McShane-type Identities for Affine Deformations

We derive an identity for Margulis invariants of affine deformations of a complete orientable one-ended hyperbolic sur- face following the identities of McShane, Mirzakhani and Tan- Wong-Zhang. As a corollary, a deformation of the surface which infinitesimally lengthens all interior simple closed curves must in- finitesimally lengthen the boundary.Comment: resubmitted after error revising another submissio

From Balancing to Bandwagoning: Evaluating the Impact of the Sanction Regime on North Korea–Africa Relationships

Purpose—The DPRK has maintained an extensive array of foreign relationships over the past decades, both for political and economic gains. This article evaluates the impact of the current sanction regime on the DPRK’s activities with African countries. Design/Methodology/Approach—The analysis is conducted by using a bespoke behavior framework based on Stephen Walt’s “balance of threat” theory. This framework develops the concepts of balancing, defensive bandwagoning, and opportunistic bandwagoning as potential behaviors of African states following the imposition of United Nations Security Council Resolutions to sanction North Korea from 2006 until 2017. Findings—Evidence suggests that some long- standing relationships based on military and economic cooperation have been severed in recent years; thus, it supports a general balancing behavior. Findings also suggest that a specific group of countries subscribe to new opportunistic and defensive bandwagoning by embarking on talks and partnerships in the fields of health and science, regardless of the sanction regime, signaling defiance against Western- led world order

Defining dyadic cost and risk in international trade: a review of incoterms 2000 with strategic implications

As trade markets continue to expand due to developments in transportation and logistics technologies, distribution networks extend well beyond national frontiers. With obstacles such as distance, language, and business customs, allocation of legal responsibility between a buyer and a seller of goods becomes even more crucial in international commerce. This document is presented in three general sections. Reviewing the basics, including definition, origin, use and classifications of INCOTERMS constitutes the first section. The second section describes and analyzes the differences between each of the 13 INCOTERMS 2000. Lastly, the changes introduced by the 2000 revision are studied in more detail in section three and implications are proffered

The von Economo neurons in frontoinsular and anterior cingulate cortex in great apes and humans

The von Economo neurons (VENs) are large bipolar neurons located in frontoinsular (FI) and anterior cingulate cortex in great apes and humans, but not other primates. We performed stereological counts of the VENs in FI and LA (limbic anterior, a component of anterior cingulate cortex) in great apes and in humans. The VENs are more numerous in humans than in apes, although one gorilla approached the lower end of the human range. We also examined the ontological development of the VENs in FI and LA in humans. The VENs first appear in small numbers in the 36th week post-conception, are rare at birth, and increase in number during the first 8 months after birth. There are significantly more VENs in the right hemisphere than in the left in FI and LA in postnatal brains of apes and humans. This asymmetry in VEN numbers may be related to asymmetries in the autonomic nervous system. The activity of the inferior anterior insula, which contains FI, is related to physiological changes in the body, decision-making, error recognition, and awareness. The VENs appear to be projection neurons, although their targets are unknown. We made a preliminary study of the connections of FI cortex based on diffusion tensor imaging in the brain of a gorilla. The VEN-containing regions connect to the frontal pole as well as to other parts of frontal and insular cortex, the septum, and the amygdala. It is likely that the VENs in FI are projecting to some or all of these structures and relaying information related to autonomic control, decision-making, or awareness. The VENs selectively express the bombesin peptides neuromedin B (NMB) and gastrin releasing peptide (GRP) which are also expressed in another population of closely related neurons, the fork cells. NMB and GRP signal satiety. The genes for NMB and GRP are expressed selectively in small populations of neurons in the insular cortex in mice. These populations may be related to the VEN and fork cells and may be involved in the regulation of appetite. The loss of these cells may be related to the loss of satiety signaling in patients with frontotemporal dementia who have damage to FI. The VENs and fork cells may be morphological specializations of an ancient population of neurons involved in the control of appetite present in the insular cortex in all mammals. We found that the protein encoded by the gene DISC1 (disrupted in schizophrenia) is preferentially expressed by the VENs. DISC1 has undergone rapid evolutionary change in the line leading to humans, and since it suppresses dendritic branching it may be involved in the distinctive VEN morphology