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Chief Justice of Pakistan
The chief justice of Pakistan (Urdu: منصف اعظم پاکستان) (initials as CJP) is the head of the court system of Pakistan (the judicature branch of government) and the chief judge of the Supreme Court of Pakistan. The officeholder is the senior most of 17 senior justices of the Supreme Court of Pakistan. The Federal Court of Pakistan was established by Governor-General Jinnah's Order in February 1948. Until 1956, the chief justice and senior justices were known by the title of 'Federal Judge', and the Federal Court of Pakistan operated out of a wing of the Lahore High Court, despite the federal capital's location in Karachi. The enactment of Pakistan's first constitution in March 1956 redesigned it as the 'Supreme Court of Pakistan.' The chief justice is the chief administrative officer of the country's court system and the highest judicial officer, ranking immediately above the chief justice of the Federal Shariat Court, and is responsible for supervising federal judicial policies, and conducting judicial business in the Supreme Court. Nomination for the appointment of the chief justice is made by the prime minister of Pakistan, and final appointments are confirmed by the president of Pakistan. Presiding over the oral arguments before the court, the chief justice has significant agenda-setting power over meetings of the Supreme Court. In modern tradition[clarification needed], the chief justice has the ceremonial duty of administering the oath of office of the president of Pakistan. The first chief justice was Sir Abdul Rashid. The current chief justice is Umar Ata Bandial; incumbent since 2 February 2022.
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  • 21 Nov 2022
Topic Review
Liquid Metal Embrittlement
Liquid metal embrittlement, also known as liquid metal induced embrittlement, is a phenomenon of practical importance, where certain ductile metals experience drastic loss in tensile ductility or undergo brittle fracture when exposed to specific liquid metals. Generally, a tensile stress, either externally applied or internally present, is needed to induce embrittlement. Exceptions to this rule have been observed, as in the case of aluminium in the presence of liquid gallium. This phenomenon has been studied since the beginning of the 20th century. Many of its phenomenological characteristics are known and several mechanisms have been proposed to explain it. The practical significance of liquid metal embrittlement is revealed by the observation that several steels experience ductility losses and cracking during hot-dip galvanizing or during subsequent fabrication. Cracking can occur catastrophically and very high crack growth rates have been measured. Similar metal embrittlement effects can be observed even in the solid state, when one of the metals is brought close to its melting point; e.g. cadmium-coated parts operating at high temperature. This phenomenon is known as solid metal embrittlement.
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  • 21 Nov 2022
Topic Review
Information Assurance
Information assurance (IA) is the practice of assuring information and managing risks related to the use, processing, storage, and transmission of information. Information assurance includes protection of the integrity, availability, authenticity, non-repudiation and confidentiality of user data. IA encompasses not only digital protections but also physical techniques. These protections apply to data in transit, both physical and electronic forms, as well as data at rest . IA is best thought of as a superset of information security (i.e. umbrella term), and as the business outcome of information risk management.
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  • 21 Nov 2022
Topic Review
Maya Script
Maya script, also known as Maya glyphs, was the writing system of the Maya civilization of Mesoamerica and is the only Mesoamerican writing system that has been substantially deciphered. The earliest inscriptions found which are identifiably Maya date to the 3rd century BCE in San Bartolo, Guatemala. Maya writing was in continuous use throughout Mesoamerica until the Spanish conquest of the Maya in the 16th and 17th centuries. Maya writing used logograms complemented with a set of syllabic glyphs, somewhat similar in function to modern Japanese writing. Maya writing was mistakenly called "hieroglyphics" or hieroglyphs by early European explorers of the 18th and 19th centuries who found its general appearance reminiscent of Egyptian hieroglyphs, although the two systems are unrelated. Modern Mayan languages are written using the Latin alphabet rather than Maya script.
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  • 21 Nov 2022
Topic Review
Torino Scale
The Torino scale is a method for categorizing the impact hazard associated with near-Earth objects (NEOs) such as asteroids and comets. It is intended as a communication tool for astronomers and the public to assess the seriousness of collision predictions, by combining probability statistics and known kinetic damage potentials into a single threat value. The Palermo Technical Impact Hazard Scale is a similar, but more complex scale. Near-Earth objects with a Torino scale of 1 pop up every couple of months or so and may last a few weeks until they have a longer observation arc.
