367 research outputs found

    Development of a Consumer Reported Outcome Measure for Personal Care Products : The Rationale

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    © 2024 The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY), https://creativecommons.org/licenses/by/4.0/Background: Cosmetic products are one of the fastest-growing segments of personal care products in the United States. One of the critical elements in the sales and growth of cosmetics is leveraging claims. Unlike pharmaceuticals in the US, claims in personal care products are usually not reviewed nor require regulatory approvals before products are sold in the US. However, regulatory agencies have no oversight of how the advertisement is presented to the consumers and have cited known companies and brands for promoting deceptive advertising and forcing costly market withdrawal, impacting the financial values of investors and customers' confidence alike. Objectives: We conducted a literature search and a survey. The literature search was to identify the current methodologies available for substantiating the advertisement of personal care products (including cosmetics). The survey was conducted with regulatory professionals aiming to understand the use of the current methodologies. Methods: The survey was developed and distributed to regulatory professionals in different capacities within the Cosmetic and Personal Care industry who had extensive experience constructing and substantiating advertising claims regulatory for cosmetic and personal care products. The questionnaire comprised 9 questions with socio-demographic characteristics and regulatory experience validating claims. Results: We received 63 responses from 1354 forms sent from regulatory professionals validating advertising claims. The results show that 85 % of the respondents use the FDA guidance while the remaining 15 % use in-house or other non-governmental guides. Moreover, 58 % use some Risk Benefit, while 42 % do not use it when evaluating claim substantiation. Conclusion: Although the respondents qualifying the claims possess the experience and technical knowledge of Cosmetic and Personal Care Products, the presently available standards used in the US are not designed to validate the substantiation of advertising claims. Therefore, there is a need to develop a more robust methodology for the evaluation of the validation and substantiation of advertising claims. A technique of using personal experiences is already approved and used for pharmaceutical products known as Personal Reported Outcomes (PRO). Leveraging the PRO techniques can help develop a “consumer reported outcome measure” (CROM) tool for claim substantiation validation for the advertising of cosmetic and personal care products. Keywords : Personal Reported Outcomes, CROM, FDA, FTC, Cosmetic productsPeer reviewe

    An approximate solution to the optimal coordination problem for autonomous vehicles at intersections

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    In this paper, we address the problem of optimal and safe coordination of autonomous vehicles through a traffic intersection. We state the problem as a finite time, constrained optimal control problem, a combinatorial optimization problem that is difficult to solve in real-time. A low complexity computational scheme is proposed, based on a hierarchical decomposition of the original optimal control formulation, where a central coordination problem is solved together with a number of local optimal control problems for each vehicle. We show how the proposed decomposition allows a reduction of the complexity of the central problem, provided that approximated parametric solutions of the local problems are available beforehand. We derive conditions for the construction of the parametric approximations and demonstrate the method with a numerical example

    Optimisation-based coordination of connected, automated vehicles at intersections

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    In this paper, we analyse the performance of a model predictive controller for coordination of connected, automated vehicles at intersections. The problem has combinatorial complexity, and we propose to solve it approximately by using a two stage procedure where (1) the vehicle crossing order in which the vehicles cross the intersection is found by solving a mixed integer quadratic program and (2) the control commands are subsequently found by solving a nonlinear program. We show that the controller is persistently safe and compare its performance against traffic lights and two simpler optimisation-based coordination schemes. The results show that our approach outperforms the considered alternatives in terms of both energy consumption and travel-time delay, especially for medium to high traffic loads

    Robotic-Assisted Laparoscopic Management of Ureteral Endometriosis

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    This report describes 2 cases of ureteral obstruction secondary to endometriosis managed with robotic-assisted laparoscopic partial ureterectomy and ureteroneocystostomy

    Coordination of Cooperative Autonomous Vehicles Toward safer and more efficient road transportation

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    While intelligent transportation systems come in many shapes and sizes, arguably the most transformational realization will be the autonomous vehicle. As such vehicles become commercially available in the coming years, first on dedicated roads and under specific conditions, and later on all public roads at all times, a phase transition will occur. Once a sufficient number of autonomous vehicles is deployed, the opportunity for explicit coordination appears. This article treats this challenging network control problem, which lies at the intersection of control theory, signal processing, and wireless communication. We provide an overview of the state of the art, while at the same time highlighting key research directions for the coming decades

