scholarly journals Alpine Stream Habitat Classification: An Alternative Approach Incorporating the Role of Dynamic Water Source Contributions

2003 ◽  
Vol 35 (3) ◽  
pp. 313-322 ◽  
Author(s):  
L. E. Brown ◽  
D. M. Hannah ◽  
A. M. Milner
Author(s):  
Junyu Zou ◽  
Zefeng Song ◽  
Duan Yamin

Abstract Wudalianchi is a typical continental Cenozoic volcanic group rich in potassic volcanic rocks (Northeast China). Five hydrologically connected barrier lakes (Lakes 5 to 1) and upwelling cold mineral springs occur, forming a complex lake-groundwater system. Clarifying the water-source contributions and the role of water-rock interactions in the hydrological cycling for barrier lakes remains a challenge from scientific and engineering perspectives. In this study, seasonal variations of multiple isotopes were analyzed. δ18O and δD data indicate that the Wudalianchi lakes were mainly fed by mineral springs. The values, however, were greatly influenced by precipitation (rain and snow) and varying evaporation intensities. In contrast, 87Sr/86Sr ratios varied little between seasons (0.70701–0.7079), suggesting similar water-rock interactions through time. Nonetheless, Sr isotopic mixing models suggested that shallow mineral springs generally contributed >50% of the water to lower reaches. In contrast, the upstream wetland contributed >50% to Lake 5 and decreased down-valley (10.3–53.6%). Calculations based on the δ18O and δD Rayleigh fractionation equation suggest that evaporation in upper reaches were higher than the lower reaches. The evaporation in July were generally higher than in October. This study demonstrates the homogenous water-rock interactions and the associated water mixing effects on the terrestrial volcanic area.


Entropy ◽  
2021 ◽  
Vol 23 (6) ◽  
pp. 773
Author(s):  
Amichai Painsky ◽  
Meir Feder

Learning and making inference from a finite set of samples are among the fundamental problems in science. In most popular applications, the paradigmatic approach is to seek a model that best explains the data. This approach has many desirable properties when the number of samples is large. However, in many practical setups, data acquisition is costly and only a limited number of samples is available. In this work, we study an alternative approach for this challenging setup. Our framework suggests that the role of the train-set is not to provide a single estimated model, which may be inaccurate due to the limited number of samples. Instead, we define a class of “reasonable” models. Then, the worst-case performance in the class is controlled by a minimax estimator with respect to it. Further, we introduce a robust estimation scheme that provides minimax guarantees, also for the case where the true model is not a member of the model class. Our results draw important connections to universal prediction, the redundancy-capacity theorem, and channel capacity theory. We demonstrate our suggested scheme in different setups, showing a significant improvement in worst-case performance over currently known alternatives.


Biomedicines ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 754
Author(s):  
Giulia Gaggi ◽  
Andrea Di Credico ◽  
Pascal Izzicupo ◽  
Giovanni Iannetti ◽  
Angela Di Baldassarre ◽  
...  

Parkinson’s disease (PD) is one of the most common neurodegenerative disease characterized by a specific and progressive loss of dopaminergic (DA) neurons and dopamine, causing motor dysfunctions and impaired movements. Unfortunately, available therapies can partially treat the motor symptoms, but they have no effect on non-motor features. In addition, the therapeutic effect reduces gradually, and the prolonged use of drugs leads to a significative increase in the number of adverse events. For these reasons, an alternative approach that allows the replacement or the improved survival of DA neurons is very appealing for the treatment of PD patients and recently the first human clinical trials for DA neurons replacement have been set up. Here, we review the role of chemical and biological molecules that are involved in the development, survival and differentiation of DA neurons. In particular, we review the chemical small molecules used to differentiate different type of stem cells into DA neurons with high efficiency; the role of microRNAs and long non-coding RNAs both in DA neurons development/survival as far as in the pathogenesis of PD; and, finally, we dissect the potential role of exosomes carrying biological molecules as treatment of PD.


