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Highly efficient fiber to Si waveguide free-form coupler for foundry-scale silicon photonics

Photonics Research 2024年第5期12卷 1055-1066页

作者： luigi RANNO JIA Xu BRIAN SIA COSMIN POPESCU DREW WENINGER SAMUEL SERNA SHAOLIANG YU LIONEL C.KIMERLING ANURADHA AGARWAL TIAN GU JUEJUN HU Department of Materials Science&Engineering Massachusetts Institute of TechnologyCambridgeMassachusetts 02139USA Centre for Micro-&Nano-Electronics(CMNE) Nanyang Technological UniversitySingapore 639798Singapore Department of Physics Photonics and Optical EngineeringBridgewater State UniversityBridgewaterMassachusetts 02324USA Zhejiang Laboratory Hangzhou 311100China Materials Research Laboratory Massachusetts Institute of TechnologyCambridgeMassachusetts 02139USA

As silicon photonics transitions from research to commercial deployment,packaging solutions that efficiently couple light into highly compact and functional sub-micrometer silicon waveguides are imperative but remain *** 220 nm silicon-on-insulator(SOI)platform,poised to enable large-scale integration,is the most widely adopted by foundries,resulting in established fabrication processes and extensive photonic component *** development of a highly efficient,scalable,and broadband coupling scheme for this platform is therefore of paramount *** two-photon polymerization(TPP)and a deterministic free-form micro-optics design methodology based on the Fermat’s principle,this work demonstrates an ultraefficient and broadband 3-D coupler interface between standard SMF-28 single-mode fibers and silicon waveguides on the 220 nm SOI *** coupler achieves a low coupling loss of 0.8 dB for the fundamental TE mode,along with 1 dB bandwidth exceeding 180 *** broadband operation enables diverse bandwidthdriven applications ranging from communications to ***,the 3-D free-form coupler also enables large tolerance to fiber misalignments and manufacturing variability,thereby relaxing packaging requirements toward cost reduction capitalizing on standard electronic packaging process flows.

关键词： fiber waveguide enable

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科技纵览 2024年第7期 36-43,4页

作者： Emily Waltz luigi Avantaggiato(摄影) 不详

在威尼斯工业区的一个集装箱内,意大利初创企业9-Tech正在尝试解决一个日益严峻的全球问题:预计到2050年达到使用寿命的太阳能模块将有5400万到1.6亿吨,如何负责任地回收它们?回收这些材料并不容易。太阳能电池板能够在地球任何环境中服... 详细信息

在威尼斯工业区的一个集装箱内,意大利初创企业9-Tech正在尝试解决一个日益严峻的全球问题:预计到2050年达到使用寿命的太阳能模块将有5400万到1.6亿吨,如何负责任地回收它们?回收这些材料并不容易。太阳能电池板能够在地球任何环境中服役20到30年,即使在阳光下放置了30年,这些硬件也很难拆卸。事实上,大多数回收厂家会丢弃旧太阳能电池板中最有价值但最难获取的材料一一硅、银和铜,而只回收铝框架和玻璃板。

关键词：太阳能电池板初创企业集装箱最有价值玻璃板工业区威尼斯使用寿命

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Post Cryopreservation Growth Kinetic and Photosynthetic Assessment of an Acid Tolerant Strain of Stichococcus bacillaris

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Natural Resources 2024年第5期15卷 130-148页

作者： Marzia Licata luigi Marra Nunzia Nappi Elena Aurino Feliciana Oliva Antonino De Natale Donato Giovannelli Antonino Pollio Department of Biology University of Naples &#8220Federico II&#8221 Naples Italy ACUF Algal Collection of University of Naples &#8220Federico II&#8221 Naples Italy Department of Chemical Materials and Industrial Production Engineering University of Naples &#8220Federico II&#8221 P.le V. Tecchio Naples Italy Institute for Marine Biological Resources and Biotechnologies Italian National Research Council CNR-IRBIM Ancona Italy Earth-Life Science Institute ELSI Tokyo Institute of Technology Tokyo Japan Marine Chemistry and Geochemistry Department Woods Hole Oceanographic Institution Woods Hole MA USA Department of Marine and Coastal Science Rutgers University New Brunswick NJ USA

