Concave compositions are compositions (i.e. ordered partitions) of a number in which the parts decrease up to the middle summand(s) and increase thereafter. Perhaps the most surprising result is for even length, concave compositions where the generating function turns out to be the quotient of two instances of the pentagonal number theorem with variations of sign. The false theta function disco...

Postoperative cognitive dysfunction (POCD) remains a serious complication with increasing importance. Cerebral dysfunction after surgery presents as stroke, delirium, or POCD. POCD is the post-operative disturbance of memory, and speed of information processing. The incidence of POCD is dependent on the type of procedure. The highest incidence of POCD occurs in patients undergoing cardiac surge...

We prove that the self-avoiding walk has Ornstein-Zernike decay and some related properties for all noncritical temperatures at which the model is defined.

This paper proves the formula

noise is a common and widespread problem in workplaces. noise can lead to hearing loss, hypertension, nervous and mental disorders, annoyance and stress, sleep disturbance, negative impact on productivity and working capacity. the undesirable effects of noise on an individual or group are called annoyance. some personal and social characteristics can affect on annoyance. this study was aimed to...

In 2002, over 110 000 people entered Britain to seek asylum—a 250% increase in five years. Children, who comprise at least a quarter of asylum seekers, are exposed to numerous risk factors for psychological disturbance, including exposure to violence, forced displacement, and multiple losses. 2 The rates of mental health problems in refugee children are uncertain, but the few studies that have ...

Porphyrias are inherited metabolic disorders resulting from a specific enzyme defect in the heme biosynthetic pathway. Porphyrias are induced by various precipitants. Clinical features include abdominal pain, neurologic manifestations, autonomic neuropathy, and mental disturbance. Diagnosis may be delayed because of variable symptoms that mimic other diseases and because of the rarity of of por...

The primary aim of this study was to examine associations between problematic Internet use, depression and sleep disturbance, and explore whether there were differential effects of problematic Internet use and depression on sleep disturbance. A total of 1772 adolescents who participated in the Shantou Adolescent Mental Health Survey were recruited in 2012 in Shantou, China. The Chinese version ...

INTRODUCTION Mental foramen (MF) is an important anatomic landmark in dentistry and knowledge about its variable locations (L) and type of emergence (TE), has an effect on the sufficiency of local anesthesia and safety of surgical procedures. The aim of this study was to evaluate the L and TE of this radiographic landmark as well as the presence of accessory MF, by means of cone-beam computed t...

CONTEXT Accessory mental foramen is a rare anatomical variation. Even so, in order to avoid neurovascular complications, particular attention should be paid to the possible occurrence of one or more accessory mental foramen during surgical procedures involving the mandible. CASE REPORT A 3-dimensional computed tomography (3D-CT) scan of a female patient revealed an accessory mental foramen on...