nils-herrmann/clean_scirepeval huggingface dataset:
MiR 138 promotes smooth muscle cells proliferation and migration in db/db mice through down regulation of SIRT1.
Venue: Biochemical and biophysical research communications
Year: 2015

Diabetic vascular smooth muscle cells (VSMCs) exhibit significantly increased rates of proliferation and migration, which was the most common pathological change in atherosclerosis. In addition, the study about the role for miRNAs in the regulation of VSMC proliferation is just beginning to emerge and additional miRNAs involved in VSMC proliferation modulation should be identified.  The expression of miR 138 and SIRT1 were examined in SMCs separated from db/db mice and in SMC lines C 12511 exposed to high glucose with qRT PCR and western blot. The regulation of miR 138 on the expression of SMCs was detected with luciferase report assay. VSMCs proliferation and migration assays were performed to examine the effect of miR 138 inhibitor on VSMCs proliferation and migration.  We discovered that higher mRNA level of miR 138 and reduced expression of SIRT1 were observed in SMCs separated from db/db mice and in SMC lines C 12511. Moreover, luciferase report assay showed that the activity of SIRT1 3' UTR was highly increased by miR 138 inhibitor and reduced by miR 138 mimic. In addition, we examined that the up regulation of NF kB induced by high glucose in SMCs was reversed by resveratrol and miR 138 inhibitor. MTT and migration assays showed that miR 138 inhibitor attenuated the proliferation and migration of smooth muscle cells.  In this study, we revealed that miR 138 might promote proliferation and migration of SMC in db/db mice through suppressing the expression of SIRT1.
Antibodies and tuberculosis
Venue: Tuberculosis
Year: 2016

Tuberculosis (TB) remains a major public health problem internationally, causing 9.6 million new cases and 1.5 million deaths worldwide in 2014. The Bacillus Calmette Guerin vaccine is the only licensed vaccine against TB, but its protective effect does not extend to controlling the development of infectious pulmonary disease in adults. The development of a more effective vaccine against TB is therefore a pressing need for global health. Although it is established that cell mediated immunity is necessary for the control of latent infection, the presupposition that such immunity is sufficient for vaccine induced protection has recently been challenged. A greater understanding of protective immunity against TB is required to guide future vaccine strategies against TB. In contrast to cell mediated immunity, the human antibody response against M.tb is conventionally thought to exert little immune control over the course of infection. Humoral responses are prominent during active TB disease, and have even been postulated to contribute to immunopathology. However, there is evidence to suggest that specific antibodies may limit the dissemination of M.tb, and potentially also play a role in prevention of infection via mucosal immunity. Further, antibodies are now understood to confer protection against a range of intracellular pathogens by modulating immunity via Fc receptor mediated phagocytosis. In this review, we will explore the evidence that antibody mediated immunity could be reconsidered in the search for new vaccine strategies against TB.
Realization of $r$ Robust Formations in the Plane Using Control Barrier Functions
Venue: IEEE Control Systems Letters
Year: 2020

This letter presents control laws to drive groups of robots into formations with communication graphs that satisfy the <inline formula> <tex math notation="LaTeX"$r$ /tex math>/inline formula> robustness property, which allows for consensus in the presence of malicious robots. Using results in <inline formula> <tex math notation="LaTeX"$r$ /tex math>/inline formula> robustness and control barrier functions, the presented control laws ensure such formations in finite time, using a reference adjacency matrix or only a desired number of neighboring robots. The results are illustrated through simulations.
Turning the Immigration Policy Paradox Upside Down? Populist Liberalism and Discursive Gaps in South America 1
Year: 2015

