This paper problematizes notions of good/bad mothering by putting to work Deleuze and Guattari’s haecceity. Focusing on babywearing, it presents an autoethnography my experiences becoming-mother during the Covid-19 pandemic. Using diffractive analysis, I analyze entanglement research diaries, images/selfies, regulations introduced pandemic, “global cultural script” being a good mother. It works...

We present a model of how DNA knots and links are formed as a result of a single recombination event, or multiple rounds of (processive) recombination events, starting with an unknotted, unlinked, or a (2,m)-torus knot or link substrate. Given these substrates, according to our model all DNA products of a single recombination event or processive recombination fall into a single family of knots ...

We show that, given any n and α, every embedding of any sufficiently large complete graph in R contains an oriented link with components Q1, . . . , Qn such that for every i 6= j, |lk(Qi, Qj)| ≥ α and |a2(Qi)| ≥ α, where a2(Qi) denotes the second coefficient of the Conway polynomial of Qi.

A 78-year-old male with multiple previous abdominal operations presented to the emergency department (ED) with abdominal pain and vomiting. Computed tomography (CT) revealed a small bowel obstruction. The emergency physician ordered a nasogastric tube and the nurse placed a 14 French catheter. The nurse encountered resistance upon advancement to just before the target length based on her initia...

A 28-week preterm baby was admitted to our neonatal intensive care unit (NICU). Due to surfactant deficiency lung disease, he was given surfactant and ventilated. He developed urinary retention and hence was catheterized with a size 4F feeding tube. When his clinical condition improved, it was decided to remove the catheter. While it was being removed, resistance was felt halfway through the pr...

It is well known that a jostled string tends to become knotted; yet the factors governing the "spontaneous" formation of various knots are unclear. We performed experiments in which a string was tumbled inside a box and found that complex knots often form within seconds. We used mathematical knot theory to analyze the knots. Above a critical string length, the probability P of knotting at first...

Type II DNA topoisomerases permit passages of double stranded DNA segments through each other and this is achieved via a complex mechanism involving a transient cleavage of one duplex, a passage of the second duplex through the topoisomerase-spanned cleavage site and finally resealing of the cut duplex. Type II DNA topoisomerases facilitate many DNA transactions requiring manipulation of long D...

In vivo DNA molecules are narrowly folded within chromatin fibers and self-interacting chromatin domains. Therefore, intra-molecular DNA entanglements (knots) might occur via DNA strand passage activity of topoisomerase II. Here, we assessed the presence of such DNA knots in a variety of yeast circular minichromosomes. We found that small steady state fractions of DNA knots are common in intrac...

BACKGROUND AND AIM In our study we aimed to compare laparoscopic intracorporeal knotting technique (base of the appendix was ligated with 20 cm of 2.0 silk) in patients with complicated acute appendicitis (CAA) and noncomplicated acute appendicitis. PATIENTS AND METHODS Ninety patients (female/male: 40/50, age ranging from 16 to 60 years, median age and interquartile range [IQR]: 25 [20; 32] ...