286 research outputs found
The Changing U.S. China Watching Community and the Demise of Engagement with the People’s Republic of China
Recent years have seen the rapid descent of relations between the United States and the People's Republic of China (prc). Hopes for cooperation in places of common concern like climate change gave way to strains in almost all areas. In place of "engagement,"the administration of Donald J. Trump adopted a tougher approach of "strategic competition"that its successor so far has continued. This article explores the relationship between the demise of engagement and opinions coming from the American China expert community. Specifically, it questions the impact on engagement of five secular dynamics that these China authorities have experienced - generational turnover; the field's vast expansion and diversification; increased disciplinary specialization; the enhanced prominence of the generalist in national security discussions in place of China specialists; and changes in the media leading to more skeptical journalistic voices on U.S.-prc relations. Without over-emphasizing either the influence of the expert community on U.S. decision-making, or underplaying the more repressive and authoritarian actions of the Chinese Communist Party, this article suggests that the China expert community has been more of a factor in the end of engagement than current accounts of academics and commentators acknowledge
American Power and International Theory at the Council on Foreign Relations, 1953-54
Between December 1953 and June 1954, the elite think-tank the Council on Foreign Relations (CFR) joined prominent figures in International Relations, including Pennsylvania’s Robert Strausz-Hupé, Yale’s Arnold Wolfers, the Rockefeller Foundation’s William Thompson, government adviser Dorothy Fosdick, and nuclear strategist William Kaufmann. They spent seven meetings assessing approaches to world politics—from the “realist” theory of Hans Morgenthau to theories of imperialism of Karl Marx and V.I. Lenin—to discern basic elements of a theory of international relations.
The study group’s materials are an indispensable window to the development of IR theory, illuminating the seeds of the theory-practice nexus in Cold War U.S. foreign policy. Historians of International Relations recently revised the standard narrative of the field’s origins, showing that IR witnessed a sharp turn to theoretical consideration of international politics beginning around 1950, and remained preoccupied with theory. Taking place in 1953–54, the CFR study group represents a vital snapshot of this shift
This book situates the CFR study group in its historical and historiographical contexts, and offers a biographical analysis of the participants. It includes seven preparatory papers on diverse theoretical approaches, penned by former Berkeley political scientist George A. Lipsky, followed by the digest of discussions from the study group meetings. American Power and International Theory at the Council on Foreign Relations, 1953–54 offers new insights into the early development of IR as well as the thinking of prominent elites in the early years of the Cold War
AXL modulates extracellular matrix protein expression and is essential for invasion and metastasis in endometrial cancer
The receptor tyrosine kinase AXL promotes migration, invasion, and metastasis. Here, we evaluated the role of AXL in endometrial cancer. High immunohistochemical expression of AXL was found in 76% (63/83) of advanced-stage, and 77% (82/107) of high-grade specimens and correlated with worse survival in uterine serous cancer patients. In vitro, genetic silencing of AXL inhibited migration and invasion but had no effect on proliferation of ARK1 endometrial cancer cells. AXL-deficient cells showed significantly decreased expression of phospho-AKT as well as uPA, MMP-1, MMP-2, MMP-3, and MMP-9. In a xenograft model of human uterine serous carcinoma with AXL-deficient ARK1 cells, there was significantly less tumor burden than xenografts with control ARK1 cells. Together, these findings underscore the therapeutic potentials of AXL as a candidate target for treatment of metastatic endometrial cancer
A phase II evaluation of cediranib in the treatment of recurrent or persistent endometrial cancer: An NRG Oncology/Gynecologic Oncology Group study
PURPOSE:
Cediranib is a multi-tyrosine kinase inhibitor targeting vascular endothelial growth factor (VEGF), platelet-derived growth factor (PDGF), and fibroblast growth factor (FGF) receptors. This phase II study was conducted to assess activity and tolerability of single-agent cediranib in recurrent/persistent endometrial cancer.
PATIENTS AND METHODS:
Eligible patients had recurrent or persistent endometrial cancer after receiving one or two prior cytotoxic regimens, measurable disease, and Gynecologic Oncology Group (GOG) performance status of ≤2 (≤1 if two prior cytotoxic regimens given). Cediranib 30mg orally daily for a 28daycycle was administered until disease progression or prohibitive toxicity. Microvessel density (MVD) was measured in tumor tissue from initial hysterectomy specimens and correlated with clinical outcome. Primary endpoints were tumor response and surviving progression-free for six months without subsequent therapy (6-month event-free survival [EFS]).
