Complex bands k(⊥)(E) in a semiconductor crystal, along a general direction n, can be computed by casting Schrödinger's equation as a generalized polynomial eigenvalue problem. When working with primitive lattice vectors, the order of this eigenvalue problem can grow large for arbitrary n. It is, however, possible to always choose ...

More comprehensive investment is needed to abate the extreme disadvantage experienced in some Aboriginal communities.

ABSTRACT: BACKGROUND: "The gender gap" refers to a lifelong higher rate of emotional problems in girls, as compared to boys, that appears during adolescence. The gender gap is a well-replicated finding among older adolescents and is assumed to be a cross-cultural phenomenon. However, these cross-cultural studies have not investigated the ...

Abstract The Gapped Consecutive-Ones Property (C1P) Problem, or the (k, δ)-C1P Problem is: given a binary matrix M and integers k and δ, decide if the columns of M can be ordered such that each row contains at most k blocks of 1's, and no two neighboring blocks of 1's ...

Advocates say they are lifesavers, while critics call them Band-Aids. It's time for a second look at rapid-response teams and the clinicians who staff them.

The 2010 Measurement Problem comprised the determination of the reflectance of high-reflective dielectric mirrors at 1064nm.

A case report is presented in which the use of a "Band-Aid" adhesive dressing in a child for a trivial finger wound led to the development of full thickness necrosis requiring terminalisation of a digit.

Low-income youth experience social-emotional problems linked to chronic stress that are exacerbated by lack of access to care. Drumming is a non-verbal, universal activity that builds upon a collectivistic aspect of diverse cultures and does not bear the stigma of therapy. A pretest-post-test non-equivalent control group design was used to ...

The problem list is a critical component of the electronic medical record, with implications for clinical care, provider communication, clinical decision support, quality measurement and research. However, many of its benefits depend on the use of coded terminologies. Two standard terminologies (ICD-9 and SNOMED-CT) are available for problem documentation, and ...

When it comes to dementia, caregiving can have adverse effects on the psychological and physical health of the informal caregiver. As yet, little is known about the impact of caring for a young dementia patient. This review provides an overview of the literature concerning the impact of early onset dementia ...

Class switch DNA recombination (CSR) is the mechanism that diversifies the biological effector functions of antibodies. Activation-induced cytidine deaminase (AID), a key protein in CSR, targets immunoglobulin H (IgH) switch regions, which contain 5'-AGCT-3' repeats in their core. How AID is recruited to switch regions remains unclear. Here we show ...

Ig class switch recombination (CSR) and somatic hypermutation require activation-induced cytidine deaminase (AID). The search for AID-interaction factors has been a major research effort in the field, as the mechanism of preferential targeting of AID to Ig loci remains elusive. CTNNBL1 is one of the few identified AID-interacting factors and ...

Ab class switch recombination involves a recombination between two repetitive DNA sequences known as switch (S) regions that vary in length, content, and density of the repeats. Abs expressed by B cells are diversified by somatic hypermutation and class switch recombination. Both class switch recombination and somatic hypermutation are initiated ...

AIMS: To study the effect of a music programme during lunchtime on problem behaviour among institutionalised older residents with dementia. BACKGROUND: Symptoms of dementia among older people include depression, problems with memory, insomnia and problem behaviours. Problem behaviour has been identified by families and nurses as the greatest challenge that ...

Activation induced cytidine deaminase (AID) is critical for the diversification of immunoglobulin (Ig). AID is generally thought to function by deaminating cytidines into uridines in the target DNA within the Ig loci, and the subsequent processing of the uridines, through DNA repair or replication, could lead to three different forms ...

The onset and diagnosis of AIDS dementia marks a new dimension to living with HIV, an aspect few imagine or are equipped for. As a result of the profound changes that AIDS dementia makes to the ways the person with HIV acts, the life of significant others is similarly altered. ...

BACKGROUND: Somatic hypermutation introduces base substitutions into the rearranged and expressed immunoglobulin (Ig) variable regions to promote immunity. This pathway requires and is initiated by the Activation Induced Deaminase (AID) protein, which deaminates cytidine to produce uracils and UG mismatches at the Ig genes. Subsequent processing of uracil by mismatch ...

Activation-induced deaminase (AID) initiates somatic hypermutation, gene conversion and class switch recombination by deaminating variable and switch region DNA cytidines to uridines. AID is predominantly cytoplasmic and must enter the nuclear compartment to initiate these distinct antibody gene diversification reactions. Nuclear AID is relatively short-lived, as it is efficiently exported ...

The current study aims to (1) determine whether there is a relationship between the problems of patients with dementia and the psychosocial functioning of the caregiver, (2) determine whether these relationships exist independent of sociodemographic and caregiving-related variables, and (3) determine which type of problems of patients with dementia best ...

