Preview

Neurology, Neuropsychiatry, Psychosomatics

Advanced search

Search


Order results by:     
 
Issue Title
 
Vol 14, No 4 (2022) A clinical case of mechanical recanalization of recurrent cerebral embolism in the hyperacute period of ischemic stroke with hemorrhagic transformation Abstract  similar documents
D. M. Murtazalieva, A. R. Zakaryaeva, M. V. Strutsenko, I. Y. Osipov, Z. S. Shogenov
"... of ischemic stroke, which developed 10 days after the first ischemic episode with hemorrhagic transformation ..."
 
Vol 11, No 2 (2019) Possible timing for anticoagulation therapy initiation in ischemic stroke patients with atrial fibrillation: further analysis of the hemorrhagic transformation index Abstract  PDF (Eng)  similar documents
M. N. Kalinin, D. R. Khasanova, M. M. Ibatullin
"... Objective: to assess the risk of hemorrhagic transformation (HT), by taking into account ..."
 
Vol 7, No 1 (2015) Possibility of predicting hemorrhagic transformation during reperfusion therapy for ischemic stroke in the patient population of the Sverdlovsk Region Abstract  similar documents
E. V. Prazdnichkova, A. M. Alasheev, A. A. Belkin, L. I. Volkova
"... Hemorrhagic transformation of an infarction focus is the most common and menacing complication ..."
 
Vol 5, No 4 (2013) Outpatient management after severe stroke with dementia Abstract  similar documents
Natalia Vyacheslavovna Pizova
"... , use of antithrombotic agents and statins (after prior ischemic stroke), treatment of cognitive ..."
 
Vol 16, No 1 (2024) Acute cerebrovascular accidents in patients with new coronavirus infection COVID-19 Abstract  similar documents
N. A. Shamalov, L. V. Klimov, M. A. Soldatov, T. V. Kiseleva, V. N. Shamalova, N. A. Marskaya, O. V. Lyang
"... . The main pathophysiological mechanism leading to the development of ischemic cerebrovascular accidents ..."
 
Vol 15, No 6 (2023) A rare cause of stroke at a young age: ischemic stroke by the mechanism of paradoxical embolism in a patient with hereditary hemorrhagic telangiectasia Abstract  similar documents
A. V. Belopasova, P. S. Shlapakova, L. A. Dobrynina, A. S. Kadykov
"... Clarification of the aetiology of ischemic stroke (IS) in young adults (aged between 18 and 45 ..."
 
Vol 8, No 1 (2016) Hemorrhagic stroke and oral anticoagulants: What is to be done? Abstract  similar documents
M. A. Domashenko
"... Hemorrhagic stroke (HS) is associated with high mortality and disability rates. Due ..."
 
Vol 6, No 3 (2014) Factors influencing the efficiency and safety of systemic thrombolysis in patients with ischemic stroke Abstract  similar documents
N. A. Shamalov, K. V. Anisimov, M. A. Kustova, A. P. Tolmachev
"... and safe therapy option for ischemic stroke (IS) in the first 4.5 hours after onset of the disease ..."
 
Vol 13, No 2 (2021) Cerebral venous thrombosis and its hemorrhagic complications Abstract  PDF (Eng)  similar documents
A. A. Kulesh
"... , treatment and  secondary prevention. The article emphasizes the hemorrhagic  presentations of CVT, which ..."
 
Vol 3, No 1 (2011) Experience in using intravenous thrombolysis in ischemic stroke in Tatarstan Abstract  similar documents
D. R. Khasanova, T. V. Demin
"... in 300 patients (188 men and 112 women) aged 21 to 79 years (mean age 59.8±13.7 years) who had ischemic ..."
 
Vol 14, No 6 (2022) Drug-induced non-traumatic intracranial hemorrhage associated with the use of anticoagulants and antiplatelet agents Abstract  similar documents
O. D. Ostroumova, A. I. Listratov, T. M. Ostroumova, A. I. Kochetkov, D. A. Sychev
"... a balance between ischemic and hemorrhagic complications. The most important aspect of prevention is strict ..."
 
Vol 10, No 3 (2018) Hemorrhagic manifestations of cerebral amyloid angiopathy: from pathogenesis to clinical significance Abstract  similar documents
A. A. Kulesh, V. E. Drobakha, V. V. Shestakov
"... is noted to be of clinical significance for the determination of therapeutic policy in hemorrhagic stroke ..."
 
