Method of Studying Λb0\Lambda_b^0 decays with one missing particle

A new technique is discussed that can be applied to $\Lambda_b^0$ baryon decays where decays with one missing particle can be discerned from background and their branching fractions determined, along with other properties of the decays. Applications include measurements of the CKM elements $|V_{ub}|$ and $|V_{cb}|$, selected charmless decays, and detection of any exotic objects coupling to $b\to s$ decays, such as the inflaton.Comment: 6 pages, 2 figures, updated for referees comments on July 16, 201

Generators of simple modular Lie superalgebras

Let $X$ be one of the finite-dimensional simple graded Lie superalgebras of Cartan type $W, S, H, K, HO, KO, SHO$ or $SKO$ over an algebraically closed field of characteristic $p>3$. In this paper we prove that $X$ can be generated by one element except the ones of type $W,$ $HO$, $KO$ or $SKO$ in certain exceptional cases, in which $X$ can be generated by two elements. As a subsidiary result, we also prove that certain classical Lie superalgebras or their relatives can be generated by one or two elements

Land-use change simulation and assessment of driving factors in the loess hilly region - a case study as Pengyang County

The main objective of this study is to evaluate the land-use change and its relationship with its driving factors in the loess hilly region. In this study, a case study was carried out in Pengyang County. We set two land-use demand scenarios (a baseline scenario (scenario 1) and a real land-use requirement scenario (scenario 2)) during year 2001-2005 via assuming the effect of driving factors on land-use change keeps stable from 1993 to 2005. Two simulated land-use patterns of 2005 are therefore achieved accordingly by use of the conversion of land use and its effects model at small regional extent. Kappa analyses are conducted to compare each simulated land-use pattern with the reality. Results show that (1) the associated kappa values were decreased from 0.83 in 1993-2000 to 0.27 (in scenario 1) and 0.23 (in scenario 2) in 2001-2005 and (2) forest and grassland were the land-use types with highest commission errors, which implies that conversion of both the land-use types mentioned above is the main determinant of change of kappa values. Our study indicates the land-use change was driven by the synthetic multiply factors including natural and social-economic factors (e.g., slope, aspect, elevation, distance to road, soil types, and population dense) in 1993-2000 until "Grain for Green Project" was implemented and has become the dominant factor in 2001-2005

Efficacy of imatinib mesylate in combination with radiotherapy in acute leukemia, and the effect on immune function

Purpose: To evaluate the clinical efficacy of imatinib mesylate plus radiotherapy for the treatment of acute leukemia and its effect on immune function.Methods: A retrospective study was conducted on 88 patients with acute leukemia admitted to Zhuji Affiliated Hospital of Shaoxing University between July 2017 and July 2021. They were assigned (randomly, 1:1)  to a control group (radiotherapy) or a study group (imatinib mesylate plus radiotherapy) according to different treatment regimens. Outcome measures assessed included the clinical efficacy of the treatments in the patients and their immune functions.Results: The two groups did not show any significant differences with regard to general patient profiles. After treatment, both groups presented reduced white blood cell (WBC) and platelet count (PLT) and elevated red blood cells count (RBC). The level of hemoglobin (Hb) level showed a slight decline in the control group but a significant increase in the study group (p < 0.05). The study group showed better improvement in the levels of WBC, PLT, RBC, and Hb than the control group (p < 0.05). The absolute values of peripheral blood mature neutrophils decreased in both groups after treatment, down to the lowest level at week 2, but rebounded, with higher absolute values in the study group at weeks 2, 3, and 4 of treatment (p < 0.05). Imatinib mesylate plus radiotherapy was associated with higher efficacy, compared with radiotherapy alone (p < 0.05).Conclusion: Radiotherapy plus imatinib mesylate effectively enhances the immune functions of acute leukemia patients, mitigates inflammatory responses, alleviates clinical symptoms, and boosts clinical efficacy. Further clinical trials are, however, required prior to general application in clinical practice