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Long-lived lunar volcanism sustained by precession-driven core-mantle friction

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National Science Review 2024年第2期11卷 114-123页

作者： Shuoran Yu Xiao Xiao Shengxia Gong Nicola tosi Jun Huang doris Breuer Long Xiao Dongdong Ni State Key Laboratory of Lunar and Planetary Sciences Macau University of Science and Technology Planetary Science Institute State Key Laboratory of Geological Processes and Mineral Resources School of Earth Sciences China University of Geosciences CAS Key Laboratory of Planetary Sciences Shanghai Astronomical Observatory Institute of Planetary Research German Aerospace Centre(DLR)

Core-mantle friction induced by the precession of the Moon's spin axis is a strong heat source in the deep lunar mantle during the early phase of a satellite's evolution, but its influence on the long-term thermal evolution still remains poorly explored. Using a one-dimensional thermal evolution model, we show that core-mantle friction can sustain global-scale partial melting in the upper lunar mantle until ～3.1 Ga, thus accounting for the intense volcanic activity on the Moon before ～3.0 Ga. Besides, core-mantle friction tends to suppress the secular cooling of the lunar core and is unlikely to be an energy source for the long-lived lunar core dynamo. Our model also favours the transition of the Cassini state before the end of the lunar magma ocean phase(～4.2 Ga), which implies a decreasing lunar obliquity over time after the solidification of the lunar magma ocean. Such a trend of lunar obliquity evolution may allow volcanically released water to be buried in the lunar regolith of the polar regions. As a consequence, local water ice could be more abundant than previously thought when considering only its accumulation caused by solar wind and comet spreading.

关键词： Moon precession orbit volcanism

the Pichia pastoris enzyme production platform:From combinatorial library screening to bench-top fermentation on residual cyanobacterial biomass

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Journal of Bioresources and Bioproducts 2024年第1期9卷 43-57页

作者： Korbinian Sinzinger Ulrike Obst Samed Güner Manuel Döring Magdalena Haslbeck doris Schieder Volker Sieber Chair of Chemistry of Biogenic Resources Campus Straubing for Biotechnology and SustainabilityTechnical University of MunichStraubing 94315Germany Catalysis Research Center Technical University of MunichGarching 85748Germany SynBiofoundry@tUM Technical University of MunichStraubing 94315Germany School of Chemistry and Molecular Biosciences The University of QueenslandSt.Lucia 4072Australia

the demand for industrial enzymes is continually rising,fueled by the growing need to shift towards more sustainable industrial ***,making efficient enzyme production strains and identifying optimal enzyme expression conditions remains a ***,the production of the enzymes themselves comes with unavoidable impacts,e.g.,the need to utilize secondary ***,we take a more holistic view of bioprocess development and report an integrative approach that allows us to rapidly identify improved enzyme expression and secretion conditions and make use of cyanobacterial waste biomass as feed for supporting Pichia pastoris *** demonstrate these capabilities by producing a phytase secreted by *** that is grown on cyanobacterium hydrolysate and buffered glycerol-complex(BMGY)medium,with genetic expression conditions identified by high-throughput screening of a randomized se-cretion *** our best-performing strain is grown in a fed-batch fermentation on BMGY,we reach over 7000 U/mL in three days.

关键词： Protein secretion Phytase Cyanobacterial biomass Fed-batch fermentation Pichia pastoris

Mechanical upper bowel obstruction caused by a large trichobezoar in a young woman: A very unusual case report

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world Journal of Clinical Cases 2024年第4期12卷 777-781页

作者： Magdalena Scherrer Peter Kornprat Robert Sucher Johanna Muehlsteiner doris wagner Department of Surgery Division for GeneralVisceral and Transplantation SurgeryMedical University of GrazGraz 8036Austria Department of Surgery Clinic RohrbachRohrbach 4150Austria

BACKGROUND Bezoars usually compile human fibers and debris.A special form of bezoar in case of psychologically altered individuals is the *** consists of voluntarily swallowed hair bulks and is normally removed via *** leading to ileus have rarely been *** SUMMARY A 24-year-old female patient presented to the emergency room with abdominal pain,nausea,and vomiting for 3 *** previous medical and psychiatric history was *** analysis showed iron deficiency anemia,leukocytosis,and elevated liver *** abdominal Ct scan revealed a dense structure in the patients’stomach which turned out to be a huge trichobezoar completely obstructing the *** trichobezoar had to be removed *** her postoperative course,a subcutaneous seroma *** a single puncture,the rest of the recovery process was unremarkable,and the patient recovered *** A mechanical bowel obstruction is a potentially life-threatening event for every *** our case a young female was suffering from severe symptoms of an obstruction which might have resulted in serious harm without successful surgical management.

