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Unhealthy eating habits around sleep and sleep duration: To eat or fast?

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World Journal of Diabetes 2018年第11期9卷 190-194页

作者： kei Nakajima School of Nutrition and Dietetics Faculty of Health and Social Services Kanagawa University of Human Services Department of Endocrinology and Diabetes Saitama Medical Center Saitama Medical University

Traditionally, breakfast skipping(BS), and recently latenight dinner eating(LNDE), have attracted attention in public health because they can predispose to cardiometabolic conditions such as obesity and type 2 diabetes. Intriguingly, it has become evident that short duration of sleep elicits similar health risks. As LNDE, BS, and short sleep can be closely related and can aggravate each other, these three should not be considered separately. In this context, LNDE(or its equivalents, snacking or heavy alcohol consumption after dinner) and BS may be representative unhealthy eating habits around sleep(UEHAS). While it is important to take energy in the early morning for physical and intellectual activities, attaining a fasting state is essential for metabolic homeostasis. Our previous UEHAS studies have shown that BS without LNDE, i.e., BS alone, is not associated with obesity and diabetes, suggesting the possibility that BS or taking a very low energy breakfast, which could yield fasting for a while, may prevent obesity and diabetes in people with inevitable LNDE. Further studies considering UEHAS and short sleep simultaneously are needed to elucidate the effects of these unhealthy lifestyles on cardiometabolic diseases.

关键词： Breakfast skipping Late-night dinner eating Sleep Fasting Hungry

SPECIES-AREA RELATIONSHIP FOR POWER-LAW SPECIES ABUNDANCE DISTRIBUTION

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International Journal of Biomathematics 2012年第3期5卷 215-223页

作者： HARUYUKI IRIE kei TOKITA Information Media Center and Graduate School of Science Hiroshima University 1-4-2 Kagamiyama Higashi-Hiroshima Hiroshima 739-8511 Japan Cybermcdia Center Graduate School of Science and Graduate School of Frontier Biosciences Osaka University 1-32 Machikaneyamacho Toyonaka Osaka 560-0043 Japan

We studied the mathematical relations between species abundance distributions （SADs） and species-area relationships （SARs） and found that a power-law SAR can be generally derived from a power-law SAD without a special assumption such as the ＂canonical hypothesis＂. In the present analysis, an SAR-exponent is obtained as a function of an SAD-exponent for a finite number of species. We also studied the inverse problem, from SARs to SADs, and found that a power-SAD can be derived from a power-SAR under the condition that the functional form of the corresponding SAD is invariant for changes in the number of species. We also discuss general relationships among lognormal SADs, the broken-stick model （exponential SADs）, linear SARs and logarithmic SARs. These results suggest the existence of a common mechanism for SADs and SARs, which could prove a useful tool for theoretical and experimental studies on biodiversity and species coexistence.

关键词： Species-area relationship species abundance distribution power-law SAD.

Rank-One Cross Commutators on Backward Shift Invariant Subspaces on the Bidisk

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Acta Mathematica Sinica,English Series 2009年第5期25卷 693-714页

作者： kei Ji IZUCHI Kou Hei IZUCHI Department of Mathematics Niigata University Graduate School of Science and Technology Niigata University Department of Mathematics Graduate School of ScienceHokkaido University

For a backward shift invariant subspace N in H^2（Г^2）, the operators Sz and Sw on N are defined by Sz = PNTz｜N and Sw, = PNTw｜N, where PN is the orthogonal projection from L^2（Г^2） onto N. We give a characteri... 详细信息

关键词： backward shift invariant subspace invariant subspace Hardy space cross commutator rank-one operator

A method for estimating the errors in many-light rendering with supersampling

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Computational Visual Media 2019年第2期5卷 151-160页

作者： Hirokazu Sakai Kosuke Nabata Shinya Yasuaki kei Iwasaki Wakayama University WakayamaWakayama640-8510Japan Dwango CG Research KADOKAWA Hongo Bldg.5245 HongoBunkyo-kuTokyo1130033Japan

In many-light rendering, a variety of visual and illumination effects, including anti-aliasing,depth of field, volumetric scattering, and subsurface scattering, are combined to create a number of virtual point lights(VPLs). This is done in order to simplify computation of the resulting illumination. Naive approaches that sum the direct illumination from many VPLs are computationally expensive;scalable methods can be computed more efficiently by clustering VPLs, and then estimating their sum by sampling a small number of VPLs. Although significant speed-up has been achieved using scalable methods, clustering leads to uncontrollable errors, resulting in noise in the rendered images. In this paper, we propose a method to improve the estimation accuracy of manylight rendering involving such visual and illumination effects. We demonstrate that our method can improve the estimation accuracy by a factor of 2.3 over the previous method.

关键词： anti-aliasing depth of field many-light rendering participating media

Temporal and spatial anti-aliasing for rendering reflections on water waves

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Computational Visual Media 2021年第2期7卷 201-215页

作者： Namo Podee Nelson Max kei Iwasaki Yoshinori Dobashi Hokkaido University Sapporo060-0814Japan University of California Davis95616USA Wakayama University Wakayama640-8441Japan

The reflection of a bright light source on a dynamic surface such as water with waves can be difficult to render well in real time due to reflection aliasing and *** this paper,we propose a solution to this problem by approximating the reflection direction distribution for the water surface as an elliptical Gaussian *** we analytically integrate the reflection contribution throughout the rendering interval *** method can render in real time an animation of the time integrated reflection of a spherical light source on highly dynamic waves with reduced aliasing and flickering.

