The keel colour polymorphism in Lotus corniculatus L.: Differences in internal flower temperatures
The ketogenic diet revisited
The ketogenic diet: a practical guide for caregivers
The key is in the pocket
The key role of nutrition in controlling human population dynamics
The key to signalling
The key to succesful organic synthesis is.
The key to success is finishing well
The key to third party reimbursement? Establish a dialogue with physicians on their level
The keystone role of bison in North American tallgrass prairie
The keystone species concept: variation in interaction strength in a rocky intertidal habitat
The keystone-species concept in ecology and conservation
The kidney and hypertension
The kidneys stimulate vasopressin release during hemorrhage in rats with chronic NTS lesions
The kidneys that nobody wanted: Support for the utilization of expanded criteria donors
The killing fields
The killing lakes
The kinase TAK1 can activate the NIK-IkB as well as the MAP kinase cascade in the IL-1 signalling pathway
The kinase homology domain of retinal guanylyl cyclases 1 and 2 specifies the affinity and cooperativity of interaction with guanylyl cyclase activating protein-2
The kinesin-related protein Eg5 associates with both interphase and spindle microtubules during Xenopus early development
The kinetic behavior of chicken liver sulfite oxidase
The kinetic mechanism of Ran-nucleotide exchange catalyzed by RCC1
The kinetic mechanism of the hairpin ribozyme in vivo: influence of RNA helix stability on intracellular cleavage kinetics
The kinetic significance of V5+ in n-butane oxidation catalyzed by vanadium phosphates
The kinetics of Montenegro skin tests in dogs inoculated an an antileishmaniasis vaccine: A histopathologic study
The kinetics of aflatoxin B-1 oxidation by human cDNA-expressed and human liver microsomal cytochromes P450 1A2 and 3A4
The kinetics of association and phosphorylation of IkB isoforms by IkB kinase 2 correlate with their cellular regulation in human endothelial cells
The kinetics of colony formation by CFU-GM in vitro
The kinetics of oligonucleotide replacements
The kinetics of protoporphyrin fluorescence during ALA-PDT in human malignant skin tumors
The kinetics of specific immune responses in rhesus monkeys inoculated with live recombinant BCG expressing SIV Gag, Pol, Env, and Nef proteins
The kinetics-based electrochemical determination of serum glutamate pyruvate transaminase activity with a gold microelectrode
The ksr-1 gene encodes a novel protein kinase involved in ras-mediated signaling in C. elegans
The lab arm of the law
The labile iron pool in hepatocytes: prooxidant-induced increase in free iron precedes oxidative cell injury
The laboratory and clinical safety evaluation of a dentifrice containing hydrogen peroxide and baking soda
The lack of a role for saline solution inhalation in bronchoprovocation challenge
The lack of annexin A7 affects functions of primary astrocytes
The lake that time forgot
The lamb that roared
The land and freshwater snails of the Danish island Vejro
The land between Mendelian and multifactorial inheritance
The land of rising science
The land tortoise in Nepal: A review
The landing of the NEAR-Shoemaker spacecraft on asteroid 433 Eros
The landscape in 2025. Alternative future landscape scenarios: a means to consider agricultural policy
The language of covalent histone modifications
The language of genes
The language steamrollers
The large diverse gene family var encodes proteins involved in cytoadherence and antigenic variation of Plasmodium falciparum-infected erythrocytes
The large subunit of bacteriophage l's terminase plays a role in DNA translocation and packaging termination
The large variability in melatonin blood levels in ewes is under strong genetic influence
The large-scale organization of metabolic networks
The large-scale smoothness of the universe
The large-scale time-mean ocean circulation in the Nordic Seas and Arctic Ocean estimated from simplified dynamics
The largest, smallest, highest, lowest, longest, and shortest: extremes in ecology
The larva of Melobasis (Melobasis) vertebralis Carter (Coleoptera: Buprestidae)
The larvae of tiger beetles from central Asia (Coleoptera, Cicindelidae): Studies on tiger beetles, LXXII
