Scientific Commons: L. De Haan

Objective: The lack of fit of 25 previously published five-factor models for the PANSS items, can be due to the statistics used. The purpose of this study was to use a 'new' statistical method to...

The five-factor model of the Positive and Negative Syndrome Scale - I: Confirmatory factor analysis fails to confirm 25 published five-factor solutions (2006)

Gaag, M. Van Der, Cuijpers, A., Hoffman, T., Remijsen, M., Hijman, R., Haan, L. De, ...

Objective: The aim of this study was to test the goodness-of-fit of all previously published five-factor models of the Positive and Negative Syndrome Scale (PANSS). Methods: We used confirmatory...

Schizophrenia-associated neural growth factors in peripheral blood. A review (2006)

Haan, L. De, Fekkes, D.

In this paper we review the findings on neural growth factors in the peripheral blood of schizophrenia patients. The studies we review provide evidence for the fact that in schizophrenia the levels...

Occupancy of dopamine D-2 receptors by antipsychotic drugs is related to nicotine addiction in young patients with schizophrenia (2006)

Haan, L. De, Booij, J., Lavalaye, J., Amelsvoort, T. Van, Linszen, D.

Rationale: Occupancy of dopamine D-2 receptors by antipsychotic drugs depends on the individual availability of D-2 receptors and on the dose and type of antipsychotic medication. It has been...

Blijvende neuropsychologische stoornissen en structurele en functionele hersenafwijkingen na langdurig cannabisgebruik (2006)

Weeda, M.R., Peters, B.D., Haan, L. De, Linszen, D.H.

The catechol-O-methyltransferase gene and schizofphrenia [ch IV] (2005)

Zinkstok, J., Amelsvoort, T. Van, Haan, L. De, Baas, F., Linszen, D.H.

Adolescence, schizophrenia and drug abuse: a window of vulnerability (2005)

Haan, L. De, Beveren, N. Van, Brink, W. Van Den, Linszen, D.H.

Modelling the treated course of schizophrenia: development of a discrete event simulation model (2005)

Heeg, B.M.S., Buskens, E., Knapp, M., Aalst, G. Van, Dries, P.J.T., Haan, L. De

Obsessive-compulsive symptoms and positive, negative, and depressive symptoms in patients with recent-onset schizophrenic disorders (2005)

Haan, L. De, Hoogenboom, B., Beuk, N., Amelsvoort, T. Van, Linszen, D.H.

Het optimale niveau van dopaminerge transmissie (2005)

Haan, L. De

Olanzapine and haloperidol for residual symptoms [letter] (2005)

Haan, L. De, Beveren, N. Van

Subjective experiences during dopamine depletion [letter] (2005)

Haan, L. De, Booij, J., Lavalaye, J., Amelsvoort, T. Van, Linszen, D.H.

Comfort, self-confidence, safety, and dopamine D2 receptor occupancy by antipsychotics [letter] (2005)

Haan, L. De, Lavalaye, J., Booij, J., Linszen, D.H.

Adolescence, schizophrenia and drug abuse: a window of vulnerability (2005)

Haan, L. De, Beveren, N. Van, Brink, W. Van Den, Linszen, D.H.

Subjective experience and dopamine D2 receptor occupancy in patients treated with antipsychotics: clinical implications (2004)

Haan, L. De, Lavalaye, J., Bruggen, M. Van, Nimwegen, L. Van, Booij, J., Amelsvoort, T. Van, ...

Weight loss after switching from conventional olanzapine tablets to orally disintegrating olanzapine tablets [letter] (2004)

Haan, L. De, Amelsvoort, T. Van, Rosien, K., Linszen, D.H.

Subjective experience and dopamine D2 receptor occupancy in patients treated with antipsychotics: clinical implications (2004)

Haan, L. De, Lavalaye, J., Bruggen, M. Van, Nimwegen, L. Van, Booij, J., Amelsvoort, T. Van, ...

Overview of neuropathological theories of schizophrenia: from degeneration to progressive developmental disorder (2004)

Haan, L. De, Bakker, J.M.

