0
Your cart

Your cart is empty

Browse All Departments
Price
  • R100 - R250 (34)
  • R250 - R500 (387)
  • R500+ (2,889)
  • -
Status
Format
Author / Contributor
Publisher

Books > Medicine > Surgery > General

One Heart-Embrace Life (Hardcover): Charles L. Garbarino One Heart-Embrace Life (Hardcover)
Charles L. Garbarino
R1,045 R906 Discovery Miles 9 060 Save R139 (13%) Ships in 10 - 15 working days

In his memoir, One Heart-Embrace Life, author Dr. Charles Garbarino recounts his journey of recovery and rebirth following open-heart surgery. He reveals his innermost thoughts and feelings, from his reaction to receiving the unexpected news that he required cardiac bypass surgery to his subsequent depression and suicidal thoughts. He openly wonders why God gave him this burden to carry, but finally decides not to just survive his heart attack but to embrace life and live it to the fullest.

"One Heart" also recounts the experiences of others, from people who have had cardiac setbacks to those who have lost loved ones in catastrophic natural disasters, to our military troops who have given the ultimate sacrifice. This memoir is about life and its many components, focusing primarily on the heart, both emotionally and physically. Its underlying theme is to embrace life by understanding how to move ahead when challenges cross your path-whether you're facing the loss of a child or the discovery of a medical crisis.

"One Heart-Embrace Life" celebrates the many facets of life and the importance of a life well lived. It follows Dr. Garbarino through each step along the path to recovery and includes contributions from health and religious professionals.

The lessons are priceless. The journey is like no other. Get ready for a book that will change the way you look at things, forever.

All proceeds of "One Heart - Embrace Life" will benefit the American Heart Association.

Surgical Research - Basic Principles and Clinical Practice (Hardcover, 3rd ed. 1998): J Black Surgical Research - Basic Principles and Clinical Practice (Hardcover, 3rd ed. 1998)
J Black; Edited by Hans Troidl, M.F. McKneally, David S. Mulder, A.S. Wechsler, …
R4,564 Discovery Miles 45 640 Ships in 10 - 15 working days

Surgical Research: Basic Principles and Clinical Practice, Third Edition is an excellent source book for the young surgical investigator as well as the senior investigator in surgery. It is divided into nine sections: The Surgeon as Investigator, Reading and Writing, Speaking and Listening, Design and Methods, Funding, Implementation, Analyzing Outcomes, Ethical Issues and Perspectives. The Third Edition has been updated and added to with 43 new chapters. This book is of special interest to those surgeons interested in doing research. However, it also has many very interesting chapters that would help all surgeons in approaching their practice in a more scientific way. With many of the foremost surgical investigators contributing, this book is an excellent collection of chapters covering the entire gamut of surgical research.

Surgical Nursing - Advancing Practice (Paperback): Kim Manley, Loretta Bellman Surgical Nursing - Advancing Practice (Paperback)
Kim Manley, Loretta Bellman
R1,851 Discovery Miles 18 510 Ships in 12 - 19 working days

This comprehensive book looks at the art and science of surgical nursing. Covering many of the essential issues relevant to the care of adults undergoing surgery in a range of settings, the text explores the nature of surgical nursing in all its guises, addressing challenging contemporary issues and measuring outcomes. It also explains the principles, whichunderlie the nursing care of patients throughout their surgical journey - from assessment and diagnosis, through pre- and intra-operative care, to the post-operative recovery phase and discharge. The physiological and scientific basis of practice is set out clearly and succinctly, while complex issues of care are explored through the use of reflection activities and short case studies. The text addresses issues, which will help nurses develop their role and their philosophy of care and assist in the improvement of patient management.The book looks at surgical nursing from the nurses not the surgeons point of view This is a British text, in a subject area dominated by US books

Laparoscopic Surgery - A Colloquium (Hardcover, 1999 ed.): Ronald C Merrell Laparoscopic Surgery - A Colloquium (Hardcover, 1999 ed.)
Ronald C Merrell; Edited by (associates) R. M. Olson
R4,390 Discovery Miles 43 900 Ships in 10 - 15 working days

