslatok gazdasági értékelése azt mutatta, hogy a termÅ‘helyi adottságokhoz történÅ‘ igazodás – az agrár-környezetgazdálkodási támogatásokat is figyelembe véve – gazdasági szempontból is kedvezÅ‘ lehet. A vizsgálat ugyanakkor nem terjedt ki arra, hogy egy ilyen új típusú környezethasználat megvalósítása milyen egyéb költségekkel jár (új gépek, berendezések), és nem foglalkozik a szociológiai (pszichológiai) kapcsolódásokkal sem. Ez utóbbi azért lehet fontos, mert a gazdáknak a korábbi tevékenységükhöz képest gyakran egy teljesen más típusú tevékenységre kell átállniuk. Továbbá a javasolt termÅ‘föld-használatok csak gazdálkodói összefogással valósíthatók meg, hiszen a rendszeres vízkivezetésen alapuló gazdálkodás nagyobb összefüggÅ‘ térséget érint. A kutatók és a tervezÅ‘k véleménye alapján az elvégzett elemzések jó kiindulópontot adhatnak a további kutatások elvégzésére, köztük a felsorolt hiányosságok pótlására. A vizsgálat elÅ‘segítheti a gazdálkodók hatékonyabb tájékoztatását és ezáltal azok térségi együttműködésének magvalósulását. Hasonló típusú kutatások elvégzését, illetve a jelenlegi munka kiterjesztését elsÅ‘sorban a Tisza menti ártéri területek esetében javasoljuk, ahol már több helyi próbálkozás is történt az ártéri tájgazdálkodás megvalósítására.land use evaluation, floodlands, change of land use, economic model, földhasználat-elemzés, ártéri szintek, tájhasználat-váltás, gazdasági modell., Agricultural and Food Policy, Land Economics/Use,

Family Policies and Institutional Satisfaction: An Intersectional Analysis of Tenure-Track Faculty

Gender and faculty career advancement have been examined with a focus on academic work environment, including faculty workloads, mentoring relationships, access to research networks, and work-life balance. Previous studies concerned with gender, employment, and care work only have considered child care. Additionally, the exploration of faculty and care work focused specifically on gender instead of examining the interaction of race and gender. To date, no study on academic work-life policies includes faculty perceptions of their importance and effectiveness nor has the faculty assessment of eldercare policy been examined in relation to career success. Guided by an intersectional perspective, this study compares responses provided by four groups of faculty: African American women, African American men as well as white women and white men. Toward this end, I use data from the 2008 and 2009 Tenure-Track Faculty Job Satisfaction survey collected by the Collaborative on Academic Careers in Higher Education (COACHE). First, I examine faculty perceptions regarding the importance of family policies as related to career success, the effectiveness of family policies at the institution, and the level of satisfaction with work-life balance. Second, I examine the extent to which departmental and institutional support for care work affects the faculty member\u27s overall satisfaction with the institution. The findings indicate that there are significant differences in policy perceptions within the intersectionally defined faculty groups as well as with overall satisfaction with work-life balance. African American women overwhelmingly indicate that eldercare policy is important to career success; while white women are more concerned with the importance of childcare policy. Regarding effectiveness of work-life policies, with the exception of childcare policy, the faculty groups do not differ significantly. Significant group differences emerge in faculty assessment of childcare policy with the largest proportion of white women dissatisfied with its effectiveness on their campuses. Finally, African American men are the most satisfied with their work-life balance. Second, in contrast to my hypothesis, the analysis reveals institutional-level support for care work influences overall satisfaction with the institution more so than departmental support. Also, women are more satisfied than men, and being married has a negative effect on satisfaction. The findings suggest care work still matters in relation to a faculty member\u27s career advancement. Institutions should create clear guidelines regarding policy use related to caregiving activities. These guidelines should encourage both men and women to use these policies for activities not related to childcare but also for broader care issues. Creating an automatic opt-in policy could assist in transforming a culture that has historically had a bias in using family policy. Further, race and gender must be considered when constructing policies to address career balance concerns. Not all policies affect people the same way, and depending on what type of care, child or elder, the challenges will be unique to the Social location of the faculty member