The larval mite Endotrombicula pillersi (Acarina: Trombiculidae) as a species-specific parasite of a west African savannah frog (Phrynobatrachus francisci)
The larval morphology of Hadrocarabus lusitanicus Fabricius, 1801 (Col. Carabidae)
The larval optic nerve is required for the development of an identified serotonergic arborization in Drosophila melanogaster
The last RNA-binding repeat of the Escherichia coli ribosomal protein S1 is specifically involved in autogenous control
The last glacial-Holocene transition in southern Chile
The last interglacial
The last mountain
The last natural nuclear fission reactor
The last of the dinosaur titans: a new sauropod from Madagascar
The last phase of the reprotonation switch in bacteriorhodopsin: the transition between the M-type and the N-type protein conformation depends on hydration
The last step of the ethylene biosynthesis pathway in turnip tops (Brassica rapa) seeds: alterations relating to development and germination and its inhibition during desiccation
The last two cytoplasmic loops in the lactose permease of Escherichia coli comprise a discontinuous epitope for a monoclonal antibody
The last two geomagnetic polarity reversals recorded in high-deposition-rate sediment drifts
The lasting effects of adaptive plasticity: predator-induced tadpoles become long-legged frogs
The latch region of calcineurin B is involved in both immunosuppressant-immunophilin complex docking and phosphatase activation
The late Precambrian fossil Kimberella is a mollusc-like bilaterian organism
The late elongated hypocotyl mutation of Arabidopsis disrupts circadian rhythms and the photoperiodic control of flowering
The late prehistoric-early historic game sink in the northwestern United States
The latent-TGFb-binding-protein-1 (LTBP-1) is expressed in the organizer and regulates nodal and activin signaling
The lateral line can mediate rheotaxis in fish
The lateral line system of epigean and cave dwelling catfishes of the genus Rhamdia (Pimelodidae, Teleostei) in Mexico
The lateral line system of hagfishes (Craniata: Myxinoidea)
The lateral line system of two sympatric eastern Pacific gobiid fishes of the genus Lythrypnus (Teleostei: Gobidae)
The lateral pressure profile in membranes: a physical mechanism of general anesthesia
The latest for the lab
The latest news from Mars
The latest on Lyme
The latest releases
The latissimus dorsi flap in head and neck reconstructive surgery: A review of 121 procedures
The lattice Boltzmann method as a basis for ocean circulation modeling
The law of the jungle
The layered look in cortex
The leaching behavior of cement stabilized air polluton control residues: a comparison of field and laboratory investigations
The leaching of phosphorus and phosphate, sulphate and chloride anions from soil fertilized with animal slurry, manure and NPK
The lead content of blood serum
The lead fingerprints of gasoline contamination
The leader peptide of colicin V shares consensus sequences with leader peptides that are common among peptide bacteriocins produced by Gram-positive bacteria
The leafy vegetable amaranth (Amaranthus gangeticus) is a potent inhibitor of calcium availability and retention in rice-based diets
The leaning of the American diet
The lease-purchase decision for agricultural assets
The lectin jacalin specifically triggers cell signaling in CD4+ T lymphocytes
The lectins: The game is never over
The left ventricular performance and remodelling in early acute myocardial infarction
The left-end and right-end origins of minute virus of mice DNA differ in their capacity to direct episomal amplification and integration in vivo
The left-right coordinator: the role of Vg1 in organizing left-right axis formation
The legacy of Earth Day: reflections at a turning point
The legacy of Robert McCarthur: from geographical ecology to macroecology
The legacy of academic medicine and human exploitation in the Third Reich
The legacy of bobwhite research in south Texas
The legendary lotus
The legislation, enforcement, and further needs for biodiversity conservation in China
The length of a single turn controls the overall folding rate of three-fingered snake toxins