In May 1997 the Faculty of Surgery from the University of Athens and elsewhere gathered with colleagues in Athens for the third time in 6 years to continue our discussions on the progress, problems, realization, and future of laproscopic surgery. The topics were rather inclusive with regard to the issues that defined the field, and the assembled investigators, educa tors, and clinicians brought a rich experience and clear vision of the field in the coming years. The decision had been made months before to collect our thoughts and experience as a colloquium of the state of laproscopic surgery in the tenth year following the report of Mouret on laparoscopic cholecy stectomy, not as the proceedings of the specific meeting. At the end of a decade of mercurial advance, heated debate, professional turmoil, and very little science, it was clear that general surgery would never be the same. Laproscopic surgery is now fully established and requires accommodation in the curriculum, practice, and research of surgery for the foreseeable future. This book is called a colloquium on laparoscopy because it collects the thoughts of many workers in the form of consensus presentations. It is offered to any surgeon who is ready to survey this field with clear eyes, absent of emotion or hyperbole, in our evolution of a better standard of care for surgical patients."

Gynecologic and Obstetric Surgery - Challenges and  Management Options (Hardcover): A. Coomarasamy Gynecologic and Obstetric Surgery - Challenges and Management Options (Hardcover)
A. Coomarasamy
R4,679 Discovery Miles 46 790 Ships in 12 - 19 working days

Gynecologic and obstetric surgery is a craft that requires sound knowledge and skills. The specifics of each individual case must be understood to enable the best surgical management approach and to minimize complications. This resource book offers insightful management options to many of the challenges a gynecologic or obstetric surgeon may face before, during and after an operation. Divided into two sections, the book first covers general preoperative, intraoperative and postoperative challenges and, second, specific surgical procedures. It provides advice on both general gynecologic and obstetric operations, as well as subspecialist areas such as reproductive surgery, urogynecology and gynecologic oncology. The chapters are concise, beginning with illustrative case histories followed by background, management options, and any preventative approaches. Designed to guide the surgeon to safe practice throughout all stages, they offer practical and step-by-step help.

Acute Care Surgery - Principles and Practice (Hardcover, 2007 ed.): L.D. Britt, Donald D. Trunkey, David V Feliciano Acute Care Surgery - Principles and Practice (Hardcover, 2007 ed.)
L.D. Britt, Donald D. Trunkey, David V Feliciano
R7,069 Discovery Miles 70 690 Ships in 10 - 15 working days

This book comprehensively presents the full spectrum of surgical emergencies. These include trauma and non-traumatic acute surgical diseases of the abdominal, pelvic, and cardiothoracic organs as well as the extremities, skin and soft tissue, and head and neck. Management of surgical infections is also discussed. This is the ideal reference text for surgical trainees as well as practicing surgeons. Authoritative, comprehensive, and user-friendly, the text features over 40 chapters complete with case studies as well as question and answer commentaries. The text is augmented by more than 500 tables and illustrations.

Please Explain Tonsillectomy & Adenoidectomy to Me - A Complete Guide to Preparing Your Child for Surgery, 3rd Edition... Please Explain Tonsillectomy & Adenoidectomy to Me - A Complete Guide to Preparing Your Child for Surgery, 3rd Edition (Hardcover, 3rd ed.)
Laurie Zelinger, Perry Zelinger
R600 Discovery Miles 6 000 Ships in 12 - 19 working days
Repair and Regeneration of Ligaments, Tendons, and Joint Capsule (Hardcover, 2006 ed.): William R. Walsh Repair and Regeneration of Ligaments, Tendons, and Joint Capsule (Hardcover, 2006 ed.)
William R. Walsh
R4,437 Discovery Miles 44 370 Ships in 10 - 15 working days

A comprehensive and authoritative review of the most important scientific and clinically relevant topics today in ligaments, tendons, and capsular biology, including their biomechanics and surgical reconstruction. The authors review the basic science of tendons in the hand and shoulder ligaments, the current clinical status of the shoulder and cruciate ligaments, and the latest advances in research on the healing of ligament and tendon to bone, artificial ligaments, and gene therapy. They also cover the major type 1 collagen soft tissues that are of particular interest to upper extremity surgeons and sports medicine specialists.

