Tracking and imaging gamma ray experiment (TIGRE) for 1 to 100 MEV gamma ray astronomy

A large international collaboration from the high energy astrophysics community has proposed the Tracking and Imaging Gamma Ray Experiment (TIGRE) for future space observations. TIGRE will image and perform energy spectroscopy measurements on celestial sources of gamma rays in the energy range from 1 to 100 MeV. This has been a difficult energy range experimentally for gamma ray astronomy but is vital for the future considering the recent exciting measurements below 1 and above 100 MeV. TIGRE is both a double scatter Compton and gamma ray pair telescope with direct imaging of individual gamma ray events. Multi‐layers of Si strip detectors are used as Compton and pair converters CsI(Tl) scintillation detectors are used as a position sensitive calorimeter. Alternatively, thick GE strip detectors may be used for the calorimeter. The Si detectors are able to track electrons and positrons through successive Si layers and measure their directions and energy losses. Compton and pair events are completely reconstructed allowing each event to be imaged on the sky. TIGRE will provide an order‐of‐magnitude improvement in discrete source sensitivity in the 1 to 100 MeV energy range and determine spectra with excellent energy and excellent angular resolutions. It’s wide field‐of‐view of π sr permits observations of the entire sky for extended periods of time over the life of the mission

Resonances and fluctuations of strange particle in 200 GeV Au-Au collisions

We perform an analysis of preliminary data on strange particles yields and fluctuations within the Statistical hadronization model. We begin by describing the theoretical disagreements between different statistical models currently on the market. We then show how the simultaneous analysis of yields and fluctuations can be used to differentiate between the different models, and determine if one of them can be connected to underlying physics. We perform a study on a RHIC 200 GeV data sample that includes stable particles, resonances, and the event-by-event fluctuation of the $K/\pi$ ratio. We show that the equilibrium statistical model can not describe the fluctuation, unless an unrealistically small volume is assumed. Such small volume then makes it impossible to describe the total particle multiplicity. The non-equilibrium model,on the other hand, describes both the $K/\pi$ fluctuation and yields acceptably due to the extra boost to the $\pi$ fluctuation provided by the high pion chemical potential. $\Lambda(1520)$ and $K^*$ abundance is described within error bars, but the $\Sigma^*$ is under-predicted to $\sim$ 1.5 standard deviations. We suggest further measurements that have the potential to test the non-equilibrium model, as well as gauge the effect of re-interactions between hadronization and freeze-out.Comment: References added, equations corrected. As accepted for publication by Journal of Physics

Hyperon production in Ar+KCl collisions at 1.76A GeV

We present transverse momentum spectra, rapidity distribution and multiplicity of Lambda-hyperons measured with the HADES spectrometer in the reaction Ar(1.76A GeV)+KCl. The yield of Xi- is calculated from our previously reported Xi-/(Lambda+Sigma0) ratio and compared to other strange particle multiplicities. Employing a strangeness balance equation the multiplicities of the yet unmeasured charged Sigma hyperons can be estimated. Finally a statistical hadronization model is used to fit the yields of pi-, K+, K0s, K-, phi, Lambda and Xi-. The resulting chemical freeze-out temperature of T=(76+-2) MeV is compared to the measured slope parameters obtained from fits to the transverse mass distributions of the particles

