Surge \u3c3s Yik Yak

It was recently brought to the Surge team’s attention that a post was made on the social media hub, Yik Yak, claiming that “Surge must hate Yik Yak.” As a Surge editor and author, I want to clarify – nothing could be further from the truth. [excerpt

Fearless Friday: Tiarra Riggins

As we conclude Yik Yak Awareness Week, we’d like to recognize Tiarra Riggins ’17, the fearless organizer behind this week’s events. ”People don’t realize how words can damage a soul,” says Tiarra. Her efforts this week have been aimed at stopping cyberbullying and changing the culture of Yik Yak to a more positive and uplifting space. The events during this past week ranged from a discussion on the effects of cyberbullying to daily CUB tables, encouraging students to sign a banner against cyberbullying and the negative aspects of Yik Yak. [excerpt

A survey on composition and microbiota of fresh and fermented yak milk at different Tibetan altitudes

Yak milk is a type of milk that people are less familiar with due to its remote geographical location, the particular geographical environment and climatic conditions in Tibet, which may have significant effects on composition, microbiota and fermentation outcome. To investigate the chemical composition and microbiota of fresh and fermented yak milk, and to isolate and characterize the predominant microorganisms in the fermented milk, yak milk (24 fresh and 30 fermented milk samples) was collected from four areas of different altitudes in Tibet, and their microbiological profile and chemical composition were investigated. Yak milk had a higher fat, crude protein, lactose and dry matter content than cow milk. The fermented yak milk showed a great diversity in fat and dry matter levels due to the different ways of processing in different localities, and lower pH and higher lactic acid content compared with commercial cow milk yogurt. Fermented yak milk had a better sanitary quality than fresh yak milk. Three species of lactobacilli (Lactobacillus fermentum, Lactobacillus helveticus and Lactobacillus curvatus) and five species of yeast (Saccharomyces cerevisiae, Candida kefyr, Candida lambica, Candida famat and Candida holmii) were identified phenotypically and encountered as predominant fermentation microbiota. The predominant lactic species in fermented milk was L. fermentu

MARGINALISATION OF YAK HERDERS IN BHUTAN: CAN PUBLIC POLICY GENERATE NEW STABILITIES THAT CAN SUPPORT THE TRANSFORMATION OF THEIR SKILLS AND ORGANISATIONS? AND BONDS TO TERRITORIES: A CASE STUDY IN FRANCE AND BRAZIL

N° ISBN - 978-2-7380-1284-5International audienceBhutan is a small Himalayan Monarchy populated with 672,425 inhabitants and located between the subtropical Indian plains and the Tibetan plateau. The yak herders (less than 5% of the population) occupy the Northern belt of the country, alpine region ranging between 2,500 and 6,000m. Yaks ensure their livelihoods with the provision of manure, draught power, meat, hair and dairy products and the possibility to barter the surplus with grains, salt, tools or clothes. Until the 50's Bhutan was still a feudal state isolated from the rest of the world. An original approach to development was put in place to modernise the economy, prioritizing the growth national happiness over Growth Domestic Product. This communication questions the capacity of this development strategy to prevent the marginalisation of yak herding taking place elsewhere in the world. It highlights the footing of the traditional yak farming systems, presents the driving forces of modernisation and analyses as a transfer of complexity the resulting pressures on the yak herding resources and social linkages. It appears that the Bhutanese middle path for development may have prolonged the existence of the yak farming system. Yet it failed so far to create a stable environment able to support the transformation of the herders' skills and organisations and to stabilise their income. Just as it benefited some mountainous areas in Europe, it seems worth investigating the opportunity to add value and to restore the image of the herding activity through a work on the quality of the yak products

Accurate Extraction of Noise Source Impedance of an SMPS Under Operating Conditions

An accurate measurement method to extract the common mode (CM) and the differential mode (DM) noise source impedances of a switched mode power supply (SMPS) under its operating condition is developed and validated. With a proper pre-measurement calibration process, the proposed method allows extraction of both the CM and the DM noise source impedances with very good accuracy. These noise source impedances come in handy to design an electromagnetic interference (EMI) filter for a SMPS systematically with minimum hassl

Kondo Effect of a Magnetic Ion Vibrating in a Harmonic Potential

To discuss Kondo effects of a magnetic ion vibrating in the sea of conduction electrons, a generalized Anderson model is derived. The model includes a new channel of hybridization associated with phonon emission or absorption. In the simplest case of the localized electron orbital with the s-wave symmetry, hybridization with p-waves becomes possible. Interesting interplay among the conventional s-wave Kondo effect and the p-wave one and the Yu-Anderson type Kondo effect is found and the ground state phase diagram is determined by using the numerical renormalization group method. Two different types of stable fixed points are identified and the two-channel Kondo fixed points are generically realized on the boundary.Comment: 15 pages, 17 figures, J. Phys. Soc. Jpn. 80 (2011) No.6 to be publishe

Weak core and central weak core inverse in a proper ∗*-ring

In this paper, we introduce the notion of weak core and central weak core inverse in a proper $*$-ring. We further elaborate on these two classes by producing a few representation and characterization of the weak core and central weak core invertible elements. We investigate additive properties and a few explicit expressions for these two classes of inverses through other generalized inverses. In addition to these, numerical examples are provided to validate a few claims on weak core and central weak core inverses.Comment: 20 pages, 1 figur