2015 ◽  
Vol 50 (3) ◽  
pp. 81-107 ◽  
Author(s):  
Bernard C. Lategan

The article explores the contours of multiple identities in contrast to singular identities in situations of social complexity and cultural diversity. Nyamnjoh's concepts of “incompleteness” and “frontier Africans” imply an alternative approach to identity formation. Although the formation of one's own, singular identity is a necessary stage in the development of each individual, it has specific limitations. This is especially true in situations of complexity and diversity and where the achievement of social cohesion is an important goal. With reference to existing theories of identity formation, an alternative framework is proposed that is more appropriate for the dynamic, open-ended nature of identity and better suited to encourage the enrichment of identity. The role of imagination, a strategy for crossing borders (with reference to Clingman's concept of a “grammar of identity”), the search for commonality, and the effect of historical memory are discussed. Enriched and multiple identities are not achieved by replacement or exchange, but by widening (existing) singular identities into a more inclusive and diverse understanding of the self.


2018 ◽  
Vol 46 (4-5) ◽  
pp. 503-523
Author(s):  
Stéfanie Khoury

Abstract The role of business in violations of human rights has been at the heart of international debates for decades. As early as the 1970s attempts were made at the UN by Global South nations (known as the G-77) to establish internationally-binding mechanisms to address corporate violations of human rights. Ultimately, those attempts were watered down into “codes of conduct”. In the early 1990s, the “Washington Consensus” was used to steer states to deregulate and restructure their economies in a race-to-the-bottom that placed emphasis upon integrating the global economy over human rights and environmental protections. Although corporate violations existed before, it was only at this juncture that many human rights cases were brought into public view. Some litigation was pursued, but it was most often in tort, and sometimes in criminal courts. This article argues that the existing regional human rights courts have bolstered corporate human rights, while at the same time have remained on the sidelines of addressing corporate accountability. The emergent ASEAN human rights system has not yet developed a human rights court. The article suggests that there are key grassroots movements shaping human rights discourses around corporate accountability through the region and that these offer exciting prospects for an alternative approach to addressing corporate accountability through a prospective supervisory mechanism.


2018 ◽  
Vol 9 (1) ◽  
pp. 62
Author(s):  
Yusy Widarahesty

The phenomenon of gender gap in Japan has brought many impacts of change in Japan from the declining birth rate and including the emergence of non-profit organizations (NPO) action groups namely "Fathering Japan"(Ikumen) founded by Tatsuya Ando in 2006, which tried to present as a form of resistance ideology from the myth of "Gender Stereotypes" hegemony in Japan.Ando established the NPOto encourage present and future fathers to play a more active role in child-rearing.“The priority of traditional Japanese fathers is work ... they don't know what to do even when they come home early," said Tetsuya Ando. Thus, it is important to study this social and cultural phenomenon to understand the whole structure of Japanese non-traditional security problem that can be seen through the “Fathering Japan” as a new discourse. By using the discourse alternative approach to analyze the role of the social movement of "Fathering Japan" (Ikumen) as the resistance ideology from Japan cultural mythology, the study was conducted by using qualitative methods through the Discourse Analysis by Ernesto and Chantal Mouffe.Keywords: Fathering Japan, discourse, Non Profit Organization, gender gap, JapanAbstrakFenomena kesenjangan gender di Jepang telah membawa banyak dampak perubahan di Jepang dari tingkat kelahiran yang menurun dan termasuk munculnya  Organisasi Non Profit  (NPO) yaitu "Fathering Japan" (Ikumen) yang didirikan oleh Tatsuya Ando pada 2006, yang mencoba menyajikan bentuk ideologi perlawanan dari mitos hegemoni "Gender Stereotypes" di Jepang. Ando mendirikan NPO untuk mendorong ayah hadir di masa depan untuk memainkan peran yang lebih aktif dalam membesarkan anak. "Prioritas ayah tradisional Jepang adalah pekerjaan ... mereka tidak tahu apa yang harus dilakukan bahkan ketika mereka pulang lebih awal," kata Tetsuya Ando.Dengan demikian, penting untuk mempelajari fenomena sosial dan budaya ini untuk memahami keseluruhan struktur masalah keamanan non-tradisional Jepang yang dapat dilihat melalui "Fathering Japan" sebagai diskursus baru. Dengan menggunakan pendekatan diskursus alternatif  untuk menganalisis peran gerakan sosial "Fathering Japan" (Ikumen) sebagai ideologi perlawanan dari mitologi budaya Jepang, penelitian ini dilakukan dengan menggunakan metode kualitatif melalui Analisis Wacana oleh Ernesto dan Chantal Mouffe .Kata kunci: fathering Jepang, diskursus, NPO, ketimpangan gender, Jepang