Preserving microbial diversity has become a strategic undertaking. Thus, ex situ microalgal culture conservation results in strategic and functional resource in both biodiversity protection and application domains. Cryopreservation of microalgae has been practiced since the 1960s and is now considered the optimal preservation strategy. Furthermore, the overall monitoring during growth of cultures after freezing/thawing protocols was hardly investigated and there is poor evaluation related to preserve especially the photosystem apparatus. The present study focuses on Stichococcus bacillaris as case study for short-term cryopreservation at −80 °C storage. Various freezing pretreatments using cryoprotective agents, and two thawing methods were compared introducing a novel variable to evaluate viability recovery and assessing growth kinetics of cultures immediately after thawing and after a series batch cultivation. Photosynthetic rate and pigments assessment were proposed to evaluate hidden metabolic cell damage. Results underline cryoprotective agents can increase the kinetic recovery of preserved cells in terms of reduction of lag phase during batch cultivation tests: the use of dimethyl sulfoxide and glycerol granted a growth comparable to unpreserved cells when sudden thawing occurs after 24 hours of storage, but recovery after preservation is less sensitive to cryoprotective agents when gradual thawing and 1 month of storage is considered. However, cells are always able to restore their physiological pathways even without agents, so their kinetic effect has been proved and quantified. Interestingly, both the photosynthetic efficiency and the ratio between total chlorophyll and carotenoids are comparable (0.75 Fv/Fm, 2.2 ± 0.25 g/g) to unpreserved cells and they are unsensitive to chosen agents, but the ratio between chlorophyll a and chlorophyll b was clearly altered (up to 10 times), suggesting that photoactive pigments relative proportions

关键词： Microalgae Stichococcus bacillaris Cryopreservation Growth Kinetic Photosynthetic Rate

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Minimally invasive surgical therapies(MISTs)for lower urinary tract symptoms(LUTS):promise or panacea?

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Asian Journal of Andrology 2024年第2期26卷 135-143页

作者： Gian Maria Busetto Andrea Checchia Marco Recchia Edoardo Tocci Ugo G Falagario Gennaro Annunziata Pasquale Annese Nicola d'Altilia Vito Mancini Matteo Ferro Felice Crocetto Octavian Sabin Tataru Luca Di Gianfrancesco Angelo Porreca Francesco Del Giudice Ettore De Berardinis Carlo Bettocchi luigi Cormio Giuseppe Carrieri University of Foggia Foggia 71122Italy Department of Urology and Renal Transplantation Policlinico of FoggiaFoggia 71122Italy Urology Unit "G.Tatarlla"HospitalCerignola 71042Italy Urology Unit European Institute of Oncology(IE0)IRCcSMilan 20141Italy University of Naples Federico Il Naples 80126Italy G.E.Palade University of Medicine PharmacyScienceand Technology of Targu MuresTargu Mures 540142Romania Department of Oncological Urology Veneto Institute of Oncology(IOv)IRccSPadua 35128Italy Department of Maternal-Infant and Urological Sciences Sapienza Rome UniversityRoma 00161Italy Urology Unit "L.Bonomo"HospitalAndria 76123Italy

The increasing importance of treatment of lower urinary tract symptoms(LUTS),while avoiding side effects and maintaining sexual function,has allowed for the development of minimally invasive surgical therapies(MiSTs).Recently,the European Association of Urology guidelines reported a paradigm shift from the management of benign prostatic hyperplasia(BPH)to the management of nonneurogenic male *** aim of the present review was to evaluate the efficacy and safety of the most commonly used MisTs:ablative techniques such as aquablation,prostatic artery embolization,water vapor energy,and transperineal prostate laser ablation,and nonablative techniques such as prostatic urethral lift and temporarily implanted nitinol device(iTIND).MiSTs are becoming a new promise,even if clinical trials with longer follow-up are still *** of them are still under investigation and,to date,only a few options have been given as a recommendation for *** cannot be considered as standard of care and are not suitable for all *** and disadvantages should be underlined,without forgetting our objective:treatment of LUTS and re-treatment avoidance.

