Borehole thermal resistance is both an important design parameter and a key performance characteristic of a ground heat exchanger. Another quantity that is particularly important for ground heat exchangers is the internal thermal resistance between the heat exchanger pipes. Both these resistances can be calculated to a high degree of accuracy by means of the well-known multipole method. However, t

There are still no accepted criteria for the selection of patients with nonpalpable testes for laparoscopy versus a primary surgical exploration. We here report our experience using routine laparoscopy in such patients. The aim was to determine whether laparoscopy should be the first operative intervention or follow an inguinal exploration. Included in the study were 61 boys with 69 nonpalpable te

Purpose: The aim of this report is to establish the frequency and type of complications of laparoscopy-aided gastrostomy in pediatric practice and to identify patients at risk for postoperative complications. Method: This is a follow-up study of 98 children with nutritional problems including inability to swallow, inadequate calorie intake in neurologically impaired children, patients with cystic

The authors report the case of a child born with a gastroschisis and an ileal atresia. After surgery, only 100 cm small bowel and the distal one third of his colon remained. Perianastomotic ulcers developed 6 years later. These were treated successfully with ranitidin, a treatment not previously reported in the literature. The authors conclude that treatment with ranitidin was successful in a pati

Patients with xeroderma pigmentosum (XP) are highly sensitive to ultraviolet radiation and prone to develop multiple skin malignancies. We report two children under 6 years of age with XP who each developed two histologically different types of malignancies simultaneously. We conclude that it is of importance to be aware of the possibility of multiple malignancies of different types, even in young

An original one-puncture technique of performing laparoscopic gastrostomy is described. The implications are analysed. The results of five operations are presented and the advantages and limitations are discussed in the light of current available methods.

A gastrostomy button complication, not previously reported, is described. The button, with an inflatable balloon, was used for nutrition. The patient had had a gastrostomy for 4.5 y, with the same type of gastrostomy button for the previous 2 y and the same device for 1 y. The tip of the button caused a perforation of the posterior stomach wall, leading to death.

The experience of our 16 patients treated for membranous duodenal stenosis is reported. Their treatment and course was analysed in a retrospective study. Eight patients were operated on within the first 16 days of life and in the remaining group surgery was performed at 1 month to 4 y of age. The presenting symptom leading to diagnosis was, in all but one case, non-bile-stained vomiting. Associate

Background and Aims: The aim of this report is to describe a method for laparoscopy aided button gastrostomy in children. Material and Methods: The method includes the use of two ports, one umbilical and one subcostal on the left side. The stomach is exteriorized using a grasping forceps in the subcostal port. Under direct vision the gastrostomy button, MIC-KEY®, is inserted into the stomach at th

The objective of this report is to describe a new method of nonsuture end-to-end microvascular anastomosis. The vessels to be anastomosed are prepared separately before division by inserting a cylinder-shaped intravascular stent into each vessel. The anastomosis is completed after dividing the vessels. The vessels containing the stents are approximated. The anastomosis is then performed by sliding

A case of bilateral nonpalpable testes is described. Ultrasonography showed no testis. Laparoscopy revealed no intraabdominal testis, vas or vessels. Human chorionic gonadotrophine test suggested the presence of testicular tissue Computed tomography showed a testis present in each inguinal canal. Inguinal exploration confirmed the finding. This case stresses the importance of careful interpretatio

The management of duodenal atresia (DA) in two Scandinavian pediatric centers is reported. A total of 67 infants with DA were retrospectively analyzed. A high incidence of associated anomalies was present, including Down's syndrome in 40% and cardiac anomalies in 20% of the infants. No immediate postoperative mortality was noted. The operative procedures were duodenoduodenostomy and duodenojejunos

The clinical usefulness of the preoperative determination of C-Reactive protein (CRP) in patients with suspected acute appendicitis was studied in 156 consecutive patients undergoing acute appendicectomy. The CRP values were found to increase with an advancing stage of the appendiceal inflammation found at operation and the length of the preoperative phase of illness. Eight out of 66 patients with

The present author has investigated the frequency with which normal appendices are found at appendectomy in different phases of the menstrual cycle. The study is based on 504 female patients, 15–45 years of age, who were perated on for suspected acute appendicitis during the period from 1976 to 1982. The results are shown in Tables 1 and 2. The frequency of acute appendicitis in the luteal phase o

There are more child refugees in Europe than at any point since the end of the Second World War (Save the Children 2016). This is affecting both communities on the move and communities where uprooted people are resettling. A humanitarian problem on this scale demands a socially just response. For young refugees, education is a fundamental means of integrating into their new context and the act

In spatially heterogeneous environments, coexistence between competing species can be facilitated by spatially mediated tradeoffs. In this paper we develop a mechanistic model to investigate under which circumstances interspecific differences in the tradeoff between foraging efficiency and travel costs can allow two central place foraging species to coexist in spite of considerable overlap in reso