Vol 11, No 2 (2019) Ethnic characteristics of location for cerebral aneurysms Abstract  similar documents
S. A. Chugunova
"... hemorrhagic stroke (AHS) who had been admitted consecutively to the regional vascular center (Yakutsk) were ..."
 
Vol 6, No 4 (2014) Current guidelines and prospects for using novel oral anticoagulants for nonvalvular atrial fibrillation Abstract  similar documents
A. V. Fonyakin
"... against hemorrhagic events. The low risks of intracranial hemorrhage typical of NOACs should be taken ..."
 
Vol 10, No 2 (2018) Effect of mexidol on lipid-phospholipid profile changes in elderly patients with stroke Abstract  similar documents
Yu. V. Abramenko
"... for elderly patients with acute ischemic and hemorrhagic stroke (IS and HS). Patients and methods. Sixty ..."
 
Vol 14, No 6 (2022) Issues of improving the management of patients with ischemic stroke on the background of atrial fibrillation Abstract  similar documents
A. A. Kulesh, D. A. Demin
"... and senile patients, after reperfusion therapy, with the development of hemorrhagic transformation ..."
 
Vol 15, No 3 (2023) Patient with non-cardioembolic ischemic stroke or high-risk transient ischemic attack. Part 2. Secondary prophylaxis Abstract  similar documents
A. A. Kulesh, S. N. Yanishevsky, D. A. Demin, L. I. Syromyatnikova, O. I. Vinogradov
"... Non-cardioembolic ischemic stroke (IS) of high and very high risk includes three groups ..."
 
Vol 16, No 2 (2024) The use of thromboaspiration and combined treatment in patients with ischemic stroke in real-life clinical practice Abstract  similar documents
T. V. Volchenkova, S. V. Kotov, E. V. Isakova, M. V. Sutormin, E. V. Patrin, B. B. Gegenava, M. N. Martynovich, I. G. Rudakova, L. V. Smetana, V. A. Borisova, S. V. Belkina
"... thromboaspiration only. The clinical and functional results, incidence of hemorrhagic transformation and mortality ..."
 
Vol 11, No 4 (2019) Acute coronary syndrome in a patient with transient ischemic attack: challenges of antithrombotic therapy (a clinical case) Abstract  similar documents
E. Yu. Kovalchuk, A. S. Povzun, V. A. Kostenko, A. V. Brega
"... according to the clinical picture of disease, an assessment of risk factors for ischemic and hemorrhagic ..."
 
Vol 11, No 3S (2019): Спецвыпуск: когнитивные нарушения, цереброваскулярные заболевания Atherothrombotic stroke in non-valvular atrial fibrillation Abstract  similar documents
I. S. Yavelov, E. Yu. Okshina
"... stroke and at relatively low risk for hemorrhagic complications. Cohorts of patients, to whom ..."
 
Vol 10, No 3 (2018) Effect of mexidol on the efficiency of intravenous thrombolytic therapy for ischemic stroke during the therapeutic window Abstract  similar documents
K. S. Knni, T. V. Dyomin, L. B. Adeeva
"... enrolled 123 patients with ischemic stroke (IS) who had undergone intravenous TLT in the vascular centers ..."
 
Vol 6, No 2S (2014): Special issue "Stroke" Specific features of free radical processes in comorbid patients with acute stroke and transient ischemic attack Abstract  similar documents
A.S. Orlova, E.V. Silina, S.A. Rumyantseva, V.A. Stupin, N.I. Menshova, V.A. Orlov, T.G. Sinelnikova, S.B. Bolevich
"... comorbidity. Ischemic stroke was diagnosed in 87 (61.7%) patients, hemorrhagic stroke and TIA were in 35 (24 ..."
 
Vol 17, No 3 (2025) Efficacy and safety of intravenous thrombolytic therapy in patients with ischemic stroke and mild neurological deficit Abstract  similar documents
M. R. Suleymanova, T. V. Danilova, D. R. Khasanova
"... Intravenous thrombolytic therapy (IV TLT) is the main method of reperfusion therapy for ischemic ..."
 
