Milne Universe, Tachyons, and Quantum Group

We analyze the spectrum of the bosonic and superstring on the orbifold of the space-time by a boost, leading to the cosmological singularity. We show that the modular invariance leads to the spectrum where the twisted sector tachyon, together with all other twisted sector fields, present in the Euclidean version of the orbifold, is absent. This makes impossible to resolve the singularity by a marginal deformation of the worldsheet CFT. We also establish a relation between the resolution of rotational orbifolds in Euclidean and Lorentzian setups, and quantum groups. The analysis confirms the impossibility of resolving the cosmological orbifold singularity.Comment: harvmac, 14p

The Effects of Mild Concussions and Pomegranates on Behavior

The neuropathological effects of mild concussions can accumulate, leading to the development of motor and cognitive deficits. Although there are currently no treatments that can restore lost function after repetitive concussion, our laboratory has shown that dietary supplementation with pomegranate polyphenols can improve Alzheimer’s-like pathology, protect mice from the effects of proton irradiation, and protect humans from post-operative cognitive deficits. This study investigated the behavioral and neuropathological effects of repetitive concussions in mice and the use of dietary supplementation with pomegranate to ameliorate these effects. Adult mice were given dilute pomegranate juice or control water for 1 week, followed by anesthesia, repeated anesthesia (3 days apart), or repeated concussive injury (a single closed-head injury to each hemisphere 3 days apart). They were then maintained on the pomegranate juice or control water for 2 additional weeks. Behavioral testing was administered 1, 3, 5, and 7-11 days post injury to assess cognitive, motor, and affective functions. Repeated concussion, but not repeated anesthesia, induced motor and learning deficits, some of which were significantly reduced by pomegranate juice. These data suggest that the model of mild repeated concussive injury in mice might be used to test neuroprotective treatment in future studies

Dark Matter Antibaryons from a Supersymmetric Hidden Sector

The cosmological origin of both dark and baryonic matter can be explained through a unified mechanism called hylogenesis where baryon and antibaryon number are divided between the visible sector and a GeV-scale hidden sector, while the Universe remains net baryon symmetric. The "missing" antibaryons, in the form of exotic hidden states, are the dark matter. We study model-building, cosmological, and phenomenological aspects of this scenario within the framework of supersymmetry, which naturally stabilizes the light hidden sector and electroweak mass scales. Inelastic dark matter scattering on visible matter destroys nucleons, and nucleon decay searches offer a novel avenue for the direct detection of the hidden antibaryonic dark matter sea.Comment: 33 pages, 10 figures. Minor changes to match published versio

Crisis and sustainable business in Central and Eastern Europe: Haniel-Seminar discussion paper

--Internationalization,economic crisis,Russia,Hungary,Belarus

Rights-based Approaches in Ecuador’s Fishery for Mangrove Cockles

The fishery for ark clams or mangrove cockles (Anadara tuberculosa and A. similis) has been culturally and economically important in communities that depend on mangrove forests throughout the Pacific coast of Latin America since pre-Columbian times. In Ecuador, more than 3 000 artisanal fishermen manually harvest bivalve molluscs of the genus Anadara. However, this fishery has been vulnerable to harvesting pressures and habitat destruction. For almost three decades, researchers and international organizations have increasingly recognized the value of Territorial Use Rights in Fisheries (TURFs) as a tool for achieving marine conservation and socially equitable outcomes in fisheries management. Since 2000, the Ecuadorian government began granting mangrove concessions to local fishing associations to promote mangrove conservation and sustainable use in fisheries. Many of those fishing associations designed management plans for benthic resources (such as cockles and crabs) similar to TURF arrangements in other parts of the world. This paper explores how these institutional arrangements contribute to the goals of sustainability with particular attention to challenges and tradeoffs. The mangrove concessions have created conditions that promote habitat health necessary for fishery productivity while strengthening resource rights, enabling communities to pursue sustainable fishing-based livelihoods for present and future generations. On the other hand, the creation of exclusive access rights for particular user groups has also exacerbated tensions among independent cockle gatherers that feel they are increasingly losing access to their customary fishing grounds. Moreover, fishing pressures and a lack of compliance with the minimum size regulations continue to threaten the sustainability of the fishery. Understanding tradeoffs in Ecuador\u27s integrated approach to coastal management may provide valuable insights for the management of other small-scale benthic fisheries within multiple-use coastal zones. We recommend it is necessary to create opportunities for diversified livelihoods in locations where TURFs or similar forms of territorial use privileges are implemented

