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Former Botanical Garden of ORSTOM(Côte d’Ivoire):What Remain after Thirty Years of Abandonment and Forest Restoration

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Journal of Botanical Research 2023年第1期5卷 1-11页

作者： Ouattara Noufou Doudjo Ouattara Ahmed Douffi Kouakou Guy-Casimir konédofoungo Coulibaly Brahima Bakayoko Adama Laboratoire d’Ecologie et Développement Durable(LEDD) UFR Sciences de la NatureUniversitéNANGUI ABROGOUA02 BP 801 Abidjan 02Côte d’Ivoire UFR Sciences Biologiques UniversitéPelefero Gon CoulibalyBP 1328 KorhogoCôte d’Ivoire Centre Suisse de Recherches Scientifiques en Côte d’Ivoire(CSRS) 01 BP 1303 Abidjan 01Côte d’Ivoire Centre National de Recherche Agronomique(CNRA) 08 BP 33 Abidjan 08Côte d’Ivoir

Botanical gardens represent important places for ex situ *** of these botanical gardens has been abandoned in Côte d’Ivoire for 30 *** is the former botanical garden of *** study was conducted to determine the level of diversity of this former garden in order to assess the opportunity for its *** authors carried out inventories in 18 quadrats of 500 m2 through the vegetation to collect woody *** measurements(height,diameter)were also recorded to assess the structure of the site.A total of 190 species have been *** belong to 141 genera and 47 *** former botanical garden contains important species because of their origin,status or particularity(threatened,endemic,rarity,etc.).A total of 19 threatened species including 2 endangered and west African endemic(Chrysophyllum azaguieanum ***ège,Placodiscus pseudostipularis)were found at the ***,Chrysophyllum azaguieanum is declared extinct from Côte d’*** species are rare in the flora of Côte d’Ivoire:Balanites wilsoniana,Chrysophyllum azaguieanum,Gilletiodendron kisantuense and Loesenera *** most abundant species is Hopea *** this introduced species is considered globally vulnerable,it presents a risk of invasion in the forest of Côte d’*** diameter and height structures show that all the stages of development are presented indicating a good regeneration on the ***,this botanical garden deserves to be rehabilitated and especially urgent management of Hopea odorata is needed to prevent an invasion of this species.

关键词： Botanical garden ORSTOM Côte d’Ivoire Forest restoration ex situ conservation

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Co-Occurring Plant Species of the West African Critically Endangered Aubregrinia taïensis Heine, in Côte d’Ivoire

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American Journal of Plant Sciences 2023年第8期14卷 915-928页

作者： Doudjo Noufou Ouattara Hermann Hippolyte Tro dofoungo koné Akoua Emilia Afanvi Doh Amed Coulibaly Adama Bakayoko Laboratoire de Botanique et Valorisation de la Diversité Végétale UFR Sciences de la Nature Université Nangui Abrogoua Abidjan C&#244te d’Ivoire Centre Suisse de Recherches Scientifiques en Cô te d’Ivoire (CSRS) Abidjan C&#244te d’Ivoire UFR Sciences Biologiques Université Pelefero Gon Coulibaly Korhogo C&#244te d’Ivoire

The Upper Guinea Forest is subject to heavy deforestation. In this context, many endemic and/or rare plant species are threatened with extinction. This is the case of Aubregrinia taïensis (Aubrév. & Pellegr.) Heine, a critically endangered Sapotaceae species, endemic to Côte d’Ivoire and Ghana. After 3 years of investigation in and around the Tai National Park (TNP) in the West of Côte d’Ivoire, only one individual of this species was located and no sexual reproductive organs (fruits, seeds) were observed. Woody plant species around this individual were inventoried in order to know the species that can co-occur with Aubregrinia taïensis. For that a plot of 30 m of diameter was established around the individual and all of the woody species of this circle were inventoried. Then, the taxonomic diversity, the chorology of the species, the conservation status and their life-form were recorded. A total of 130 woody plant species belonging to 51 families were collected in the site. The most represented families are Euphorbiaceae (12 spp.), Rubiaceae (10 spp.), Annonaceae (7 spp.), Fabaceae, Moraceae, Malvaceae (6 spp. each) while the most represented genera are Diospyros L. (4 spp.), Cola Schott & Endl. and Vitex L. (3 spp.). Species from the Guineo-Congolese Region (GC) are the most abundant (72%). They are followed by West African endemic species (GCW, 19%). Microphanerophytes (mp) are the most abundant and represent more than 40% of the species. Three vulnerable species were found in this plot: Campylospermum amplectens, Placodiscus boya and Trichoscypha cavalliensis. Thus, the preservation of this forest is more than necessary.