Pancreatic Cancer (Hardcover, 2002 ed.): Douglas B. Evans, Peter W.T. Pisters, James L. Abruzzese Pancreatic Cancer (Hardcover, 2002 ed.)
Douglas B. Evans, Peter W.T. Pisters, James L. Abruzzese
R5,950 Discovery Miles 59 500 Ships in 10 - 15 working days

The MD Anderson Solid Tumor Oncology series presents the most cutting-edge surgical treatment and medical therapy for specific sites. Each year, more than 26,000 people are diagnosed with pancreatic cancer, also called a "silent" disease because it does not usually exhibit early symptoms. This volume defines the current standard on multimodality care: surgery, chemotherapy, immunotherapy, gene therapy, radiotherapy, and a review of the latest research and clinical trials. It includes sections on: epidemiology/molecular biology, inherited pancreatic cancer syndromes, staging, various surgical techniques and outcomes, multimodality therapy and emerging and future therapies. The individual chapters focus on specific topics to produce a reference work of value to those interested in pancreatic cancer from a clinical and translational research perspective. A must-have for surgical oncologists and general surgeons.

Computational Surgery and Dual Training - Computing, Robotics and Imaging (Hardcover, 2014 ed.): Marc Garbey, Barbara Lee Bass,... Computational Surgery and Dual Training - Computing, Robotics and Imaging (Hardcover, 2014 ed.)
Marc Garbey, Barbara Lee Bass, Scott Berceli, Christophe Collet, Pietro Cerveri
R5,167 Discovery Miles 51 670 Ships in 12 - 19 working days

This critical volume focuses on the use of medical imaging, medical robotics, simulation, and information technology in surgery. Part I discusses computational surgery and disease management and specifically breast conservative therapy, abdominal surgery for cancer, vascular occlusive disease and trauma medicine. Part II covers the role of image processing and visualization in surgical intervention with a focus on case studies. Part III presents the important role of robotics in image driven intervention. Part IV provides a road map for modeling, simulation and experimental data. Part V deals specifically with the importance of training in the computational surgery area.

Color Blind 101 - 101 Tips and Stories to Understand, Embrace, and Live Your Best Life with Color Vision Deficiency... Color Blind 101 - 101 Tips and Stories to Understand, Embrace, and Live Your Best Life with Color Vision Deficiency (Hardcover)
Howexpert, Kim Springer
R782 Discovery Miles 7 820 Ships in 10 - 15 working days
Pancreatoduodenectomy (Hardcover, 1997 ed.): Fujio Hanyu, Ken Takasaki Pancreatoduodenectomy (Hardcover, 1997 ed.)
Fujio Hanyu, Ken Takasaki
R1,664 Discovery Miles 16 640 Ships in 10 - 15 working days

Alessandro Condivilla of Bologna first attempted a resection of the head of the pan creas in 1898, but several decades of further trial-and-error attempts ensued before the prototype procedure of pancreatoduodenectomy (PD) was established by Whipple in 1935. In the half-century following that landmark, refinements of surgical technique, including pancreatico-and bilio-entero anastomosis as well as develop ment of new technology to support perioperative management and patient care have contributed to the decrease in mortality and morbidity rates for obstructive jaundice and pancreatic fistula. The improvement in mortality and morbidity rates associated with PD has led to an increase in the number of patients undergoing the procedure and in the number of institutions performing it. Indications for PD have also been expanded. In the early years after PD was established as a viable procedure, periampullary carcinoma was the most common indication; now PD is indicated for a number of benign and malignant diseases. Some surgeons believe that PD is the procedure of choice for certain types of chronic pancreatitis, pancreatico-biliary maljunction, and pancreatic and duodenal trauma. Other surgeons have reported the necessity of PD for lymph node dissection of gallbladder carcinoma. Consequently, the basic procedure has been greatly modi fied to accommodate the specific conditions of each disease. For patients with malig nancy, extended procedures have been developed to improve the curative resection rate and ensure complete lymph node dissection.