    Measurements of Si Hybrid CMOS X-Ray Detector Characteristics

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    The development of Hybrid CMOS Detectors (HCDs) for X-Ray telescope focal planes will place them in con- tention with CCDs on future satellite missions due to their faster frame rates, flexible readout scenarios, lower power consumption, and inherent radiation hardness. CCDs have been used with great success on the current generation of X-Ray telescopes (e.g. Chandra, XMM, Suzaku, and Swift). However their bucket-brigade read-out architecture, which transfers charge across the chip with discrete component readout electronics, results in clockrate limited readout speeds that cause pileup (saturation) of bright sources and an inherent susceptibility to radiation induced displacement damage that limits mission lifetime. In contrast, HCDs read pixels with low power, on-chip multiplexer electronics in a random access fashion. Faster frame rates achieved with multi-output readout design will allow the next generation's larger effective area telescopes to observe bright sources free of pileup. Radiation damaged lattice sites effect a single pixel instead of an entire row. Random access, multi-output readout will allow for novel readout modes such as simultaneous bright-source-fast/whole-chip-slow readout. In order for HCDs to be useful as X-Ray detectors, they must show noise and energy resolution performance similar to CCDs while retaining advantages inherent to HCDs. We will report on readnoise, conversion gain, and energy resolution measurements of an X-Ray enhanced Teledyne HAWAII-1RG (H1RG) HCD and describe techniques of H1RG data reduction.Comment: 11 pages, 10 figure

    Pooled safety analysis from phase III studies of trifluridine/tipiracil in patients with metastatic gastric or gastroesophageal junction cancer and metastatic colorectal cancer

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    Metastatic colorectal cancer; Renal impairment; SafetyCáncer colorrectal metastásico; Insuficiencia renal; SeguridadCàncer colorectal metastàtic; Insuficiència renal; SeguretatBackground Trifluridine/tipiracil (FTD/TPI) showed clinical benefit, including improved survival and manageable safety in previously treated patients with metastatic colorectal (mCRC) or gastric/gastroesophageal junction (mGC/GEJC) cancer in the phase III RECOURSE and TAGS trials, respectively. A pooled analysis was conducted to further characterize FTD/TPI safety, including management of haematologic toxicities and use in patients with renal or hepatic impairment. Patients and methods Adults with ≥2 prior regimens for advanced mGC/GEJC or mCRC were randomized (2 : 1) to FTD/TPI [35 mg/m2 twice daily days 1-5 and 8-12 (28-day cycle); same dosage in both trials] or placebo plus best supportive care. Adverse events (AEs) were summarized in the safety population (patients who received ≥1 dose) and analysed by renal/hepatic function. Results TAGS and RECOURSE included 335 and 533 FTD/TPI-treated and 168 and 265 placebo-treated patients, respectively. Overall safety of FTD/TPI was similar in TAGS and RECOURSE. Haematologic (neutropenia, anaemia) and gastrointestinal (nausea, diarrhoea) AEs were most commonly observed. Laboratory-assessed grade 3-4 neutropenia occurred in 37% (TAGS)/38% (RECOURSE) of FTD/TPI-treated patients (median onset: 29 days/55 days), and 96% (TAGS)/97% (RECOURSE) of cases resolved regardless of renal/hepatic function. Supportive medications for neutropenia were received by 17% (TAGS) and 9% (RECOURSE); febrile neutropenia was reported in 2% and 4%, respectively. Overall grade ≥3 AEs were more frequent in patients with moderate renal impairment [81% (TAGS); 85% (RECOURSE)] versus normal renal function (74%; 67%); anaemia and neutropenia were more common in patients with renal impairment. FTD/TPI safety (including haematologic AEs) was consistent across patients with normal and mildly impaired hepatic function. Conclusions These results support FTD/TPI as a well-tolerated treatment in patients with mGC/GEJC or mCRC, with a consistent safety profile. Safety was largely similar in patients with normal or mildly impaired renal/hepatic function; however, patients with renal impairment should be monitored for haematologic toxicities.This work was supported by Taiho Oncology, Inc. and Taiho Pharmaceutical (no grant number). This analysis was funded by Taiho Oncology, Inc. Professional medical writing and editorial assistance were provided by Vasupradha Vethantham, Meredith Kalish, and Jennifer L. Robertson at Ashfield MedComms, an Inizio company, funded by Taiho Oncology, Inc

    An Interior Point Algorithm for Optimal Coordination of Automated Vehicles at Intersections

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    In this paper, we consider the optimal coordination of automated vehicles at intersections under fixed crossingorders. We state the problem as a Direct Optimal Control problem, and propose a line-search Primal-Dual Interior Point algorithm with which it can be solved. We show that the problem structure is such that most computations required to construct the search- direction and step-size can be performed in parallel on-board the vehicles. This is realized through the Schur-complement of blocks in the KKT-matrix in two steps and a merit-function with separa- ble components. We analyze the communication requirements of the algorithm, and propose a conservative approximation scheme which can reduce the data exchange. We demonstrate that in hard but realistic scenarios, reductions of almost 99% are achieved, at the expense of less than 1% sub-optimality
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