The lens organizes the anterior segment: specification of neural crest cell differentiation in the avian eye
The leptotene-zygotene transition of meiosis
The lesser known Edison
The leucine zippers of the HLH-LZ proteins Max and c-Myc preferentially form heterodimers
The leukocytic reaction of the human uterine cervix
The level of double bonds in blood lipid of patients with lung carcinoma
The lichid trilobite Borealarges n. gen., with species from the Silurian of Arctic Canada
The life and death of bare viscous bubbles
The life and death of laboratory teaching of medical physiology: a personal narrative. Part I
The life and times of W. O. Atwater (1844-1907)
The life and times of a clinical microbiologist
The life cycle of Echinoparyphium cinctum (Rudolphi, 1803) (Trematoda: Echinostomatidae) with re-examination and identification of its allied species from Europe and Asia
The life cycle of galaxies
The life cycles of the earthworm Lumbricus terrestris L. (Oligochaeta: Lumbricidae) in laboratory culture
The life history of Zizula hylax attenuata (T.P. Lucas) (Lepidoptera: Lycaenidae)
The life of Paul Dirac
The life of the first vertebrates
The lifetimes and energies of the first excited singlet states of diadinoxanthin and diatoxanthin: The role of these molecules in excess energy dissipation in algae
The ligand of the c-kit receptor promotes oocyte growth
The ligand-binding loops in the tunicate C-type lectin TC14 are rigid
The ligand-binding site of bovine b-lactoglobulin: evidence for a function?
The light at the end of the pipe
The light fantastic
The light field of microbenthic communities: Radiance distribution and microscale optics of sandy coastal sediments
The light:nutrient ratio in lakes: the balance of energy and materials affects ecosystem structure and process
The lighting research center
The lights shineth in darkness
The likeness of being: phylogenetically conserved molecular mechanisms of growth cone guidance
The lily leaf beetle is here to stay
The limestone facies of the Auernig and Carnizza formations (Auernig Group, Pontebba Supergroup: Carnic Alps)
The limitations of evidence
The limited effect of in situ phosphorus and nitrogen additions to seagrass beds on carbonate and terrigenous sediments in South Sulawesi, Indonesia
The limits of consensus: the environmental protection system in transition: toward a more desirable future
The limits of crop productivity
The limits of nature and the educational nature of limits
The limits of sharing
The limits to biogeographical distributions: insights from the northward range extension of the marine snail, Kelletia kelletii (Forbes, 1852)
The limits to growth
The limits to reproductive output: offspring size versus number in the sand lizard (Lacerta agilis)
The line on cherry tomatoes
The linear index model for establishing nutrient goals in the Dietary Approaches to Stop Hypertension trial
The linear-plasmid-encoded toxin produced by the yeast Pichia acaciae: characterization and comparison with the toxin of Kluyveromyces lactis
The lingering impact of the Scopes trial on high school biology textbooks
The link between 'green and economic success: environmental management as the crucial trigger between environmental and economic performance
The link between clay mineral weathering and the stabilization of Ni surface precipitates
The link between mRNA processing and transcription: communication works both ways
The link between precipitation, river runoff, and blooms of the toxic dinoflagellate Alexandrium tamarense in the St. Lawrence
The linkage between Upper Circumpolar Deep Water (UCDW) and phytoplankton assemblages on the west Antarctic Peninsula continental shelf
The linkage between magnesium binding and RNA folding
The linked variability of avenin-coding loci and quantitative traits determining the oat productivity
The lion emperors
The lipase from Staphylococcus aureus: Expression in Escherichia coli, large-scale purification and comparison of substrate specificity to Staphylococcus hyicus lipase
The lipid binding activity of the exchangeable apolipoprotein apolipophorin-III correlates with the formation of a partially folded conformation
The lipid composition and activity of phospholipase A2 in the placental membrane plasma of rats during hypoxic states