Gender differences in the evolution of haute cuisine chef's career

This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Culinary Science & Technology on 2020, available online: http://www.tandfonline.com/10.1080/15428052.2019.1640156[EN] This article reviews gender differences in the career paths of successful chefs, including barriers, success factors, and the entrepreneurial path. The research was developed in 2016-17, using an international survey carried out in Spain, France, and the United States among culinary students, cooks, and chefs who responded to a structured questionnaire based on pre-selected topics. The results show that a chef's career requires various sets of skills. They should be leaders, mentors, and entrepreneurs. They work in a hard and competitive environment where building their brand and achieving public recognition is a must. Their professional satisfaction depends on learning, evolving, and launching their restaurant. There were two main differences between the sample of women chefs and the general sample of chefs: they required more mentoring, and they achieved greater job satisfaction when they were self-employed.Albors Garrigós, J.; Haddaji, M.; García-Segovia, P.; Peiró Signes, A. (2020). Gender differences in the evolution of haute cuisine chef's career. Journal of Culinary Science & Technology (Online). 18(6):439-468. https://doi.org/10.1080/15428052.2019.1640156S439468186Emiroğlu, B. D., Akova, O., & Tanrıverdi, H. (2015). The Relationship Between Turnover Intention and Demographic Factors in Hotel Businesses: A Study at Five Star Hotels in Istanbul. Procedia - Social and Behavioral Sciences, 207, 385-397. doi:10.1016/j.sbspro.2015.10.108Ainuddin, R. A., Beamish, P. W., Hulland, J. S., & Rouse, M. J. (2007). Resource attributes and firm performance in international joint ventures. Journal of World Business, 42(1), 47-60. doi:10.1016/j.jwb.2006.11.001Allen, H., & Mac Con Iomaire, M. (2016). «Against all odds»: Head chefs profiled. Journal of Culinary Science & Technology, 14(2), 107-135. doi:10.1080/15428052.2015.1080645Allen, H., & Mac Con Iomaire, M. (2016). Secrets of a Head Chef: Exploring Factors Influencing Success in Irish Kitchens. Journal of Culinary Science & Technology, 15(3), 187-222. doi:10.1080/15428052.2016.1225538Anderson, E. R. (2008). ‘Whose name’s on the awning?’ Gender, entrepreneurship and the American diner. Gender, Place & Culture, 15(4), 395-410. doi:10.1080/09663690802155611Balazs, K. (2001). Some like it haute: Organizational Dynamics, 30(2), 134-148. doi:10.1016/s0090-2616(01)00048-1Balazs, K. (2002). Take One Entrepreneur: European Management Journal, 20(3), 247-259. doi:10.1016/s0263-2373(02)00040-3Blanck, J. F. (2007). Research Chefs Association . Journal of Agricultural & Food Information, 8(1), 3-8. doi:10.1300/j108v08n01_02Boone, J., Veller, T., Nikolaeva, K., Keith, M., Kefgen, K., & Houran, J. (2013). Rethinking a Glass Ceiling in the Hospitality Industry. Cornell Hospitality Quarterly, 54(3), 230-239. doi:10.1177/1938965513492624Burgess, C. (2003). Gender and salaries in hotel financial management: it’s still a man’s world. Women in Management Review, 18(1/2), 50-59. doi:10.1108/09649420310462325Cairns, K., Johnston, J., & Baumann, S. (2010). Caring About Food. Gender & Society, 24(5), 591-615. doi:10.1177/0891243210383419Food and Femininity. (2015). doi:10.5040/9781474255158Carvalho, I., Costa, C., Lykke, N. & Torres, A. (2018). Agency, structures and women managers' views of their careers in tourism. In Women's Studies International Forum (Vol. 71, pp. 1-11). Pergamon. London.Casado-Díaz, J. M., & Simón, H. (2016). Wage differences in the hospitality sector. Tourism Management, 52, 96-109. doi:10.1016/j.tourman.2015.06.015Childers, L. & Kryza, A. (2015). The 17 best female chefs in America. Thrillist. Retrieved from https://www.thrillist.com/eat/nation/america-s-best-female-chefsChin, W. W. (2009). How to Write Up and Report PLS Analyses. Handbook of Partial Least Squares, 655-690. doi:10.1007/978-3-540-32827-8_29Cooper, J., Giousmpasoglou, C., & Marinakou, E. (2017). Occupational identity and culture: the case of Michelin-starred chefs. International Journal of Contemporary Hospitality Management, 29(5), 1362-1379. doi:10.1108/ijchm-02-2016-0071Costa, C., Bakas, F. E., Breda, Z., & Durão, M. (2017). ‘Emotional’ female managers: How gendered roles influence tourism management discourse. Journal of Hospitality and Tourism Management, 33, 149-156. doi:10.1016/j.jhtm.2017.09.011Day, E. (2015, June 7). Hélène Darroze: Life according to the world’s best female chef. The Guardian. Retrieved from http://www.theguardian.com/lifeandstyle/2015/jun/07/helene-darroze-female-chefsdruckman, charlotte. (2010). Why Are