Vol 8, No 1 (2016) Opportunities in multimodal neuroimaging for optimizing thrombolytic therapy for ischemic stroke Abstract  similar documents
M. M. Odinak, I. A. Voznyuk, S. N. Yanishevsky, S. Yu. Golokhvastov, N. V. Tsygan, A. Yu. Polushin, R. V. Andreev, D. A. Mirnaya
"... The main purpose of examination of patients before thrombolytic therapy for ischemic stroke ..."
 
Vol 15, No 6 (2023) In-hospital mortality in patients with ischemic stroke and a large cerebral artery occlusion, who underwent mechanical thrombectomy Abstract  similar documents
D. M. Murtazalieva, A. R. Zakaryaeva, M. A. Zolotov
"... Occlusion of a large cerebral artery in ischemic stroke (IS) is associated with a high mortality ..."
 
Vol 17, No 3 (2025) Predicting clinical outcomes in patients with ischemic stroke following successful thrombectomy: clinical, neuroradiological, and periprocedural predictors Abstract  similar documents
K. V. Anisimov, N. Kh. Gorst, A. B. Berdalin, A. V. Kostin, K. N. Zhuravlev, D. V. Skrypnik, N. A. Shamalov
"... ). Material and methods. This retrospective analysis included 90 patients with ischemic stroke in the carotid ..."
 
Vol 14, No 3 (2022) Anticoagulant therapy as a part of secondary stroke prevention in patients with atrial fibrillation Abstract  similar documents
O. D. Ostroumova, T. M. Ostroumova
"... Atrial fibrillation (AF) is the main cause of cardioembolic ischemic stroke (IS), it occurs in 25 ..."
 
Vol 15, No 4 (2023) Cerebral ischemic events in patients with infective endocarditis: results of a single center retrospective study Abstract  similar documents
D. A. Demin, A. A. Kulesh, S. T. Enginoev, V. V. Demetskaya, E. V. Demina, M. V. Lezhikov, E. I. Shaposhnikova, D. R. Stompel
"... Cerebral ischemic events, including ischemic stroke (IS) and transient ischemic attack (TIA ..."
 
Vol 17, No 1 (2025) Thrombolytic therapy with Revelisa in ischemic stroke: results of the PRIMA international multicenter observational study Abstract  similar documents
N. A. Shamalov, D. R. Khasanova, S. V. Marchenko, M. A. Soldatov, T. P Alekseeva, O. V. Androfagina, L. N. Antipova, L. I. Anishchenko, E. M. Beketova, A. A. Bulanov, A. V. Gerasimova, N. Kh. Gorst, A. G. Gutsalyuk, T. V. Demin, A. V. Dyudin, U. A. Yelemanov, A. R. Zakaryaeva, N. N. Zinovyeva, S. S. Ziborova, D. N. Kazakov, N. V. Komissarova, I. V. Korobeynikov, K. V. Korovashkova, E. L. Kuzmin, A. A. Kulesh, R. R. Kuliev, A. S. Lebedev, A. L. Lukyanov, V. I. Maksimov, O. I. Mikhaylenko, I. V. Moldavskaya, D. M. Murtazalieva, Yu. S. Mukhamadieva, V. N. Nesterova, D. G. Novikov, S. V. Platunova, E. P. Prudius, R. A. Rayemgulov, V. A. Saskin, A. V. Sinelshchikova, E. A. Strautmanis, V. S. Suryakhin, E. V. Tavlueva, Yu. A. Telyatnik, N. V. Halo, M. S. Cherepyansky, N. A. Marskaya
"... Thrombolytic therapy (TLT) of ischemic stroke (IS) with alteplase within the first 4.5 hours from ..."
 
Vol 12, No 1 (2020) The first experience with thrombolytic therapy for cerebral infarction in the Russian Federation after the use of idarucizumab Abstract  similar documents
E. V. Pudov, N. N. Sukhacheva, I. S. Petelina
"... tomography revealed an ischemic focus in the left cerebellar hemisphere with hemorrhagic transformation ..."
 
Vol 13, No 5 (2021) Difficult issues in the management of patients with atrial fibrillation: a neurologist's point of view Abstract  PDF (Eng)  similar documents
A. A. Kulesh
"... prevention of cardioembolic stroke. The timing of prescribing drugs for ischemic stroke and transient ..."
 