关键词： Rapunzel syndrome Hair ingestion Gastroscopy Bezoar Case report

Growth differentiation factor-15 serum concentrations reflect disease severity and anemia in patients with inflammatory bowel disease

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world Journal of Gastroenterology 2024年第13期30卷 1899-1910页

作者： Ante tonkic Marko Kumric Ivna Akrapovic Olic doris Rusic Piero Marin Zivkovic Daniela Supe Domic Zeljko Sundov Ivan Males Josko Bozic Biology of Neoplasms University of Split School of MedicineSplit 21000Croatia Department of Pathophysiology University of Split School of MedicineSplit 21000Croatia Department of Gastroenterology University Hospital of SplitSplit 21000Croatia Department of Pharmacy University of Split School of MedicineSplit 21000Croatia Department of Medical Laboratory Diagnostics University Hospital of SplitSplit 21000Croatia Department of Health Studies University of SplitSplit 21000Croatia Department of Internal Medicine University of Split School of MedicineSplit 21000Croatia Department of Surgery University Hospital of SplitSplit 21000Croatia

BACKGROUND Population of patients with inflammatory bowel disease(IBD)is burdened by various extraintestinal manifestations which substantially contribute to greater morbidity and ***-differentiation factor-15(GDF-15)is often overexpressed under stress conditions,such as inflammation,malignancies,heart failure,myocardial ischemia,and many *** to explore the association between GDF-15 and IBD as serum concentrations of GDF-15 were shown to be an independent predictor of poor outcomes in multiple *** additional aim was to determine possible associations between GDF-15 and multiple clinical,anthropometric and laboratory parameters in patients with *** this cross-sectional study included 90 adult patients diagnosed with IBD,encompassing both Crohn’s disease(CD)and ulcerative colitis(UC),and 67 healthy age-and sex-matched *** patients underwent an extensive workup,including colonoscopy with subsequent histopathological *** activity was assessed by two independent gastroenterology consultants specialized in IBD,employing well-established clinical and endoscopic scoring ***-15 serum concentrations were determined following an overnight fasting,using electrochemiluminescence *** In patients with IBD,serum GDF-15 concentrations were significantly higher in comparison to the healthy controls[800(512-1154)pg/mL vs 412(407-424)pg/mL,Pwhereas no difference in GDF-15 was found between patients with CD and UC[807(554-1451)pg/mL vs 790(509-956)pg/mL,P=0.324].Moreover,multiple linear regression analysis showed that GDF-15 levels predict CD and UC severity independent of age,sex,and C-reactive protein levels(P=0.016 and P=0.049,respectively).Finally,an association between GDF-15 and indices of anemia was ***,negative correlations were found between GDF-15 and serum iron levels(r=-0.248,P=0.021),as well as GDF-15 and hemoglobin(r=-0.351,P=0.021).Accordingly,in comparison to I

关键词： Inflammatory bowel disease Crohn’s disease Ulcerative colitis Growth-differentiation factor-15 Anemia Extraintestinal manifestations

亚致死剂量UV-C辐照抑制铜绿微囊藻生长的效果

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清华大学学报（自然科学版） 2010年第9期50卷 1412-1415页

作者：陶益毛献忠张锡辉袁侃 doris w.t.au 清华大学深圳研究生院环境工程与管理研究中心深圳518055 香港城市大学生物与化学系香港

铜绿微囊藻是中国典型的水华蓝藻。该文研究亚致死剂量短波紫外线（UV-C）辐照对其生长的抑制效果。采用准平行光束仪进行定量辐照处理,用共聚焦激光扫描显微镜进行藻细胞计数,用流式细胞术识别藻细胞膜完整性,三维荧光光谱分析藻蓝蛋... 详细信息