There No Great Women Chefs? Gastronomica, 10(1), 24-31. doi:10.1525/gfc.2010.10.1.24Maiti, C. K., Sen, S., Paul, A. K., & Acharya, K. (2007). First Report of Alternaria dianthicola Causing Leaf Blight on Withania somnifera from India. Plant Disease, 91(4), 467-467. doi:10.1094/pdis-91-4-0467bFerreira Freire Guimarães, C. R., & Silva, J. R. (2016). Pay gap by gender in the tourism industry of Brazil. Tourism Management, 52, 440-450. doi:10.1016/j.tourman.2015.07.003Fornell, C., & Larcker, D. F. (1981). Structural Equation Models with Unobservable Variables and Measurement Error: Algebra and Statistics. Journal of Marketing Research, 18(3), 382-388. doi:10.1177/002224378101800313George, R. T., & Hancer, M. (2005). Leader-Member Exchange Quality. Journal of Human Resources in Hospitality & Tourism, 3(2), 85-99. doi:10.1300/j171v03n02_04Gergaud, O., Smeets, V. & Warzynski, F. (2011). Learning by cooking and reputation building: A French recipe to become a top chef. American Association of Wine Economists. Working paper no.81. Retrieved from http://www.wine-economics.orgGlauber, R. (2011). Limited Access: Gender, Occupational Composition, and Flexible Work Scheduling. The Sociological Quarterly, 52(3), 472-494. doi:10.1111/j.1533-8525.2011.01215.xGuerrina, R. (2002). Mothering in Europe. European Journal of Women’s Studies, 9(1), 49-68. doi:10.1177/1350506802009001381Guyette, W. C. (1981). The Executive Chef: Manager or Culinarian? Cornell Hotel and Restaurant Administration Quarterly, 22(3), 71-78. doi:10.1177/001088048102200320Haddaji, M., Albors-Garrigós, J., & García-Segovia, P. (2017). Women chefs’ experience: Kitchen barriers and success factors. International Journal of Gastronomy and Food Science, 9, 49-54. doi:10.1016/j.ijgfs.2017.06.004Haddaji, M., Albors-Garrigós, J., & García-Segovia, P. (2017). Women Chefs’ Access Barriers to Michelin Stars: A Case-Study Based Approach. Journal of Culinary Science & Technology, 15(4), 320-338. doi:10.1080/15428052.2017.1289133Hair, J. F., Ringle, C. M., & Sarstedt, M. (2011). PLS-SEM: Indeed a Silver Bullet. Journal of Marketing Theory and Practice, 19(2), 139-152. doi:10.2753/mtp1069-6679190202Harringon, R., & Herzog, C. (2007). Chef John Folse: A Case Study of Vision, Leadership & Sustainability. Journal of Hospitality & Tourism Education, 19(3), 5-10. doi:10.1080/10963758.2007.10696892Harris, D. A., & Giuffre, P. (2010). «The Price You Pay»: How Female Professional Chefs Negotiate Work and Family. Gender Issues, 27(1-2), 27-52. doi:10.1007/s12147-010-9086-8Harris, D. A., & Giuffre, P. (2015). Taking the Heat. doi:10.36019/9780813571270Heilman, M. E., & Haynes, M. C. (2005). No Credit Where Credit Is Due: Attributional Rationalization of Women’s Success in Male-Female Teams. Journal of Applied Psychology, 90(5), 905-916. doi:10.1037/0021-9010.90.5.905Hoyt, C. L. & Simon, S. (2011). Female leaders: Injurious or inspiring role models for women? Jepson School of Leadership Studies articles, book chapters, and other publications. 114. Retrieved from http://scholarship.richmond.edu/jepson-faculty-publications/114Hurley, A. E. (1999). Incorporating feminist theories into sociological theories of entrepreneurship. Women in Management Review, 14(2), 54-62. doi:10.1108/09649429910261396Kiser, A. I. T. (2015). Workplace and leadership perceptions between men and women. Gender in Management: An International Journal, 30(8), 598-612. doi:10.1108/gm-11-2014-0097Knutson, B. J., & Schmidgall, R. S. (1999). Dimensions of the Glass Ceiling in the Hospitality Industry. Cornell Hotel and Restaurant Administration Quarterly, 40(6), 64-75. doi:10.1177/001088049904000618Ko, W.-H. (2012). The relationships among professional competence, job satisfaction and career development confidence for chefs in Taiwan. International Journal of Hospitality Management, 31(3), 1004-1011. doi:10.1016/j.ijhm.2011.12.004Lane, C. (2013). Taste makers in the «fine-dining» restaurant industry: The attribution of aesthetic and economic value by gastronomic guides. Poetics, 41(4), 342-365. doi:10.1016/j.poetic.2013.05.003Lee, K.