Opinions of mothers on the first psychotic episode and the start of treatment of their child (2004)

Haan, L. De, Welborn, K., Krikke, M., Linszen, D.H.

Obsessive-compulsive disorder and treatment with clozapine in 200 patients with recent-onset schizophrenia or related disorders [letter] (2004)

Haan, L. De, Oekeneva, A., Amelsvoort, T. Van, Linszen, D.H.

Elevated homocysteine levels in schizophrenia [letter] (2004)

Haan, L. De, Amelsvoort, T. Van, Linszen, D.H.

Olanzapine vs haloperidol for treatment of schizophrenia [reply] (2004)

Haan, L. De, Beveren, N. Van

Pericardial and bilateral pleural effusion associated with clozapine treatment [letter] (2004)

Boot, E., Haan, L. De, Güzelcan, Y., Scholte, W.F., Assies, J.

Risperidone-induced leucopenia and neutropenia: a case report (2004)

Sluys, M., Güzelcan, Y., Casteelen, G., Haan, L. De

Risk factors associated with Campylobacter jejuni infections in Curacao, Netherlands Antilles (2003)

Endtz, H.P., Haan, L. De, Koningsveld, R. Van, Halabi, Y., Braak, N. Van Den, Kesztyus, B.I., ...

A steady increase in the incidence of Guillain-Barre syndrome (GBS) with a seasonal preponderance, almost exclusively related to Campylobacter jejuni, and a rise in the incidence of...

Suicide risk in placebo vs active treatment in placebo-controlled trials for schizophrenia (2003)

Storosum, J.G., Zwieten, B.J. Van, Wohlfarth, T., Haan, L. De, Khan, A., Brink, W. Van Den

Duration of untreated psychosis and outcome of schizophrenia: Delay in intensive psychosocial treatment versus delay in treatment with anti psychotic medication (2003)

Haan, L. De, Linszen, D.H., Lenior, M.E., Win, E.D. De, Gorsira, R.

Subjective experience and D-2 receptor occupancy in patients with recent-onset schizophrenia treated with low-dose olanzapine or haloperidol: A randomized, double-blind study (2003)

Haan, L. De, Bruggen, M. Van, Lavalaye, J., Booij, J., Linszen, D.H.

Suicide risk in placebo vs active treatment in placebo-controlled trials for schizophrenia (2003)

Storosum, J.G., Zwieten, B.J. Van, Wohlfarth, T., Haan, L. De, Khan, A., Brink, W. Van Den

Subjective experience and D-2 receptor occupancy in patients with recent-onset schizophrenia treated with low-dose olanzapine or haloperidol: A randomized, double-blind study (2003)

Haan, L. De, Bruggen, M. Van, Lavalaye, J., Booij, J., Linszen, D.H.

Informed consent from behaviourally disturbed patients [letter] (2003)

Storosum, J.G., Zwieten, B.J. Van, Haan, L. De

School performance in secundary education shows no decline before the onset of a first episode of psychosis in schizophrenia (2003)

Gaag, M. Van Der, Wolthaus, J., Haan, L. De, Wykes, T.

Suicide risk in placebo vs active treatment in placebo-controlled trials for schizophrenia (2003)

Storosum, J.G., Zwieten, B.J. Van, Wohlfarth, T., Haan, L. De, Khan, A., Brink, W. Van Den

Subjective experience and D-2 receptor occupancy in patients with recent-onset schizophrenia treated with low-dose olanzapine or haloperidol: A randomized, double-blind study (2003)

Haan, L. De, Bruggen, M. Van, Lavalaye, J., Booij, J., Linszen, D.H.

Ordering the preference hierarchies for internal finance, bank laons, bond and share issue: evidence from Dutch firms (2003)

Hinloopen, J., Haan, L. De

Patients' perspectives. Subjective experiences and attitudes of patients with recent onset schizophrenia (2002)

Haan, L. De

Attitudes of patients toward the first psychotic episode and the start of treatment (2002)

Haan, L. De, Peters, B.D., Linszen, D.H.

Risperidone may induce mania (2002)

Guzelcan, Y., Haan, L. De, Scholte, W.F.

