Since the early 1980s, graph theory has been a favorite topic for undergraduate research due to its accessibility and breadth of applications. By the early 1990s, knot theory was recognized as another such area of mathematics, in large part due to C. Adams’ text, The Knot Book. In this paper, we discuss the intersection of these two fields and provide a survey of current work in this area, much...

Behavioral research and analysis is prone to both error and bias, particularly in the early stages of a discipline, in part because it is widely (and erroneously) believed that “behavior” is rather simple and can be easily described or quantifi ed. However, since the 1970s for terrestrial animals, and since the late 1990s for marine mammals, systematic protocols of data gathering and ever more ...

Knowledge Management (KM) has been developed since the early 1990s by both researchers and practitioners. It is not surprising to KM researchers that the relationship between Knowledge Management (KM) and Cross-Cultural Management (CCM) started to be widely studied, since globalization has become a keen interest in every study on management. As such, we looked into this relationship, and recogn...

The first assessment of the status dormice in Latvia, with emphasis on their distribution, was made 1993. In accordance methodology used within LIFE-IP LatViaNature project (2020–2028), to set favourable reference values (FRVs) for species range and population, early 1990s chosen as baseline evaluating population trends listed Habitats Directive, this a socio-economic turning point country. nex...

Abstract In this study, we reveal a marked enhanced impact of the early-spring Aleutian Low (AL) on following winter El Niño and Southern Oscillation (ENSO) after late-1990s. This AL may have an important contribution to increased emergence central Pacific ENSO during recent decades. After late-1990s, decrease (increase) in strength tends induce anomalous cyclone (anticyclone) over subtropical ...

Astrocytic dysfunction is implicated in epilepsy through many proposed molecular mechanisms, but there is also a clinicopathologic entity of epilepsy featuring astrocytic inclusions. At least 17 cases of early-onset epilepsy with eosinophilic, hyaline astrocytic inclusions have been reported since the early 1990s. Most of these cases also involve developmental delay. The diagnosis is made by ne...

Out of the total population of Sri Lanka, the Muslim community constitutes about 8%, while the Buddhist majority makes up 69,1%. Still, the Sri Lanka Muslim Congress, a Muslim political party, has been a significant player in the Sri Lankan political arena since the early 1990s. This article explores how they managed to gain support as quickly as they did, from the early 1980s to the present, a...

In this study, the effects of 99Tc discharges from Sellafield to the Irish Sea on activity concentrations in fish and shellfish landed at ports on the north-east coast of Ireland and the resultant committed effective doses to typical and heavy consumers of seafood since 1990 are presented. Technetium99 activity concentrations in fish and shellfish from the Irish Sea increased in the mid-1990s i...

Concern has been rising about the health of the U.S. commercial real estate market and any impact it may have on financial markets and institutions. It is too early to judge the full extent of any problems, but commercial real estate financing has been shaken by the financial market turmoil associated with recent residential mortgage defaults. The spreads of commercial mortgage-backed securitie...

Korea has industrialized since the 1970s. Pneumoconiosis in coal miners was the most common occupational disease in the 1970s to 1980s. With the industrialization, the use of many chemicals have increased since the 1970s. As a consequence, there were outbreaks of occupational diseases caused by poisonous chemicals, such as heavy metal poisoning, solvent poisoning and occupational asthma in the ...