The cytidine deaminase AID (encoded by Aicda in mice and AICDA in humans) is critical for immunoglobulin class-switch recombination (CSR) and somatic hypermutation (SHM). Here we show that AID expression was induced by the HoxC4 homeodomain transcription factor, which bound to a highly conserved HoxC4-Oct site in the Aicda or ...

Activation-induced (cytidine) deaminase (AID) efficiently introduces multiple and diversified deaminations in immunoglobulin (Ig) variable and switch regions. Here, we review studies of AID, and the APOBEC family member, APOBEC3G, demonstrating that both enzymes introduce multiple deaminations by processive action on single-stranded DNA and that deaminations occur stochastically at hot- and ...

AIMS AND OBJECTIVE: To investigate the relationship between family caregivers' self-efficacy for managing behavioural problems of older people with dementia and their behavioural problems in Taiwan. BACKGROUND: Older people with dementia commonly have at least one behavioural problem, which caregivers complain is difficult to handle. To provide interventions that can ...

Activated B cells reshape their primary antibody repertoire after antigen encounter by two molecular mechanisms: somatic hypermutation (SHM) and class switch recombination (CSR). SHM and CSR are initiated by activation-induced cytidine deaminase (AID) through the deamination of cytosine residues on the immunoglobulin loci, which leads to the generation of DNA ...

Class switch DNA recombination (CSR) substitutes an immunoglobulin (Ig) constant heavy chain (C(H)) region with a different C(H) region, thereby endowing an antibody with different biological effector functions. CSR requires activation-induced cytidine deaminase (AID) and occurrence of double-strand DNA breaks (DSBs) in S regions of upstream and downstream C(H) region ...

Activation-induced deaminase (AID) deaminates deoxycytidine residues in immunoglobulin genes, triggering antibody diversification. Here, by use of two-hybrid and coimmunoprecipitation assays, we identify CTNNBL1 (also known as NAP) as an AID-specific interactor. Mutants of AID that interfere with CTNNBL1 interaction yield severely diminished hypermutation and class switching. Targeted inactivation of CTNNBL1 ...

Immunoglobulin (Ig) isotype switching is a recombination event that changes the constant domain of antibody genes and is catalyzed by activation-induced cytidine deaminase (AID). Upon recruitment to Ig genes, AID deaminates cytidines at switch (S) recombination sites, leading to the formation of DNA breaks. In addition to their role in ...

Activation-induced cytidine deaminase (AID) initiates all postrearrangement processes that diversify the immunoglobulin repertoire by specific deamination of cytidines at the immunoglobulin (Ig) locus. As uncontrolled expression of AID is potentially mutagenic, different types of regulation, particularly nucleocytoplasmic shuttling, restrict the likelihood of AID-deoxyribonucleic acid encounters. We studied additional mechanisms of ...

B lymphocytes perform somatic hypermutation and class-switch recombination (CSR) of the immunoglobulin locus to generate an antibody repertoire diverse in both affinity and function. These somatic diversification processes are catalyzed by activation-induced cytidine deaminase (AID), a potent DNA mutator whose expression and function are highly regulated. Here we show that ...

Activation-induced cytidine deaminase (AID) initiates somatic hypermutation and class switch recombination in B cells by deaminating C --> U on transcribed DNA. Here we analyze the role of phosphorylation and phosphorylation-null mutants on the biochemical behavior of AID, including enzyme specific activity, processivity, deamination spectra, deamination motif specificity, and transcription-dependent ...

Community dwelling people with dementia and their informal carers experience a lot of problems. In the course of the disease process people with dementia become more dependent on others and professional help is often necessary. Many informal carers and people with dementia experience unmet needs with regard to information on ...

This article investigates how the elderly with dementia and their professional caregivers use laughter as a device to deal with problems related to language production and comprehension. The data consist of two game-playing situations, used to engage the elderly people in memory work. The article shows how the elderly patients ...

The humoral immune response critically relies on the secondary diversification of antibodies. This diversification takes places through somatic remodelling of the antibody genes by two molecular mechanisms, Class Switch Recombination (CSR) and Somatic Hypermutation (SHM). The enzyme Activation Induced Cytidine Deaminase (AID) initiates both SHM and CSR by deaminating cytosine ...

Activation-induced DNA cytidine deaminase (AID) is required for somatic hypermutation (SHM) and efficient class switch recombination (CSR) of immunoglobulin (Ig) genes. We created AID-transgenic mice that express AID ubiquitously under the control of a beta-actin promoter. When crossed with AID-/- mice, the AID-transgenic,AID-/- mice carried out SHM and CSR, showing ...

This article details three examinations of communication impairment over 13 months in a man with AIDS dementia complex (ADC) and compares his performance on standardised language testing with that of two control participants. He had mild language impairments as measured on standardised tests but was severely impaired in pragmatic language ...