铜绿微囊藻是中国典型的水华蓝藻。该文研究亚致死剂量短波紫外线（UV-C）辐照对其生长的抑制效果。采用准平行光束仪进行定量辐照处理,用共聚焦激光扫描显微镜进行藻细胞计数,用流式细胞术识别藻细胞膜完整性,三维荧光光谱分析藻蓝蛋白及叶绿a的相对荧光水平。结果表明：对初始密度为106个/mL铜绿微囊藻,UV-C辐照能抑制藻细胞生长,亚致死剂量范围是50-100 mJ/cm^2,抑制效果可以持续7 d。

关键词：铜绿微囊藻亚致死剂量UV-C辐照生长抑制细胞膜完整性湖泊

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Molecular characterization of an outbreak-involved Bacillus anthracis strain confirms the spillover of anthrax from west Africa

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Infectious Diseases of Poverty 2024年第1期13卷 93-94页

作者： Shuchao wang Roland Suluku Mohamed B.Jalloh Ahmed F.Samba Baogui Jiang Yubiao Xie doris Harding Mengyao Zhang Foday Sahr Mahmud E.Sesay James S.Squire Mohamed A.Vandi Moinina N.Kallon Shoufeng Zhang Rongliang Hu Yuee Zhao Zhiqiang Mi Changchun Veterinary Research Institute Chinese Academy of Agricultural Sciences Changchun China Department of Animal Sciences School of Agriculture and Food Sciences Njala University Njala Sierra Leone Department of Microbiology College of Medicine and Allied Health Sciences University of Sierra Leone Freetown Sierra Leone Ministry of Agriculture and Food Sciences Freetown Sierra Leone Beijing Institute of Microbiology and Epidemiology Beijing China Ministry of Health and Sanitation Freetown Sierra Leone Beijing Institute of Biotechnology Beijing China

Background Anthrax,a zoonotic disease caused by the spore-forming bacterium Bacillus anthracis,remains a major global public health concern,especially in countries with limited *** Leone,a west African country historically plagued by anthrax,has almost been out of report on this disease in recent *** this study,we described a large-scale anthrax outbreak affecting both animals and humans and attempted to characterize the *** the causative agent of the animal outbreak in Port Loko District,Sierra Leone,between March and May 2022 was identified using the nanopore sequencing technique.A nationwide active surveillance was implemented from May 2022 to June 2023 to monitor the occurrence of anthrax-specific symptoms in *** cases were subsequently verified using quantitative polymerase chain ***-genome sequencing was accomplished by combining long-read and short-read sequencing *** phylogenetic analysis was performed based on the full-chromosome single nucleotide *** the outbreak in Port Loko District,Sierra Leone,led to the death of 233 animals between March 26th and May 16th,*** ruled out the initial suspicion of Anaplasma species and successfully identified *** as the causative agent of the *** a result of the government's prompt response,out of the 49 suspected human cases identifed during the one-year active surveillance,only 6 human cases tested positive,all within the frst month after the official declaration of the *** phylogenetic analysis indicated that the BaSL2022 isolate responsible for the outbreak was positioned in the ***.153 clade within the transEuroAsian group of *** we successfully identifed a large-scale anthrax outbreak in Sierra *** causative isolate of ***,BaSL2022,phylogenetically bridged other lineages in ***.153 clade and neighboring genetic groups,***.144 and ***.148,

关键词： Molecular identification Anthrax Bacillus anthracis Sierra Leone Phylogeny Single nucleotide polymorphism

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FROM YOUR Editor

空中英语教室（高级版．彭蒙惠英语） 2024年第6期 1-1页

作者： doris Brougham 不详

Dearreaders,where is the most beautiful place you have been to?Over the years,I have traveled to more than 35 countries,playing my trumpet on tours with our professional choir,Heavenly Melody.I have seen many beautiful sights,but a sight that truly took my breath away was actually under the *** was when I went scuba diving off the coast of Sipadan,Malaysia.