The lipid compositions of different regions of rat brain during development and aging
The lipid peroxidation system: Proteinase inhibitors-antioxidants in osteoarticular tuberculosis
The lipid-free structure of apolipoprotein A-I: effects of amino-terminal deletions
The lipooligosaccharide immunotype as a virulence determinant in Neisseria meningitidis
The little (lit) mutation cosegregates with the growth hormone releasing factor receptor on mouse chromosome 6
The little devil of death
The little giant
The little ice age blip
The little ice age- only the latest big chill
The little spacecraft that could
The littlest test-tube
The living Earth
The living classrooms idea
The lizard kings
The lizard lady of the Galapagos
The loach Misgurnus anguillicaudatus reduces amino acid catabolism and accumulates alanine and glutamine during aerial exposure
The load of the Taung child
The loader of the rings
The loading and initial elongation modules of rifamycin synthetase collaborate to produce mixed aryl ketide products
The loading module of rifamycin synthetase is an adenylation-thiolation didomain with substrate tolerance for substituted benzoates
The lobster navigators
The local C-fiber contribution to ozone-induced effects on the isolated guinea pig lung
The local distribution of highly divergent mitochondrial DNA haplotypes in toque macaques Macaca sinica at Polonnaruwa, Sri Lanka
The local faces of global change
The localization and phosphorylation of p47 are important for Golgi disassembly-assembly during the cell cycle
The localization of aldose reductase mRNA in the rat lens
The localization of chitin synthase in membranous vesicles (chitosomes) in Neurospora crassa
The localization of neuronal nitric oxide synthase may influence its role in neuronal precursor proliferation and synaptic maintenance
The localization of nuclear DNA helicase II in different nuclear compartments is linked to transcription
The localization of sodium-potassium activated adenosine triphosphatase in the inner ear
The localization problem: a review
The locomotor activity rhythm of the edible snail, Helix lucorum L., in symmetrical skeleton photoperiod regimes
The logic of carbon and nitrogen interactions in terrestrial ecosystems
The logic of human learning
The logic of livestock and deforestation in Amazonia
The logic of territory choice: implications for conservation and source-sink dynamics
The lonepair triloop: a new motif in RNA structure
The long and short of hedgehog signaling
The long and the short of it
The long arm of the immune system
The long road from Kyoto
The long shadow of Soviet plutonium production
The long trail of Shortia
The long trip to Earth
The long-acting GLP-1 derivative NN2211 ameliorates glycemia and increases b-cell mass in diabetic mice
The long-horned beetles of south Florida (Cerambycidae: Coleoptera): Biogeography and relationships with the Bahama Islands and Cuba
The long-lasting impact of postnatal neuropeptide Y
The long-run growth in obesity as a function of technological change
The long-term carbon cycle, fossil fuels and atmospheric composition
The long-term dynamics of barley seed infection by the fungi Bipolaris sorokiniana (Sacc.) Shoemaker and Fusarium sp. in Byelorussia
The long-term effects of bucillamine in the treatment of early-stage rheumatoid arthritis
The long-term stability of the boreal forest limit in subarctic Quebec
The longer isoform and Cys-1 disulfide bridge of rat surfactant protein A are not essential for phospholipid and type II cell interactions
The longest suspension bridge
The look of lightning
The looming threat of bioterrorism
The loose connective space of atrioventricular septum and its related structures
The lore and lure of dice
The loss of atmosphere from Mars
The loss of innocence
The lost orchid
The lost technology of ancient Greek rowing
The loudmouth of the woods
The loveliest aloe in the world
The loves of the plants
The low glycemic index diet: not yet ready for prime time
The low lysine content of ricin A chain reduces the risk of proteolytic degradation after translocation from the endoplasmic reticulum to the cytosol
The low specificity of the hyperventilation provocation test