Olanzapine-induced obsessive-compulsive symptoms in a patient with bipolar II disorder (2002)

Jonkers, F., Haan, L. De

Psychometric properties of the Subjective Well-Being Under Neuroleptics scale and the Subjective Deficit Syndrome Scale (2002)

Haan, L. De, Weisfelt, M., Linszen, D.H.

Obsessive-compulsive symptoms during treatment with olanzapine and risperidone: a prospective study of 113 patients with recent-onset schizophrenia or related disorders (2002)

Haan, L. De, Beuk, N.J.M., Hoogenboom, B., Linszen, D.H.

Comparable dopamine 2 receptor occupancy [letter] (2002)

Haan, L. De, Amelsfoort, T.A. Van

Priorities and satisfaction on the help needed and provided in a first episode of psychosis. A survey in five European Family Associations (2002)

Haan, L. De, Kramer, L., Raay, B. Van, Weir, M., Gardner, J., Akselson, S., ...

Olanzapine-induced obsessive-compulsive symptoms in a patient with bipolar II disorder (2002)

Jonkers, F., Haan, L. De

Risperidone may induce mania (2002)

Güzelcan, Y., Haan, L. De, Scholte, W.F.

Olanzapine-induced obsessive-compulsive symptoms in a patient with bipolar II disorder (2002)

Jonkers, F., Haan, L. De

Re-aligning government, civil society and the market : new challenges in urban and regional development : essays in honour of G.A. de Bruijne (2001)

Baud, I.S.A., Dietz, A.J., Post, J., Haan , L. De

Het beloop van schizofrenie gedurende vijf jaar na een eerste opname, in de westerse wereld. Een meta-analyse (2001)

Haan, L. De, Timmer, T., Linszen, D.H., Lenior, M.E.

Rehabilitatie van klassieke antipsychotica: een overzicht van meta-analyses (2001)

Haan, L. De, Bruggen, J.M. Van, Lavalaye, J., Scholte, W.F., Storosum, J.G., ...

Preferences for treatment during a first psychotic episode (2001)

Haan, L. De, Raaij, B. Van, Jager, M.J., Houweling, P., Stockmann, M., ...

Dopamine D-2 receptor blockade in schizophrenia - Dr. de Haan and colleagues reply [letter] (2001)

Haan, L. De, Lavalaye, J., Linszen, D.H., Booij, J.

Sociaal functioneren en het beloop van recent ontstane schizofrenie. Een vervolgstudie over de eerste vijf jaar (2001)

Lenior, M.E., Linszen, D.H., Haan, L. De, Schene, A.H.

Social functioning and the course of early-onset schizophrenia - Five-year follow-up of a psychosocial intervention (2001)

Lenior, M.E., Linszen, D.H., Haan, L. De, Schene, A.H.

Using a Bootstrap Method to Choose the Sample Fraction in Tail Index Estimation (2001)

J. Danielsson, L. De Haan, L. Peng

Tail index estimation depends for its accuracy on a precise choice of the sample fraction, i.e. the number of extreme order statistics on which the estimation is based. A complete solution to the...

Subjective experience and striatal dopamine D2 receptor occupancy in patients with schizophrenia stabilized by olanzapine or risperidone [brief report] (2000)

Haan, L. De, Lavalaye, J., Linszen, D.H., Booij, J.

Effectiviteit van individuele psychotherapie bij schizofrenie. Een overzicht van recent onderzoek (2000)

Haan, L. De, Bakker, J.M.

Massive increase in serum creatine kinase during olanzipine and quetiapine treatment, not during treatment with clozapine [letter] (2000)

Boot, E., Haan, L. De

Duration of untreated psychosis and the long-term course of schizophrenia (2000)

Haan, L. De, Gaag, M. Van Der, Wolthaus, J.E.D.

Subjective experience and striatal dopamine D2 receptor occupancy in patients with schizophrenia stabilized by olanzapine or risperidone [brief report] (2000)

Haan, L. De, Lavalaye, J., Linszen, D.H., Booij, J.