关键词： real-time rendering anti-aliasing reflection water surface water waves elliptical Gaussian

Vague relationship between alcohol consumption and metabolic syndrome in nonobese people

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World Journal of Gastroenterology 2012年第37期18卷 5315-5316页

作者： kei Nakajima Masafumi Saito Division of Clinical Nutrition Department of Medical DieteticsFaculty of Pharmaceutical SciencesJosai University1-1 KeyakidaiSakadoSaitama 350-0295Japan

Fatty liver, including non-alcoholic fatty liver disease, is closely associated with metabolic syndrome (MS). Thus, the presence of fatty liver without MS in some conditions may be clinically important. Many studies have shown that compared with no or occasional alcohol intake, moderate alcohol consumption is associated with lower prevalence rates of hypertension and type 2 diabetes, and lower levels of circulating C-reactive protein, a valuable marker for MS and insulin resistance. Considering these findings, light to moderate alcohol consumption has theoretical benefits on fatty liver and MS. Fatty liver, including non-alcoholic fatty liver disease, may be more clinically important than MS, particularly in non-obese individuals, because fatty liver can develop before MS in several conditions, such as regular alcohol consumers. Furthermore, most of the currently used MS criteria are unable to detect "true MS" because of variations in multiple factors such as age, height, medications, and complications.

关键词： Alcohol consumption Non-alcoholic fatty liver disease Metabolic syndrome Adult treatment panel Ⅲ

Detecting SARS-CoV-2 neutralizing immunity: highlighting the potential of split nanoluciferase technology

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Journal of Molecular Cell Biology 2022年第4期14卷 27-38页

作者： Sundararaj Stanleyraj Jeremiah kei Miyakawa Akihide Ryo Department of Microbiology Yokohama City University School of MedicineYokohama 236-0004 Japan

The coronavirus disease 2019(covID-19)pandemic has progressed over 2 years since its onset causing significant health concerns all over the world and is currently curtailed by mass *** acquired against severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)can be following either infection or ***,one can never be sure whether the acquired immunity is adequate to protect the individual from subsequent infection because of three important factors:individual variations in humoral response dynamics,waning of protective antibodies over time,and the emergence of immune escape ***,a test that can accurately dfferentiate the protected from the vulnerable is the need of the *** plaque reduction neutralization assay is the conventional gold standard test for estimating the titers of neutralizing antibodies that confer ***,it has got several drawbacks,which hinder the practical application of this test for wide-scale ***,various tests have been developed to detect protective immunity against SARS-CoV-2 that directly or indirectly assess the presence of neutralizing antibodies to SARS-Cov-2 in a lower biosafety *** this review,the pros and cons of the currently available assays are elaborated in detail and special focus is put on the scope of the novel split nanoluciferase technology for detecting SARS-CovV-2 neutralizing antibodies.

关键词： CoviD-19 neutralizing antibody immune escape surrogate virus neutralization test split nanoluciferase viruslike particles immunity passport

Formadinium Cation Doping Stabilized Ultra-deep-blue Lead Halide Perovskite Nanocrystal Light-emitting Diodes

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Chemical Research in Chinese Universities 2024年第3期40卷 556-560页

作者： Pui kei KO Jonathan E.HALPERT Department of Chemistry The Hong Kong University of Science and TechnologyKowloonHong Kong 999077P.R.China

The halide migration effect in mixed-halide lead-based perovskite is a serious problem hindering the development of its display *** this study,we have successfully addressed this issue by reporting formadinium(FA)doped mixed-halide perovskite nanocrystals(NCs)with ultra-deep-blue emission of 450 nm,narrow bandwidth of 16 nm,and a high photoluminescence quantum yield(PLQY)of 66%.The perovskite nanocrystal light-emitting diodes(NC-LEDs)using this nanocrystal as an active layer achieved a maximum external quantum efficiency(EQE)of 0.32%,30-fold improved compared to that of pristine and stable electroluminescence(EL)spectra at 450 nm under a 4.9–8.0 V *** findings demonstrate the potential of our approach in developing stable and efficient deep blue perovskite NC-LEDs.

关键词： Halide perovskite Light-emitting diode Deep-blue

From an aging person to an elegant senior:a humanistic approach to viewing older adults

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Frontiers of Nursing 2020年第3期7卷 191-201页

作者： Fung-kei Cheng Hong Kong China

The continuing growth in the number of adults aged 60-plus has raised global alertness of population *** demographic change,on the one hand,reduces productivity and increases public expenditure due to aging,resulting in prejudice,bias,misrepresentation,and discrimination against *** the other hand,it develops a specific consumer market segment and extends the availability and accessibility of the elderly through employment,volunteering,or *** study argues against the stigmatization of this age group from a functional perspective that damages social *** advocates a humanistic view toward seniors to eradicate marginalization and promotes the manageability of the senior *** the aid of advanced technology and health equity,senior adults can retain everyday competence for self-care with dignity,as well as gracefully attain physical and psychological health,autonomy,and well-being in their later *** these considerations give medical and nursing professionals insight into how to take care of the elderly.

关键词： demographic revolution elegant senior gerontology optimal aging productive aging silver economy