Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort:
Hottest Latest Alphabetical (A-Z) Alphabetical (Z-A)
Type:
All Topic Review Biography
Topic Review
Variables to Assess Consumers towards E-Commerce
Changes in consumer behavior are driven by tastes and preferences that change over time as their socioeconomic conditions change. Evaluating online purchases in the retail sector requires considering various criteria. Researchers Kumar and Anjaly developed a scale to measure the experience of customers after the purchase, they validated an instrument made up of 35 items grouped into six dimensions: (a) delivery; (b) return and exchange; (c) customer support; (d) feel good; (e) benefits; and (f) product in hand, demonstrating that the customer experience during the online purchase process is multidimensional and that they prioritize the quality and speed of the service received.
  • 589
  • 29 Jan 2024
Topic Review
Variables Related to Environmental Sustainability
Scholars have been concerned about the achievement of ecological sustainability due to the rapid degradation of the natural world. This pursuit involves the examination of the current condition of the environment, the identification of factors contributing to this degradation, and the implementation of corrective measures aimed at achieving environmental sustainability goals.
  • 349
  • 14 Nov 2023
Topic Review
Variables Impact Healthcare Outcome Measures and Data Management
The rapid growth of technology, digitalization of health records, and unprecedented data management of healthcare information enable healthcare providers and researchers to assist in healthcare quality improvement and community health outcomes. Data management and potential variables affect the performance of healthcare measures. Data analytics enables healthcare providers and researchers to evaluate, monitor performance, and track healthcare quality across the continuum of patient care. The data type is an attribute of data that tells the aggregator or interpreter how the programmer intends to use the data.
  • 1.2K
  • 05 Jul 2022
Topic Review
Variable-Pitch Propeller
A variable-pitch propeller or controllable-pitch propeller (CPP) is a type of propeller with blades that can be rotated around their long axis to change the blade pitch. Reversible propellers—those where the pitch can be set to negative values—can also create reverse thrust for braking or going backwards without the need to change the direction of shaft revolution.
  • 2.7K
  • 23 Nov 2022
Topic Review
Variable Speed Diesel Generators
Variable Speed Diesel Generators (VSDGs)  is a solution to optimize engine consumption and increase system efficiency during different regimes. It improves system behavior by adapting diesel generators (DGs) speed with demanded mechanical load from the generator. VSDG improves efficiency, increases engine lifetime, reduces fuel consumption, and GHG emissions. Conventional fixed speed DG can rarely operate at less than 50% of the maximal load, while VSDGs can operate for a long period at low rotational speed to support lower loads.
  • 2.8K
  • 19 Jan 2022
Topic Review
Variable Combinations of Tridentate Ligands in Pt(η3-X3L)(PL) Derivatives
There are over fifty examples in which the inner coordination spheres about the Pt(II) atoms of the Pt(η3-X3L)(PL) type are formed by variable combinations of donor atoms of tridentate ligands. Each η3-ligand creates two metallocyclic rings. The complexes based on membered metallocyclic rings can be divided into four groups: 1. 6+6-Membered Metallocyclic Rings, 2. 6+5-Membered Metallocyclic Rings, 3. 5+6-Membered Metallocyclic Rings, and 4. 5+5-Membered Metallocyclic Rings.
  • 294
  • 18 Apr 2023
Topic Review
Variable Admittance Control for Human–Robot Interaction
Human–robot interaction (HRI) is a broad research topic, which is defined as understanding, designing, developing, and evaluating the robotic system to be used with or by humans. 
  • 1.4K
  • 26 Jul 2022
Topic Review
Variability of Vertical Wind Shear
Vertical wind shear is caused by a wind of different speed or direction over a relatively short distance in the atmosphere.
  • 562
  • 17 Jun 2021
Topic Review
Variability of H1N1pdm09 Influenza Viruses
The influenza virus is a worldwide disease that affects up to 5–15% of the global population. The mortality from influenza-associated respiratory disease is estimated to be more than half a million each year, and that number significantly increases when a new strain emerges to cause a pandemic. The influenza virus has a high mutation rate, which is the basis for the evolutionary variability of the influenza virus. One cycle of virus replication may lead to a new strain with significant changes in its viral biocharacteristics and pathogenicity.
  • 468
  • 17 Mar 2022
Topic Review
Varangian Guard
The Varangian Guard (Greek: Τάγμα τῶν Βαράγγων, Tágma tōn Varángōn) was an elite unit of the Byzantine Army, from the 10th to the 14th centuries, whose members served as personal bodyguards to the Byzantine Emperors. They are known for being primarily composed of Germanic peoples, specifically Norsemen from modern day Sweden (the Guard was formed approximately 200 years into the Viking Age) and Anglo-Saxons (after the Norman Conquest of England created an Anglo-Saxon diaspora, part of which found employment in Constantinople). The Rus' provided the earliest members of the Varangian Guard. They were in Byzantine service from as early as 874. The Guard was first formally constituted under Emperor Basil II in 988, following the Christianization of Kievan Rus' by Vladimir I of Kiev. Vladimir, who had recently usurped power in Kiev with an army of Varangian warriors, sent 6,000 men to Basil as part of a military assistance agreement. Basil's distrust of the native Byzantine guardsmen, whose loyalties often shifted, with fatal consequences, as well as the proven loyalty of the Varangians, many of whom had previously served in Byzantium, led the Emperor to employ them as his personal guardsmen. Immigrants from Sweden, Denmark , Norway and Iceland kept a predominantly Norse cast to the organization until the late 11th century. According to the late Swedish historian Alf Henrikson in his book Svensk Historia (History of Sweden), the Scandinavian Varangian guardsmen were recognized by long hair, a red ruby set in the left ear and ornamented dragons sewn on their chainmail shirts. In these years, Scandinavian men left to enlist in the Byzantine Varangian Guard in such numbers that a medieval Swedish law, Västergötlagen, from Västergötland declared no one could inherit while staying in "Greece"—the then Scandinavian term for the Byzantine Empire—to stop the emigration, especially as two other European courts simultaneously also recruited Scandinavians: Kievan Rus' c. 980–1060 and London 1018–1066 (the Þingalið). Composed primarily of Norsemen and Rus for the first 100 years, the Guard began to see increased numbers of Anglo-Saxons after the Norman conquest of England. By the time of the Emperor Alexios Komnenos in the late 11th century, the Varangian Guard was largely recruited from Anglo-Saxons and "others who had suffered at the hands of the Vikings and their cousins the Normans". The Anglo-Saxons and other Germanic peoples shared with the Vikings a tradition of faithful (to death if necessary) oath-bound service, and the Norman invasion of England resulted in many fighting men who had lost their lands and former masters and were looking for positions elsewhere. The Varangian Guard not only provided security for the Byzantine emperors, but also participated in many wars, often playing a decisive role, since they were usually deployed at critical moments of a battle. By the late 13th century, Varangians were mostly ethnically assimilated by the Byzantine Greeks, though the Guard remained in existence until at least mid-14th century. In 1400, there were still some people identifying themselves as "Varangians" in Constantinople.
  • 1.6K
  • 04 Nov 2022
  • Page
  • of
  • 5495
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of Social Sciences
Encyclopedia of COVID-19
Encyclopedia of Fungi
Encyclopedia of Digital Society, Industry 5.0 and Smart City
ScholarVision Creations
Feedback