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Getting the Most Out of Every Training Day: The Influence of Instructors on Self-Regulated Learning During Firefighter Leadership Courses

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International Journal of Disaster Risk Science 2024年第3期15卷 332-345页

作者： Stefan R?seler Micha hilbert Guido Hertel Meinald T.Thielsch Department of Psychology University of Münster

Leadership courses in the fire services are highly challenging, and they can seriously exhaust trainees and hamper their selfregulated learning efforts(for example, setting goals, focusing attention, seeking feedback). We theorize that experiences of failure or overload can curtail trainees' available energy resources on subsequent training days, which, in turn, should affect trainees' learning efforts. Given instructors' central role in leadership courses, we hypothesize that supportive and humble instructor behaviors decrease experiences of failure and overload and, thus, increase self-regulated learning. Moreover, we argue that supportive instructor behavior may amplify the positive effects of high energy resources, while humble behavior may alleviate the negative impact of low resource levels. We tested preregistered hypotheses with 118 firefighters participating in two-week leadership courses at a German fire academy. The participants completed short web-based questionnaires before and after classes each day. Multilevel analyses confirmed that perceived daily supportive and humble instructor behavior predicted trainees' reports of daily self-regulated learning activity. Notably, this effect was independent from positive effects of trainees' reported energy resources in the morning. Supportive and humble behavior did not moderate the eff ect of energy resources. Our findings suggest that instructors play a crucial role in facilitating effective learning under challenging training conditions. Furthermore, we offer implications for leaders in fire services, who often conduct trainings with their subordinates.

关键词： Diary study Fire services Instructor behavior Leadership training Resource investment

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RBSDEs with optional barriers:monotone approximation

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Probability, Uncertainty and Quantitative Risk 2022年第2期7卷 67-84页

作者： Siham Bouhadou Astrid hilbert Youssef Ouknine Department of Mathematics Faculty of Sciences SemlaliaCadi Ayyad UniversityBd.Prince My AbdellahB.P.239040000 MarrakechMorocco Department of Mathematics Linnaeus UniversityVaxjo 35195Sweden Africa Business School Mohammed VI Polytechnic UniversityLot 660Hay Moulay Rachid Ben Guerir43150Morocco

In this short note we consider reflected backward stochastic differential equations(RBSDEs)with a Lipschitz driver and barrier processes that are optional and right lower *** this case,the barrier is represented as a nondecreasing limit of right continuous with left limit(RCLL)*** combine some well-known existence results for RCLL barriers with comparison arguments for the control process to construct ***,we highlight the connection of these RBSDEs with standard RCLL BSDEs.

关键词： Reflected backward stochastic differential equation g-expectation Optional barrier Monotone approximation Comparison principle

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Optimal stopping in predictable setting

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Probability, Uncertainty and Quantitative Risk 2023年第4期8卷 485-498页

作者： Siham Bouhadou Astrid hilbert Youssef Ouknine Department of Mathematics Faculty of Sciences SemlaliaCadi Ayyad UniversityBd.Prince My AbdellahB.P.239040000 MarrakechMorocco Department of Mathematics Linnaeus UniversityB2051Hus BVäxjöSweden Mohammed VI Polytechnic University Hay Moulay Rachid Ben Guerir43150Morocco

In this study,we delve into the optimal stopping problem by examining the p(ϕ(τ),τ∈T_(0)^(p))case in which the reward is given by a family of nonnegative random variables indexed by predictable stopping *** aim to elucidate various properties of the value function family within this *** prove the existence of an optimal predictable stopping time,subject to specific assumptions regarding the reward functionϕ.

