By performing a fully three dimensional Hartree-Fock calculation with use of the Skyrm forces, we demonstrate possibility of exotic deformations violating both the reflection and the axial symmetries of N = Z nuclei in A ∼ 60 − 80 mass region. The Y32 tetrahedral shape predicted in excited Zr arises from a shell gap at N,Z = 40 which is enhanced for the tetrahedron deformation. Softness toward ...

The purpose of this study is to define prognostic relationships between computer-derived nuclear morphological features, lymph node status, and tumor size in breast cancer. Computer-derived nuclear size, shape, and texture features were determined in fine-needle aspirates obtained at the time of diagnosis from 253 consecutive patients with invasive breast cancer. Tumor size and lymph node statu...

Introduction: Occupational exposure to ionizing radiation due to medical activities (both diagnostic and therapeutic procedures) has increased sharply in recent years. Among the occupationally exposed workers in these fields, those most affected by this increased exposure to ionizing radiation are nuclear medicine workers. In this study, annual average effective dose, annual collective effectiv...

Recent results indicate that the longevity of both invertebrates and vertebrates can be altered through genetic manipulation and pharmacological intervention. Most of these interventions involve alterations of one or more of the following: insulin/IGF-I signaling pathway, caloric intake, stress resistance and nuclear structure. How longevity regulation relates to aging per se is less clear, but...

Sixteen years after the promulgation of the reforms to Article 27 that regulates land tenure in Mexico, there is consensus among political authorities, public officials, private investors, and scholars that the outcomes have been completely different than were predicted. In spite of the important changes produced in the legal status, internal organization, and governmental interactions of the a...

This report is a preprint of a manuscript that has been submitted for possible journal publication. It should not be quoted or referenced without contacting the author to ensure it remains current. The author may be contacted at penelson@ne. The possibility of adapting risk analysis to events deemed to have infinite consequences is illustrated in the context of a simple dynamic two-event model....

Nuclear power plant status is monitored by a human operator. To enhance the operator’s capability to diagnose the nuclear power plant status in case of a transient, several systems were developed to identify the type of the transient. Few of them addressed the further question: how severe is the transient? In this paper, we explore the possibility of predicting the severity of a transient using...

BACKGROUND We previously reported the utility of preoperative nuclear morphometry for evaluating risk for cervical lymph node metastases in tongue squamous cell carcinoma. The risk for lymph node metastasis in oral squamous cell carcinoma, however, is known to differ depending on the anatomical site of the primary tumor, such as the tongue, gingiva, mouth floor, and buccal mucosa. In this study...