关键词： beautiful travel sights

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超滤运行过程中膜表面亲水性的变化特征

水处理技术 2013年第6期39卷 13-16页

作者：乔铁军 doris w.t.au 张锡辉清华大学深圳研究生院广东深圳518055 香港城市大学生物与化学系香港999077 深圳市水务(集团)有限公司广东深圳518031

为了研究膜亲水性在超滤运行过程中的变化规律,采用小试装置,研究了在不同运行状况下的膜接触角变化。结果表明,在长期的运行过程中,膜接触角均不同程度地下降。单独水反冲洗和化学加强反洗对接触角的影响较小。膜接触角在过滤周期内先... 详细信息

为了研究膜亲水性在超滤运行过程中的变化规律,采用小试装置,研究了在不同运行状况下的膜接触角变化。结果表明,在长期的运行过程中,膜接触角均不同程度地下降。单独水反冲洗和化学加强反洗对接触角的影响较小。膜接触角在过滤周期内先升高再降低。随着通量的增加,膜接触角逐渐降低。与沉后水相比,活性炭过滤出水更易引起膜接触角下降。随着pH升高,膜接触角会上升。化学清洗使膜接触角增加,当用NaOH清洗时,接触角变化不大;而用HCl和NaClO清洗时,接触角明显增加。总之,膜表面亲水性在运行过程中会发生一定变化,并且受到原水水质、操作参数和反冲洗方式等方面影响。

关键词：膜超滤亲水性接触角化学清洗

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Effect of Different Rates and Mixtures of Solid Household waste and Faecal Sludge-Based Composts on Soil Fertility and Productivity of Sunflower (Helianthus annuus L.) in Dschang, west Cameroon

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Open Journal of Soil Science 2024年第7期14卷 448-470页

作者： Romary Ngnipa tchinda Rodrigue Emmanuel Kenne Primus Azinwi tamfuh Jovanie Gladys Kenfack doris temgoua Zombou Désiré Évariste Moundjeu tsafack Richard tanwi Ghogomu Emile temgoua Dieudonné Bitom Oyono Department of Environmental Sciences of the Higher Institute of Agriculture Wood Water and the Environment of the University of Bertoua Blabo Cameroon Department of Soil Science Soil Analysis and Environmental Chemistry Research Unit Faculty of Agronomy and Agricultural Sciences University of Dschang Dschang Cameroon Department of Mining and Mineral Engineering National Higher Polytechnic Institute University of Bamenda Bambili Cameroon Department of Animal Biology Faculty of Sciences University of Dschang Dschang Cameroon Department of Earth Sciences University of Yaounde 1 Yaounde Cameroon

the unbalanced and inadequate use of fertilizers is one of the causes of soil degradation. Combined with the ever-increasing population, it is necessary to find sustainable agricultural production alternatives. the present work aims to determine the effect of different rates and mixtutes of organic amendments on soil fertility and the performance of Sunflower (Helianthus annuus L.). In the field, treatments consisted of solid household waste and faecal sludge in the ratios of 3/5 (V1), and a mixture of faecal sludge and household waste in the ratio of 3/5 with 900 worms (V2). At the end of the composting process, V1, V2 composts and the poultry manure (PM) were applied at rates of 4, 5 and 6 t∙ha−1 in a randomized complete block design with three replications. Soil samples were collected before and after the experiment and analyzed. the main results revealed that at the end of the composting process, there was a progressive improvement in the physico-chemical properties of V1 and V2 composts. In particular, the C/N ratio, phosphorus (P) and total nitrogen (tN) initially at 16.49 ± 0.42 (V1, V2), 21.06 ± 0.07 mg∙kg−1 (V1, V2), 0.76% ± 0.08% (V1, V2) respectively, increased after 60 days to 12.40 ± 0.41 (V1), 9.74 ± 0.28 (V2) for C/N, 21.94 ± 0.63 mg∙kg−1 (V1) and 22.04 ± 0.04 mg∙kg−1 (V2) for P, 0.96% ± 0.0% (V1) and 1.22 ± 0.04 (V2) for tN. the application of 6 t∙ha−1of PM had the greatest influence on the diameter and weight of the flower heads (27.16 ± 4.01 t∙ha−1 and 230.83 ± 2.64 t∙ha−1), while 4 t∙ha−1 of V2 gave the tallest sunflower plants (110.07 ± 73.28 cm) as well as the diameter at the crown (19.30 ± 9.07 cm). However, CEC was most influenced by 4 t∙ha−1 of V1, while 4 t∙ha−1 of PM had the greatest effect on organic carbon and phosphorus. However, 5 t∙ha−1 of PM showed the highest sunflower production and yield (1.67 ± 0.21 t∙ha−1). the combination with 900 earthworms is recommended for composting and 5 t∙ha−1 of PM is recommended to obtain a better sunfl

关键词： Sunflower Faecal Sludge Household waste Compost Soil Fertility