关键词： Optimal stopping Supermartingale Predictable stopping time Admissible family Reward

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Treatment of metastatic colorectal carcinomas by systemic inhibition of vascular endothelial growth factor signaling in mice

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World Journal of Gastroenterology 2005年第28期11卷 4332-4336页

作者： Volker Schmitz Miroslaw Kornek Tobias hilbert Christian Dzienisowicz Esbher Raskopf Christian Rabe Tilman Sauerbruch Cheng Qian Wolfgang H Caselmann Medizinische Klinik und Poliklinik I Universitatsklinikum BonnGermany Universidad de Navarra Clinica Universitaria Pamplona Spain Bavarian State Ministry of the Environment Public Health and Consumer Protection Munich 81901 Germany

AIM： Tumor angiogenesis has been shown to be promoted by vascular endothelial growth factor （VEGF） via stimulating endothelial cell proliferation, migration, and survival. Blockade of VEGF signaling by different means has been demonstrated to result in reduced tumor growth and suppression of tumor angiogenesis in distinct tumor entities. Here, we tested a recombinant adenovirus, AdsFItl-3, that encodes an antagonistically acting fragment of the VEGF receptor 1 （Fit-l）, for systemic antitumor effects in pre-established subcutaneous CRC tumors in mice.METHODS： Murine colorectal carcinoma cells （CT26） were inoculated subcutaneously into Balb/c mice for in vivo studies. Tumor size and survival were determined. 293 cell line was used for propagation of the adenoviral vectors. Human lung cancer line A549 and human umbilical vein endothelial cells were transfected for in vitro experiments.RESULTS： Infection of tumor cells with AdsFlt1-3 resulted in protein secretion into cell supernatant, demonstrating correct vector function. As expected, the secreted sFlt1-3 protein had no direct effect on CT26 tumor cell proliferation in vitro, but endothelial cell function was inhibited by about 46% as compared to the AdLacZ control in a tube formation assay. When AdsFlt1-3 （5×10^9 PFU/animal） was applied to tumor bearing mice, we found a tumor inhibition by 72% at d 12 after treatment initiation, in spite of these antitumoral effects, the survival time was not improved. According to reduced intratumoral microvessel density in AdsFlt1-3-treated mice, the antitumor mechanism can be attributed to angiostatic vector effects. We did not detect increased systemic VEGF levels after AdsFlt1-3 treatment and liver toxicity was low as judged by serum alanine aminotransferase determination.CONCLUSION： In this study we confirmed the value of a systemic administration of AdsFItl-3 to block VEGF signaling as antitumor therapy in an experimental metastatic colorectal carcinoma model in mice.

关键词： Colorectal carcinomas Vascular endothelial growth factor Systemic inhibition

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最新GMAT考试指南 [影印版]

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2009年

作者： Eugene D. Jaffe Stephen hilbert

本书为新GMAT模拟测试题。全面的真题再现，对GMAT试题进行了分类再现和详解，为考生提供了在相对短时间内顺利通过考试、快速提高GMAT成绩的方法。

ISBN: (纸本)9787030245601

本书为新GMAT模拟测试题。全面的真题再现，对GMAT试题进行了分类再现和详解，为考生提供了在相对短时间内顺利通过考试、快速提高GMAT成绩的方法。

关键词：研究生英语入学考试自学参考资料美国

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The Effect of Signal Propagation Delay on the Measured Vibration in Planetary Gearboxes

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Journal of Dynamics, Monitoring and Diagnostics 2022年第1期1卷 9-18页

作者： Marc hilbert Wade A.Smith Robert B.Randall LIACS Leiden UniversityRapenburg 702311 EZLeidenThe Netherlands School of Mechanical and Manufacturing Engineering University of New South WalesUNSWSydneyNSW2052Australia

Modulation of the gear mesh vibration is a major field of research for the condition monitoring of planetary *** modulation creates sidebands around the gearmesh frequency in the vibration spectrum,and the distribution of these sidebands has been researched in numerous *** publications on the subject assume that the effect of the time varying signal propagation delay between the main vibration source–the gear mesh point(s)–and the(usually fixed)transducer can be *** paper investigates the validity of this *** do so,a planetary gearbox with a transducer mounted on the(fixed)ring gear is studied,and the effect of the propagation delay is modelled as a phase modulation of the gear mesh *** expressions are then derived for the distribution and strength of the modulation sidebands,and these expressions are applied to quantify the effect of the propagation delay on five industrial *** results show that the amplitude of the sidebands is negligible and would not interfere with condition assessment based on analysis of the modulation of the gear mesh frequency,and thus the propagation delay can be neglected for practical purposes.

