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Reviewing the Chinese-Specific Reference Amounts Study Conducted by Sun et al.,2022

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China CDC weekly 2023年第34期5卷 763-765页

作者： W.Marty blom Joost Westerhout Geert F.Houben Department RAPID The Netherlands Organisation for Applied Scientific Research(TNO)Utrechtthe Netherlands.

The need for region-specific food intake values to accurately estimate food allergen risk is underscored by the recent Ad Hoc Joint Food and Agriculture Organization/World Health Organization(FAO/WHO)Expert Consultation on Risk Assessment of Food Allergens(1).A recent study published by Sun et *** China CDC Weekly 2022,titled A Chinese-Specific Reference Amounts Study with TNO Food Allergen Risk Assessment Models—China,2022,critically examines and applies a previously established sensitivity analysis aimed at deriving food intake values for food allergen risk assessment(RA)(2–3).In their examination of Chinese food consumption data,the authors find that“the 95th–99th percentiles of the food consumption distribution per eating occasion for condiments and chocolates are the optimal point estimates for use in deterministic allergen RA,aiming to protect 99%of allergic individuals from allergic reactions due to unintended peanut presence.”

关键词： al. intake allergic

Quantification of the morphological transition in cadmium selenide nanocrystals as a function of reaction temperature

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Frontiers of Materials Science 2016年第1期10卷 8-14页

作者： Michael Tanner CAMERON Jordan A. ROGERSON Douglas A. blom Albert D. DUKES III Department of Physical Sciences Lander University 320 Stanley Avenue CPO Box 6030 Greenwood SC 29649 USA NanoCenter and Electron Microscopy Center University of South Carolina Columbia SC 29208 USA

Controlling the morphology of semiconductor nanocrystals has typically relied on controlling the concentration and species of surface ligands utilized in synthesis. Specific shapes, such as branched structures are of particular interest as the light harvesting and charge separating layer in a photovoltaic device. In this work we quantify how changes in the reaction temperature affect the resulting morphology of the nanocrystals. The narrowness of the temperature range over which the morphological transition occurred provides guidance to the tolerances necessary in the synthesis of CdSe utilized in commercial devices on a large scale.

关键词： CdSe nanocrystals morphology control synthesis electron microscopy

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User Experience of ColdZyme Mouth Spray against Common Cold in Competitive Athletes

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Open Journal of Respiratory Diseases 2018年第2期8卷 13-20页

作者： Ulf blom Ida Nelson Enzymatica AB LundSweden

ColdZyme? Mouth Spray (ColdZyme) is intended to reduce the probability of catching a cold and/or can help shorten the duration of a cold, if used at an early stage of the infection, by forming a barrier on the pharyngeal mucous membrane. The user experience of ColdZyme on naturally occurring common cold infections was evaluated in competitive athletes training professionally or on an amateur level. Thirteen athletes completed weekly electronic surveys on occurrence of common colds, cold severity and user experience over the course of 3 months. The 13 participants reported in total 15 cold incidents with an average duration of 7.4 days. The average cold severity was 31.2 on a visual-analogue scale (VAS) ranging from 0 (mildest possible cold) to 100 (worst possible cold). The overall user satisfaction with ColdZyme was high. 81% of the reported colds were experienced to be milder and/or shorter than usual. None of the participants reported “No effect”. Out of the participants who reported absence of a cold in the previous week, 69% reported a positive answer to the question if ColdZyme had prevented them from catching a cold in the previous week. Conclusion: The present study evaluated prevention and alleviation of naturally occurring common cold in athletes, and demonstrated that ColdZyme may be an easy and practical way for competitive athletes to prevent or reduce infections of the common cold virus and corresponding unwanted absence from training and competition. Due to the lack of a comparator group, a placebo effect cannot be excluded.

关键词： Common Cold Athletes ColdZyme^(■) Mouth Spray

First principles modelling of spin-polarised electron transport——Virtual Nanolab and Atomistix ToolKit ’s application in materials Science

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First principles modelling of spin-polarised electron transp...