Vol 5, No 1S (2013): Special issue "Epilepsy" Risk of epileptic seizures onset during acute period of stroke Abstract  similar documents
I. G. Rudakova, E. Yu. Djachkova, I. G. Kolchu
"... of research were showed: risk of early seizures increase by patients with hemorrhagic stroke, with heart ..."
 
Vol 11, No 3S (2019): Спецвыпуск: когнитивные нарушения, цереброваскулярные заболевания Cerebral small vessel disease: classification, clinical manifestations, diagnosis, and features of treatment Abstract  similar documents
A. A. Kulesh, V. E. Drobakha, V. V. Shestakov
"... ) that is an important cause of ischemic and hemorrhagic stroke, associated with the development of cognitive impairment ..."
 
Vol 7, No 4 (2015) The unusual cause of stroke: Cerebral dural arteriovenous fistula Abstract  similar documents
M. N. Kalinin, D. R. Khasanova, M. M. Ibatullin, A. T. Kurado, L. M. Yausheva, I. Sh. Rakhimov
"... male patient with the lobar localization of the focus, a concurrence of ischemic stroke and hemorrhagic ..."
 
Vol 1, No 1 (2009) THE ACUTE PERIOD OF ISCHEMIC STROKE: DIAGNOSIS AND TREATMENT Abstract  similar documents
V. A. Parfenov
"... Updates of the diagnosis and treatment of ischemic stroke are given. The diagnosis of ischemic ..."
 
Vol 1, No 1 (2009) CARDIOGENIC INSULTS Abstract  similar documents
A. V. Fonyakin, L. A. Geraskina
"... . Cardiogenic insults are demonstrated to account for as high as 40% of all the causes of ischemic insult ..."
 
Vol 4, No 1 (2012) Weather risk factors for stroke in the Central Region of Russia Abstract  similar documents
Natalia Vyacheslavovna Pizova, S D Prozorovskaya, A V Pizov
"... .19years. Ischemic and hemorrhagic strokes were identified in 61.1 and 19.0% of cases, respectively ..."
 
Vol 13, No 5 (2021) Anticoagulant therapy for stroke prevention in patients with severe COVID-19 Abstract  similar documents
A. T. Azimov, G. S. Rakhimbaeva, F. Z. Azimov
"... and hemorrhagic strokes and transient ischemic attacks during a 6-week follow-up period. The article also presents ..."
 
Vol 4, No 1 (2012) New possibilities in the prevention of stroke in atrial fibrillation Abstract  similar documents
Vladimir Anatolyevich Parfenov, S V Verbitskaya
"... , life-threatening hemorrhages, and hemorrhagic stroke as compared to that of warfarin. The prospects ..."
 
Vol 12, No 2 (2020) Current approaches to diagnosing in intracerebral hemorrhage Abstract  PDF (Eng)  similar documents
A. A. Kulesh
"... the ischemic and hemorrhagic markers of cerebral small vessel diseases. This examination is necessary not only ..."
 
Vol 8, No 1 (2016) SNAP-25 gene polymorphism and cognitive resource in patients with stroke sequels Abstract  similar documents
V. B. Vilyanov, G. N. Kobozev
"... of patients with ischemic stroke (IS) and hemorrhagic stroke (HS). Patients and methods. A total of 188 ..."
 
Vol 1, No 1 (2009) TENOTEN IN COMPLEX THERAPY FOR CEREBROVASCULAR INSUFFICIENCY IN ELDERLY PATIENTS Abstract  similar documents
L. D. Serova
"... of cerebrovascular atherosclerosis, sequels of prior acute ischemic attacks, and posttraumatic encephalopathy ..."
 
Vol 15, No 2 (2023) Clinical course and diagnosis of cerebral vein and sinus thrombosis associated with COVID-19 in young and middle-aged patients Abstract  similar documents
E. G. Klocheva, V. V. Goldobin, F. Z. Olimova
"... (in two cases, hemorrhagic stroke was noted, in one case, multifocal ischemic stroke), in other cases ..."
 
Vol 11, No 4 (2019) Mathematical modeling of ischemic stroke Abstract  similar documents
V. I. Ershov, A. N. Chirkov, A. P. Gonchar-Zaykin, S. N. Lyashchenko, T. Yu. Lozinskaya, N. V. Gumalatova, G. E. Kuznetsov, L. R. Tenchurina
"... in the acutest period of severe ischemic stroke (IS). Patients and methods. A total of 150 patients with severe ..."
 