Against-Medical-Advice Discharges from the Hospital - Optimizing Prevention and Management to Promote High Quality,... Against-Medical-Advice Discharges from the Hospital - Optimizing Prevention and Management to Promote High Quality, Patient-Centered Care (Hardcover, 1st ed. 2018)
David Alfandre
R3,621 Discovery Miles 36 210 Ships in 12 - 19 working days

This first-of-its-kind text provides a multidisciplinary overview of a significant problem in hospital-based healthcare: patients who decline inpatient medical care and leave the hospital against medical advice (AMA). Compared to standard hospital discharges, AMA discharges are associated with worse health and health services outcomes. Patients discharged AMA have been found to have disproportionately higher rates of substance use, psychiatric illness, and report stigmatization and reduced access to care. By providing a far reaching examination of AMA discharges for a wide academic and clinical audience, the book serves as a reference for clinical care, research, and the development of professional guidelines and institutional policy. The book provides both a broad overview of AMA discharges with chapters on the epidemiology, ethical and legal aspects, as well as social science perspectives. For clinicians in the disciplines of hospital medicine, pediatrics, emergency medicine, nursing, and psychiatry, the book also provides a patient-centered analysis of the problem, case-based discussions, and a discussion of best practices. This comprehensive review of AMA discharges and health care quality will interest physicians and other health care professionals, social workers, hospital administrators, quality and risk managers, clinician-educators, and health services researchers.

Technical and Biological Components of Marrow Transplantation (Hardcover, 1995 ed.): C.Dean Buckner, Reginald Clift Technical and Biological Components of Marrow Transplantation (Hardcover, 1995 ed.)
C.Dean Buckner, Reginald Clift
R8,337 Discovery Miles 83 370 Ships in 10 - 15 working days

Technical and Biological Components of Marrow Transplantation presents up to date information on the scientific and technological advances that will extend and improve the clinical application of bone marrow transplantation. The book includes the latest information on chronic myeloid leukemia and thalassemia; advances in supportive care: cytokines and progenitor expansion; and cord stem cell technology. Soon more of patients will receive marrow transplants as part of the therapy for solid tumors and metabolic disease than for the treatment of hematologic disease. The contributors to this volume describe some of these applications, hinting at yet further, exciting possibilities.

Reoperative Pediatric Surgery (Hardcover, 2008 ed.): Steven Teich, Donna A. Caniano Reoperative Pediatric Surgery (Hardcover, 2008 ed.)
Steven Teich, Donna A. Caniano
R5,739 Discovery Miles 57 390 Ships in 10 - 15 working days

Reoperative surgery is a problem that is confronted by every surgeon and this book offers up-to-date information and techniques for critical cases in all of the pediatric surgical specialties. The book is comprehensive, covering the full spectrum of pediatric reoperation, and it addresses the complications of common pediatric surgeries. This book is an essential resource for both surgeons and non-surgeons involved in the care of pediatric patients.

Shoulder Arthroplasty (Hardcover, 2005 ed.): Louis U. Bigliani, Evan L. Flatow Shoulder Arthroplasty (Hardcover, 2005 ed.)
Louis U. Bigliani, Evan L. Flatow
R5,133 Discovery Miles 51 330 Ships in 10 - 15 working days

A practical and richly illustrated step-by-step guide to successfully performing shoulder arthroplasty. The comprehensive text covers various topics, and also provides specific examples of complications and how to avoid and correct them.

Endocrine Neoplasia (Hardcover, 2010 Ed.): Cord Sturgeon Endocrine Neoplasia (Hardcover, 2010 Ed.)
Cord Sturgeon
R4,398 Discovery Miles 43 980 Ships in 10 - 15 working days

Endocrine Neoplasia is a comprehensive, updated, and clearly-written text covering the diseases for which endocrine surgical expertise is often needed. We look towards advances in the science and the art of endocrine surgery to continuously improve outcomes for our patients. The goal of this text was to provide a detailed description of both the underlying science of disease as well as the art of clinical management.

The book is divided into five sections addressing neoplasms of the thyroid, parathyroid, adrenal gland, neuroendocrine pancreas, and multiple endocrine neoplasia. Experts from the United States, Canada, and Australia have contributed chapters addressing both the biology of endocrine tumors and the clinical management of disease. Recent discoveries regarding the genetic underpinnings of disease are highlighted. Updated consensus guidelines were used for clinical recommendations. The management of complex and often confusing clinical problems is discussed in detail.