A paradox of officially rejecting but covertly accepting irregular migrants has long been identified in the immigration policies of Western immigrant receiving states. In South America, on the other hand, a liberal discourse of universally welcoming all immigrants, irrespective of their origin and migratory status, has replaced the formally restrictive, securitized and not seldomly ethnically selective immigration rhetoric. This discursive liberalization has found partial translation into immigration laws and policies, but contrary to the universality of rights claimed in their discourses, governments reject recently increasing irregular south south migration from Africa, Asia, and the Caribbean to varying degrees. This paper applies a mixed methodological approach of discourse and legal analysis and process tracing to explore in how far recent immigration policies in South America constitute a liberal turn, or rather a reverse immigration policy paradox of officially welcoming but covertly rejecting irregular migrants. Based on the comparative analysis of Argentina, Brazil and Ecuador, the study identifies and explains South American "populist liberalism" in the sphere of migration. We highlight important implications for migration theory, thereby opening up new avenues of research on immigration policy making outside Western liberal democracies, and particularly in predominantly migrant sending countries.
Die Attach Machine Selection for Glue Voids Reduction Performance
Year: 2020

The paper is focused on the glue voids reduction of quad flat no leads (QFN) devices evaluated on different die attach machine platforms. The evaluation was narrowed down into two main die attach machines with the objective of attaining the best performance in terms of reducing or eliminating the glue voids. Glue voids were quantified and only die attach Machine B was able to satisfy the specification. The study used analysis of variance on the two machines and presented the effect of machine selection on glue voids reduction. For future works, the selected die attach machine could be used for devices with critical requirement.
Uplink contention based SCMA for 5G radio access
Venue: 2014 IEEE Globecom Workshops (GC Wkshps)
Year: 2014

Fifth generation (5G) wireless networks are expected to support very diverse applications and terminals. Massive connectivity with a large number of devices is an important requirement for 5G networks. Current LTE system is not able to efficiently support massive connectivity, especially on the uplink (UL) Among the issues that arise due to massive connectivity is the cost of signaling overhead and latency. In this paper, an uplink contention based sparse code multiple access (SCMA) design is proposed as a solution. First, the system design aspects of the proposed multiple access scheme are described. The SCMA parameters can be adjusted to provide different levels of overloading, thus suitable to meet the diverse traffic connectivity requirements. In addition, the system level evaluations of a small packet application scenario are provided for contention based UL SCMA. SCMA is compared to OFDMA in terms of connectivity and drop rate under a tight latency requirement. The simulation results demonstrate that contention based SCMA can provide around 2.8 times gain over contention based OFDMA in terms of supported active users. The uplink contention based SCMA scheme can be a promising technology for 5G wireless networks for data transmission with low signaling overhead, low delay, and support of massive connectivity.
Construction of four qubit quantum entanglement for SI (S 3/2, I 3/2) spin system
Venue: Quantum Inf. Process.
Year: 2013

In quantum information processing, spin 3/2 electron or nuclear spin states are known as two qubit states. For SI (S 3/2, I 3/2) spin system, there are 16 four qubit states. In this study, first, four qubit entangled states are obtained by using the matrix representation of Hadamard and CNOT logic gates. By considering 75As@C60 molecule as SI (S 3/2, I 3/2) spin system, four qubit entangled states are also obtained by using the magnetic resonance pulse sequences of Hadamard and CNOT logic gates. Then, it is shown that obtained entangled states can be transformed into each other by the transformation operators.
BalanceFlow: Controller load balancing for OpenFlow networks
Venue: 2012 IEEE 2nd International Conference on Cloud Computing and Intelligence Systems
Year: 2012

In the discussion about Future Internet, Software Defined Networking (SDN) enabled by OpenFlow, is currently seen as one of the most promising paradigm. While the availability and scalability concerns rises as a single controller could be alleviated by using replicate or distributed controllers, there lacks a flexible mechanism to allow controller load balancing. This paper proposes BalanceFlow, a controller load balancing architecture for OpenFlow networks. By utilizing CONTROLLER X action extension for OpenFlow switches and cross controller communication, one of the controllers, called "super controller" can flexibly tune the flow requests handled by each controller, without introducing unacceptable propagation latencies. Experiments based on real topology show that BalanceFlow can adjust the load of each controller dynamically.
Coded aperture compressive 3 D LIDAR
Venue: 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Year: 2015