AIDS dementia complex is one of the specific infectious dementias, which is rarely seen in senescent (>75 years of age) subjects. Hashimoto encephalopathy has been described as the cause of several neurological and psychiatric syndromes including dementia. The proposed pathophysiological mechanism is an autoimmune reaction to shared, thyroid gland and ...

Activation-induced deaminase (AID) is thought to initiate somatic hypermutation (SHM), gene conversion (GCV), and class switch recombination (CSR) by the transcription-coupled deamination of cytosine residues in Ig genes. Phosphorylation of AID by protein kinase A (PKA) and subsequent interaction of AID with replication protein A (RPA) have been proposed to ...

In the HIV epidemic hope and loss are temporally structured according to pre, and post highly active antiretroviral therapies (HAART). AIDS dementia is a neurological condition on which HAART has had an important impact, yet this form of dementia has received little sociocultural attention. In this article, the author explores ...

Activation-induced cytidine deaminase (AID) is an inducible gene that plays a critical role in Ig class switch recombination and somatic hypermutation in B cells. We explored the mechanisms by which IL-4 induces AID expression in mouse B cells. IL-4 increased AID expression and over-expression of Stat6 further augmented IL-4-induced promoter ...

The molecular features that allow activation-induced cytidine deaminase (AID) to target Ig and certain non-Ig genes are not understood, although transcription has been implicated as one important parameter. We explored this issue by testing the mutability of a non-Ig transcription cassette in Ig and non-Ig loci of the chicken B ...

Calcineurin (CN) is the common receptor for two immunophilin-immunosuppressant complexes, Cyp-CsA and FKBP-FK506. Calcineurin is composed of a catalytic subunit (CNA) and a regulatory subunit (CNB). CNA contains the catalytic domain and three regulatory domains: a CNB-binding domain (BBH, 350-370), a calmodulin- binding domain (CBD, 389-413), and an autoinhibitory domain ...

Some of the major problems in radiation protection are closely connected to issues that have a long, independent tradition in moral philosophy. This contribution focuses on two of these issues. One is the relationship between the protection of individuals and optimisation on the collective level, and the other is the ...

Activation-induced cytidine deaminase (AID) is a B cell enzyme essential for Ig somatic hypermutation and class switch recombination. AID acts on ssDNA, and switch regions of Ig genes, a target of AID, form R-loops that contain ssDNA. Nevertheless, how AID action is specifically targeted to particular DNA sequences is not ...

Buprenorphine is dispensed primarily in community pharmacies in Victoria, with buprenorphine prescribing expanding nationally. The aim of this paper was to examine issues that affect the delivery of buprenorphine in the community setting. A cross-sectional survey was conducted of 282 pharmacies participating in the methadone and buprenorphine programme across Victoria. ...

Communication difficulties between caregivers and persons with dementia (PWDs) may increase stress, resulting in behavior problems. Kitwood's theory of dementia care suggests that successful collaborative communication increases well-being and quality of life in PWDs. This study aimed to determine if individualized communication prescriptions (ways interviewers might facilitate collaborative communication) are ...

Immunoglobulin gene diversification by somatic hypermutation (SHM), class switch recombination (CSR), and gene conversion is dependent upon activation-induced cytidine deaminase (AID). AID is a single-stranded DNA specific cytidine deaminase that is expressed primarily in activated mature B lymphocytes. AID appears to catalyze DNA cytidine deamination of immunoglobulin heavy (IgH) and ...

Activation-induced cytidine deaminase (AID; gene symbol AICDA) is the key molecule required to induce immunoglobulin (Ig) class switch recombination (CSR) and somatic hypermutation (SHM) of the variable regions of Ig genes. Its deficiency causes a form of hyper-IgM (HIGM) syndrome. The study of natural AID mutants associated with HIGM as ...

Immunoglobulin (Ig) class switching is initiated by deamination of C-->U within the immunoglobulin heavy chain locus, catalyzed by activation-induced deaminase (AID). In the absence of uracil-DNA glycosylase (UNG) and the homologue of bacterial MutS (MSH)-2 mismatch recognition protein, the resultant U:G lesions are not processed into switching events but are ...

Activation-induced deaminase (AID) is required for class switch recombination (CSR) and somatic hypermutation (SHM), which are responsible for secondary diversification of antibodies in germinal centers. AID initiates these processes by deamination of cytosines on the immunoglobulin (Ig) locus, a potentially mutagenic activity. AID expression is restricted to germinal-center B cells, ...

In mammals, activation-induced deaminase (AID) initiates somatic hypermutation (SHM) and class switch recombination (CSR) of Ig genes. SHM and CSR activities require separate regions within AID. A chromosome region maintenance 1 (CRM1)-dependent nuclear export signal (NES) at the AID C terminus is necessary for CSR, and has been suggested to ...

Older adults with dementia often cannot remember how to complete activities of daily living and require a caregiver to aid them through the steps involved. The use of a computerized guidance system could potentially reduce the reliance on a caregiver. This paper examines the design and preliminary evaluation of a ...