Adventures of Carmelo-Going to The Hospital (Hardcover): Fred Berri Adventures of Carmelo-Going to The Hospital (Hardcover)
Fred Berri
R574 Discovery Miles 5 740 Ships in 10 - 15 working days
Surgical Systems - General Surgical Residency Curriculum (Hardcover, First Printing ed.): Timothy S. Hall Surgical Systems - General Surgical Residency Curriculum (Hardcover, First Printing ed.)
Timothy S. Hall
R1,057 Discovery Miles 10 570 Ships in 12 - 19 working days
Heart Failure - Mechanisms and Management (Hardcover, 1991. 2nd Print): Basis S. Lewis, Asher Kimchi Heart Failure - Mechanisms and Management (Hardcover, 1991. 2nd Print)
Basis S. Lewis, Asher Kimchi
R2,620 Discovery Miles 26 200 Ships in 12 - 19 working days

This book deals with heart failure in all its aspects, in- cluding chapters relating to receptor physiology and patho- physiological mechanisms, ventricular function and its assessment and the clinical aspects of heart failure in ischemic heart failure, cardiomyopathy, rheumatic heart disease and the timing of valve replacement. The pharmaco- therapy of heart failure deals with inotropic drugs, ACE in- hibitors, nitrates and calcium antagonists. Extending into the newer interventional techniques and surgical techniques the book includes chapters on balloon valvuloplasty, the po- tential use of the laser, the Jarvik artificial heart, car- diomyoplasty, left ventriculoplasty and heart and heart/lung transplantation.

The Immune Response to Implanted Materials and Devices - The Impact of the Immune System on the Success of an Implant... The Immune Response to Implanted Materials and Devices - The Impact of the Immune System on the Success of an Implant (Hardcover, 1st ed. 2017)
Bruna Corradetti
R4,940 Discovery Miles 49 400 Ships in 12 - 19 working days

This book provides a comprehensive overview of the cascade of events activated in the body following the implant of biomaterials and devices. It is one of the first books to shed light on the role of the host immune response on therapeutic efficacy, and reviews the state-of-the-art for both basic science and medical applications. The text examines advantages and disadvantages of the use of synthetic versus natural biomaterials. Particular emphasis is placed on the role of biomimicry in the development of smart strategies able to modulate infiltrating immune cells, thus reducing side effects (such as acute and chronic inflammation, fibrosis and/or implant rejection) and improving the therapeutic outcome (healing, tissue restoration). Current cutting-edge approaches in tissue engineering, regenerative medicine, and nanomedicine offer the latest insights into the role immunomodulation in improving tolerance during tissue transplant in the treatment of orthopaedic, pancreatic, and hepatic diseases. "Immune Response to Implanted Materials and Devices" is intended for an audience of graduate students and professional researchers in both academia and industry interested in the development of smart strategies, which are able to exploit the self-healing properties of the body and achieve functional tissue restoration.

Hernia Repair Sequelae (Hardcover, 2nd): Volker Schumpelick, Robert J. Fitzgibbons Hernia Repair Sequelae (Hardcover, 2nd)
Volker Schumpelick, Robert J. Fitzgibbons
R3,733 Discovery Miles 37 330 Ships in 10 - 15 working days

Even the best hernia repair can result in postoperative difficulties for the patient caused by repair sequelae as for example pain, infertility, infection, adhesion and dislocation of the protheses. That can happen many years later and now, where the general principle of hernia repair is well understood all over the world, these sequelae are noticed more and more. To define them, to evaluate the absolute and relative risk of these sequelaes and to describe the ways of their prevention, diagnosis and treatment, the 5th Suvretta meeting had focussed on this subject. We discussed if there 's a principle risk by technique, material or both. The results of these discussions and the future handling and evaluation of this problem was the aim of this meeting. Even the best method can be made better by optimization of its single components.

Even the best hernia repair can result in postoperative difficulties for the patient caused by repair sequelae such as pain, infertility, infection, adhesion and dislocation of the prostheses. This can happen many years later, and now that the general principle of hernia repair is broadly understood all over the world, these sequelae are being noticed more and more. The 5th Suvretta meeting was held in order to define these sequelae, to evaluate the absolute and relative risks they pose, and to discuss the methods of their prevention, diagnosis and treatment. We discussed whether the principal risk was related to technique, material or both. This discussion and the future approach to and evaluation of this problem were the aims of the meeting, working on the premise that even the best method can be made better by optimizing its individual components.