Continuous improvement in optical sensing components, as well as recent advances in signal acquisition theory provide a great opportunity to reduce the cost and enhance the capabilities of depth sensing systems. In this paper we propose a new depth sensing architecture that exploits a fixed coded aperture to significantly reduce the number of sensors compared to conventional systems. We further develop a modeling and reconstruction framework, based on model based compressed sensing, which characterizes a large variety of depth sensing systems. Our experiments demonstrate that it is possible to reduce the number of sensors by more than 85% with negligible reduction on the sensing quality.
The Inclinations Of Entrepreneurial Cognition And Competencies: The Case Study Of Successful E Commerce New Venture Creation In Malaysia
Year: 2020

A number of research on entrepreneurs have been intensively conducted for the past years considering that it is one of the important elements in business. An entrepreneur is responsible for every aspect of new ventures creation considering that they are the lead person in every business decision. The process of forming new ventures is very challenging and involves a lot of thought. The process of forming new ventures has only received little attention in most established studies investigating the cognitive aspects of entrepreneur. On top of that, researchers tend to ignore the issues related to business ability in the creation of e commerce ventures. Much uncertainty still exists; hence, this study set out to determine the role of entrepreneurial cognitive and competencies that acts as the crucial components in the creation of new e commerce ventures in Malaysia. In this study, a case study approach is adopted for the purpose of data collection by conducting an interview on twelve e commerce entrepreneurs from May 2013 until December 2014. The findings revealed that personal background (education and family) as well as work and business skills are the important factors in the creation of new ventures by cognitive entrepreneurs in Malaysia. In the case of entrepreneurial competencies, it was deemed crucial for entrepreneurs to be equipped with both computer and communication skills to facilitate the creation of new ventures. Therefore, it is best for the government to promote entrepreneurial activity in the country by highlighting the elements of entrepreneurs in terms of cognitive ability and entrepreneurial competencies. Finally, the emergence of new ventures is hoped to further strengthen the economic progress of the country.
Variation tolerant self adaptive clock generation architecture based on a ring oscillator
Venue: 2012 IEEE International SOC Conference
Year: 2012

In this work we propose a self adaptive clock based on a ring oscillator as the solution for the increasing uncertainty in the critical path delay. This increase in uncertainty forces to add more safety margins to the clock period which produces a circuit performance downgrade. We evaluate three self adaptive clock systems: free running ring oscillator, infinite impulse response filter controlled RO and TEAtime controlled ring oscillator. The safety margin reduction of the three alternatives is investigated under different clock distribution delay conditions, dynamic variation frequencies and the presence of mismatch between the ring oscillator and the critical paths and the delay sensors.
Protective effects of different extracts of Eucommia ulmoides Oliv. against thioacetamide induced hepatotoxicity in mice.
Venue: Indian journal of experimental biology
Year: 2012

A comparison of analysis in evaluating the hepatoprotective action of fractional ethanolic (F0) ethyl acetic (F1) n butanol (F2) and aqueous (F3) extracts of E. ulmoides Oliv. (EUO) against thioacetamide (TAA) induced hepatic damage was studied in mice. The extract (453 mg/kg F0, 104 mg/kg F1, 95 mg/kg F2 and 237 mg/kg F3 body weight, po, once daily for 15 days) restored serum marker enzymes levels to normal in TAA treated mice. The biochemical biomarkers viz. total protein, albumin and total bilirubin were also restored forward normal level expression pattern of liver protein profile of mice by using sodium dodecyl sulfate polyacrylamide gel electrophoresis and two dimensional gel electrophoresis showed 144 spots in TAA administered group which were significantly reduced in EUO extracts treated group. Among the four extracts ethyl acetate (F1) and n butanol (F2) extracts showed more significant liver protection. TAA induced injury can be correlated with its high phenolic content in these extracts which may have hepatoprotective effects in regulating liver proteins by scavenging free radicals.
Overcoming Hepatic Artery Thrombosis After Living Donor Liver Transplantations: An Experience from Asan Medical Center
Venue: Annals of transplantation
Year: 2019