The Effect of Nitrogen and Phosphorus Ratios and Electrical Conductivity on Plant Growth

中国化学会第二十五届学术年会

作者： Anders blom Atomistix A/S Juliane Maries vej 30 Copenhagen O Denmark Dr.

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American Journal of Plant Sciences 2016年第12期7卷 1590-1599页

作者： Laura Wiser Theo J. blom Department of Plant Agriculture University of Guelph Guelph Canada

Environmental concerns surround the use of plant growth retardants (PGRs) for plant height control, and non-chemical alternatives to PGRs can be labor intensive and expensive. Macronutrient modification is a little-studied, yet potentially effective method of controlling plant height. A number of studies have suggested that phosphorus (P) limitation may restrict plant height. Anecdotal evidence also suggests that using nitrate (NO3-), rather than ammonium (NH4+), as the principal nitrogen (N) source may help control plant height. The primary objective of this study was to evaluate different ratios of NO3-/ NH4+, NO3-/P and NH4+/P as well as electrical conductivity (EC) on plant height and growth. This was tested in a hydroponic system using marigolds, sunflowers and tomatoes. Initially, different ratios were tested at an EC of 1.2 dS·m-1, followed by using the same ratios at four ECs (0.6, 1.2, 2.2 and 4.0 dS·m-1) as a second objective. Although ratios did, at times, limit plant height, responses were season and species dependent, suggesting that modifications in plant nutrition, at the ratios used in this study, may not effectively control plant height in hydroponic systems. More consistent, yet species specific, height control was achieved by increasing EC level.

关键词： Tagetes erecta Helianthus annuus Lycopersicon esculentum Solanum lycopersicum Plant Growth Retardants PGR

COMPARISON OF ECF-LIGHT,TCF AND CEH BLEACHING OF NON-WOOD FIBRES

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天津科技大学学报 2004年第S2期 314-319页

作者： Thomas Greschik,Jiri Basta,Christian blom Eka Chemicals AB 44580 Bohus Sweden Eka Chemicals AB 44580 Bohus Sweden Eka Chemicals AB 44580 Bohus Sweden

A comparative evaluation of DQP, OQP and CEH bleaching of non-wood fibres has revealed that wheat straw, reed, bagasse and bamboo pulps can be bleached to brightness levels of just above 80% ISO, when applying an OQP bleaching sequence and to brightness levels of about 85% ISO when applying the DQP sequence using 10 - 15 kg/tp of ClO2 (aCl.), 15 - 20 kg/tp of H2O2 together with 1 - 2 kg/tp of EDTA. The P.C. numbers of the DQP and OQP bleached pulps are much lower and the viscosity much higher than those of the CEH bleached pulps. Compared with CEH pulps, both the DQP and OQP pulps had better strength properties, particularly Tear Index. In spite of their higher final brightness levels, the DQP pulps show similar or better strength properties than the OQP pulps. A comparison of the CEH and DQP effluents showed that the DQP bleaching could reduce the pollution load (CODCr, BOD5, SS) by 35 to 60% without the need for recirculation of any effluent streams. The AOX levels could be reduced by 87 to 93%.

关键词： CEH ISO ECF COMPARISON OF ECF-LIGHT,TCF AND CEH BLEACHING OF NON-WOOD FIBRES TCF

Ca^(2＋) involvement in activation of extracellular-signal- regulated-kinase 1/2 and m-calpain after axotomy of the sciatic nerve

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Neural Regeneration Research 2017年第4期12卷 623-628页

作者： Lisa B. Martensson Charlotta Lindwall blom Lars B. Dahlin Department of Translational Medicine-Hand Surgery Lund UniversityMalmoSweden Cellectricon AB MolndalSweden Department of Hand Surgery Skane University HospitalMalmoSweden