Vol 3, No 3 (2011) Reperfusion therapy for ischemic stroke  similar documents
N. A. Shamalov, G. R. Ramazanov, K. V. Anisimov, V. I. Skvortsova
 
Vol 2, No 4 (2010) Smoking and ischemic stroke Abstract  similar documents
D. V. Neverovskiy
"... Smoking shows a 2-4-fold increased risk of ischemic stroke. The duration of smoking and the larger ..."
 
Vol 5, No 3 (2013) Thrombolytic therapy for ischemic stroke Abstract  similar documents
Natalia Vyacheslavovna Pizova
"... ) is a proven effective treatment in a certain category of patients with ischemic stroke during the first 4 ..."
 
Vol 17, No 3 (2025) Ischemic stroke in women Abstract  similar documents
N. V. Pizova, A. V. Pizov
"... Ischemic stroke (IS) affects all population groups, but women bear a greater burden of the disease ..."
 
Vol 13, No 6 (2021) Impact of the physical rehabilitation onset time in early recovery period of ischemic stroke (second stage of medical rehabilitation) on the level of daily activity and independence Abstract  similar documents
S. V. Kotov, L. H. Kodzokova, E. V. Isakova, A. S. Kotov
"... Ischemic stroke (IS) is the leading cause of neurological inpatient care, readmission, and long ..."
 
Vol 7, No 3 (2015) Specific features of reperfusion therapy for vertebrobasilar ischemic stroke Abstract  similar documents
K. V. Anisimov, A. P. Tolmachev, Nikolai Anatolyevich Shamalov
"... Ischemic stroke in the vertebrobasilar system (VBS) is characterized by the high rates of death ..."
 
Vol 5, No 4 (2013) Platelet antiaggregants in the treatment and prevention of ischemic stroke Abstract  similar documents
Andrei Viktorovich Fonyakin
"... and secondary prevention of ischemic stroke. Relying on the data of evidence-based medicine, the author provides ..."
 
Vol 2, No 1 (2010) EXPERIENCE IN USING INTRAVENOUS THROMBOLYSIS IN ISCHEMIC STROKE Abstract  similar documents
T. V. Demin, M. V. Saikhunov, D. R. Khasanova
"... . It is stressed that the success of this treatment for ischemic stroke in the therapeutic window period ..."
 
Vol 2, No 1 (2010) SOME ASPECTS OF THE DIAGNOSIS AND TREATMENT OF ISCHEMIC STROKE Abstract  similar documents
V. A. Parfenov
"... To improve the diagnosis and treatment of ischemic stroke (IS) is an urgent priority of modern ..."
 
Vol 7, No 1S (2015): Special issue "Epilepsy" Clinical features of poststroke epileptic seizures Abstract  similar documents
T. V. Danilova
"... with ischemic stroke were examined. A study group included 265 patients (176 men and 89 women) aged 31–89 years ..."
 
Vol 2, No 2 (2010) Acetylsalicylic acid in the prevention and treatment of ischemic stroke Abstract  similar documents
A. V. Fonyakin
"... ischemic stroke. A study of the effect of this agent in the primary prevention of stroke has demonstrated ..."
 
Vol 6, No 1 (2014) The use of neurocytoprotectors to improve rehabilitation of patients after cerebrovascular accident Abstract  similar documents
V.V. Kovalchuk
"... and emotional states of patients with ischemic stroke. Patients and methods: The study involved 250 patients ..."
 
Vol 5, No 3 (2013) Analysis of factors influencing the early efficiency of systemic thrombolytic therapy for ischemic stroke Abstract  similar documents
Elena Vladimirovna Prazdnichkova, A M Alasheev, O A Shalagina, L I Volkova
"... and the time of initiation of TLT after ischemic stroke onset on its early efficiency. Patients and methods ..."
 
Vol 3, No 4 (2011) Actual directions in the primary prevention of ischemic stroke Abstract  similar documents
A. V. Fonyakin, L. A. Geraskina
"... Basic directions in the primary prevention of ischemic stroke are presented. Population and high ..."
 
Vol 4, No 4 (2012) Subtypes of ischemic cerebral circulation disorders at young age: diagnosis and treatment Abstract  similar documents
Natalia Vyacheslavovna Pizova
"... with the TOAST classification, the author presents the major pathogenetic subtypes of ischemic stroke ..."
 