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  • 21 Nov 2022
Topic Review
Windows Defender
Microsoft Defender (known as Windows Defender before Windows 10 November 2019 Update or Windows Defender Antivirus in Windows 10 Creators Update and later) is an anti-malware component of Microsoft Windows. It was first released as a downloadable free anti-spyware program for Windows XP, and was later shipped with Windows Vista and Windows 7. It has evolved into a full antivirus program, replacing Microsoft Security Essentials as part of Windows 8 and later versions.
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  • 22 Nov 2022
Topic Review
Legal Case Management
The terms legal case management (LCM), matter management or legal project management refer to a subset of law practice management and cover a range of approaches and technologies used by law firms and courts to leverage knowledge and methodologies for managing the life cycle of a case or matter more effectively. Generally, the terms refer to the sophisticated information management and workflow practices that are tailored to meet the legal field's specific needs and requirements. As attorneys and law firms compete for clients they are routinely challenged to deliver services at lower costs with greater efficiency, thus firms develop practice-specific processes and utilize contemporary technologies to assist in meeting such challenges. Law practice management processes and technologies include case and matter management, time and billing, litigation support, research, communication and collaboration, data mining and modeling, and data security, storage, and archive accessibility.
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  • 21 Nov 2022
Topic Review
Homophile
The words homophile and homophilia are dated terms for homosexuality. The use of the word began to disappear with the emergence of the gay liberation movement of the late 1960s and early 1970s, replaced by a new set of terminology such as gay, lesbian, and bisexual.
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  • 21 Nov 2022
Topic Review
Medicine Lake Volcano
Medicine Lake Volcano is a large shield volcano in northeastern California about 30 mi (50 km) northeast of Mount Shasta. The volcano is located in a zone of east-west crustal extension east of the main axis of the Cascade Volcanic Arc and the Cascade Range. The 0.6 mi (1 km) thick shield is 22 mi (35 km) from east to west and 28 to 31 mi (45 to 50 km) from north to south, and covers more than 770 sq mi (2,000 km2). The underlying rock has downwarped by 0.3 mi (0.5 km) under the center of the volcano. The volcano is primarily composed of basalt and basaltic andesite lava flows, and has a 4.3 by 7.5 mi (7 by 12 km) caldera at the center. The Medicine Lake shield rises about 3,900 ft (1,200 m) above the Modoc Plateau to an elevation of 7,795 ft (2,376 m). Lavas from Medicine Lake Volcano are estimated to be at least 140 cu mi (600 km3) in volume, making Medicine Lake the largest volcano by volume in the Cascade Range (Newberry Volcano in Oregon has the second largest volume). Lava Beds National Monument lies on the northeast flank of the volcano. Medicine Lake Volcano has been active for 500,000 years. The eruptions were gentle rather than explosive like Mount St. Helens, coating the volcano's sides with flow after flow of basaltic lava. Medicine Lake is part of the old caldera, a bowl-shaped depression in the mountain. It is believed that the Medicine Lake volcano is unique, having many small magma chambers rather than one large one.
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Topic Review
Evolution of the Vitamin D Receptor
The evolution of the vitamin D receptor started millions of years ago, with earliest evidence of the receptor in existing organisms tracing back to the sea lamprey (Petromyzon marinus). The vitamin D receptor is an example of a nuclear receptor, which binds vitamin D, and modulates the transcription of various target genes appropriately. Early in the history of life on Earth, nuclear receptors would have been selected for due to the strong pressure for organisms to respond to their environment. This eventually lead to the evolution of nuclear receptor families, such as the NR1H and NR1I families, capable of binding nutritional ligands and modulating transcription appropriately. Each of these families host a variety of receptors, including the vitamin D receptor, but all are thought to have originated from one ancestral receptor. Through major gene duplications and variable selective pressures, the various receptors within these families evolved, each one accommodating cholesterol derivatives, such as oxysterols, bile acids, and vitamin D.
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