Detailed mechanisms behind regeneration after nerve injury, in particular signal transduction and the fate of Schwann cells （SCs）, are poorly understood. Here, we investigated axotomy-induced activation of extracellular- signal-regulated kinase-1/2 （ERK1/2; important for proliferation） and m-calpain in vitro, and the relation to Ca2＋ deletion and Schwann cell proliferation and death after rat sciatic nerve axotomy. Nerve segments were cultured for up to 72 hours with and without ethylene glycol-bis（β-aminoethyl ether）- N,N,N＇,N＇-tetraacetic acid （EGTA）. In some experiments, 5-bromo-2′-deoxyuridine （BrdU） was added during the last 24 hours to detect proliferating cells and propidium iodide （PI） was added at the last hour to detect dead and/or dying cells. Immunohistochemistry of sections of the cultured nerve segments was performed to label m-calpain and the phosphorylated and activated form of ERK1/2. The experiments revealed that immunoreactivity for p-ERK1/2 increased with time in organotypically cultured SCs. p-ERK1/2 and m-calpain were also observed in axons. A significant increase in the number of dead or dying SCs was observed in nerve segments cultured for 24 hours. When deprived of Ca2＋, activation of axonal m-calpain was reduced, whereas p-ERK1/2 was increased in SCs. Ca2＋ deprivation also significantly reduced the number of proliferating SCs, and instead increased the number of dead or dying SCs. Ca2＋ seems to play an important role in activation of ERK1/2 in SCs and in SC survival and proliferation. In addition, extracellular Ca2＋ levels are also required for m-calpain activation and up-regulation in axons. Thus, regulation of Ca2＋ levels is likely to be a useful method to promote SC proliferation.

关键词： nerve regeneration p-ERK1/2 m-calpain nerve injury signal transduction cell proliferation cell death activation axotomy sciatic nerve neural regeneration

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全尺寸液体冲压发动机燃烧室试验

空天技术 1990年第1期 36-42页

作者： Bjrn sjblom 于强

本文根据以往半尺寸模型的试验经验进行了全尺寸燃烧室试验。为了获得合适的燃烧性能,大量的工作集中在供油系统的调整上。本文还介绍了对应两种最理想燃油喷嘴配置所获得的模拟高空试验结果,其中包括稳定范围、燃烧效率和压力振荡。同... 详细信息

本文根据以往半尺寸模型的试验经验进行了全尺寸燃烧室试验。为了获得合适的燃烧性能,大量的工作集中在供油系统的调整上。本文还介绍了对应两种最理想燃油喷嘴配置所获得的模拟高空试验结果,其中包括稳定范围、燃烧效率和压力振荡。同时对燃烧室进气温度影响燃油分布这一特殊问题进行了解释。此外还讨论了θ参数的有效性。

关键词：液体火箭推进剂冲压式喷气发动机冲压进气燃烧室全尺寸模型燃烧试验。

最佳匹配：环境和职业兴趣在大学生学业满意度中的作用

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最佳匹配：环境和职业兴趣在大学生学业满意度中的作用

作者： Xara Naomi blom 华中师范大学

学位级别：硕士

一直以来,霍兰德的职业兴趣理论被广泛用于研究学生的职业选择以及不同环境如何对其产生影响。然而家庭和休闲环境的影响作用未受到重视。本研究以社会认知职业理论为第二理论基础,探讨不同的学习环境,如学习经历中的个人因素以及环境... 详细信息

一直以来,霍兰德的职业兴趣理论被广泛用于研究学生的职业选择以及不同环境如何对其产生影响。然而家庭和休闲环境的影响作用未受到重视。本研究以社会认知职业理论为第二理论基础,探讨不同的学习环境,如学习经历中的个人因素以及环境因素对学生学业满意度的影响。选取420名不同文化背景的大学生作为被试,包括来自不同大学的中国学生和其他国家留学生。结果显示,职业兴趣与大学专业不存在显著关系;课外活动可显著预测学业满意度,父母支持在其中起中介作用。该研究结果强调了支持性环境在学生从学校到工作过渡过程中的重要性。

关键词：霍兰德职业兴趣理论社会认知职业理论职业兴趣学业满意度课外活动父母支持环境