关键词： aquablation iTIND prostatic artery embolization prostatic urethral lift transperineal prostate laser ablation water vapor energy

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Pain management in acute musculoskeletal injury: Effect of opioid vs nonopioid medications

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World Journal of Orthopedics 2024年第9期15卷 882-890页

作者： Marco Fiore luigi Aurelio Nasto Eleni McCaffery Fannia Barletta Angela Visconti Francesca Gargano Enrico Pola Maria Caterina Pace Department of Women Child and General and Specialized SurgeryUniversity of Campania“Luigi Vanvitelli”Naples 80138Italy Department of Orthopaedics University of Campania“Luigi Vanvitelli”Naples 80138Italy Department of Emergency Medicine New York Presbyterian-Brooklyn Methodist HospitalNew YorkNY 11215United States Department of Anesthesia and Intensive Care “San Carlo”HospitalPotenza 85100Italy Department of Anaesthesia “San Giuliano”HospitalGiugliano 80014Italy Unit of Anesthesia and Intensive Care The Fondazione Policlinico Universitario Campus Bio-MedicoRome 00128Italy

BACKGROUND The use of opioids for pain is linked to an increased risk of developing opioid use disorder,and has resulted in the emergence of the opioid crisis over the last few *** The systematic review question is“How does the use of opioid medications in pain management,compared with non-opioid medications,affect pain intensity over the short,intermediate,and long-term in adults with acute traumatic pain?”.METHODS The protocol was prospectively registered on the International Prospective Re-gister of Systematic Reviews:*** and Google Scholar were electronically searched for controlled peer-reviewed studies published in full,with the PICO framework:P:Adult patients with traumatic injuries,I:Opioid medications,C:Non-opioid medi-cations,O:A minimum clinically important difference(MCID)in *** After full-text screening,we included 14 studies in the qualitative *** these 14 studies,12 were rando-mized clinical trials(RCTs)and 2 were pseudo-RCTs with a total of 2347 patients *** was heteroge-neity in both medication utilized and outcome in these studies;only two studies were homogeneous regarding the type of study conducted,the opioid used,its comparator,and the outcome *** MCID was evaluated in 8 studies,while in 6 studies,any measured pain reduction was considered as an *** 11 cases,the setting of care was the Emergency Department;in 2 cases,care occurred out-of-hospital;and in one case,the setting was not *** included studies were found to have a low-moderate risk of *** Non-opioids can be considered an alternative to opioids for short-term pain management of acute musculoskeletal *** ketamine may cause more adverse events than other routes of administration.

关键词： Acute musculoskeletal injury Acute traumatic pain Non-opioid analgesia Non-opioid pain control Opioid-sparing analgesia Opioid crisis Opioid disorder Systematic review

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Fat or fillers:The dilemma in eyelid surgery

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World Journal of Clinical Cases 2024年第17期12卷 2951-2965页

作者： Giovanni Miotti Luca De Marco Davide Quaglia Martina Grando Carlo Salati Leopoldo Spadea Caterina Gagliano Mutali Musa Pier luigi Surico Pier Camillo Parodi Marco Zeppieri Department of Plastic Surgery University Hospital of UdineUdine 33100Italy Department of Internal Medicine Azienda Sanitaria Friuli OccidentaleSan Vito al Tagliamento 33078Italy Department of Ophthalmology University Hospital of UdineUdine 33100Italy Eye Clinic Policlinico Umberto I“Sapienza”University of RomeRome 00142Italy Department of Medicine and Surgery University of Enna“Kore”Enna 94100Italy Eye Clinic Catania University San Marco Hospital Viale Carlo Azeglio CiampiCatania 95121Italy Department of Optometry University of BeninBenin 300283Nigeria Department of Ophthalmology Africa Eye Laser CentreKm 7Benin 300105Nigeria Schepens Eye Research Institute of Mass Eye and Ear Harvard Medical SchoolBostonMA 02114United States

