Approximation of a matrix with positive elements by a matrix of a unit rank

Author(s):  
Anatoly Panyukov ◽  
Khalid Chaloob ◽  
Yasir Mezal
Keyword(s):  
2007 ◽  
pp. 59-72
Author(s):  
I. Lavrov

The author considers theoretical, philosophical and methodological aspects of normative approach in economic theory. The article discusses normative analysis and types of normative and positive elements in economic theory, basing upon difference between abstract and real objects of science. The specific traits of generations as subjects of economic and socio-political history are determined.


2019 ◽  
Vol 60 ◽  
pp. 88-94
Author(s):  
Victoria T. Zakharova

The article is devoted to revealing in the views of V.V. Rozanov the positive elements of the domestic life and ideal beginnings of Russian life, – both in synchronic and diachronic plans. Various works of the writer and philosopher became the objects of the study: books belonging to the genre of “prose of fragments”, journalistic essays, “Russian Nile” travel essay, articles and reviews of the art criticism character. The analysis showed how important for the philosopher was the idea of the essentiality of preserving those spiritual and cultural national traditions that had always been the key to the sustainability of life.


Geriatrics ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 44
Author(s):  
Shelley A. Sternberg ◽  
Shiri Shinan-Altman ◽  
Ladislav Volicer ◽  
David J. Casarett ◽  
Jenny T. van der Steen

Palliative care including hospice care is appropriate for advanced dementia, but policy initiatives and implementation have lagged, while treatment may vary. We compare care for people with advanced dementia in the United States (US), the Netherlands, and Israel. We conducted a narrative literature review and expert physician consultation around a case scenario focusing on three domains in the care of people with advanced dementia: (1) place of residence, (2) access to palliative care, and (3) treatment. We found that most people with advanced dementia live in nursing homes in the US and the Netherlands, and in the community in Israel. Access to specialist palliative and hospice care is improving in the US but is limited in the Netherlands and Israel. The two data sources consistently showed that treatment varies considerably between countries with, for example, artificial nutrition and hydration differing by state in the US, strongly discouraged in the Netherlands, and widely used in Israel. We conclude that care in each country has positive elements: hospice availability in the US, the general palliative approach in the Netherlands, and home care in Israel. National Dementia Plans should include policy regarding palliative care, and public and professional awareness must be increased.


Author(s):  
C Thomas ◽  
J Westwood ◽  
G F Butt

Abstract Background YouTube is increasingly used as a source of healthcare information. This study evaluated the quality of videos on YouTube about cochlear implants. Methods YouTube was searched using the phrase ‘cochlear implant’. The first 60 results were screened by two independent reviewers. A modified Discern tool was used to evaluate the quality of each video. Results Forty-seven videos were analysed. The mean overall Discern score was 2.0 out of 5.0. Videos scored higher for describing positive elements such as the benefits of a cochlear implant (mean score of 3.4) and scored lower for negative elements such as the risks of cochlear implant surgery (mean score of 1.3). Conclusion The quality of information regarding cochlear implant surgery on YouTube is highly variable. These results demonstrated a bias towards the positive attributes of cochlear implants, with little mention of the risks or uncertainty involved. Although videos may be useful as supplementary information, critical elements required to make an informed decision are lacking. This is of particular importance when patients are considering surgery.


2010 ◽  
Vol 53 (6) ◽  
pp. 1565-1570 ◽  
Author(s):  
ChangGuo Wei ◽  
LiGuang Wang
Keyword(s):  

Author(s):  
Santiago Tejedor ◽  
Laura Cervi ◽  
Ana Pérez-Escoda ◽  
Fernanda Tusa ◽  
Alberto Parola

The COVID-19 pandemic has transformed training processes. The transition from face-to-face to virtuality has affected the entire educational process favoring one of the open innovation key features in the higher education institutions: the ability to manage knowledge flow. Open innovation in this crisis situation will encourage universities to deal with difficulties and embrace opportunities to enhance knowledge production. In this regard, the main objective of this work is to analyze how universities have managed knowledge flow during lockdown situation. The research presents a comparative study between three countries highly impacted by the coronavirus (Spain, Italy and Ecuador) based on perceptions from teachers and students on a convenience sample of 573 individuals. The study, of a descriptive and exploratory nature, applied surveys between March and April 2020 to students and teachers of Journalism, Communication. The survey had 2956 responses, collecting 65,032 pieces of evidence from students and 6468 from teachers. Teachers and students show their preference for being present, but they recognize the justification for the change of scenery and identify positive elements in virtuality. According to the findings obtained, the absence of presence has not generated an increase in the meetings between teachers and students. In addition, the tutorials have been shorter and sporadic. Added to this is a scant commitment to the variety of resources and options offered by the Internet. The predominance of textual material collides with the demand from students for a mixture of training resources, a greater role for the podcast and, especially, a typology of assessment tests that pass the traditional exams.


