3,339 research outputs found

    Cancer biomarker development from basic science to clinical practice

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    The amount of published literature on biomarkers has exponentially increased over the last two decades. Cancer biomarkers are molecules that are either part of tumour cells or secreted by tumour cells. Biomarkers can be used for diagnosing cancer (tumour versus normal and differentiation of subtypes), prognosticating patients (progression free survival and overall survival) and predicting response to therapy. However, very few biomarkers are currently used in clinical practice compared to the unprecedented discovery rate. Some of the examples are: carcino-embryonic antigen (CEA) for colon cancer; prostate specific antigen (PSA) for prostate; and estrogen receptor (ER), progesterone receptor (PR) and HER2 for breast cancer. Cancer biomarkers passes through a series of phases before they are used in clinical practice. First phase in biomarker development is identification of biomarkers which involve discovery, demonstration and qualification. This is followed by validation phase, which includes verification, prioritisation and initial validation. More large-scale and outcome-oriented validation studies expedite the clinical translation of biomarkers by providing a strong ‘evidence base’. The final phase in biomarker development is the routine clinical use of biomarker. In summary, careful identification of biomarkers and then validation in well-designed retrospective and prospective studies is a systematic strategy for developing clinically useful biomarkers

    CPEC: A TOOL FOR REGIONAL INTEGRATION AND LIBERAL INSTITUTIONALISM

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    oai:ojs2.margallapapers.edu.pk:article/2China-Pakistan Economic Corridor (CPEC) has been visualized by political scientists as a structural change in the balance of power of the world. The corridor has far-reaching economic and geopolitical impacts on Southwest Asian countries in general and Pakistan in particular. CPEC, being a transnational project, may face challenges in geographic as well as human terrain during its implementation phase. It would involve extra ordinary engineering resources to execute, massive funds to realize, and political acumen to manage social elements of Southwest Asian countries. This paper, therefore, explores China’s evolving relationship with the international system to achieve accelerated infrastructure development and boosted socio-economic growth through regional integration and liberal institutionalism. It is a multilateral strategy that will help Pakistan realize its true potential in the economic and strategic domains. It also endeavors to find linkages between China’s multilateralism with regional integration under the framework of CPEC based on liberal values of connectivity.   Bibliography Entry Ali, Asif. 2020. "CPEC: A Tool for Regional Integration and Liberal Institutionalism." Margalla Papers 24 (2): 1-15.

    Supersoluble groups of Wielandt length two

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    Exploiting peer group concept for adaptive and highly available services

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    This paper presents a prototype for redundant, highly available and fault tolerant peer to peer framework for data management. Peer to peer computing is gaining importance due to its flexible organization, lack of central authority, distribution of functionality to participating nodes and ability to utilize unused computational resources. Emergence of GRID computing has provided much needed infrastructure and administrative domain for peer to peer computing. The components of this framework exploit peer group concept to scope service and information search, arrange services and information in a coherent manner, provide selective redundancy and ensure availability in face of failure and high load conditions. A prototype system has been implemented using JXTA peer to peer technology and XML is used for service description and interfaces, allowing peers to communicate with services implemented in various platforms including web services and JINI services. It utilizes code mobility to achieve role interchange among services and ensure dynamic group membership. Security is ensured by using Public Key Infrastructure (PKI) to implement group level security policies for membership and service access.Comment: The Paper Consists of 5 pages, 6 figures submitted in Computing in High Energy and Nuclear Physics, 24-28 March 2003 La Jolla California. CHEP0

    Syncretic Architecture of Fatehpur Sikri: a Symbol of Composite Culture

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    The amalgamation of native Indians and Muslim immigrants eventuated in a prolific way in the realm of literature, art, music, technology and especially in architecture, which reached at its zenith during Mughal period. Akbar, the great Mughal, is greatly recognized for his syncretism and religious tolerance. With the power of his influential personality and eclectic approach, he unified the various artistic traditions and architectural styles in the design of his new capital city, Fatehpur Sikri. Although, the architectural forms and construction techniques involved in the design of city had already been incorporated since the arrival of Islam in Indian subcontinent, but their synthesis reached at its zenith at Fatehpur Sikri and thus traditionally rich and fanciful Indian style was merged with the lightness and simplicity of Islamic style. This paper will focus on the unique intermingling of two entirely different styles like their cultures which were born in different regions and with different approaches. This fusion developed a new style in architecture besides several other aspects of life in India

    Interpretation of Modified Electromagnetic Theory and Maxwell's Equations on the Basis of Charge Variation

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    Electromagnetic waves are the analytical solutions of Maxwell's equations that represent one of the most elegant and concise ways to state the fundamentals of electricity and magnetism. From them one can develop most of the working relationships in the electric and magnetic fields. Considering deeply the effect of charge variation in Maxwell’s equations for time varying electric and magnetic fields of charges in moving inertial frame, the magnitude of charge particles vary according to Asif’s equation of charge variation. Consequently the Maxwell’s equations give different results to an observer measuring at rest. This research paper explained the effect of charge variation in Classical Electromagnetic theory, Maxwell’s equations, Coulumb’s law, Lorentz force law when we are referring to any inertial frame.DOI:http://dx.doi.org/10.11591/ijece.v4i2.535

    Design and Code Optimization for Systems with Next-generation Racetrack Memories

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    With the rise of computationally expensive application domains such as machine learning, genomics, and fluids simulation, the quest for performance and energy-efficient computing has gained unprecedented momentum. The significant increase in computing and memory devices in modern systems has resulted in an unsustainable surge in energy consumption, a substantial portion of which is attributed to the memory system. The scaling of conventional memory technologies and their suitability for the next-generation system is also questionable. This has led to the emergence and rise of nonvolatile memory ( NVM ) technologies. Today, in different development stages, several NVM technologies are competing for their rapid access to the market. Racetrack memory ( RTM ) is one such nonvolatile memory technology that promises SRAM -comparable latency, reduced energy consumption, and unprecedented density compared to other technologies. However, racetrack memory ( RTM ) is sequential in nature, i.e., data in an RTM cell needs to be shifted to an access port before it can be accessed. These shift operations incur performance and energy penalties. An ideal RTM , requiring at most one shift per access, can easily outperform SRAM . However, in the worst-cast shifting scenario, RTM can be an order of magnitude slower than SRAM . This thesis presents an overview of the RTM device physics, its evolution, strengths and challenges, and its application in the memory subsystem. We develop tools that allow the programmability and modeling of RTM -based systems. For shifts minimization, we propose a set of techniques including optimal, near-optimal, and evolutionary algorithms for efficient scalar and instruction placement in RTMs . For array accesses, we explore schedule and layout transformations that eliminate the longer overhead shifts in RTMs . We present an automatic compilation framework that analyzes static control flow programs and transforms the loop traversal order and memory layout to maximize accesses to consecutive RTM locations and minimize shifts. We develop a simulation framework called RTSim that models various RTM parameters and enables accurate architectural level simulation. Finally, to demonstrate the RTM potential in non-Von-Neumann in-memory computing paradigms, we exploit its device attributes to implement logic and arithmetic operations. As a concrete use-case, we implement an entire hyperdimensional computing framework in RTM to accelerate the language recognition problem. Our evaluation shows considerable performance and energy improvements compared to conventional Von-Neumann models and state-of-the-art accelerators
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