BayesFlow: Learning Complex Stochastic Models With Invertible Neural Networks.

Estimating the parameters of mathematical models is a common problem in almost all branches of science. However, this problem can prove notably difficult when processes and model descriptions become increasingly complex and an explicit likelihood function is not available. With this work, we propose a novel method for globally amortized Bayesian inference based on invertible neural networks that we call BayesFlow.

Versatile, high-power 460 nm laser system for Rydberg excitation of ultracold potassium.

We present a versatile laser system which provides more than 1.5 W of narrowband light, tunable in the range from 455-463 nm. It consists of a commercial titanium-sapphire laser which is frequency doubled using resonant cavity second harmonic generation and stabilized to an external reference cavity.

Refocusing research priorities in schools of nursing.

It is critical for schools of nursing to periodically reassess their scholarly programs to ensure that their conceptual framework and approaches address current challenges and enhance productivity. This article describes the process undertaken at Columbia University School of Nursing to evaluate scholarly enterprise so that it remains relevant and responsive to changing trends and to revise our research conceptual model to be reflective of the foci of our clinicians and researchers. As part of a larger strategic initiative, a two-phase Research Excellence Planning and Implementation Workgroup was convened, consisting of a broad representation of faculty and administrative staff, with an overall goal of expanding scholarly capacity.

Patient hand hygiene practices in surgical patients.

Background: Little is known about the hand hygiene practices of surgical patients. Most of the research has been directed at the health care worker, and this may discount the role that hand hygiene of the surgical patient might play in surgical site infections.

Methods: A quasiexperimental, pretest/post-test study was conducted in which patients (n = 72) and nurses (n = 42) were interviewed to examine perceptions and knowledge about patient hand hygiene.

Impact of a patient safety curriculum for nurse anesthesia students.

Patient safety has become an important aspect of national health care initiatives. The purpose of this evaluation was to measure the impact of a patient safety education series for students enrolled in a nurse anesthesia program. Baseline surveys that measured patient safety competencies across three domains, attitudes, skills and knowledge, were administered to the students.

[Our experience with cysts of the pancreas].

The Authors produced their series of pancreatic cysts and pseudocysts. In order to a correct surgical therapy they deem it essential to do the Wirsungraphia or the cysto-wirsungraphia to recognize the "communicating cyst" and the "non communicating cyst". The simple resection and the cystoparenchimal resection are the operations of choice but the cystoanastomosis provides suitable and definitive results in the same way.

[Emergency or deferred treatment of perforated and bleeding gastroduodenal ulcer].

The treatment of perforated peptic ulcer, according to the experience of the Authors (327 cases), must be very pressing and always surgical. The closure of the perforation, the simplest treatment, seems the most suitable and the least dangerous for the survival of the patient, even though 68% of these patients will have to undergo surgery again in the course of 10 years. The radical treatment of resection, is reserved to few and carefully chosen cases, because it is loaded with sufficient risk.

[Notes on 4000 surgical operations for biliary tract calculosis. I. Papillotomy and papillosphincterotomy. Indications and results].

Personal experience with papillotomy and papillosphincterotomy in calculosis of the PBD is reported. The indications and results obtained are discussed. The techniques employed are described and an assessment is made of the extent to which these operations can be performed without causing unnecessary damage to the sphincter.

[4,000 surgical operations for calculosis of the biliary tract. II. Bilio-digestive shunts: indications and results].

Personal experience with biliodigestive derivations in calculosis of the principal bile way is reported. The operating technique is presented and indications and results discussed. It is concluded that biliodigestive anastomosis must be carried out with an appropriate technique and in the presence of particular bile duct lesions, primarily choledochic ectasia.