关键词： Co-Occurring Species Aubregrinia taïensis Forest Threatened Species Côte d’Ivoire

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An infinite-dimensional representation of the Ray-Knight theorems

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Science China Mathematics 2024年第1期67卷 149-162页

作者： Elie Aidékon Yueyun Hu Zhan Shi School of Mathematical Sciences Fudan UniversityShanghai 200433China LAGA UniversitéSorbonne Paris NordVilletaneuse 93430France Institute of Applied Mathematics Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China

The classical Ray-Knight theorems for the Brownian motion determine the law of its local time process either at the first hitting time of a given value a by the local time at the origin,or at the first hitting time of a given position b by the Brownian *** extend these results by describing the local time process jointly for all a and b,by means of the stochastic integral with respect to an appropriate white *** result applies toμ-processes,and has an immediate application:aμ-process is the height process of a Feller continuous-state branching process(CSBP)with immigration(Lambert(2002)),whereas a Feller CSBP with immigration satisfies a stochastic differential equation(SDE)driven by a white noise(Dawson and Li(2012));our result gives an explicit relation between these two descriptions and shows that the SDE in question is a reformulation of Tanaka’s formula.

关键词： Ray-Knight theorem μ-process white noise Tanaka's formula

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Update on acute myeloid leukemia stem cells:New discoveries and therapeutic opportunities

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World Journal of Stem Cells 2016年第10期8卷 316-331页

作者： Maximilian Stahl Tae kon Kim Amer M Zeidan Section of Hematology Department of Internal MedicineYale School of Medicine

The existence of cancer stem cells has been wellestablished in acute myeloid leukemia. Initial proof of the existence of leukemia stem cells(LSCs) was accomplished by functional studies in xenograft models making use of the key features shared with normal hematopoietic stem cells(HSCs) such as the capacity of self-renewal and the ability to initiate and sustain growth of progenitors in vivo. Significant progress has also been made in identifying the phenotype and signaling pathways specific for LSCs. Therapeutically, a multitude of drugs targeting LSCs are in different phases of preclinical and clinical development. This review focuses on recent discoveries which have advanced our understanding of LSC biology and provided rational targets for development of novel therapeutic agents. One of the major challenges is how to target the selfrenewal pathways of LSCs without affecting normal HSCs significantly therefore providing an acceptable therapeutic window. Important issues pertinent to the successful design and conduct of clinical trials evaluating drugs targeting LSCs will be discussed as well.

关键词： Leukemia stem cells Cancer stem cells Acute myeloid leukemia Stem cell niche Xenotransplantation Plerixafor NF-κ B C-X-C chemokine receptor type 4

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Methyl Orange removal by a novel PEI-AuNPs-hemin nanocomposite

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Journal of Environmental Sciences 2017年第3期29卷 278-283页

作者： Weiwen Hu Xuehua Yu Qiong Hu Jinming kon Lianzhi Li Xueji Zhan School of Environmental and Biological Engineering Nanjing University of Science&TechnologyNanjing 210094China Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology School of Chemistry and Chemical EngineeringLiaocheng UniversityLiaocheng 252000China Chemistry Department College of Arts and SciencesUniversity of South FloridaFL 33620-4202USA