Hepatic artery (HA) reconstruction in living donor liver transplantation (LDLT) is more technically demanding than deceased donor LT (DDLT) because of the small diameter and short HA stump of the partial liver graft. Hence, hepatic artery thrombosis (HAT) can occur infrequently even though the HA is reconstructed microscopically. HAT is closely related to graft failure and mortality. Therefore, HAT should be detected early and HA flow reconstituted using several arterial inflows. We successfully performed redo HA reconstruction in LDLT and report our management process and outcomes.  The right gastroepiploic artery (RGEA) was used in 15 patients, previous native HA in 3, and interposition graft from the aorta in 1. All HA reconstructions were performed under a microscope using the end to end interrupted suture method. We reviewed technical feasibility, cause of hepatic artery revision (HAR) patency of redo HA flow, graft salvage rate, time of revision, biliary complications, and mortality.  Ten of 21 cases were salvage LT. Biliary complications developed in 6 cases. The mean interval of HAR with the RGEA was 1.5+ 1.2 postoperative days. All patients were alive without lethal complications of HAT during the mean follow up period of 23.3 months. In the other 6 cases of HAR without using the RGEA, we performed redo HA reconstruction after thrombectomy with the native right HA (n=2) right gastric artery, left HA, gastroduodenal artery, and jump graft from the aorta (n=1, respectively) Among them, 3 died from biliary sepsis, graft dysfunction from large sized ischemic injury, and pneumonia.  HAR with the RGEA is feasible for HAT management in LDLT patients without adequate hepatic arteries. When all inflows mentioned are unavailable, jump graft from the aorta using a cadaveric fresh iliac artery may be feasible.
Inventing Futurism: The Art and Politics of Artificial Optimism
Year: 2008

Preface ix Acknowledgments xiii CHAPTER ONE: Futurist Velocities 1 CHAPTER TWO: Folla/Follia: Futurism and the Crowd 35 CHAPTER THREE: Umberto Boccioni's The City Rises: Picturing the Futurist Metropolis 65 CHAPTER FOUR: Photogenic Abstraction: Giacomo Balla's Iridescent Interpenetrations 109 CHAPTER FIVE: Dreams of Metallized Flesh: Futurism and the Masculine Body 150 CHAPTER SIX: Futurist Love, Luxury, and Lust 181 CHAPTER SEVEN: Return of the Repressed: Vicissitudes of the Futurist Machine Aesthetic under Fascism 232 CHAPTER EIGHT: Epilogue 266 Notes 273 Works Cited 349 Index 361 Photography Credits 375
Towards a Better Understanding of the Value of Blockchains in Supply Chain Management
Venue: EMCIS
Year: 2019

Whether or not blockchain technology adds value to supply chains is a highly controversial topic. It has been lauded as the technology that brings transparency and efficiency to supply chains. However, others find this view overly optimistic. In this paper, we aim to add more insight into the issue by applying an action design research approach. We develop and evaluate two artifacts in collaboration with companies and use the results to conclude how blockchain technology can help overcome issues in the current supply chain information flow. It shows that blockchains can provide a shared trust base and a common standard that allows for increased information exchange between supply chain partners. Based on our findings, we propose a research agenda for studying blockchain technology with a stronger focus on governance mechanism and transparency issues.
An Examination of Television Consumption By Racial and Ethnic Audiences in the U.S.
Venue: Journal of Advertising Research
Year: 2019

Academic and practitioner studies have found that television consumption is highest among American audiences of diverse races and ethnicities. The validity of ethnic audience ratings measurement in the past has been questionable, predicating diminished multicultural audience valuation. One result has been less spending in the ethnic broadcast media landscape, which is hampered by media fragmentation. Using an analysis of Horowitz Research data, a nationally representative dataset that measures multicultural cable viewership, the authors examined the relationship between television viewership and multiculturalism, mediated by programmatic and media fragmentation influences and covaried by demographics influences.
Onde esta o homem negro na publicidade? Masculinidades negras no segmento de higiene pessoal Where is the black man in advertising? Black masculinities in the personal hygiene segment
Year: 2020