Advanced Concepts of Minimally Invasive Abdominal Surgery (Hardcover): Judy Landis Advanced Concepts of Minimally Invasive Abdominal Surgery (Hardcover)
Judy Landis
R2,522 Discovery Miles 25 220 Ships in 12 - 19 working days
Cataract Surgery: Maximizing Outcomes Through Research (Hardcover, 2014 ed.): Hiroko Bissen-Miyajima, Douglas Donald Koch,... Cataract Surgery: Maximizing Outcomes Through Research (Hardcover, 2014 ed.)
Hiroko Bissen-Miyajima, Douglas Donald Koch, Mitchell Patrick Weikert
R4,703 R3,558 Discovery Miles 35 580 Save R1,145 (24%) Ships in 12 - 19 working days

Cataract Surgery: Maximizing Outcomes Through Research provides cataract surgeons with helpful information about cataract operations based on the latest fundamental and clinical research. This book comprehensively covers a wide range of topics from the basic principles of each treatment to today's hot topics such as femtosecond laser application, cataract surgery, and new intraocular lenses (IOLs) with accommodating or light-adjustable function. Detailed cutting-edge discussion is provided in each chapter with the addition of diagrams, photographs, and tables to help readers better understand the subject. Authored by leading international experts, the book covers topics from preoperative evaluations to postoperative care including evaluation of accommodation and pseudo-accommodation, glistening and visual function, the eye's image quality with a premium IOL, IOL power calculations, pupil size and postoperative visual function, posterior capsular opacity, corneal astigmatism, femtosecond laser techniques, and more. Cataract Surgery: Maximizing Outcomes Through Research is the perfect book for cataract surgeons and general ophthalmologists who wish to update their knowledge and make use of it in their everyday medical practice.

Recent Advances in Geriatrics (Hardcover, 1998 ed.): Mario Barbagallo, Giuseppe Licata, James R Sowers Recent Advances in Geriatrics (Hardcover, 1998 ed.)
Mario Barbagallo, Giuseppe Licata, James R Sowers
R4,607 Discovery Miles 46 070 Ships in 10 - 15 working days

This book, Recent Advances in Geriatrics, is based on the proceedings of the 8th Course of the School of Gerontology and Geriatrics held in Erice (Trapani, Italy) at the In ternational Centre for Scientific Culture "Ettore Majorana" on March 20-25, 1997. This international effort was organized jointly by professors from the University of Palermo (It aly) and from Wayne State University (Michigan, USA) as a result of a cross-cultural col laboration of several years. _ The increasing average age of the populations in industrialized countries has re sulted in increased interest in the different biological, medical, psychological, and eco nomic aspects related to the health and social care of the elderly. Physicians and health care practitioners are realizing the need for a revised approach to geriatric care. Comprising contributions of clinicians and scientists from Italy and North America, the present volume provides a multidisciplinary approach to many gerontological and geriatric problems, examined from a scientific and a practical point of view. Several of the most important aspects of the aging process - the genetics of aging, body composition modification, immunological, endocrinological, and renal physiology changes - have been addressed. Data from a multi-center Italian study on centenarians is reported, to gether with an update on clinical and pharmacological approaches to dementia syndromes and economic and social aspects related to the care of the elderly."

Free Delivery
Pinterest Twitter Facebook Google+
You may like...
Computer Time Travel - How to build a…
J.S. Walker Hardcover R1,029 R917 Discovery Miles 9 170
The Intellectual Journey of Thomas Berry…
Heather Eaton Hardcover R4,330 R3,044 Discovery Miles 30 440
Arduino - The ultimate Arduino guide for…
Craig Newport Hardcover R596 R540 Discovery Miles 5 400
C Programming - C Programming Language…
Adam Dodson Hardcover R598 R542 Discovery Miles 5 420
Dynamics of Neural Networks - A…
Michel J.A.M Van Putten Hardcover R2,481 Discovery Miles 24 810
Machine Learning and Artificial…
Chandrasekar Vuppalapati Hardcover R4,625 Discovery Miles 46 250
Advances in Imaging and Electron…
Peter W. Hawkes Hardcover R5,561 Discovery Miles 55 610
Wave Interactions with Coastal…
Tomohiro Suzuki, Corrado Altomare Hardcover R1,737 R1,500 Discovery Miles 15 000
Design and Analysis of Algorithms
Venugopal Temberveni, Sammulal Porika Hardcover R1,863 R1,593 Discovery Miles 15 930
X-ray Pulsar-based Navigation - Theory…
Wei Zheng, Yidi Wang Hardcover R2,887 Discovery Miles 28 870

 

Partners