The low temperature drying of soybean (Glycine max) seeds as a factor reducing injuries caused by exposure to chill during subsequent germination
The low-affinity ATP binding site of the Escherichia coli SecA dimer is localized at the subunit interface
The low-density lipoprotein receptor-related protein associates with calnexin, calreticulin, and protein disulfide isomerase in receptor-associated-protein-deficient fibroblasts
The low-grade lymphoproliferative disorders
The low-temperature crystal structure of the pure-spermine form of Z-DNA reveals binding of a spermine molecule in the minor groove
The lowdown on lead
The lower pathway operon for benzoate catabolism in biphenyl-utilizing Pseudomonas sp. strain IC and the nucleotide sequence of the bphE gene for catechol 2,3-dioxygenase
The lubricant of life: a proposal that solvent water promotes extremely fast conformational fluctuations in mobile heteropolypeptide structure
The lung HETEs (and EETs) up
The lure of Icarus
The lurking inconsistency
The lurking perils of Pfiesteria
The luteinizing hormone receptor
The luteinizing hormone receptor activates phospholipase C via preferential coupling to Gi2
The lux regulon of Vibrio fischeri alleviates type I restriction in Escherichia coli K12 cells
The lyase activity of the DNA repair protein b-polymerase protects from DNA-damage-induced cytotoxicity
The lymphocyte chemoattractant SDF-1 is a ligand for LESTR/fusin and blocks HIV-1 entry
The mPer2 gene encodes a functional component of the mammalian circadian clock
The mTOR/p70 S6K1 pathway regulates vascular smooth muscle cell differentiation
The machinery of mitochondrial inheritance and behavior
The machinery of thought
The mad ways of meiosis
The magic of marigolds
The magnetic attraction
The magnetic excitation spectrum and thermodynamics of high-Tc superconductors
The magnetic field and internal structure of Ganymede
The magnetic field of an isolated neutron star from X-ray cyclotron absorption lines
The magnetic nature of coronal holes
The magnetic stability of spin-dependent tunneling devices
The magnetic thickness of a recent submarine lava flow
The magnetic turnabout
The magnificent devastator gets around
The magnitude distribution of declustered earthquakes in Southern California
The magnitude of spring bacterial production in the North Atlantic Ocean
The magnitude of the allosteric conformational transition of aspartate transcarbamylase is altered by mutations
The mahogany protein is a receptor involved in suppression of obesity
The maintenance of a cline in the marine snail Littorina saxatilis: the role of home site advantage and hybrid fitness
The maintenance of gynodioecy and androdioecy in a metapopulation
The maintenance of nucleocytoplasmic polymorphism in a metapopulation: the case of gynodioecy
The maintenance of phenotypic plasticity as a signal detection problem
The maintenance of sex
The maintenance of sex by parasitism and mutation accumulation under epistatic fitness functions
The maintenance of species differences across a Heliconius hybrid zone
The maintenance of wild edible plant gathering in a Mapuche community of Patagonia
The maize mutant barren stalk1 is defective in axillary meristem development
The major HIV-1 packaging signal is an extended bulged stem loop whose structure is altered on interaction with the Gag polyprotein
The major cytoplasmic histone acetyltransferase in yeast: links to chromatin replication and histone metabolism
The major dog allergens, Can f 1 and Can f 2, are salivary lipocalin proteins: Cloning and immunological characterization of the recombinant forms
The major fibrous sheath polypeptide of mouse sperm: structural and functional similarities to the A-kinase anchoring proteins
The major homology region of the HIV-1 Gag precursor influences membrane affinity
The major soluble tubulins are found in mega Dalton (MDa) fractions in fully-grown oocytes and eggs but not in brain of the frog, Rana pipiens
The major substrates for TAP in vivo are derived from newly synthesized proteins
The major yolk protein in sea urchins is a transferrin-like, iron binding protein
The major, N2-Gua adduct of the (+)-anti-benzo(a)pyrene diol epoxide can be unstable in double-stranded DNA