Dwangsymptomen bij schizofrenie: aanwijzingen voor een aparte groep (2000)

Beuk, N.J.M., Haan, L. De

Subjective experience and striatal dopamine D2 receptor occupancy in patients with schizophrenia stabilized by olanzapine or risperidone [brief report] (2000)

Haan, L. De, Lavalaye, J., Linszen, D.H., Booij, J.

Der Einfluss von Fruhintervention auf den Verlauf der Schizophrenie (1999)

Linszen, D.H., Scholte, W.F., Haan, L. De

Verbetering van therapietrouw bij de behandeling van schizofreniepatienten met antipsychotica (1999)

Haan, L. De, Bremmer, M.A.

Clozapine and obsessions in patients with recent-onset schizophrenia and other psychotic disorders (1999)

Haan, L. De, Linszen, D.H., Gorsira, R.

Psychosebehandeling met een lage dosering D?-antagonist (1999)

Haan, L. De, Maksmovic, I.

'Duur onbehandelde psychose' en het beloop van schizofrenie (1999)

Haan, L. De, Bottelier, M.A.

Betekenis Europese kapitaalmarkt voor financiering bedrijven (1999)

Haan, L. De, Prast, H.M.

A reassessment of findings from an interdisciplinary research on land management and pastoralism (1998)

Haan, L. De, Blaikie, P.

Reading maps in the dark: route planning for development geography in a post-ist world. (1998)

Haan, L. De, Blaikie, P.

Voor het eerst een psychose. Informatie voor familieleden, partners en vrienden (1998)

Haan, L. De, Stavenuiter, B., Stockmann, M., Vlaminck, P.

Antipsychotica (1998)

Haan, L. De

Early detection and intervention in schizophrenia (1998)

Linszen, D.H., Lenior, M.E., Scholte, W.F., Haan, L. De, Goldstein, M.

Early intervention, untreated psychosis and the course of early schizophrenia (1998)

Linszen, D.H., Lenior, M.E., Haan, L. De, Gersons, B.P.R.

Early invention, social functioning and psychotic relapse of patients with recent-onset schizophrenic disorders (1998)

Haan, L. De, Linszen, D.H., Gorsira, R.

Subjectieve ervaringen van patienten met schizofrenie gerelateerd aan behandeling met antipsychotica (1998)

Brink, C. Ten, Haan, L. De, Knegtering, H.

Estimating the spectral measure of an extreme value distribution (1997)

Einmahl, J.H.J, Haan, L. De, Sinha, A.

Vroegtijdige intensieve interventie, sociaal functioneren, psychoserecidief en su?cide bij patienten met recent ontstane schizofrenie en verwante stoornissen (1997)

Haan, L. De, Linszen, D.H., Gorsira, R.

Investeringen en Kredietbeperking (1997)

Sterken, E., Haan, L. De, Garretsen, J.H., Ees, H. Van

A Bootstrap-based Method to Achieve Optimality in Estimating the Extreme-value Index (1997)

G. Draisma, L. De Haan, L. Peng, T. T. Pereira

Estimators of the extreme-value index are based on a set of upper order statistics. We present an adaptive method to choose the number of order statistics involved in an optimal way, balancing...

Measuring asymptotic convexity (1995)

Balkema, A.A., Geluk, J.L., Haan, L. De

Second Order Regular Variation, Convolution And The Central Limit Theorem (1995)

J. Geluk, L. De Haan, S. Resnick, C. Starica, Gamma F

. Second order regular variation is a refinement of the concept of regular variation which is useful for studying rates of convergence in extreme value theory and asymptotic normality of tail...

Ecologische degradatie en bestaansstrategieen in Noord-Benin. (1994)

Haan, L. De, Berkhout, J.A.A.

Buffer stock money and pecking order financing: Results from an interview study among Dutch firms (1994)

Haan, L. De, Koedijk, C.G., Vrijer, E.J. De

Safety first, extreme value theory and long-run asset risks (1994)

Koedijk, C.G., Haan, L. De, Jansen, D., Vries, C. De

Estimating a multidimensional extreme-value distribution (1993)

Einmahl, J.H.J., Haan, L. De, Xin, H.