A novel poly（ethyleneimine）/Au nanoparticles/hemin nanocomposite （PEI-AuNPs-Hemin） acting for Methyl Orange （MO） removal has been synthesized. PEI-AuNPs was prepared firstly and it was then linked to heroin through the coupling between carboxyl groups in hemin and amino groups in PEI without the activation of carboxyl groups. The high reactivity and stability of AuNPs contributed greatly in the formation of the amido bonds in the nanocomposite. Fourier transform infrared spectroscopy, transmission electron microscopy and UV-visible spectroscopy were used to characterize the PEI-AuNPs-Hemin. Results show that PEI-AuNPs-Hemin has strong adsorption for MO. Adsorption and degradation experiments were carried out at different pHs, nanocomposite concentrations and UV irradiation times. Removal of MO in acidic solutions was more effective than in basic solutions. The real-time study showed that the MO degradation with the nanocom- posite under UV irradiation was a fast process. In addition, the photocatalytic degradation mechanism was proposed. The study suggests that the PEI-AuNPs-Hemin may have promising applications in environmental monitoring and protection.

关键词： Poly(ethyleneimine)HeroinAu nanoparticleNanocompositeMethyl Orange removal

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Systematic review of diagnostic tools for peritoneal metastasis in gastric cancer-staging laparoscopy and its alternatives

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World Journal of Gastrointestinal Surgery 2023年第10期15卷 2280-2293页

作者： Si Ying Adelina Ho kon Voi Tay Lee kong Chian School of Medicine Singapore 308232Singapore Upper GI and Bariatric Division General SurgeryTan Tock Seng HospitalSingapore 308433Singapore Upper GI and Bariatric Division General SurgeryWoodlands HealthSingapore 768024Singapore

BACKGROUND Gastric cancer is one of the leading causes of cancer burden and mortality,often resulting in peritoneal metastasis in advanced stages with negative survival *** laparoscopy has become standard practice for suspected cases before a definitive gastrectomy or *** systematic review aims to compare the efficacy of other diagnostic modalities instead of staging laparoscopy as the alternatives are able to reduce cost and invasive staging ***,a radiomic model based on computed tomography and positron emission tomography(PET)has also emerged as another method to predict peritoneal *** To determine if the efficacy of computed tomography,magnetic resonance imaging and PET is comparable with staging *** Articles comparing computed tomography,PET,magnetic resonance imaging,and radiomic models based on computed tomography and PET to staging laparoscopies were filtered out from the Cochrane Library,EMBASE,PubMed,Web of Science,and Reference Citations Analysis(https://***/).In the search for studies comparing computed tomography(CT)to staging laparoscopy,five retrospective studies and three prospective studies were ***,five retrospective studies and two prospective studies were also included for papers comparing CT to PET *** one retrospective study and one prospective study were found to be suitable for papers comparing CT to magnetic resonance imaging *** Staging laparoscopy outperformed computed tomography in all measured aspects,namely sensitivity,specificity,positive predictive value and negative predictive *** resonance imaging and PET produced mixed results,with the former shown to be only marginally better than computed *** performed slightly better than PET in most measured domains,except in specificity and true negative *** speculate that this may be due to the limited F-fluorodeoxyglucose uptake in small peri

关键词： Gastric cancer Peritoneal metastases Computed tomography Positron emission tomography Magnetic resonance imaging Staging laparoscopy

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Experimental symmetric private information retrieval with measurement-device-independent quantum network

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Light(Science & Applications) 2022年第10期11卷 2399-2405页

作者： Chao Wang Wen Yu kon Hong Jie Ng Charles C.-W.Lim Department of Electrical&Computer Engineering National University of SingaporeSingaporeSingapore Centre for Quantum Technologies National University of SingaporeSingaporeSingapore

Secure information retrieval is an essential task in today's highly digitised *** some applications,it may be necessary that user query's privacy and database content's security are *** these settings,symmetric private information retrieval(SPIR)could be employed,but its implementation is known to be demanding,requiring a private key-exchange network as the base ***,we report for the first time a realisation of provably-secure SPIR supported by a quantum-secure key-exchange *** SPIR scheme looks at biometric security,offering secure retrieval of 582-byte fingerprint files from a database with 800 *** experimental results clearly demonstrate the feasibility of SPIR with quantum secure communications,thereby opening up new possibilities in secure distributed data storage and cloud computinq over the future Quantum Internet.