The major, N2-Gua adduct of the (+)-anti-benzo(a)pyrene diol epoxide is capable of inducing G- >A and G- >C, in addition to G- >T, mutations
The major, N2-dG adduct of (+)-anti-B(a)PDE shows a dramatically different mutagenic specificity (predominantly, G - > A) in a 5'-CGT-3' sequence context
The majorite-pyrope + magnesiowustite assemblage: constraints on the history of shock veins in chondrites
The majority of lactococcal plasmids carry a highly related replicon
The making and breaking of sister chromatid cohesion
The making of Hazel Lane
The making of a compound leaf: genetic manipulation of leaf architecture in tomato
The making of a dream garden
The making of a vesicle
The male of Physohelea turgidipes (Diptera; Ceratopogonidae)
The male-specific region of the human Y chromosome is a mosaic of discrete sequence classes
The malonyl/acetyltransferase and b-ketoacyl synthase domains of the animal fatty acid synthase can cooperate with the acyl carrier protein domain of either subunit
The mammal fauna from La Defense (Calcaire Grossier, Upper Lutetian), to Puteaux, suburbs of Paris: Artiodactyla and Lophiodon parisiense Gervais, 1848-1852
The mammalian DNA polymerase d-proliferating cell nuclear antigen-template-primer complex: molecular characterization by direct binding
The mammalian Odz gene family: homologs of a Drosophila pair-rule gene with expression implying distinct yet overlapping developmental roles
The mammalian Rab family of small GTPases: definition of family and subfamily sequence motifs suggests a mechanism for functional specificity in the Ras superfamily
The mammalian Sec6/8 complex interacts with Ca2+ signaling complexes and regulates their activity
The mammalian UV response: c-Jun induction is required for exit from p53-imposed growth arrest
The mammalian centromere: Its molecular architecture
The mammalian metabolite, 2-methoxyestradiol, affects P53 levels and apoptosis induction in transformed cells but not in normal cells
The mammalian neuroendocrine hormone norepinephrine supplies iron for bacterial growth in the presence of transferrin or lactoferrin
The mammalian sodium channel BNC1 is required for normal touch sensation
The mammalian twisted gastrulation gene functions in foregut and craniofacial development
The mammals that conquered the seas
The man they love to hate
The man who knew doses
The man who moves mountain laurels
The man who would conquer malaria
The man who would spin genes into gold
The management of placenta percreta: Conservative and operative strategies
The manganese binding site of manganese peroxidase: characterization of an Asp179Asn site-directed mutant protein
The manganese cation disrupts membrane dynamics along the secretory pathway
The manganese center of oxygen-evolving and Ca2+-depleted photosystem II: a pulsed EPR spectroscopy study
The manganese-stabilizing protein of photosystem II modifies the in vivo deactivation and photoactivation kinetics of the H2O oxidation complex in Synechocystis sp. PCC6803
The manifold gain of sexual reproduction
The manifold ways of perception
The manipulation of plant toxins by a food-hoarding herbivore, Ochotona princeps
The mannose-binding protein A region of glutamic acid185-alanine221 can functionally replace the surfactant protein A region of glutamic acid195-phenylalanine228 without loss of interaction with lipids and alveolar type II cells
The mantle's lava lamp
The many dangers of relying on a DNA database
The many faces of WAS protein
The many faces of adaptation
The many faces of chromatin remodeling: SWItching beyond transcription
The many faces of predation: how induction, selection, and thinning combine to alter prey phenotypes
The many faces of shrub roses
The many faces of the gene
The many faces of the tumor suppressor gene APC
The many faces of vitamin B12: catalysis by cobalamin-dependent enzymes
The many interfaces of Mre11
The many lives of paste tomatoes
The many roles of c-Myc in apoptosis
The many roles of the transcriptional regulator CTCF
The many shades of sunlight
The many shades of woodland gardening
The many tales of a tail: carboxyl-terminal tail heterogeneity specializes histone H2A variants for defined chromatin function
The mapmaking mind
The march of paradigms