关键词： gear diagnostics phase modulation planetary gearbox propagation delay

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A new Pulse Delta-Sigma CO2 NDIR Gas Detector

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Optics and Photonics Journal 2016年第8期6卷 219-225页

作者： Steven Z. Y. Shen Chi-Feng Chen hilbert C. S. Shen Department of Optics and Photonics National Central University Taiwan

This work describes the implementation and the modeling of an infrared gas sensor with pulse delta-sigma sensing architecture. Beyond the conventional technique of constant periodic heating of infrared light source, our proposed delta-sigma architecture with closed-loop feedback system is built with the hybrid combination of a CO2 infrared sensor with a specific wavelength filter, an infrared MEMS heater, a chopper amplifier, threshold comparator, ARM based MPU and discrete electronic devices. After a modeling of system, we built a model for the description of relationship between gas concentration and sensor by the duty of heating. The measurement results show a good linear behavior of signal and it proves to be a practical for all the NDIR measuring techniques and this work also gives a new approach not only to measure gas concentration fast but also obtain the high resolution.

关键词： Carbon Dioxide Delta-Sigma Gas Sensor NDIR Sensitivity

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炼锌过程中锗作为副产品回收——锗循环液对电解锌生产的影响及其消除方法

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中国有色冶金 1983年第9期 40-43页

作者： Fritz hilbert ,朱水波

奥地利BBU公司经营的阿诺尔德施泰因炼锌厂(Zinkhuette Arnoldstein),大部份矿石来自自己的矿山,这种矿物含锗0.02%(见表1)。矿石经焙烧后,产出的焙砂用硫酸处理,所得的硫酸锌溶液必须经过净化,用氢氧化铁沉淀吸附和用锌粉置换可除去Ge... 详细信息

奥地利BBU公司经营的阿诺尔德施泰因炼锌厂(Zinkhuette Arnoldstein),大部份矿石来自自己的矿山,这种矿物含锗0.02%(见表1)。矿石经焙烧后,产出的焙砂用硫酸处理,所得的硫酸锌溶液必须经过净化,用氢氧化铁沉淀吸附和用锌粉置换可除去Ge、Co、Ni、Sb、Tl、As、Fe、Cd和Cu,然后用电解法制得电锌。

关键词：循环液单宁工业试验鞣酸类物电解液电流效率电解锌熔炼炼锌

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遭受羞辱之后

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少年文摘 2006年第6期 48-49页

作者： Mary hilbert 日月明

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用楔传动的模具

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模具通讯 1979年第2期 98-108页

作者： L.hilbert 张正修

用楔传动的模具在现代的大量生产中不采用已不可想象。楔传动在所有类型的模具中都会遇到,不管是冲裁模或者是成形模都有采用。因楔传动能改变动作方向,它不仅用于连续模、连续复合模、多工位压力机用模具上,也有用在汽车车身复盖件压... 详细信息

用楔传动的模具在现代的大量生产中不采用已不可想象。楔传动在所有类型的模具中都会遇到,不管是冲裁模或者是成形模都有采用。因楔传动能改变动作方向,它不仅用于连续模、连续复合模、多工位压力机用模具上,也有用在汽车车身复盖件压制的大型单冲模具上,也有用作传送自动线的传动机构的。现就这种模具结构的见解和实例介绍如下。

关键词：滑板部件导轨冲孔孔加工导向机构压料板冲裁凹模模具

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