The aging of the periocular region has always aroused great interest.A fresh,young,and attractive sight determined an ever-greater attention to surgical and non-surgical techniques to obtain this *** particular,the change in the concept of a young look,considered then“full”,led to the increasing use of surgical(fat grafting)or medical(hyaluronic acid)filling *** rejuvenation became increasingly popular in the field of cosmetic treatments,with a focus on achieving a youthful and refreshed *** the various techniques available,the choice between using fat grafting or fillers presented a clinical *** particular,what surgery considered of fundamental importance was a long-lasting result over *** the other hand,aesthetic medicine considered it fundamental not to have to resort to invasive *** what was the reality?Was there one path better than the other,and above all,was there a better path for patients?The minireview aims to explore the physiopathology,diagnosis,treatment options,prognosis,and future studies regarding this *** analyzed the literature produced in the last 20 years comparing the two *** literature reveals advancements in biomaterials,stem cell research and tissue engineering held promise for further enhancing the field of eyelid *** choice between fat grafting and fillers in eyelid cosmetic treatments presented a clinical *** physiopathology,accurately diagnosing eyelid aging,exploring treatment options,assessing prognosis,and conducting future studies were essential for providing optimal care to patients seeking eyelid rejuvenation.

关键词： Stem cells Adipose stem cell Ocular therapy Oculoplastics Regenerative

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On the emission lines in active galactic nuclei with relativistic jets

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Research in Astronomy and Astrophysics 2012年第4期12卷 359-368页

作者： luigi Foschini INAF-Osservatorio Astronomico di Brera Via E. Bianchi 46 23807 Merate (LC) Italy

The effect of the observed continuum emitted from a relativistic jet on the measurement of the full width at half maximum （FWHM） of an emission line is analyzed. If the jet contribution is not properly subtracted, the FWHM of the line could seem narrower than it should. The cases of an emission line detected in BL Lac objects and γ-ray Narrow-Line Seyfert 1 galaxies （γ-NLS1s） are addressed. It is shown that the smallness of the observed FWHM of the Lyα lines detected in three well-known BL Lacs is an effect due to the combined action of both the relativistic jet and a weak accretion disk. Once the Doppler boosting effect of the jet continuum is removed, the intrinsic FWHM values of the lines are found to be in the usual range. By contrast, the narrow permitted lines in γ-NLS1s are really narrow, since the disk and the lines are much more powerful. This also confirms that γ-NLS1 is really a new class of γ-ray emitting AGN, different from blazars and radio galaxies.

关键词： line: profiles—galaxies: jets—BL Lacertae Objects: general—galaxies: Seyfert

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The pseudogenes of eukaryotic translation elongation factors (EEFs): Role in cancer and other human diseases

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Genes & Diseases 2022年第4期9卷 941-958页

作者： luigi Cristiano R&D Division Prestige18 via VecchiaTerranuova BraccioliniAR 52028Italy

The eukaryotic translation elongation factors (EEFs), i.e. EEF1A1, EEF1A2, EEF1B2, EEF1D, EEF1G, EEF1E1 and EEF2, are coding-genes that play a central role in the elongation step of translation but are often altered in cancer. Less investigated are their pseudogenes. Recently, it was demonstrated that pseudogenes have a key regulatory role in the cell, especially via non-coding RNAs, and that the aberrant expression of ncRNAs has an important role in cancer development and progression. The present review paper, for the first time, collects all that published about the EEFs pseudogenes to create a base for future investigations. For most of them, the studies are in their infancy, while for others the studies suggest their involvement in normal cell physiology but also in various human diseases. However, more investigations are needed to understand their functions in both normal and cancer cells and to define which can be useful biomarkers or therapeutic targets.