Vol 13, No 4 (2021) Neuroprotective therapy in acute ischemic stroke Abstract  similar documents
A. A. Kulesh
"... The review discusses the role of neuroprotective therapy in the acute period of ischemic stroke ..."
 
Vol 10, No 2 (2018) Diagnostic criteria for transient ischemic attack Abstract  similar documents
E. R. Lebedeva, N. M. Gurary, J. Olesen
"... The diagnosis of transient ischemic attack (TIA) is fraught with problems; particularly ..."
 
Vol 9, No 2 (2017) Antiplatelet therapy strategies for ischemic stroke Abstract  similar documents
M. Yu. Maksimova, A. V. Fonyakin, L. A. Geraskina
"... The paper considers the key areas of antithrombotic platelet therapy for ischemic stroke ..."
 
Vol 3, No 4 (2011) New possibilities of neuroprotection in ischemic stroke Abstract  similar documents
D. V. Sergeyev, M. A. Piradov, M. Yu. Maksimova, M. A. Domashenko, A. N. Sergeyeva, F. R. Okhtova
"... stroke. The paper reviews currently available drugs used for neuroprotection in ischemic strokes ..."
 
Vol 4, No 4 (2012) Citicoline for ischemic stroke: ICTUS trial Abstract  similar documents
Vladimir Anatolyevich Parfenov
"... of ischemic stroke (IS) and in randomized multicenter placebo-controlled trials. It analyzes the results ..."
 
Vol 4, No 3 (2012) Transient ischemic attack is a multidisciplinary problem Abstract  similar documents
Valentina Vladimirovna Gudkova, T V Shanina, E A Petrova, L V Stakhovskaya
"... The paper discusses the issues associated with the definition of the concept «transient ischemic ..."
 
Vol 16, No 6 (2024) Stroke and transient ischemic attack mimickers Abstract  similar documents
A. A. Kulesh, D. A. Demin
"... . This article presents approaches to the differentiation of stroke, transient ischemic attack ..."
 
Vol 13, No 4 (2021) Computed tomography-based mathematical modeling of ischemic stroke outcomes based on the focus characteristics Abstract  similar documents
V. I. Ershov, A. N. Chirkov, N. V. Gumalatova, T. Yu. Lozinskaya, A. M. Nazarov, E. D. Lutsai, V. V. Burdakov, V. V. Silkin
"... Objective: to identify the prognostic aspects of the ischemic stroke (IS) focus characteristics ..."
 
Vol 2, No 3 (2010) Clinical experience with ceraxon used in ischemic stroke Abstract  similar documents
V. A. Parfenov, T. G. Fateyeva, O. V. Kosivtsova
"... Citicoline (Ceraxon) is a neuroprotective agent used in acute ischemic stroke (IS) and chronic ..."
 
Vol 14, No 3 (2022) Possibilities of antiplatelet therapy in non-cardioembolic ischemic stroke Abstract  similar documents
M. Yu. Maksimova, A. S. Airapetova
"... Most patients survive their first non-cardioembolic ischemic stroke (IS), but a significant ..."
 
Vol 14, No 6 (2022) Features of pathogenesis and risk factors of in-hospital ischemic stroke Abstract  similar documents
S. V. Kolomentsev, N. V. Tsygan, I. A. Voznyuk, S. N. Yanishevskiy, E. I. Shermatyuk, O. M. Ilyina, I. V. Litvinenko
"... In-hospital ischemic stroke (IHIS) is one of the most critical competing diseases that can develop ..."
 
1 - 70 of 223 Items 1 2 3 4 > >> 

Search tips:

  • Search terms are case-insensitive
  • Common words are ignored
  • By default articles containing any term in the query are returned (i.e., OR is implied)
  • Make sure that a word exists in an article by prefixing it with +; e.g., +journal +access scholarly academic
  • Combine multiple words with AND to find articles containing all terms; e.g., education AND research
  • Exclude a word by prefixing it with - or NOT; e.g., online -politics or online NOT politics
  • Search for an exact phrase by putting it in quotes; e.g., "open access publishing". Hint: Quoting Chinese or Japanese words will help you to find exact word matches in mixed-language fields, e.g. "中国".
  • Use parentheses to create more complex queries; e.g., archive ((journal AND conference) NOT theses)