Nos ultimos anos temos assistido a emergencia de discussoes sobre feminismos no combate ao sexismo nas sociedades, principalmente a brasileira, historicamente patriarcal. Assim emergem debates sobre masculinidades e, motivados por essa discussao, verificamos como elas sao representadas na comunicacao das marcas Axe, Gillette, Old Spice e Rexona. Especificamente, destacamos como as marcas construiram representacoes de masculinidades negras em seus canais no Youtube. Ancorados em discussoes do feminismo negro, de masculinidades e na teoria interseccional, observamos a comunicacao das marcas ao longo do ano de 2018. Os resultados apontam para indices insuficientes de representatividade em proporcao a populacao nacional. O homem negro como coadjuvante ou figurante e mais recorrente e isso nos leva a um debate sobre a representacao e representatividade. Quando protagoniza e estereotipado, reflexo do racismo estrutural.
Conditions for open innovation in public organizations: evidence from Challenge.gov
Year: 2020

Public organisations have long sought new ways to enhance organisational performance and employee morale, bring about organisational change, and foster innovations. While governments across the world have continually embarked upon administrative reform efforts, the efficacy and adoption of such reforms remains understudied. This study explores whether organisational and individual factors predict the adoption and use of open innovation in government. In particular, we use the case of Challenge.gov, a novel open innovation platform in the U.S. federal government that aimed to engage the creative potential of the public in solving problems, enhance citizen engagement and public participation. Data on federal agency use of the Challenge.gov platform was paired with existing data on employee attitudes and organisational attributes over a five year period. Our results show that a range of managerial practices, including employee empowerment, and organisational characteristics predict the extent to which federal agencies use open innovation. We conclude with discussion of the implications for theory and practice.
The 1905 Relativity Paper and the "Light Quantum"
Year: 2013

In 1905 the well known physicist Max Planck was coeditor of the Annalen der Physik, and he accepted Einstein's paper on light quanta for publication, even though he disliked the idea of "light quanta" Einstein's relativity paper was received by the Annalen der Physik at the end of June 1905 and Planck was the first scientist to notice Einstein's relativity theory and to report favorably on it. In the 1905 relativity paper Einstein used a seemingly conventional notion, "light complex" and he did not invoke his novel quanta of light heuristic with respect to the principle of relativity. He chose the language "light complex" for which no clear definition could be given. But with hindsight, in 1905 Einstein made exactly the right choice not to mix concepts from his quantum paper with those from his relativity paper. He focused on the solution of his relativity problem, whose far reaching perspectives Planck already sensed.
Cobalt Based Catalyst Supported on Different Morphologies of Alumina for Non oxidative Propane Dehydrogenation: Effect of Metal Support Interaction and Lewis Acidic Sites
Venue: ChemCatChem
Year: 2019

Developing an economically viable and eco friendly catalyst is essential for the dehydrogenation reaction. In this context, cobalt based catalysts supported on different morphologies of g Al2O3, nano sheet (Al2O3 NS) nano fiber (Al2O3 NF) and nano plate (Al2O3 NP) were synthesized using wetness impregnation method and tested for non oxidative propane dehydrogenation reaction. Metal support interaction and Lewis acidic center play a crucial role in propane dehydrogenation reaction; therefore this study focuses on investigating the role of these parameters on the catalytic activity for cobalt based catalysts. A higher metal support interaction was observed in Co/Al2O3 NS as compared to Co/Al2O3 NF and Co/Al2O3 NP. The presence of tetrahedral coordinated Co+2 in Co/Al2O3 NS leads to higher selectivity towards propylene. The formation of metallic cobalt from Co3O4 precursor present in Co/Al2O3 NP promoted side reactions to form lower hydrocarbons and carbon, which caused catalyst deactivation. In situ DRIFTS analysis revealed the interaction of propane and propylene gases with the catalyst, which was an important revelation to find the source of carbon deposition.