关键词： Cancer EEFs Non-coding RNA Pseudogene Translation Translation elongation factor

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奈妥匹坦帕洛诺司琼预防化疗引起的恶心呕吐:从临床试验到日常临床实践

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中国实用医药 2024年第1期19卷 159-174页

作者： Matti Aapro Karin Jordan Florian Scotté luigi Celio Meinolf Karthaus Eric Roeland Genolier Cancer Centre Clinique de GenolierGenolierSwitzerland Department Haematology Oncology and Palliative CareErnst von Bergmann Klinikum PotsdamPotsdamGermany Department of Medicine V HematologyOncology and RheumatologyUniversity Hospital HeidelbergHeidelbergGermany Interdisciplinary Cancer Course Department Gustave Roussy Cancer InstituteVillejuifFrance Medical Oncology Unit ASST del GardaDesenzano del Garda(BS)Italy Department of Hematology Oncology and Palliative CareKlinikum NeuperlachMunichGermany Department of Hematology Oncology and Palliative CareKlinikum HarlachingMunichGermany Oregon Health and Sciences University Knight Cancer InstitutePortlandORUSA

化疗引起的恶心呕吐(CINV)是众多抗癌药物治疗中常见的不良事件,不仅会对患者生活质量带来负面影响,还有可能影响化疗效果。目前,指南建议的止吐方案可以预防大部分癌症患者的CINV。但临床医师并不能始终遵循指南建议,患者也常常难以坚... 详细信息

化疗引起的恶心呕吐(CINV)是众多抗癌药物治疗中常见的不良事件,不仅会对患者生活质量带来负面影响,还有可能影响化疗效果。目前,指南建议的止吐方案可以预防大部分癌症患者的CINV。但临床医师并不能始终遵循指南建议,患者也常常难以坚持医师处方的治疗。因此需要采取一些提高指南依从性的方法。奈妥匹坦帕洛诺司琼(NEPA)是首个也是唯一一个固定剂量复方止吐药,由奈妥匹坦(口服)/福奈妥匹坦(静脉给药)与帕洛诺司琼(PALO)组成。NEPA可以联合地塞米松组成三联止吐方案,这是用于高致吐性化疗(HEC)患者和部分中致吐性化疗(MEC)患者预防CINV的推荐方案。因此,NEPA止吐治疗操作简单便捷,可能有助于提高指南依从性。本综述对CINV进行了概括,评价了在临床试验和真实实践中积累的NEPA止吐效果及安全性方面的证据,同时也评价了在关键临床试验之外的环境下,即日常临床环境中使用NEPA进行止吐的初步证据。此外,本文还评述了化疗期间使用NEPA控制恶心症状和提高患者生活质量,这是癌症患者管理中面临的两个大挑战。

关键词：奈妥匹坦帕洛诺司琼化疗引起的恶心呕吐 NK1受体拮抗剂 5-羟色胺-3受体拮抗剂生活质量止吐方案

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Overview of Al-based nanoenergetic ingredients for solid rocket propulsion

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Defence Technology（防务技术） 2018年第5期14卷 357-365页

作者： luigi T.DeLuca Politecnico di Milano MilanItaly Nanjing University of Science and Technology NanjingChina

The introduction of nano-sized energetic ingredients first occurred in Russia about 60 years ago and arose great expectations in the rocket propulsion community, thanks to the higher energy densities and faster energy release rates exhibited with respect to conventional ingredients. But, despite intense worldwide research programs, still today mostly laboratory level applications are reported and often for scientific purposes only. A number of practical reasons prevent the applications at industrial level: inert native coating of the energetic particles, nonuniform dispersion, aging, excessive viscosity of the slurry propellant, possible limitations in mechanical properties, more demanding safety issues, cost, and so *** paper describes the main features in terms of performance of solid rocket propellants loaded with nanometals and intends to emphasize the unique properties or operating conditions made possible by the addition of the nano-sized energetic ingredients. Steady and unsteady combustion regimes are examined.

关键词： Nanoaluminum Solid rocket propellant Burning rate Combustion Propulsion Performance

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