2017 ◽  
Vol 3 (1) ◽  
pp. 91-116 ◽  
Author(s):  
Hanmo Zhang

Among the many depictions of the Yellow Emperor that survive in a number of early Chinese texts, the historicized image of this purported ancient sage king has been accepted by many Chinese scholars as that of a historical figure and has greatly inspired their reconstruction of China’s remote past. In examining some of the extant Huangdi narratives, especially passages preserved in theDiscourses of the States[Guoyu],Records of the Grand Historian[Shiji], andRemaining Zhou Documents[Yi Zhoushu], this paper reveals a trend of historicizing an originally mythical Yellow Emperor presented in early Chinese writings. It also explores the historiographical reasoning behind such historicization and provides an alternative approach emphasizing the role of persuasion in the Huangdi narratives.


2013 ◽  
Vol 146 (1) ◽  
pp. 82-92 ◽  
Author(s):  
Gay Hawkins

Is there anything left to say about public value and public service broadcasting (PSB) without lapsing into boosterism, special pleading, or wildly unsubstantiated claims about the role of PSB in making citizens and democracy? This article develops an alternative approach, one that considers publicness not as a pre-given or static value, but as something that has to be continually enacted or performed. Using recent debates in political theory, it examines the processes and ontological effects of what Latour calls ‘making things public’. It makes two assumptions. The first is that there is no such thing as ‘the public’ out there waiting to be addressed; rather, publics have to be called into being The second is that there are a multiplicity of ways in which publicness can be assembled, and the challenge for PSB is to establish why its strategies are better. The example used is the ABC's current affairs discussion show Q&A, which is investigated to see how it generates an ontology of publicness. In what ways is the notion of public address and assembly mobilised? How does the experience of a public as a form of what Warner calls ‘Stranger sociability’ extend from the live audience to the household viewer? In what ways are the notions of public reason and rational discussion enacted and disrupted? And how does this enactment of publicness generate a sometimes poetic, anarchic or ribald shadow reality tweeted in from anonymous participants competing for public attention? Finally, how does it both reproduce and reinvent existing institutional regimes of value within the ABC?


Author(s):  
William Blattner

“California Heideggerianism,” as developed in the 1980‘s by Dreyfus, Haugeland, and Guignon, interprets Heidegger’s notion of the Anyone in Being and Time as a pattern of social normativity that establishes the contours of Dasein’s self-understanding and world. Specifically, the Anyone maintains a reservoir of “anonymous” or “generic” social roles, and individual cases of Dasein understand themselves by throwing themselves into one or several such social roles. Thus, the content of Dasein’s self-understanding is circumscribed by those possibilities of living on offer from Anyone. I argue that this reconstruction of the role of the Anyone is neither phenomenologically plausible nor exegetically required. To develop an alternative approach, I analyze the pragmatic normativity of those situations in which Dasein is called upon to deviate from everyday social norms. I draw upon Haugeland’s reconstruction of the phenomenon of conscience in Being and Time, which I argue can lead us to a conception of authentic self-understanding in which the content of self-understanding is neither some utterly novel and unprecedented form of originality nor provided by anonymous social norms. Rather, this owned content is the product of specifying impersonal possibilities of self-understanding that reside in the background culture in which one lives.


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