1991 ◽  
Vol 11 (10) ◽  
pp. 4863-4875
Author(s):  
S V Iyer ◽  
D L Davis ◽  
S N Seal ◽  
J B Burch

We screened a chicken liver cDNA expression library with a probe spanning the distal region of the chicken vitellogenin II (VTGII) gene promoter and isolated clones for a transcription factor that we have named VBP (for vitellogenin gene-binding protein). VBP binds to one of the most important positive elements in the VTGII promoter and appears to play a pivotal role in the estrogen-dependent regulation of this gene. The protein sequence of VBP was deduced from a nearly full length cDNA copy and was found to contain a basic/zipper (bZIP) motif. As expected for a bZIP factor, VBP binds to its target DNA site as a dimer. Moreover, VBP is a stable dimer free in solution. A data base search revealed that VBP is related to rat DBP. However, despite the fact that the basic/hinge regions of VBP and DBP differ at only three amino acid positions, the DBP binding site in the rat albumin promoter is a relatively poor binding site for VBP. Thus, the optimal binding sites for VBP and DBP may be distinct. Similarities between the VBP and DBP leucine zippers are largely confined to only four of the seven helical spokes. Nevertheless, these leucine zippers are functionally compatible and appear to define a novel subfamily. In contrast to the bZIP regions, other portions of VBP and DBP are markedly different, as are the expression profiles for these two genes. In particular, expression of the VBP gene commences early in liver ontogeny and is not subject to circadian control.


Author(s):  
MOHD FARADI MOHAMED GHAZALI ◽  
NORDIANA AB. JABAR

Lirik lagu merupakan salah satu manifestasi sastera yang mencerminkan ketinggian nilai budaya masyarakat pendukungnya. Lirik dan irama lagu semestinya nusa yang berpisah tiada dan menjadi hiburan dalam kehidupan manusia. Menerusi lirik lagu ia bukan hanya sekadar mengulit halwa telinga dan memberi hiburan semata-mata, malah dalam seni kata lagu juga terkandung dengan nilai, moral dan pengajaran yang mampu memberi didikan dalam membentuk keperibadian seseorang. Kepelbagaian genre dan bait lagu yang terhasil menunjukkan variasi kebudayaan daripada pengkarya yang menunjukkan kreadiliti keunggulan dalam sesuatu penciptaan karya. Kajian ini dilaksanakan sebagai merungkai persoalan tentang peranan lirik lagu terpilih dalam mengembleng unsur positif terhadap masyarakat pendengar. Selain itu, kajian ini juga meneliti bait-bait lirik lagu Tolong Ingatkan Aku, yang dihasil dan dinyanyikan oleh Ana Raffali sehingga diangkat mempunyai nilai komersial kerana telah dijulang sebagai juara lagu dalam Anugerah Juara Lagu Ke-25. Kaedah kajian ini dijalankan secara kualitatif atau kepustakaan melalui penelitian bahan seperti artikel, buku, majalah dan tesis. Teori resepsi dijadikan sebagai sandaran untuk meneliti dan merungkaikan setiap bait lirik lagu ini yang merangkumi aspek gaya bahasa, teknik penulisan, unsur kesamaran, bauran kiasan dan perlambangan atau semiotik bagi membuktikan falsafah gaya penyampaian pengkarya. Hasil kajian mendapati lagu Tolong Ingatkan Aku merupakan sebuah karya berbentuk lagu puisi yang terhasil dalam penyampaian implisit sebagai memberi pesanan, sindiran halus dan nasihat terhadap kehidupan manusia agar tidak alpa tatkala berada di kemuncak kegemilangan.   The lyrics of the song are one of the literary manifestations that reflect the high cultural values of its supporters. The lyrics and the rhythm of the song should not be separated tomb and become an entertainment in human life. Through the lyrics of the song it is not just about listening to the ears and providing entertainment, but also in the art of the word, the song also contains the values, morals and teachings that can provide education in shaping one's personality. The variety of genres and bytes of the resulting song reflects the cultural variation of the work that exemplifies the mastery of excellence in the creation of a work. This study was conducted to address the question of the role of selected song lyrics in shaping positive elements in the listening community. In addition, this study also examines the lyrics of the song Tolong Ingatkan Aku, which was produced and sung by Ana Raffali until it was commercially recognized for being nominated for a song of the year in the 25th Anugerah Juara Lagu. This research method is conducted qualitatively or literature review through the study of materials such as articles, books, magazines and theses. The reception theory was used as a guideline to examine and interpret every verse of the lyrics of this song, which included aspects of language style, writing techniques, ambiguity, metaphorical and symbolic or semiotic elements to prove the artist's delivery style philosophy. The result of the study found the song Tolong Ingatkan Aku is a work of poetic form that results in implicit delivery as giving orders, delicate satire and advice to human life to avoid the harp while at its peak.


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