RESULTS:
Of 53 patients enrolled, 48 were evaluable for cediranib efficacy and toxicity. Median age was 65.5 years, 52% of patients had received prior radiation, and 73% of patients received only one prior chemotherapy regimen. A partial response was observed in 12.5%. Fourteen patients (29%) had six-month EFS. Median progression-free survival (PFS) was 3.65 months and median overall survival (OS) 12.5 months. No grade 4 or 5 toxicities were observed. A trend towards improved PFS was found in patients whose tumors expressed high MVD.
CONCLUSION:
Cediranib as a monotherapy treatment for recurrent or persistent endometrial cancer is well tolerated and met protocol set objectives for sufficient activity to warrant further investigation. MVD may be a useful biomarker for activity
Distributive and anti-distributive Mendelsohn triple systems
We prove that the existence spectrum of Mendelsohn triple systems whose
associated quasigroups satisfy distributivity corresponds to the Loeschian
numbers, and provide some enumeration results. We do this by considering a
description of the quasigroups in terms of commutative Moufang loops.
In addition we provide constructions of Mendelsohn quasigroups that fail
distributivity for as many combinations of elements as possible.
These systems are analogues of Hall triple systems and anti-mitre Steiner
triple systems respectively
Obese endometrial cancer survivors\u27 perceptions of weight loss strategies and characteristics that may influence participation in behavioral interventions
We aimed to evaluate obese endometrial cancer (EC) survivors\u27 perceptions of weight loss barriers and previously attempted weight loss methods and to identify characteristics that predicted willingness to enroll in a behavioral intervention trial. We administered a 27-question baseline survey at an academic institution to EC survivors with body mass index ≥ 30 kg/
Gynecologic oncology patient perspectives and knowledge on advance care planning: A quality improvement intervention
OBJECTIVES: Assess and improve advance care planning (ACP) awareness and uptake among gynecologic oncology patients.
METHODS: Using a quality improvement Plan-Do-Check-Act framework, we completed a single institution needs assessment and intervention. The needs assessment was a 26-question survey assessing baseline ACP knowledge and preferences of gynecologic oncology patients. We used this survey to implement an outpatient intervention in which patients were offered ACP resources (pamphlet, discussion with their gynecologic oncologist, and/or social work referral). We conducted a post-intervention survey among patients who had and had not received ACP resource(s) to assess whether our intervention increased ACP knowledge, discussions, or uptake.
RESULTS: Among 106 patients surveyed in the needs assessment, 33 % had ACP documents, 26 % had discussed ACP with a physician, and 82 % thought discussing ACP was important. The majority preferred these conversations in the outpatient setting (52 %) with their gynecologic oncologist (80 %) instead of nurses or trainees. In the intervention, 526 patients were offered ACP resources. Compared to women who did not receive resources (n = 324), patients who received ACP resource(s) (n = 202) were more likely to have ACP discussions with their gynecologic oncologist (38 % vs 68 %,
CONCLUSIONS: ACP uptake among gynecologic oncology patients is low, but ACP discussions with an oncologist during outpatient visits are important to patients and improve their knowledge regarding completing ACP documents
Quantification of ovarian lesion and fallopian tube vasculature using optical-resolution photoacoustic microscopy
The heterogeneity in the pathological and clinical manifestations of ovarian cancer is a major hurdle impeding early and accurate diagnosis. A host of imaging modalities, including Doppler ultrasound, MRI, and CT, have been investigated to improve the assessment of ovarian lesions. We hypothesized that pathologic conditions might affect the ovarian vasculature and that these changes might be detectable by optical-resolution photoacoustic microscopy (OR-PAM). In our previous work, we developed a benchtop OR-PAM and demonstrated it on a limited set of ovarian and fallopian tube specimens. In this study, we collected data from over 50 patients, supporting a more robust statistical analysis. We then developed an efficient custom analysis pipeline for characterizing the vascular features of the samples, including the mean vessel diameter, vascular density, global vascular directionality, local vascular definition, and local vascular tortuosity/branchedness. Phantom studies using carbon fibers showed that our algorithm was accurate within an acceptable error range. Between normal ovaries and normal fallopian tubes, we observed significant differences in five of six extracted vascular features. Further, we showed that distinct subsets of vascular features could distinguish normal ovaries from cystic, fibrous, and malignant ovarian lesions. In addition, a statistically significant difference was found in the mean vascular tortuosity/branchedness values of normal and abnormal tubes. The findings support the proposition that OR-PAM can help distinguish the severity of tubal and ovarian pathologies
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