De stijging van het liquiditeitsbezit in de jaren tachtig: Een enquête onder Nederlandse bedrijven en financiële instellingen (1992)

Haan, L. De, Koedijk, C.G.

Gebruik van kort bankkrediet nader bekeken (1992)

Haan, L. De, Koedijk, C.G.

Inflationary Risks for the Euro Area: Simulations with EUROMON

M. Demertzis, L. De Haan

We perform four simulations with the multi-countrymodel EUROMON illustrating both upwards and downward risks to future inflation in the Euro area. We examine how different sources of inflation can...

Weak & Strong Financial Fragility

J.L. Geluk, L. De Haan

The stability of the financial system at higher loss levels is either characterized by asymptotic dependence or asymptotic independence. If asymptotically independent, the dependency, when present,...

The Credit Channel in the Netherlands: Evidence from Bank Balance Sheets

L. De Haan

This study contributes to the empirical evidence on the lending channel in the Netherlands using individual bank data. The main conclusion is that a lending channel is operative in the Netherlands....

External Shocks and Macroeconomic Policy: Simulations with EUROMON

M. Demertzis, L. De Haan

We carry out a number of policy simulations with DNB's multicountry model, EUROMON. With these simulations we aim to analyse the effectiveness of monetary and fiscal expansion in light of the current...

MAKMODEL: a macroeconometric model for the Republic of Macedonia

L. De Haan, A. Naumovska

This report describes the macro-econometric model for the Republic of Macedonia MAKMODEL. It documents the main features of this model that was built by research teams of the Macedonian and Dutch...

Capital Structure, Corporate Goverance, and Monetary Policy: Firm-Level Evidence for the Euro Area

L. De Haan, E. Sterken

This paper contributes to the empirical evidence on the credit channel of monetary policy in the euro area by providing firm level evidence on the relation between the impact of monetary policy on...

Debt or equity? An empirical study of security issues by Dutch companies

L. De Haan, J. Hinloopen

We consider empirically the incremental financing decisions for a sample of 153 AEX-quoted companies during the years 1984 through 1997. First, we estimate a binomial logit model for the choice...

Corporate Governance, Relationship Lending and Monetary Policy: Firm-Level Evidence for the Euro Area

L. De Haan, E. Sterken

We show by means of a bank relationship model that after monetary policy tightening, public firms (having easier access to public capital markets) are more likely to decrease their demand for bank...

Revision of the DNB-business cycle indicator.

L. De Haan, F.W. Vijselaar

Since 1989, DNB publishes every month a column on the Netherlands´ economy in the Dutch economist weekly, ESB. This column discusses the latest trends depicted by the DNB business cycle indicator....

Using a bootstrap method to choose the sample fraction in tail index estimation

J. Danielsson, L. De Haan, L. Peng

Tail index estimation depends for its accuracy on a precise choice of the sample fraction, i.e. the number of extreme order statistics on which the estimation is based. A complete solution to the...

A bootstrap-based method to achieve optimality on estimating the extreme-value index

G. Draisma, L. De Haan, L. Peng

Estimators of the extreme-value index are based on a set of upper order statistics. We present an adaptive method to choose the number of order statistics involved in an optimal way, balancing...

Using a Bootstrap Method to choose the Sample Fraction in Tail Index Estimation

J. Danielsson, L. De Haan, L. Peng

We use a subsample bootstrap method to get a consistent estimate of the asymptotically optimal choice of the sample fraction, in the sense of minimal mean squared error, which is needed for tail...

Estimating the Index of a Stable Distribution

L. De Haan, T. Themido Pereira

Weighted approximations of tail copula processes with application to testing the multivariate extreme value condition

Einmahl, J.H.J., Haan, L. De, Li, D.

Consider n i.i.d. random vectors on R2, with unknown, common distribution function F. Under a sharpening of the extreme value condition on F, we derive a weighted approximation of the corresponding...

The significance of the European capital market for the financing of the corporate sector

L. De Haan, H.M. Prast

The continental European financial system distinghuishes itself from its American counterpart by the dominance of banks in the financing of nonfinancial companies. Only a fraction of the external...

L. De Haan

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