-E. (2011). Moderating effects of leader-member exchange (LMX) on job burnout in dietitians and chefs of institutional foodservice. Nutrition Research and Practice, 5(1), 80. doi:10.4162/nrp.2011.5.1.80Lee, K., Yang, G., & Graham, J. L. (2006). Tension and trust in international business negotiations: American executives negotiating with Chinese executives. Journal of International Business Studies, 37(5), 623-641. doi:10.1057/palgrave.jibs.8400215Lloyd-Fore, N. (1988). Where Next for Women? Cornell Hotel and Restaurant Administration Quarterly, 29(3), 9-10. doi:10.1177/001088048802900306Mac Con Iomaire, M. (2008). Understanding the Heat—Mentoring: A Model for Nurturing Culinary Talent. Journal of Culinary Science & Technology, 6(1), 43-62. doi:10.1080/15428050701884196Martin, P., & Barnard, A. (2013). The experience of women in male-dominated occupations: A constructivist grounded theory inquiry. SA Journal of Industrial Psychology, 39(2). doi:10.4102/sajip.v39i2.1099Meah, A., & Jackson, P. (2013). Crowded kitchens: the ‘democratisation’ of domesticity? Gender, Place & Culture, 20(5), 578-596. doi:10.1080/0966369x.2012.701202Michelin. (2018). Retrieved from https://guide.michelin.comMintz, S. W. (1989). Cuisine and haute cuisine: How are they linked? Food and Foodways, 3(3), 185-190. doi:10.1080/07409710.1989.9961947Müller, K. F., VanLeeuwen, D., Mandabach, K., & Harrington, R. J. (2009). The effectiveness of culinary curricula: a case study. International Journal of Contemporary Hospitality Management, 21(2), 167-178. doi:10.1108/09596110910935660Nebel, E. C., Braunlich, C. G., & Zhang, Y. (1994). Career Paths in American Luxury Hotels: Hotel Food and Beverage Directors. International Journal of Contemporary Hospitality Management, 6(6), 3-9. doi:10.1108/09596119410070495Orser, B., & Leck, J. (2010). Gender influences on career success outcomes. Gender in Management: An International Journal, 25(5), 386-407. doi:10.1108/17542411011056877Pratten, J. D. (2003). What makes a great chef? British Food Journal, 105(7), 454-459. doi:10.1108/00070700310497255Pratten, J. D. (2003). The training and retention of chefs. International Journal of Contemporary Hospitality Management, 15(4), 237-242. doi:10.1108/09596110310475702Purcell, K. (1996). The relationship between career and job opportunities: women’s employment in the hospitality industry as a microcosm of women’s employment. Women in Management Review, 11(5), 17-24. doi:10.1108/09649429610122618Remington, J., & Kitterlin-Lynch, M. (2017). Still pounding on the glass ceiling: A study of female leaders in hospitality, travel, and tourism management. Journal of Human Resources in Hospitality & Tourism, 17(1), 22-37. doi:10.1080/15332845.2017.1328259Sanders, M. D. (2015). The world´s most elite female chefs reveal what it’s really like to have their Michelin stars. Retrieved from https://www.marieclaire.com/food-cocktails/g3262/women-chefs-three-michelin-stars/Santero-Sanchez, R., Segovia-Pérez, M., Castro-Nuñez, B., Figueroa-Domecq, C., & Talón-Ballestero, P. (2015). Gender differences in the hospitality industry: A Job quality index. Tourism Management, 51, 234-246. doi:10.1016/j.tourman.2015.05.025Sarstedt, M., Henseler, J., & Ringle, C. M. (2011). Multigroup Analysis in Partial Least Squares (PLS) Path Modeling: Alternative Methods and Empirical Results. Measurement and Research Methods in International Marketing, 195-218. doi:10.1108/s1474-7979(2011)0000022012Supski, S. (2006). ‘It Was Another Skin’: The kitchen as home for Australian post-war immigrant women. Gender, Place & Culture, 13(2), 133-141. doi:10.1080/09663690600573635Telerama. (2018). Gastronomie, Où sont les femmes? La carte des 500 cheffes à découvrir dans toute la France. Retrieved from https://www.telerama.fr/monde/gastronomie-la-carte-des-370-cheffes-a-decouvrir-dans-toute-la-france,n5514484.phpTims, M., Bakker, A. B., & Xanthopoulou, D. (2011). Do transformational leaders enhance their followers’ daily work engagement? The Leadership Quarterly, 22(1), 121-131. doi:10.1016/j.leaqua.2010.12.011USA Today. (2018, July 5). 50 states: 50 female chefs. Retrieved from https://www.usatoday.com/story/travel/experience/food-and-wine/2018/03/05/americas-female-chefs/385015002/onWilliams, C. L., & Dellinger, K. (Eds.). (2010). Gender and Sexuality in the Workplace. Research in the Sociology of Work. doi:10.1108/s0277-2833(2010)20WTO, World Tourism Association (2018), UNWTO Tourism Highlights: 2018 Edition, Madrid, Spain.Yen, C.-L. (Alan), Cooper, C. A., & Murrmann, S. K. (2013). Exploring Culinary Graduates’ Career Decisions and Expectations. Journal of Human Resources in Hospitality & Tourism, 12(2), 109-125. doi:10.1080/15332845.2013.752707Zhong, Y., & Couch, S. (2007). Hospitality Students’ Perceptions of Facilitators and Constraints Affecting Women’s Career Advancement in the Hospitality Industry. Family and Consumer Sciences Research Journal, 35(4), 357-373. doi:10.1177/1077727x07299993Zopiatis, A. (2010). Is it art or science? Chef’s competencies for success. International Journal of Hospitality Management, 29(3), 459-467. doi:10.1016/j.ijhm.2009.12.003Zopiatis, A., Theocharous, A. L., & Constanti, P. (2017). Career satisfaction and future intentions in the hospitality industry: An intrinsic or an extrinsic proposition? Journal of Human Resources in Hospitality & Tourism, 17(1), 98-120. doi:10.1080/15332845.2017.134074