Pengaruh Kualitas Pelayan dan Kualitas Harga Terhadap kepuasan Pelanggan Small Street Coffe Rawalumbu Bekasi

Penelitian ini bertujuan untuk mengetahui ada pengaruh Kualitas Pelayanan dan Kualitas Harga terhadap Kepuasan Pelanggan di Small Street Coffe. Jenis penelitian ini adalah kuantitatif. Populasi dalam penelitian ini tidak diketahui. Teknik sampling dengan menggunakan Non-Probability Sampling dengan menggunakan teknik Purposive Sampling. Sampel dalam penelitian ini berjumlah 100 responden. Teknik Pengambilan data dengan cara menyebarkan kuesioner melalui Google Form. Pengujian hipotesis dalam penelitian ini menggunakan analisis Regresi Linier Berganda. Subjek penelitian yaitu konsumen Small Street Coffe. Hasil dari penelitian ini menunjukkan bahwa variabel Kualitas Pelayanan dan Kualitas Harga secara parsial dan simultan berpengaruh signifikan dan memiliki hubungan pengaruh positif terhadap variabel Kepuasan Pelanggan.Penelitian ini bertujuan untuk mengetahui ada pengaruh Kualitas Pelayanan dan Kualitas Harga terhadap Kepuasan Pelanggan di Small Street Coffe. Jenis penelitian ini adalah kuantitatif. Populasi dalam penelitian ini tidak diketahui. Teknik sampling dengan menggunakan Non-Probability Sampling dengan menggunakan teknik Purposive Sampling. Sampel dalam penelitian ini berjumlah 100 responden. Teknik Pengambilan data dengan cara menyebarkan kuesioner melalui Google Form. Pengujian hipotesis dalam penelitian ini menggunakan analisis Regresi Linier Berganda. Subjek penelitian yaitu konsumen Small Street Coffe. Hasil dari penelitian ini menunjukkan bahwa variabel Kualitas Pelayanan dan Kualitas Harga secara parsial dan simultan berpengaruh signifikan dan memiliki hubungan pengaruh positif terhadap variabel Kepuasan Pelanggan

Knowledge, attitudes and practices of breast feeding among lactating mothers in a tertiary care hospital in Dakshina Kannada district: a cross sectional survey

Background: Breastfeeding plays a crucial role in the general health and wellbeing of infants. However, this fact has been made to look inconsequential due to various misconceptions and lack of adequate knowledge among lactating mothers. The aim of this study was to assess the knowledge, attitudes and practices of breastfeeding among postnatal women in Dakshinakannada district of Karnataka, India. The objective was to educate them and encourage breastfeeding.Methods: This study is a cross-sectional survey conducted during a period of 2 months from November to January 2019 among 80 postnatal mothers regarding their KAP of breastfeeding. A questionnaire was designed from FAO guidelines for assessing nutrition-related knowledge, attitudes and practices manual and The Iowa Infant Feeding Attitudes. The data was collected by a single interviewer, collaborated into a 3-point Likert scale and analyzed using descriptive statistics.Results: The study shows that 81.25% of the mothers had good knowledge regarding breastfeeding, but the alarming finding was that 46.6% of them had a neutral attitude towards it.Conclusions: The study showed that there is significant possibility for enhancing breastfeeding practices among lactating mothers by simple provision of supportive prenatal and postnatal counselling. The role played by healthcare workers in this context would be very imperative to accomplish millennium development goals of reducing infant mortality