关键词： database network quantum

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Multiple-patterning colloidal lithography-implemented scalable manufacturing of heat-tolerant titanium nitride broadband absorbers in the visible to near-infrared

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Microsystems & Nanoengineering 2021年第2期7卷 51-58页

作者： Dasol Lee Myeongcheol Go Minkyung Kim Junho Jang Chungryong Choi Jin kon Kim Junsuk Rho Department of Mechanical Engineering Pohang University of Science and Technology(POSTECH)Pohang37673Republic of Korea Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)Pohang37673Republic of Korea National Institute of Nanomaterials Technology(NINT) Pohang37673Republic of Korea

Broadband perfect absorbers have been intensively researched for decades because of their near-perfect absorption optical property that can be applied to diverse applications. Unfortunately, achieving large-scale and heat-tolerant absorbers has been remained challenging work because of costly and time-consuming lithography methods and thermolability of materials, respectively. Here, we demonstrate a thermally robust titanium nitride broadband absorber with >95% absorption efficiency in the visible and near-infrared region (400–900 nm). A relatively large-scale (2.5 cm × 2.5 cm) absorber device is fabricated by using a fabrication technique of multiple-patterning colloidal lithography. The optical properties of the absorber are still maintained even after heating at the temperatures >600 ∘C. Such a large-scale, heat-tolerant, and broadband near-perfect absorber will provide further useful applications in solar thermophotovoltaics, stealth, and absorption controlling in high-temperature conditions.

关键词： absorber titanium absorption

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PREPARATION OF ULTRAFINE MONODISPERSE SILVER CHLORIDE PARTICLES IN NON-IONIC REVERSED MICELLES

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Chinese Chemical Letters 1995年第12期6卷 1095-1098页

作者： Fang Qiong TANG Junichi TANABE Takeshi KAWAI Kijiro kon-NO Institute of Photographic Chemistry Academia SinicaBeijing 100101 Department of Industrial Chemistry Science University of Tokyo1-3 KagurazakaShinjukuTokyo 162Japan

The ultrafine particles of silver chloride (AgCl) were obtained by mixing two separately prepared reversed micelle systems both containing a non-ionic surfactant,cyclohexane and an aqueous solution of either silver nitrate (AgNO3) or potassium chloride (KCl). The size distribution of spherical AgCl particles depended on the solubility behavior of aqueous electrolytes in surfactant solution. The NMR, near infrared,light-scattering, X-ray, UV spectroscopy and TEM (transmission electron microscopy) were used to examine the relationship between the size of particles and the states of solubilized water or reversed micelles. In the solubilized regions, it was found that three states of water were related to the formation of reversed and swollen micelles or W/O microemulsions. i.e, monodisperse particles were formed in reversed micelle and swollen micelle systems, whereas in W/O microemulsion system the particles became polydisperse.

关键词： R?

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A left-sided periappendiceal abscess in an adult with intestinal malrotation

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World Journal of Gastroenterology 2006年第33期12卷 5399-5400页

作者： Min Ro Lee Jong Hun Kim Yong Hwang Young kon Kim Department of Surgery Chonbuk National University Medical School San 2-20Geumam-dong Deokjin-gu Jeonju 561-756 South Korea Research Institute of ClinicalMedicine Chonbuk National University Medical School San2-20 Geumam-dong Deokjin-gu Jeonju 561-756 South Korea Department of Surgery Chonbuk National University Medical School San 2-20Geumam-dong Deokjin-gu Jeonju 561-756 South Korea Department of Diagnostic Radiology ChonbukNational University Medical School San 2-20 Geumam-dongDeokjin-gu Jeonju 561-756 South Korea

Left-sided periappendiceal abscesses occur in association with two types of congenital anomaly: intestinal malrotation and situs inversus. It is diffi cult to obtain an accurate preoperative diagnosis of these abscesses due to the abnormal position of the appendix. We present an unusual case of a left-sided periappendiceal abscess in an adult with intestinal malrotation, the diagnosis of which was a challenge.

关键词： Left-sided periappendiceal abscess intestinalmalrotation Diagnosis

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