Reeconstructing Sigma0 decays in STAR

Typical comparisons of data from nuclear collisions to particle production models require a caveat for (anti)Lambda yields from experimental inability to separate the contributions of those yields from Sigma state decays. Recent analysis in STAR is leading toward resolving the contribution from excited Sigma states, but the bulk contribution comes from electromagnetic decays of the (anti)Sigma0. In the STAR detector, photon conversions into e+e- pairs in the detector material have been used to identify photons from pi0 decays. A similar technique has been used here to identify photons from (anti)Sigma0 decays in conjunction with STAR's excellent PID capabilities for finding the associated (anti)Lambda daughters. We report here on progress toward measuring the (anti)Sigma0 yields in various nuclear collisions at RHIC.Comment: 8 pages, 5 figures, proceedings of Hot Quarks 2004 workshop, submitted to J. Phys.

Thermal Dileptons at LHC

We predict dilepton invariant-mass spectra for central 5.5 ATeV Pb-Pb collisions at LHC. Hadronic emission in the low-mass region is calculated using in-medium spectral functions of light vector mesons within hadronic many-body theory. In the intermediate-mass region thermal radiation from the Quark-Gluon Plasma, evaluated perturbatively with hard-thermal loop corrections, takes over. An important source over the entire mass range are decays of correlated open-charm hadrons, rendering the nuclear modification of charm and bottom spectra a critical ingredient.Comment: 2 pages, 2 figures, contributed to Workshop on Heavy Ion Collisions at the LHC: Last Call for Predictions, Geneva, Switzerland, 14 May - 8 Jun 2007 v2: acknowledgment include