There has been great focus in the recent trade theory literature on the introduction of firm heterogeneity into trade models. This introduction has highlighted the importance of the entry/exit decision of firms in response to changes in trade barriers. However, it is typical in many of these models to use iceberg transport costs as a general form of trade barriers that can be interchangeable wi...

One of the main objectives of the Transition Radiation Detector (TRD) at LHC at CERN is to provide electron/pion identification for pt > 1GeV/c. The separation of electrons is based on ionization dE/dx and TR production and detection. We have improved the electron identification by better considering the contributions of ionization and TR production on the dE/dx measurements. The TRD detector d...

The HIV infection supported the re-emergence of TB as well as two major changes in the natural history of TB, namely it has increased the frequency of extrapulmonary TB and the mycobac‐ terial multidrug resistance. The extrapulmonary TB involvement is present in up to 40% of the HIV cases and includes respiratory, digestive, lymphatic and neurologic localizations. Of these neurotuberculosis (NT...

Abstract International transport costs do have an additive part. How large is it? Does it matter? This article provides new answers to these questions. Using information contained in the US imports flows from 1974 2019, we develop empirical model that disentangles ad-valorem and components of international costs. The per-unit component represents a sizeable share total costs, between 30% 45% de...

BACKGROUND The Moso bamboo (Phyllostachys edulis) is one of the most important forestry resources and plays essential ecological roles in southern China. A draft nuclear genome sequence is expected to be publicly available in the near future; an explosion of gene expression data related to the unique traits of Moso bamboo will undoubtedly follow. Reverse transcription quantitative real-time PCR...

2B4 (CD244) and NK-T-B-antigen (NTB-A, CD352) are activating receptors on human natural killer (NK) cells and belong to the family of signaling lymphocyte activation molecule (SLAM)-related receptors (SRR). Engagement of these receptors leads to phosphorylation of their cytoplasmic tails and recruitment of the adapter proteins SLAM-associated protein (SAP) and Ewing's sarcoma-activated transcri...

There are four principles in the analysis of tax incidence: 1. The entire burden of a tax must be traced to individuals. Businesses may remit taxes, but only individuals–shareholders, employees, customers–can bear the burden of taxes. 2. The ultimate distribution of the tax burden may di¤er from the statutory liability; that is, the tax burden may be shifted because prices change. 3. The long r...

Upon TCR restimulation, activated, cycling T cells can undergo a self-regulatory form of apoptosis known as restimulation-induced cell death (RICD). We previously demonstrated that RICD is impaired in T cells from patients with X-linked lymphoproliferative disease, which lack SLAM-associated protein (SAP) expression. Both SAP and the specific SLAM receptor NK, T, and B cell Ag (NTB-A) are requi...

In this paper, we revisit the evidence on effects of time spent border-crossing procedures for international trade using a theory-consistent structural gravity model. We exploit rich panel dataset including domestic flows and employ recent econometric estimator that exhibits favorable asymptotic properties inference. The results indicate significant negative effect required border is driven by ...